drop a few unused fields from struct text_object
[monky] / src / core.c
1 /* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
2  * vim: ts=4 sw=4 noet ai cindent syntax=c
3  *
4  * Conky, a system monitor, based on torsmo
5  *
6  * Any original torsmo code is licensed under the BSD license
7  *
8  * All code written since the fork of torsmo is licensed under the GPL
9  *
10  * Please see COPYING for details
11  *
12  * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
13  * Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
14  *      (see AUTHORS)
15  * All rights reserved.
16  *
17  * This program is free software: you can redistribute it and/or modify
18  * it under the terms of the GNU General Public License as published by
19  * the Free Software Foundation, either version 3 of the License, or
20  * (at your option) any later version.
21  *
22  * This program is distributed in the hope that it will be useful,
23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
25  * GNU General Public License for more details.
26  * You should have received a copy of the GNU General Public License
27  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
28  *
29  */
30
31 /* local headers */
32 #include "core.h"
33 #include "text_object.h"
34 #include "algebra.h"
35 #include "build.h"
36 #include "colours.h"
37 #include "combine.h"
38 #include "diskio.h"
39 #include "exec.h"
40 #ifdef X11
41 #include "fonts.h"
42 #endif
43 #include "fs.h"
44 #ifdef HAVE_ICONV
45 #include "iconv_tools.h"
46 #endif
47 #include "logging.h"
48 #include "mixer.h"
49 #include "mail.h"
50 #include "mboxscan.h"
51 #include "net_stat.h"
52 #ifdef NVIDIA
53 #include "nvidia.h"
54 #endif
55 #include "read_tcp.h"
56 #include "scroll.h"
57 #include "specials.h"
58 #include "temphelper.h"
59 #include "template.h"
60 #include "tailhead.h"
61 #include "timeinfo.h"
62 #include "top.h"
63
64 #ifdef NCURSES
65 #include <ncurses.h>
66 #endif
67
68 /* check for OS and include appropriate headers */
69 #if defined(__linux__)
70 #include "linux.h"
71 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
72 #include "freebsd.h"
73 #elif defined(__OpenBSD__)
74 #include "openbsd.h"
75 #endif
76
77 /* OS specific prototypes to be implemented by linux.c & Co. */
78 void update_entropy(void);
79
80 #include <string.h>
81 #include <ctype.h>
82
83 /* strip a leading /dev/ if any, following symlinks first
84  *
85  * BEWARE: this function returns a pointer to static content
86  *         which gets overwritten in consecutive calls. I.e.:
87  *         this function is NOT reentrant.
88  */
89 const char *dev_name(const char *path)
90 {
91         static char buf[255];   /* should be enough for pathnames */
92         ssize_t buflen;
93
94         if (!path)
95                 return NULL;
96
97 #define DEV_NAME(x) \
98   x != NULL && strlen(x) > 5 && strncmp(x, "/dev/", 5) == 0 ? x + 5 : x
99         if ((buflen = readlink(path, buf, 254)) == -1)
100                 return DEV_NAME(path);
101         buf[buflen] = '\0';
102         return DEV_NAME(buf);
103 #undef DEV_NAME
104 }
105
106 static struct text_object *new_text_object_internal(void)
107 {
108         struct text_object *obj = malloc(sizeof(struct text_object));
109         memset(obj, 0, sizeof(struct text_object));
110         return obj;
111 }
112
113 static struct text_object *create_plain_text(const char *s)
114 {
115         struct text_object *obj;
116
117         if (s == NULL || *s == '\0') {
118                 return NULL;
119         }
120
121         obj = new_text_object_internal();
122
123         obj->type = OBJ_text;
124         obj->data.s = strndup(s, text_buffer_size);
125         return obj;
126 }
127
128 /* construct_text_object() creates a new text_object */
129 struct text_object *construct_text_object(const char *s, const char *arg, long
130                 line, void **ifblock_opaque, void *free_at_crash)
131 {
132         // struct text_object *obj = new_text_object();
133         struct text_object *obj = new_text_object_internal();
134
135         obj->line = line;
136
137 /* helper defines for internal use only */
138 #define __OBJ_HEAD(a, n) if (!strcmp(s, #a)) { \
139         obj->type = OBJ_##a; add_update_callback(n);
140 #define __OBJ_IF obj_be_ifblock_if(ifblock_opaque, obj)
141 #define __OBJ_ARG(...) if (!arg) { CRIT_ERR(obj, free_at_crash, __VA_ARGS__); }
142
143 /* defines to be used below */
144 #define OBJ(a, n) __OBJ_HEAD(a, n) {
145 #define OBJ_ARG(a, n, ...) __OBJ_HEAD(a, n) __OBJ_ARG(__VA_ARGS__) {
146 #define OBJ_IF(a, n) __OBJ_HEAD(a, n) __OBJ_IF; {
147 #define OBJ_IF_ARG(a, n, ...) __OBJ_HEAD(a, n) __OBJ_ARG(__VA_ARGS__) __OBJ_IF; {
148 #define END } } else
149
150 #ifdef X11
151         if (s[0] == '#') {
152                 obj->type = OBJ_color;
153                 obj->data.l = get_x11_color(s);
154         } else
155 #endif /* X11 */
156 #ifdef __OpenBSD__
157         OBJ(freq, 0)
158 #else
159         OBJ(acpitemp, 0)
160                 obj->data.i = open_acpi_temperature(arg);
161         END OBJ(acpiacadapter, 0)
162         END OBJ(freq, 0)
163 #endif /* !__OpenBSD__ */
164                 get_cpu_count();
165                 if (!arg || !isdigit(arg[0]) || strlen(arg) >= 2 || atoi(&arg[0]) == 0
166                                 || atoi(&arg[0]) > info.cpu_count) {
167                         obj->data.i = 1;
168                         /* NORM_ERR("freq: Invalid CPU number or you don't have that many CPUs! "
169                                 "Displaying the clock for CPU 1."); */
170                 } else {
171                         obj->data.i = atoi(&arg[0]);
172                 }
173         END OBJ(freq_g, 0)
174                 get_cpu_count();
175                 if (!arg || !isdigit(arg[0]) || strlen(arg) >= 2 || atoi(&arg[0]) == 0
176                                 || atoi(&arg[0]) > info.cpu_count) {
177                         obj->data.i = 1;
178                         /* NORM_ERR("freq_g: Invalid CPU number or you don't have that many "
179                                 "CPUs! Displaying the clock for CPU 1."); */
180                 } else {
181                         obj->data.i = atoi(&arg[0]);
182                 }
183         END OBJ_ARG(read_tcp, 0, "read_tcp: Needs \"(host) port\" as argument(s)")
184                 parse_read_tcp_arg(obj, arg, free_at_crash);
185 #if defined(__linux__)
186         END OBJ(voltage_mv, 0)
187                 get_cpu_count();
188                 if (!arg || !isdigit(arg[0]) || strlen(arg) >= 2 || atoi(&arg[0]) == 0
189                                 || atoi(&arg[0]) > info.cpu_count) {
190                         obj->data.i = 1;
191                         /* NORM_ERR("voltage_mv: Invalid CPU number or you don't have that many "
192                                 "CPUs! Displaying voltage for CPU 1."); */
193                 } else {
194                         obj->data.i = atoi(&arg[0]);
195                 }
196         END OBJ(voltage_v, 0)
197                 get_cpu_count();
198                 if (!arg || !isdigit(arg[0]) || strlen(arg) >= 2 || atoi(&arg[0]) == 0
199                                 || atoi(&arg[0]) > info.cpu_count) {
200                         obj->data.i = 1;
201                         /* NORM_ERR("voltage_v: Invalid CPU number or you don't have that many "
202                                 "CPUs! Displaying voltage for CPU 1."); */
203                 } else {
204                         obj->data.i = atoi(&arg[0]);
205                 }
206
207 #ifdef HAVE_IWLIB
208         END OBJ(wireless_essid, &update_net_stats)
209                 parse_net_stat_arg(obj, arg, free_at_crash);
210         END OBJ(wireless_mode, &update_net_stats)
211                 parse_net_stat_arg(obj, arg, free_at_crash);
212         END OBJ(wireless_bitrate, &update_net_stats)
213                 parse_net_stat_arg(obj, arg, free_at_crash);
214         END OBJ(wireless_ap, &update_net_stats)
215                 parse_net_stat_arg(obj, arg, free_at_crash);
216         END OBJ(wireless_link_qual, &update_net_stats)
217                 parse_net_stat_arg(obj, arg, free_at_crash);
218         END OBJ(wireless_link_qual_max, &update_net_stats)
219                 parse_net_stat_arg(obj, arg, free_at_crash);
220         END OBJ(wireless_link_qual_perc, &update_net_stats)
221                 parse_net_stat_arg(obj, arg, free_at_crash);
222         END OBJ(wireless_link_bar, &update_net_stats)
223                 parse_net_stat_bar_arg(obj, arg, free_at_crash);
224 #endif /* HAVE_IWLIB */
225
226 #endif /* __linux__ */
227
228 #ifndef __OpenBSD__
229         END OBJ(acpifan, 0)
230         END OBJ(battery, 0)
231                 char bat[64];
232
233                 if (arg) {
234                         sscanf(arg, "%63s", bat);
235                 } else {
236                         strcpy(bat, "BAT0");
237                 }
238                 obj->data.s = strndup(bat, text_buffer_size);
239         END OBJ(battery_short, 0)
240                 char bat[64];
241
242                 if (arg) {
243                         sscanf(arg, "%63s", bat);
244                 } else {
245                         strcpy(bat, "BAT0");
246                 }
247                 obj->data.s = strndup(bat, text_buffer_size);
248         END OBJ(battery_time, 0)
249                 char bat[64];
250
251                 if (arg) {
252                         sscanf(arg, "%63s", bat);
253                 } else {
254                         strcpy(bat, "BAT0");
255                 }
256                 obj->data.s = strndup(bat, text_buffer_size);
257         END OBJ(battery_percent, 0)
258                 char bat[64];
259
260                 if (arg) {
261                         sscanf(arg, "%63s", bat);
262                 } else {
263                         strcpy(bat, "BAT0");
264                 }
265                 obj->data.s = strndup(bat, text_buffer_size);
266         END OBJ(battery_bar, 0)
267                 char bat[64];
268                 if (arg) {
269                         arg = scan_bar(obj, arg);
270                         sscanf(arg, "%63s", bat);
271                 } else {
272                         strcpy(bat, "BAT0");
273                 }
274                 obj->data.s = strndup(bat, text_buffer_size);
275 #endif /* !__OpenBSD__ */
276
277 #if defined(__linux__)
278         END OBJ_ARG(disk_protect, 0, "disk_protect needs an argument")
279                 obj->data.s = strndup(dev_name(arg), text_buffer_size);
280         END OBJ(i8k_version, &update_i8k)
281         END OBJ(i8k_bios, &update_i8k)
282         END OBJ(i8k_serial, &update_i8k)
283         END OBJ(i8k_cpu_temp, &update_i8k)
284         END OBJ(i8k_left_fan_status, &update_i8k)
285         END OBJ(i8k_right_fan_status, &update_i8k)
286         END OBJ(i8k_left_fan_rpm, &update_i8k)
287         END OBJ(i8k_right_fan_rpm, &update_i8k)
288         END OBJ(i8k_ac_status, &update_i8k)
289         END OBJ(i8k_buttons_status, &update_i8k)
290 #if defined(IBM)
291         END OBJ(ibm_fan, 0)
292         END OBJ_ARG(ibm_temps, &get_ibm_acpi_temps, "ibm_temps: needs an argument")
293                 parse_ibm_temps_arg(obj, arg);
294         END OBJ(ibm_volume, 0)
295         END OBJ(ibm_brightness, 0)
296 #endif
297         /* information from sony_laptop kernel module
298          * /sys/devices/platform/sony-laptop */
299         END OBJ(sony_fanspeed, 0)
300         END OBJ_IF(if_gw, &update_gateway_info)
301         END OBJ_ARG(ioscheduler, 0, "get_ioscheduler needs an argument (e.g. hda)")
302                 obj->data.s = strndup(dev_name(arg), text_buffer_size);
303         END OBJ(laptop_mode, 0)
304         END OBJ_ARG(pb_battery, 0, "pb_battery: needs one argument: status, percent or time")
305                 if (strcmp(arg, "status") == EQUAL) {
306                         obj->data.i = PB_BATT_STATUS;
307                 } else if (strcmp(arg, "percent") == EQUAL) {
308                         obj->data.i = PB_BATT_PERCENT;
309                 } else if (strcmp(arg, "time") == EQUAL) {
310                         obj->data.i = PB_BATT_TIME;
311                 } else {
312                         NORM_ERR("pb_battery: illegal argument '%s', defaulting to status", arg);
313                         obj->data.i = PB_BATT_STATUS;
314                 }
315 #endif /* __linux__ */
316 #if (defined(__FreeBSD__) || defined(__linux__))
317         END OBJ_IF_ARG(if_up, 0, "if_up needs an argument")
318                 parse_if_up_arg(obj, arg);
319 #endif
320 #if defined(__OpenBSD__)
321         END OBJ_ARG(obsd_sensors_temp, 0, "obsd_sensors_temp: needs an argument")
322                 parse_obsd_sensor(obj, arg);
323         END OBJ_ARG(obsd_sensors_fan, 0, "obsd_sensors_fan: needs 2 arguments (device and sensor number)")
324                 parse_obsd_sensor(obj, arg);
325         END OBJ_ARG(obsd_sensors_volt, 0, "obsd_sensors_volt: needs 2 arguments (device and sensor number)")
326                 parse_obsd_sensor(obj, arg);
327         END OBJ(obsd_vendor, 0)
328         END OBJ(obsd_product, 0)
329 #endif /* __OpenBSD__ */
330         END OBJ(buffers, &update_meminfo)
331         END OBJ(cached, &update_meminfo)
332 #define SCAN_CPU(__arg, __var) { \
333         int __offset = 0; \
334         if (__arg && sscanf(__arg, " cpu%d %n", &__var, &__offset) > 0) \
335                 __arg += __offset; \
336         else \
337                 __var = 0; \
338 }
339         END OBJ(cpu, &update_cpu_usage)
340                 SCAN_CPU(arg, obj->data.i);
341                 DBGP2("Adding $cpu for CPU %d", obj->data.i);
342 #ifdef X11
343         END OBJ(cpugauge, &update_cpu_usage)
344                 SCAN_CPU(arg, obj->data.i);
345                 scan_gauge(obj, arg);
346                 DBGP2("Adding $cpugauge for CPU %d", obj->data.i);
347 #endif /* X11 */
348         END OBJ(cpubar, &update_cpu_usage)
349                 SCAN_CPU(arg, obj->data.i);
350                 scan_bar(obj, arg);
351                 DBGP2("Adding $cpubar for CPU %d", obj->data.i);
352 #ifdef X11
353         END OBJ(cpugraph, &update_cpu_usage)
354                 char *buf = 0;
355                 SCAN_CPU(arg, obj->data.i);
356                 buf = scan_graph(obj, arg);
357                 DBGP2("Adding $cpugraph for CPU %d", obj->data.i);
358                 if (buf) free(buf);
359         END OBJ(loadgraph, &update_load_average)
360                 scan_loadgraph_arg(obj, arg);
361 #endif /* X11 */
362         END OBJ(diskio, &update_diskio)
363                 parse_diskio_arg(obj, arg);
364         END OBJ(diskio_read, &update_diskio)
365                 parse_diskio_arg(obj, arg);
366         END OBJ(diskio_write, &update_diskio)
367                 parse_diskio_arg(obj, arg);
368 #ifdef X11
369         END OBJ(diskiograph, &update_diskio)
370                 parse_diskiograph_arg(obj, arg);
371         END OBJ(diskiograph_read, &update_diskio)
372                 parse_diskiograph_arg(obj, arg);
373         END OBJ(diskiograph_write, &update_diskio)
374                 parse_diskiograph_arg(obj, arg);
375 #endif /* X11 */
376         END OBJ(color, 0)
377 #ifdef X11
378                 if (output_methods & TO_X) {
379                         obj->data.l = arg ? get_x11_color(arg) : default_fg_color;
380                         set_current_text_color(obj->data.l);
381                 }
382 #endif /* X11 */
383 #ifdef NCURSES
384                 if (output_methods & TO_NCURSES) {
385                         obj->data.l = COLOR_WHITE;
386                         if(arg) {
387                                 if(strcasecmp(arg, "red") == 0) {
388                                         obj->data.l = COLOR_RED;
389                                 }else if(strcasecmp(arg, "green") == 0) {
390                                         obj->data.l = COLOR_GREEN;
391                                 }else if(strcasecmp(arg, "yellow") == 0) {
392                                         obj->data.l = COLOR_YELLOW;
393                                 }else if(strcasecmp(arg, "blue") == 0) {
394                                         obj->data.l = COLOR_BLUE;
395                                 }else if(strcasecmp(arg, "magenta") == 0) {
396                                         obj->data.l = COLOR_MAGENTA;
397                                 }else if(strcasecmp(arg, "cyan") == 0) {
398                                         obj->data.l = COLOR_CYAN;
399                                 }else if(strcasecmp(arg, "black") == 0) {
400                                         obj->data.l = COLOR_BLACK;
401                                 }
402                         }
403                         set_current_text_color(obj->data.l);
404                         init_pair(obj->data.l, obj->data.l, COLOR_BLACK);
405                 }
406 #endif /* NCURSES */
407         END OBJ(color0, 0)
408                 obj->data.l = color0;
409                 set_current_text_color(obj->data.l);
410         END OBJ(color1, 0)
411                 obj->data.l = color1;
412                 set_current_text_color(obj->data.l);
413         END OBJ(color2, 0)
414                 obj->data.l = color2;
415                 set_current_text_color(obj->data.l);
416         END OBJ(color3, 0)
417                 obj->data.l = color3;
418                 set_current_text_color(obj->data.l);
419         END OBJ(color4, 0)
420                 obj->data.l = color4;
421                 set_current_text_color(obj->data.l);
422         END OBJ(color5, 0)
423                 obj->data.l = color5;
424                 set_current_text_color(obj->data.l);
425         END OBJ(color6, 0)
426                 obj->data.l = color6;
427                 set_current_text_color(obj->data.l);
428         END OBJ(color7, 0)
429                 obj->data.l = color7;
430                 set_current_text_color(obj->data.l);
431         END OBJ(color8, 0)
432                 obj->data.l = color8;
433                 set_current_text_color(obj->data.l);
434         END OBJ(color9, 0)
435                 obj->data.l = color9;
436                 set_current_text_color(obj->data.l);
437 #ifdef X11
438         END OBJ(font, 0)
439                 obj->data.s = scan_font(arg);
440 #endif /* X11 */
441         END OBJ(conky_version, 0)
442         END OBJ(conky_build_date, 0)
443         END OBJ(conky_build_arch, 0)
444         END OBJ(downspeed, &update_net_stats)
445                 parse_net_stat_arg(obj, arg, free_at_crash);
446         END OBJ(downspeedf, &update_net_stats)
447                 parse_net_stat_arg(obj, arg, free_at_crash);
448 #ifdef X11
449         END OBJ(downspeedgraph, &update_net_stats)
450                 parse_net_stat_graph_arg(obj, arg, free_at_crash);
451 #endif /* X11 */
452         END OBJ(else, 0)
453                 obj_be_ifblock_else(ifblock_opaque, obj);
454         END OBJ(endif, 0)
455                 obj_be_ifblock_endif(ifblock_opaque, obj);
456         END OBJ(eval, 0)
457                 obj->data.s = strndup(arg ? arg : "", text_buffer_size);
458 #if defined(IMLIB2) && defined(X11)
459         END OBJ(image, 0)
460                 obj->data.s = strndup(arg ? arg : "", text_buffer_size);
461 #endif /* IMLIB2 */
462         END OBJ(exec, 0)
463                 scan_exec_arg(obj, arg);
464         END OBJ(execp, 0)
465                 scan_exec_arg(obj, arg);
466         END OBJ(execbar, 0)
467                 scan_exec_arg(obj, arg);
468 #ifdef X11
469         END OBJ(execgauge, 0)
470                 scan_exec_arg(obj, arg);
471         END OBJ(execgraph, 0)
472                 scan_execgraph_arg(obj, arg);
473 #endif /* X11 */
474         END OBJ_ARG(execibar, 0, "execibar needs arguments")
475                 scan_execi_arg(obj, arg);
476 #ifdef X11
477         END OBJ_ARG(execigraph, 0, "execigraph needs arguments")
478                 scan_execgraph_arg(obj, arg);
479         END OBJ_ARG(execigauge, 0, "execigauge needs arguments")
480                 scan_execi_arg(obj, arg);
481 #endif /* X11 */
482         END OBJ_ARG(execi, 0, "execi needs arguments")
483                 scan_execi_arg(obj, arg);
484         END OBJ_ARG(execpi, 0, "execpi needs arguments")
485                 scan_execi_arg(obj, arg);
486         END OBJ_ARG(texeci, 0, "texeci needs arguments")
487                 scan_execi_arg(obj, arg);
488         END OBJ(pre_exec, 0)
489                 scan_pre_exec_arg(obj, arg);
490         END OBJ(fs_bar, &update_fs_stats)
491                 init_fs_bar(obj, arg);
492         END OBJ(fs_bar_free, &update_fs_stats)
493                 init_fs_bar(obj, arg);
494         END OBJ(fs_free, &update_fs_stats)
495                 init_fs(obj, arg);
496         END OBJ(fs_used_perc, &update_fs_stats)
497                 init_fs(obj, arg);
498         END OBJ(fs_free_perc, &update_fs_stats)
499                 init_fs(obj, arg);
500         END OBJ(fs_size, &update_fs_stats)
501                 init_fs(obj, arg);
502         END OBJ(fs_type, &update_fs_stats)
503                 init_fs(obj, arg);
504         END OBJ(fs_used, &update_fs_stats)
505                 init_fs(obj, arg);
506         END OBJ(hr, 0)
507                 obj->data.i = arg ? atoi(arg) : 1;
508         END OBJ(nameserver, &update_dns_data)
509                 parse_nameserver_arg(obj, arg);
510         END OBJ(offset, 0)
511                 obj->data.i = arg ? atoi(arg) : 1;
512         END OBJ(voffset, 0)
513                 obj->data.i = arg ? atoi(arg) : 1;
514         END OBJ_ARG(goto, 0, "goto needs arguments")
515                 obj->data.i = atoi(arg);
516         END OBJ(tab, 0)
517                 scan_tab(obj, arg);
518 #ifdef __linux__
519         END OBJ_ARG(i2c, 0, "i2c needs arguments")
520                 parse_i2c_sensor(obj, arg);
521         END OBJ_ARG(platform, 0, "platform needs arguments")
522                 parse_platform_sensor(obj, arg);
523         END OBJ_ARG(hwmon, 0, "hwmon needs argumanets")
524                 parse_hwmon_sensor(obj, arg);
525 #endif /* __linux__ */
526
527         END
528         /* we have four different types of top (top, top_mem, top_time and top_io). To
529          * avoid having almost-same code four times, we have this special
530          * handler. */
531         if (strncmp(s, "top", 3) == EQUAL) {
532                 add_update_callback(&update_meminfo);
533                 add_update_callback(&update_top);
534                 if (!parse_top_args(s, arg, obj)) {
535                         return NULL;
536                 }
537         } else OBJ(addr, &update_net_stats)
538                 parse_net_stat_arg(obj, arg, free_at_crash);
539 #if defined(__linux__)
540         END OBJ(addrs, &update_net_stats)
541                 parse_net_stat_arg(obj, arg, free_at_crash);
542 #endif /* __linux__ */
543         END OBJ_ARG(tail, 0, "tail needs arguments")
544                 init_tailhead("tail", arg, obj, free_at_crash);
545         END OBJ_ARG(head, 0, "head needs arguments")
546                 init_tailhead("head", arg, obj, free_at_crash);
547         END OBJ_ARG(lines, 0, "lines needs an argument")
548                 obj->data.s = strndup(arg, text_buffer_size);
549         END OBJ_ARG(words, 0, "words needs a argument")
550                 obj->data.s = strndup(arg, text_buffer_size);
551         END OBJ(loadavg, &update_load_average)
552                 scan_loadavg_arg(obj, arg);
553         END OBJ_IF_ARG(if_empty, 0, "if_empty needs an argument")
554                 obj->data.ifblock.s = strndup(arg, text_buffer_size);
555                 obj->sub = malloc(sizeof(struct text_object));
556                 extract_variable_text_internal(obj->sub, obj->data.ifblock.s);
557         END OBJ_IF_ARG(if_match, 0, "if_match needs arguments")
558                 obj->data.ifblock.s = strndup(arg, text_buffer_size);
559                 obj->sub = malloc(sizeof(struct text_object));
560                 extract_variable_text_internal(obj->sub, obj->data.ifblock.s);
561         END OBJ_IF_ARG(if_existing, 0, "if_existing needs an argument or two")
562                 char buf1[256], buf2[256];
563                 int r = sscanf(arg, "%255s %255[^\n]", buf1, buf2);
564
565                 if (r == 1) {
566                         obj->data.ifblock.s = strndup(buf1, text_buffer_size);
567                         obj->data.ifblock.str = NULL;
568                 } else {
569                         obj->data.ifblock.s = strndup(buf1, text_buffer_size);
570                         obj->data.ifblock.str = strndup(buf2, text_buffer_size);
571                 }
572                 DBGP("if_existing: '%s' '%s'", obj->data.ifblock.s, obj->data.ifblock.str);
573         END OBJ_IF_ARG(if_mounted, 0, "if_mounted needs an argument")
574                 obj->data.ifblock.s = strndup(arg, text_buffer_size);
575 #ifdef __linux__
576         END OBJ_IF_ARG(if_running, &update_top, "if_running needs an argument")
577                 top_running = 1;
578                 obj->data.ifblock.s = strndup(arg, text_buffer_size);
579 #else
580         END OBJ_IF_ARG(if_running, 0, "if_running needs an argument")
581                 char buf[256];
582
583                 snprintf(buf, 256, "pidof %s >/dev/null", arg);
584                 obj->data.ifblock.s = strndup(buf, text_buffer_size);
585 #endif
586         END OBJ(kernel, 0)
587         END OBJ(machine, 0)
588         END OBJ(mails, 0)
589                 parse_local_mail_args(obj, arg);
590         END OBJ(new_mails, 0)
591                 parse_local_mail_args(obj, arg);
592         END OBJ(seen_mails, 0)
593                 parse_local_mail_args(obj, arg);
594         END OBJ(unseen_mails, 0)
595                 parse_local_mail_args(obj, arg);
596         END OBJ(flagged_mails, 0)
597                 parse_local_mail_args(obj, arg);
598         END OBJ(unflagged_mails, 0)
599                 parse_local_mail_args(obj, arg);
600         END OBJ(forwarded_mails, 0)
601                 parse_local_mail_args(obj, arg);
602         END OBJ(unforwarded_mails, 0)
603                 parse_local_mail_args(obj, arg);
604         END OBJ(replied_mails, 0)
605                 parse_local_mail_args(obj, arg);
606         END OBJ(unreplied_mails, 0)
607                 parse_local_mail_args(obj, arg);
608         END OBJ(draft_mails, 0)
609                 parse_local_mail_args(obj, arg);
610         END OBJ(trashed_mails, 0)
611                 parse_local_mail_args(obj, arg);
612         END OBJ(mboxscan, 0)
613                 parse_mboxscan_arg(obj, arg);
614         END OBJ(mem, &update_meminfo)
615         END OBJ(memeasyfree, &update_meminfo)
616         END OBJ(memfree, &update_meminfo)
617         END OBJ(memmax, &update_meminfo)
618         END OBJ(memperc, &update_meminfo)
619 #ifdef X11
620         END OBJ(memgauge, &update_meminfo)
621                 scan_gauge(obj, arg);
622 #endif /* X11*/
623         END OBJ(membar, &update_meminfo)
624                 scan_bar(obj, arg);
625 #ifdef X11
626         END OBJ(memgraph, &update_meminfo)
627                 char *buf = 0;
628                 buf = scan_graph(obj, arg);
629
630                 if (buf) free(buf);
631 #endif /* X11*/
632         END OBJ(mixer, 0)
633                 parse_mixer_arg(obj, arg);
634         END OBJ(mixerl, 0)
635                 parse_mixer_arg(obj, arg);
636         END OBJ(mixerr, 0)
637                 parse_mixer_arg(obj, arg);
638 #ifdef X11
639         END OBJ(mixerbar, 0)
640                 scan_mixer_bar(obj, arg);
641         END OBJ(mixerlbar, 0)
642                 scan_mixer_bar(obj, arg);
643         END OBJ(mixerrbar, 0)
644                 scan_mixer_bar(obj, arg);
645 #endif
646         END OBJ_IF(if_mixer_mute, 0)
647                 parse_mixer_arg(obj, arg);
648 #ifdef X11
649         END OBJ(monitor, &update_x11info)
650         END OBJ(monitor_number, &update_x11info)
651         END OBJ(desktop, &update_x11info)
652         END OBJ(desktop_number, &update_x11info)
653         END OBJ(desktop_name, &update_x11info)
654 #endif
655         END OBJ(nodename, 0)
656         END OBJ(processes, &update_total_processes)
657         END OBJ(running_processes, &update_running_processes)
658         END OBJ(shadecolor, 0)
659 #ifdef X11
660                 obj->data.l = arg ? get_x11_color(arg) : default_bg_color;
661 #endif /* X11 */
662         END OBJ(outlinecolor, 0)
663 #ifdef X11
664                 obj->data.l = arg ? get_x11_color(arg) : default_out_color;
665 #endif /* X11 */
666         END OBJ(stippled_hr, 0)
667 #ifdef X11
668                 scan_stippled_hr(obj, arg);
669 #endif /* X11 */
670         END OBJ(swap, &update_meminfo)
671         END OBJ(swapfree, &update_meminfo)
672         END OBJ(swapmax, &update_meminfo)
673         END OBJ(swapperc, &update_meminfo)
674         END OBJ(swapbar, &update_meminfo)
675                 scan_bar(obj, arg);
676         END OBJ(sysname, 0)
677         END OBJ(time, 0)
678                 scan_time(obj, arg);
679         END OBJ(utime, 0)
680                 scan_time(obj, arg);
681         END OBJ(tztime, 0)
682                 scan_tztime(obj, arg);
683 #ifdef HAVE_ICONV
684         END OBJ_ARG(iconv_start, 0, "Iconv requires arguments")
685                 init_iconv_start(obj, free_at_crash, arg);
686         END OBJ(iconv_stop, 0)
687                 init_iconv_stop();
688 #endif
689         END OBJ(totaldown, &update_net_stats)
690                 parse_net_stat_arg(obj, arg, free_at_crash);
691         END OBJ(totalup, &update_net_stats)
692                 parse_net_stat_arg(obj, arg, free_at_crash);
693         END OBJ(updates, 0)
694         END OBJ_IF(if_updatenr, 0)
695                 obj->data.ifblock.i = arg ? atoi(arg) : 0;
696                 if(obj->data.ifblock.i == 0) CRIT_ERR(obj, free_at_crash, "if_updatenr needs a number above 0 as argument");
697                 set_updatereset(obj->data.ifblock.i > get_updatereset() ? obj->data.ifblock.i : get_updatereset());
698         END OBJ(alignr, 0)
699                 obj->data.i = arg ? atoi(arg) : 0;
700         END OBJ(alignc, 0)
701                 obj->data.i = arg ? atoi(arg) : 0;
702         END OBJ(upspeed, &update_net_stats)
703                 parse_net_stat_arg(obj, arg, free_at_crash);
704         END OBJ(upspeedf, &update_net_stats)
705                 parse_net_stat_arg(obj, arg, free_at_crash);
706 #ifdef X11
707         END OBJ(upspeedgraph, &update_net_stats)
708                 parse_net_stat_graph_arg(obj, arg, free_at_crash);
709 #endif
710         END OBJ(uptime_short, &update_uptime)
711         END OBJ(uptime, &update_uptime)
712         END OBJ(user_names, &update_users)
713         END OBJ(user_times, &update_users)
714         END OBJ(user_terms, &update_users)
715         END OBJ(user_number, &update_users)
716 #if defined(__linux__)
717         END OBJ(gw_iface, &update_gateway_info)
718         END OBJ(gw_ip, &update_gateway_info)
719 #endif /* !__linux__ */
720 #ifndef __OpenBSD__
721         END OBJ(adt746xcpu, 0)
722         END OBJ(adt746xfan, 0)
723 #endif /* !__OpenBSD__ */
724 #if (defined(__FreeBSD__) || defined(__FreeBSD_kernel__) \
725                 || defined(__OpenBSD__)) && (defined(i386) || defined(__i386__))
726         END OBJ(apm_adapter, 0)
727         END OBJ(apm_battery_life, 0)
728         END OBJ(apm_battery_time, 0)
729 #endif /* __FreeBSD__ */
730         END OBJ(imap_unseen, 0)
731                 parse_imap_mail_args(obj, arg);
732         END OBJ(imap_messages, 0)
733                 parse_imap_mail_args(obj, arg);
734         END OBJ(pop3_unseen, 0)
735                 parse_pop3_mail_args(obj, arg);
736         END OBJ(pop3_used, 0)
737                 parse_pop3_mail_args(obj, arg);
738 #ifdef IBM
739         END OBJ_ARG(smapi, 0, "smapi needs an argument")
740                 obj->data.s = strndup(arg, text_buffer_size);
741         END OBJ_IF_ARG(if_smapi_bat_installed, 0, "if_smapi_bat_installed needs an argument")
742                 obj->data.ifblock.s = strndup(arg, text_buffer_size);
743         END OBJ_ARG(smapi_bat_perc, 0, "smapi_bat_perc needs an argument")
744                 obj->data.s = strndup(arg, text_buffer_size);
745         END OBJ_ARG(smapi_bat_temp, 0, "smapi_bat_temp needs an argument")
746                 obj->data.s = strndup(arg, text_buffer_size);
747         END OBJ_ARG(smapi_bat_power, 0, "smapi_bat_power needs an argument")
748                 obj->data.s = strndup(arg, text_buffer_size);
749 #ifdef X11
750         END OBJ_ARG(smapi_bat_bar, 0, "smapi_bat_bar needs an argument")
751                 int cnt;
752                 if(sscanf(arg, "%i %n", &obj->data.i, &cnt) <= 0) {
753                         NORM_ERR("first argument to smapi_bat_bar must be an integer value");
754                         obj->data.i = -1;
755                 } else
756                         arg = scan_bar(obj, arg + cnt);
757 #endif /* X11 */
758 #endif /* IBM */
759 #ifdef MPD
760 #define mpd_set_maxlen(name) \
761                 if (arg) { \
762                         int i; \
763                         sscanf(arg, "%d", &i); \
764                         if (i > 0) \
765                                 obj->data.i = i + 1; \
766                         else \
767                                 NORM_ERR(#name ": invalid length argument"); \
768                 }
769         END OBJ(mpd_artist, &update_mpd)
770                 mpd_set_maxlen(mpd_artist);
771                 init_mpd();
772         END OBJ(mpd_title, &update_mpd)
773                 mpd_set_maxlen(mpd_title);
774                 init_mpd();
775         END OBJ(mpd_random, &update_mpd) init_mpd();
776         END OBJ(mpd_repeat, &update_mpd) init_mpd();
777         END OBJ(mpd_elapsed, &update_mpd) init_mpd();
778         END OBJ(mpd_length, &update_mpd) init_mpd();
779         END OBJ(mpd_track, &update_mpd)
780                 mpd_set_maxlen(mpd_track);
781                 init_mpd();
782         END OBJ(mpd_name, &update_mpd)
783                 mpd_set_maxlen(mpd_name);
784                 init_mpd();
785         END OBJ(mpd_file, &update_mpd)
786                 mpd_set_maxlen(mpd_file);
787                 init_mpd();
788         END OBJ(mpd_percent, &update_mpd) init_mpd();
789         END OBJ(mpd_album, &update_mpd)
790                 mpd_set_maxlen(mpd_album);
791                 init_mpd();
792         END OBJ(mpd_vol, &update_mpd) init_mpd();
793         END OBJ(mpd_bitrate, &update_mpd) init_mpd();
794         END OBJ(mpd_status, &update_mpd) init_mpd();
795         END OBJ(mpd_bar, &update_mpd)
796                 scan_bar(obj, arg);
797                 init_mpd();
798         END OBJ(mpd_smart, &update_mpd)
799                 mpd_set_maxlen(mpd_smart);
800                 init_mpd();
801         END OBJ_IF(if_mpd_playing, &update_mpd)
802                 init_mpd();
803 #undef mpd_set_maxlen
804 #endif /* MPD */
805 #ifdef MOC
806         END OBJ(moc_state, &update_moc)
807         END OBJ(moc_file, &update_moc)
808         END OBJ(moc_title, &update_moc)
809         END OBJ(moc_artist, &update_moc)
810         END OBJ(moc_song, &update_moc)
811         END OBJ(moc_album, &update_moc)
812         END OBJ(moc_totaltime, &update_moc)
813         END OBJ(moc_timeleft, &update_moc)
814         END OBJ(moc_curtime, &update_moc)
815         END OBJ(moc_bitrate, &update_moc)
816         END OBJ(moc_rate, &update_moc)
817 #endif /* MOC */
818 #ifdef XMMS2
819         END OBJ(xmms2_artist, &update_xmms2)
820         END OBJ(xmms2_album, &update_xmms2)
821         END OBJ(xmms2_title, &update_xmms2)
822         END OBJ(xmms2_genre, &update_xmms2)
823         END OBJ(xmms2_comment, &update_xmms2)
824         END OBJ(xmms2_url, &update_xmms2)
825         END OBJ(xmms2_tracknr, &update_xmms2)
826         END OBJ(xmms2_bitrate, &update_xmms2)
827         END OBJ(xmms2_date, &update_xmms2)
828         END OBJ(xmms2_id, &update_xmms2)
829         END OBJ(xmms2_duration, &update_xmms2)
830         END OBJ(xmms2_elapsed, &update_xmms2)
831         END OBJ(xmms2_size, &update_xmms2)
832         END OBJ(xmms2_status, &update_xmms2)
833         END OBJ(xmms2_percent, &update_xmms2)
834 #ifdef X11
835         END OBJ(xmms2_bar, &update_xmms2)
836                 scan_bar(obj, arg);
837 #endif /* X11 */
838         END OBJ(xmms2_smart, &update_xmms2)
839         END OBJ(xmms2_playlist, &update_xmms2)
840         END OBJ(xmms2_timesplayed, &update_xmms2)
841         END OBJ_IF(if_xmms2_connected, &update_xmms2)
842 #endif
843 #ifdef AUDACIOUS
844         END OBJ(audacious_status, &update_audacious)
845         END OBJ_ARG(audacious_title, &update_audacious, "audacious_title needs an argument")
846                 sscanf(arg, "%d", &info.audacious.max_title_len);
847                 if (info.audacious.max_title_len > 0) {
848                         info.audacious.max_title_len++;
849                 } else {
850                         CRIT_ERR(obj, free_at_crash, "audacious_title: invalid length argument");
851                 }
852         END OBJ(audacious_length, &update_audacious)
853         END OBJ(audacious_length_seconds, &update_audacious)
854         END OBJ(audacious_position, &update_audacious)
855         END OBJ(audacious_position_seconds, &update_audacious)
856         END OBJ(audacious_bitrate, &update_audacious)
857         END OBJ(audacious_frequency, &update_audacious)
858         END OBJ(audacious_channels, &update_audacious)
859         END OBJ(audacious_filename, &update_audacious)
860         END OBJ(audacious_playlist_length, &update_audacious)
861         END OBJ(audacious_playlist_position, &update_audacious)
862         END OBJ(audacious_main_volume, &update_audacious)
863 #ifdef X11
864         END OBJ(audacious_bar, &update_audacious)
865                 scan_bar(obj, arg);
866 #endif /* X11 */
867 #endif
868 #ifdef BMPX
869         END OBJ(bmpx_title, &update_bmpx)
870                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
871         END OBJ(bmpx_artist, &update_bmpx)
872                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
873         END OBJ(bmpx_album, &update_bmpx)
874                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
875         END OBJ(bmpx_track, &update_bmpx)
876                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
877         END OBJ(bmpx_uri, &update_bmpx)
878                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
879         END OBJ(bmpx_bitrate, &update_bmpx)
880                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
881 #endif
882 #ifdef EVE
883         END OBJ_ARG(eve, 0, "eve needs arguments: <userid> <apikey> <characterid>")
884                 scan_eve(obj, arg);
885 #endif
886 #ifdef HAVE_CURL
887         END OBJ_ARG(curl, 0, "curl needs arguments: <uri> <interval in minutes>")
888                 curl_parse_arg(obj, arg);
889 #endif
890 #ifdef RSS
891         END OBJ_ARG(rss, 0, "rss needs arguments: <uri> <interval in minutes> <action> [act_par] [spaces in front]")
892                 rss_scan_arg(obj, arg);
893 #endif
894 #ifdef WEATHER
895         END OBJ_ARG(weather, 0, "weather needs arguments: <uri> <locID> <data_type> [interval in minutes]")
896                 scan_weather_arg(obj, arg, free_at_crash);
897 #endif
898 #ifdef XOAP
899         END OBJ_ARG(weather_forecast, 0, "weather_forecast needs arguments: <uri> <locID> <day> <data_type> [interval in minutes]")
900                 scan_weather_forecast_arg(obj, arg, free_at_crash);
901 #endif
902 #ifdef HAVE_LUA
903         END OBJ_ARG(lua, 0, "lua needs arguments: <function name> [function parameters]")
904                 obj->data.s = strndup(arg, text_buffer_size);
905         END OBJ_ARG(lua_parse, 0, "lua_parse needs arguments: <function name> [function parameters]")
906                 obj->data.s = strndup(arg, text_buffer_size);
907         END OBJ_ARG(lua_bar, 0, "lua_bar needs arguments: <height>,<width> <function name> [function parameters]")
908                 arg = scan_bar(obj, arg);
909                 if(arg) {
910                         obj->data.s = strndup(arg, text_buffer_size);
911                 } else {
912                         CRIT_ERR(obj, free_at_crash, "lua_bar needs arguments: <height>,<width> <function name> [function parameters]");
913                 }
914 #ifdef X11
915         END OBJ_ARG(lua_graph, 0, "lua_graph needs arguments: <function name> [height],[width] [gradient colour 1] [gradient colour 2] [scale] [-t] [-l]")
916                 char *buf = 0;
917                 buf = scan_graph(obj, arg);
918                 if (buf) {
919                         obj->data.s = buf;
920                 } else {
921                         CRIT_ERR(obj, free_at_crash, "lua_graph needs arguments: <function name> [height],[width] [gradient colour 1] [gradient colour 2] [scale] [-t] [-l]");
922                 }
923         END OBJ_ARG(lua_gauge, 0, "lua_gauge needs arguments: <height>,<width> <function name> [function parameters]")
924                 arg = scan_gauge(obj, arg);
925                 if (arg) {
926                         obj->data.s = strndup(arg, text_buffer_size);
927                 } else {
928                         CRIT_ERR(obj, free_at_crash, "lua_gauge needs arguments: <height>,<width> <function name> [function parameters]");
929                 }
930 #endif /* X11 */
931 #endif /* HAVE_LUA */
932 #ifdef HDDTEMP
933         END OBJ(hddtemp, &update_hddtemp)
934                 if (arg)
935                         obj->data.s = strndup(arg, text_buffer_size);
936 #endif /* HDDTEMP */
937 #ifdef TCP_PORT_MONITOR
938         END OBJ_ARG(tcp_portmon, &tcp_portmon_update, "tcp_portmon: needs arguments")
939                 tcp_portmon_init(obj, arg);
940 #endif /* TCP_PORT_MONITOR */
941         END OBJ(entropy_avail, &update_entropy)
942         END OBJ(entropy_perc, &update_entropy)
943         END OBJ(entropy_poolsize, &update_entropy)
944         END OBJ(entropy_bar, &update_entropy)
945                 scan_bar(obj, arg);
946         END OBJ_ARG(include, 0, "include needs a argument")
947                 struct conftree *leaf = conftree_add(currentconffile, arg);
948                 if(leaf) {
949                         if (load_config_file(arg) == TRUE) {
950                                 obj->sub = malloc(sizeof(struct text_object));
951                                 currentconffile = leaf;
952                                 extract_variable_text_internal(obj->sub, get_global_text());
953                                 currentconffile = leaf->back;
954                         } else {
955                                 NORM_ERR("Can't load configfile '%s'.", arg);
956                         }
957                 } else {
958                         NORM_ERR("You are trying to load '%s' recursively, I'm only going to load it once to prevent an infinite loop.", arg);
959                 }
960         END OBJ_ARG(blink, 0, "blink needs a argument")
961                 obj->sub = malloc(sizeof(struct text_object));
962                 extract_variable_text_internal(obj->sub, arg);
963         END OBJ_ARG(to_bytes, 0, "to_bytes needs a argument")
964                 obj->sub = malloc(sizeof(struct text_object));
965                 extract_variable_text_internal(obj->sub, arg);
966         END OBJ(scroll, 0)
967                 parse_scroll_arg(obj, arg, free_at_crash);
968         END OBJ_ARG(combine, 0, "combine needs arguments: <text1> <text2>")
969                 parse_combine_arg(obj, arg, free_at_crash);
970 #ifdef NVIDIA
971         END OBJ_ARG(nvidia, 0, "nvidia needs an argument")
972                 if (set_nvidia_type(obj, arg)) {
973                         CRIT_ERR(obj, free_at_crash, "nvidia: invalid argument"
974                                  " specified: '%s'\n", arg);
975                 }
976 #endif /* NVIDIA */
977 #ifdef APCUPSD
978         END OBJ_ARG(apcupsd, &update_apcupsd, "apcupsd needs arguments: <host> <port>")
979                 char host[64];
980                 int port;
981                 if (sscanf(arg, "%63s %d", host, &port) != 2) {
982                         CRIT_ERR(obj, free_at_crash, "apcupsd needs arguments: <host> <port>");
983                 } else {
984                         info.apcupsd.port = htons(port);
985                         strncpy(info.apcupsd.host, host, sizeof(info.apcupsd.host));
986                 }
987         END OBJ(apcupsd_name, &update_apcupsd)
988         END OBJ(apcupsd_model, &update_apcupsd)
989         END OBJ(apcupsd_upsmode, &update_apcupsd)
990         END OBJ(apcupsd_cable, &update_apcupsd)
991         END OBJ(apcupsd_status, &update_apcupsd)
992         END OBJ(apcupsd_linev, &update_apcupsd)
993         END OBJ(apcupsd_load, &update_apcupsd)
994         END OBJ(apcupsd_loadbar, &update_apcupsd)
995                 scan_bar(obj, arg);
996 #ifdef X11
997         END OBJ(apcupsd_loadgraph, &update_apcupsd)
998                 char* buf = 0;
999                 buf = scan_graph(obj, arg);
1000                 if (buf) free(buf);
1001         END OBJ(apcupsd_loadgauge, &update_apcupsd)
1002                 scan_gauge(obj, arg);
1003 #endif /* X11 */
1004         END OBJ(apcupsd_charge, &update_apcupsd)
1005         END OBJ(apcupsd_timeleft, &update_apcupsd)
1006         END OBJ(apcupsd_temp, &update_apcupsd)
1007         END OBJ(apcupsd_lastxfer, &update_apcupsd)
1008 #endif /* APCUPSD */
1009         END {
1010                 char buf[256];
1011
1012                 NORM_ERR("unknown variable %s", s);
1013                 obj->type = OBJ_text;
1014                 snprintf(buf, 256, "${%s}", s);
1015                 obj->data.s = strndup(buf, text_buffer_size);
1016         }
1017 #undef OBJ
1018 #undef OBJ_IF
1019 #undef OBJ_ARG
1020 #undef OBJ_IF_ARG
1021 #undef __OBJ_HEAD
1022 #undef __OBJ_IF
1023 #undef __OBJ_ARG
1024 #undef END
1025
1026         return obj;
1027 }
1028
1029 /*
1030  * - assumes that *string is '#'
1031  * - removes the part from '#' to the end of line ('\n' or '\0')
1032  * - it removes the '\n'
1033  * - copies the last char into 'char *last' argument, which should be a pointer
1034  *   to a char rather than a string.
1035  */
1036 static size_t remove_comment(char *string, char *last)
1037 {
1038         char *end = string;
1039         while (*end != '\0' && *end != '\n') {
1040                 ++end;
1041         }
1042         if (last) *last = *end;
1043         if (*end == '\n') end++;
1044         strfold(string, end - string);
1045         return end - string;
1046 }
1047
1048 size_t remove_comments(char *string)
1049 {
1050         char *curplace;
1051         size_t folded = 0;
1052         for (curplace = string; *curplace != 0; curplace++) {
1053                 if (*curplace == '\\' && *(curplace + 1) == '#') {
1054                         // strcpy can't be used for overlapping strings
1055                         strfold(curplace, 1);
1056                         folded += 1;
1057                 } else if (*curplace == '#') {
1058                         folded += remove_comment(curplace, 0);
1059                 }
1060         }
1061         return folded;
1062 }
1063
1064 int extract_variable_text_internal(struct text_object *retval, const char *const_p)
1065 {
1066         struct text_object *obj;
1067         char *p, *s, *orig_p;
1068         long line;
1069         void *ifblock_opaque = NULL;
1070         char *tmp_p;
1071         char *arg = 0;
1072         size_t len = 0;
1073
1074         p = strndup(const_p, max_user_text - 1);
1075         while (text_contains_templates(p)) {
1076                 char *tmp;
1077                 tmp = find_and_replace_templates(p);
1078                 free(p);
1079                 p = tmp;
1080         }
1081         s = orig_p = p;
1082
1083         if (strcmp(p, const_p)) {
1084                 DBGP("replaced all templates in text: input is\n'%s'\noutput is\n'%s'", const_p, p);
1085         } else {
1086                 DBGP("no templates to replace");
1087         }
1088
1089         memset(retval, 0, sizeof(struct text_object));
1090
1091         line = global_text_lines;
1092
1093         while (*p) {
1094                 if (*p == '\n') {
1095                         line++;
1096                 }
1097                 if (*p == '$') {
1098                         *p = '\0';
1099                         obj = create_plain_text(s);
1100                         if (obj != NULL) {
1101                                 append_object(retval, obj);
1102                         }
1103                         *p = '$';
1104                         p++;
1105                         s = p;
1106
1107                         if (*p != '$') {
1108                                 char buf[256];
1109                                 const char *var;
1110
1111                                 /* variable is either $foo or ${foo} */
1112                                 if (*p == '{') {
1113                                         unsigned int brl = 1, brr = 0;
1114
1115                                         p++;
1116                                         s = p;
1117                                         while (*p && brl != brr) {
1118                                                 if (*p == '{') {
1119                                                         brl++;
1120                                                 }
1121                                                 if (*p == '}') {
1122                                                         brr++;
1123                                                 }
1124                                                 p++;
1125                                         }
1126                                         p--;
1127                                 } else {
1128                                         s = p;
1129                                         if (*p == '#') {
1130                                                 p++;
1131                                         }
1132                                         while (*p && (isalnum((int) *p) || *p == '_')) {
1133                                                 p++;
1134                                         }
1135                                 }
1136
1137                                 /* copy variable to buffer */
1138                                 len = (p - s > 255) ? 255 : (p - s);
1139                                 strncpy(buf, s, len);
1140                                 buf[len] = '\0';
1141
1142                                 if (*p == '}') {
1143                                         p++;
1144                                 }
1145                                 s = p;
1146
1147                                 /* search for variable in environment */
1148
1149                                 var = getenv(buf);
1150                                 if (var) {
1151                                         obj = create_plain_text(var);
1152                                         if (obj) {
1153                                                 append_object(retval, obj);
1154                                         }
1155                                         continue;
1156                                 }
1157
1158                                 /* if variable wasn't found in environment, use some special */
1159
1160                                 arg = 0;
1161
1162                                 /* split arg */
1163                                 if (strchr(buf, ' ')) {
1164                                         arg = strchr(buf, ' ');
1165                                         *arg = '\0';
1166                                         arg++;
1167                                         while (isspace((int) *arg)) {
1168                                                 arg++;
1169                                         }
1170                                         if (!*arg) {
1171                                                 arg = 0;
1172                                         }
1173                                 }
1174
1175                                 /* lowercase variable name */
1176                                 tmp_p = buf;
1177                                 while (*tmp_p) {
1178                                         *tmp_p = tolower(*tmp_p);
1179                                         tmp_p++;
1180                                 }
1181
1182                                 obj = construct_text_object(buf, arg,
1183                                                 line, &ifblock_opaque, orig_p);
1184                                 if (obj != NULL) {
1185                                         append_object(retval, obj);
1186                                 }
1187                                 continue;
1188                         } else {
1189                                 obj = create_plain_text("$");
1190                                 s = p + 1;
1191                                 if (obj != NULL) {
1192                                         append_object(retval, obj);
1193                                 }
1194                         }
1195                 } else if (*p == '\\' && *(p+1) == '#') {
1196                         strfold(p, 1);
1197                 } else if (*p == '#') {
1198                         char c;
1199                         if (remove_comment(p, &c) && p > orig_p && c == '\n') {
1200                                 /* if remove_comment removed a newline, we need to 'back up' with p */
1201                                 p--;
1202                         }
1203                 }
1204                 p++;
1205         }
1206         obj = create_plain_text(s);
1207         if (obj != NULL) {
1208                 append_object(retval, obj);
1209         }
1210
1211         if (!ifblock_stack_empty(&ifblock_opaque)) {
1212                 NORM_ERR("one or more $endif's are missing");
1213         }
1214
1215         free(orig_p);
1216         return 0;
1217 }
1218
1219 /*
1220  * Frees the list of text objects root points to.  When internal = 1, it won't
1221  * free global objects.
1222  */
1223 void free_text_objects(struct text_object *root, int internal)
1224 {
1225         struct text_object *obj;
1226
1227         if (!root->prev) {
1228                 return;
1229         }
1230
1231 #define data obj->data
1232         for (obj = root->prev; obj; obj = root->prev) {
1233                 root->prev = obj->prev;
1234                 switch (obj->type) {
1235 #ifndef __OpenBSD__
1236                         case OBJ_acpitemp:
1237                                 close(data.i);
1238                                 break;
1239 #endif /* !__OpenBSD__ */
1240 #ifdef __linux__
1241                         case OBJ_i2c:
1242                         case OBJ_platform:
1243                         case OBJ_hwmon:
1244                                 free_sysfs_sensor(obj);
1245                                 break;
1246 #endif /* __linux__ */
1247                         case OBJ_read_tcp:
1248                                 free_read_tcp(obj);
1249                                 break;
1250                         case OBJ_time:
1251                         case OBJ_utime:
1252                                 free_time(obj);
1253                                 break;
1254                         case OBJ_tztime:
1255                                 free_tztime(obj);
1256                                 break;
1257                         case OBJ_mboxscan:
1258                                 free_mboxscan(obj);
1259                                 break;
1260                         case OBJ_mails:
1261                         case OBJ_new_mails:
1262                         case OBJ_seen_mails:
1263                         case OBJ_unseen_mails:
1264                         case OBJ_flagged_mails:
1265                         case OBJ_unflagged_mails:
1266                         case OBJ_forwarded_mails:
1267                         case OBJ_unforwarded_mails:
1268                         case OBJ_replied_mails:
1269                         case OBJ_unreplied_mails:
1270                         case OBJ_draft_mails:
1271                         case OBJ_trashed_mails:
1272                                 free_local_mails(obj);
1273                                 break;
1274                         case OBJ_imap_unseen:
1275                         case OBJ_imap_messages:
1276                         case OBJ_pop3_unseen:
1277                         case OBJ_pop3_used:
1278                                 free_mail_obj(obj);
1279                                 break;
1280                         case OBJ_if_empty:
1281                         case OBJ_if_match:
1282                                 free_text_objects(obj->sub, 1);
1283                                 free(obj->sub);
1284                                 /* fall through */
1285                         case OBJ_if_existing:
1286                         case OBJ_if_mounted:
1287                         case OBJ_if_running:
1288                                 free(data.ifblock.s);
1289                                 free(data.ifblock.str);
1290                                 break;
1291                         case OBJ_head:
1292                         case OBJ_tail:
1293                                 free_tailhead(obj);
1294                                 break;
1295                         case OBJ_text:
1296                         case OBJ_font:
1297                         case OBJ_image:
1298                         case OBJ_eval:
1299                         case OBJ_exec:
1300                         case OBJ_execbar:
1301 #ifdef X11
1302                         case OBJ_execgauge:
1303                         case OBJ_execgraph:
1304 #endif
1305                         case OBJ_execp:
1306                                 free_exec(obj);
1307                                 break;
1308 #ifdef HAVE_ICONV
1309                         case OBJ_iconv_start:
1310                                 free_iconv();
1311                                 break;
1312 #endif
1313 #ifdef __linux__
1314                         case OBJ_disk_protect:
1315                                 free(data.s);
1316                                 break;
1317                         case OBJ_if_gw:
1318                                 free(data.ifblock.s);
1319                                 free(data.ifblock.str);
1320                         case OBJ_gw_iface:
1321                         case OBJ_gw_ip:
1322                                 free_gateway_info();
1323                                 break;
1324                         case OBJ_ioscheduler:
1325                                 if(data.s)
1326                                         free(data.s);
1327                                 break;
1328 #endif
1329 #if (defined(__FreeBSD__) || defined(__linux__))
1330                         case OBJ_if_up:
1331                                 free_if_up(obj);
1332                                 break;
1333 #endif
1334 #ifdef XMMS2
1335                         case OBJ_xmms2_artist:
1336                                 if (info.xmms2.artist) {
1337                                         free(info.xmms2.artist);
1338                                         info.xmms2.artist = 0;
1339                                 }
1340                                 break;
1341                         case OBJ_xmms2_album:
1342                                 if (info.xmms2.album) {
1343                                         free(info.xmms2.album);
1344                                         info.xmms2.album = 0;
1345                                 }
1346                                 break;
1347                         case OBJ_xmms2_title:
1348                                 if (info.xmms2.title) {
1349                                         free(info.xmms2.title);
1350                                         info.xmms2.title = 0;
1351                                 }
1352                                 break;
1353                         case OBJ_xmms2_genre:
1354                                 if (info.xmms2.genre) {
1355                                         free(info.xmms2.genre);
1356                                         info.xmms2.genre = 0;
1357                                 }
1358                                 break;
1359                         case OBJ_xmms2_comment:
1360                                 if (info.xmms2.comment) {
1361                                         free(info.xmms2.comment);
1362                                         info.xmms2.comment = 0;
1363                                 }
1364                                 break;
1365                         case OBJ_xmms2_url:
1366                                 if (info.xmms2.url) {
1367                                         free(info.xmms2.url);
1368                                         info.xmms2.url = 0;
1369                                 }
1370                                 break;
1371                         case OBJ_xmms2_date:
1372                                 if (info.xmms2.date) {
1373                                         free(info.xmms2.date);
1374                                         info.xmms2.date = 0;
1375                                 }
1376                                 break;
1377                         case OBJ_xmms2_status:
1378                                 if (info.xmms2.status) {
1379                                         free(info.xmms2.status);
1380                                         info.xmms2.status = 0;
1381                                 }
1382                                 break;
1383                         case OBJ_xmms2_playlist:
1384                                 if (info.xmms2.playlist) {
1385                                         free(info.xmms2.playlist);
1386                                         info.xmms2.playlist = 0;
1387                                 }
1388                                 break;
1389                         case OBJ_xmms2_smart:
1390                                 if (info.xmms2.artist) {
1391                                         free(info.xmms2.artist);
1392                                         info.xmms2.artist = 0;
1393                                 }
1394                                 if (info.xmms2.title) {
1395                                         free(info.xmms2.title);
1396                                         info.xmms2.title = 0;
1397                                 }
1398                                 if (info.xmms2.url) {
1399                                         free(info.xmms2.url);
1400                                         info.xmms2.url = 0;
1401                                 }
1402                                 break;
1403 #endif
1404 #ifdef BMPX
1405                         case OBJ_bmpx_title:
1406                         case OBJ_bmpx_artist:
1407                         case OBJ_bmpx_album:
1408                         case OBJ_bmpx_track:
1409                         case OBJ_bmpx_uri:
1410                         case OBJ_bmpx_bitrate:
1411                                 break;
1412 #endif
1413 #ifdef EVE
1414                         case OBJ_eve:
1415                                 free_eve(obj);
1416                                 break;
1417 #endif
1418 #ifdef HAVE_CURL
1419                         case OBJ_curl:
1420                                 curl_obj_free(obj);
1421                                 break;
1422 #endif
1423 #ifdef RSS
1424                         case OBJ_rss:
1425                                 rss_free_obj_info(obj);
1426                                 break;
1427 #endif
1428 #ifdef WEATHER
1429                         case OBJ_weather:
1430                                 free_weather(obj);
1431                                 break;
1432 #endif
1433 #ifdef XOAP
1434                         case OBJ_weather_forecast:
1435                                 free_weather(obj);
1436                                 break;
1437 #endif
1438 #ifdef HAVE_LUA
1439                         case OBJ_lua:
1440                         case OBJ_lua_parse:
1441                         case OBJ_lua_bar:
1442 #ifdef X11
1443                         case OBJ_lua_graph:
1444                         case OBJ_lua_gauge:
1445 #endif /* X11 */
1446                                 free(data.s);
1447                                 break;
1448 #endif /* HAVE_LUA */
1449                         case OBJ_pre_exec:
1450                                 break;
1451 #ifndef __OpenBSD__
1452                         case OBJ_battery:
1453                                 free(data.s);
1454                                 break;
1455                         case OBJ_battery_short:
1456                                 free(data.s);
1457                                 break;
1458                         case OBJ_battery_time:
1459                                 free(data.s);
1460                                 break;
1461 #endif /* !__OpenBSD__ */
1462                         case OBJ_execpi:
1463                         case OBJ_execi:
1464                         case OBJ_execibar:
1465                         case OBJ_texeci:
1466 #ifdef X11
1467                         case OBJ_execigraph:
1468                         case OBJ_execigauge:
1469 #endif /* X11 */
1470                                 free_execi(obj);
1471                                 break;
1472                         case OBJ_nameserver:
1473                                 free_dns_data();
1474                                 break;
1475                         case OBJ_top:
1476                         case OBJ_top_mem:
1477                         case OBJ_top_time:
1478 #ifdef IOSTATS
1479                         case OBJ_top_io:
1480 #endif
1481                                 free_top(obj, internal);
1482                                 break;
1483 #ifdef HDDTEMP
1484                         case OBJ_hddtemp:
1485                                 if (data.s) {
1486                                         free(data.s);
1487                                         data.s = NULL;
1488                                 }
1489                                 free_hddtemp();
1490                                 break;
1491 #endif /* HDDTEMP */
1492                         case OBJ_entropy_avail:
1493                         case OBJ_entropy_perc:
1494                         case OBJ_entropy_poolsize:
1495                         case OBJ_entropy_bar:
1496                                 break;
1497                         case OBJ_user_names:
1498                                 if (info.users.names) {
1499                                         free(info.users.names);
1500                                         info.users.names = 0;
1501                                 }
1502                                 break;
1503                         case OBJ_user_terms:
1504                                 if (info.users.terms) {
1505                                         free(info.users.terms);
1506                                         info.users.terms = 0;
1507                                 }
1508                                 break;
1509                         case OBJ_user_times:
1510                                 if (info.users.times) {
1511                                         free(info.users.times);
1512                                         info.users.times = 0;
1513                                 }
1514                                 break;
1515 #ifdef IBM
1516                         case OBJ_smapi:
1517                         case OBJ_smapi_bat_perc:
1518                         case OBJ_smapi_bat_temp:
1519                         case OBJ_smapi_bat_power:
1520                                 free(data.s);
1521                                 break;
1522                         case OBJ_if_smapi_bat_installed:
1523                                 free(data.ifblock.s);
1524                                 free(data.ifblock.str);
1525                                 break;
1526 #endif /* IBM */
1527 #ifdef NVIDIA
1528                         case OBJ_nvidia:
1529                                 free_nvidia(obj);
1530                                 break;
1531 #endif /* NVIDIA */
1532 #ifdef MPD
1533                         case OBJ_mpd_title:
1534                         case OBJ_mpd_artist:
1535                         case OBJ_mpd_album:
1536                         case OBJ_mpd_random:
1537                         case OBJ_mpd_repeat:
1538                         case OBJ_mpd_vol:
1539                         case OBJ_mpd_bitrate:
1540                         case OBJ_mpd_status:
1541                         case OBJ_mpd_bar:
1542                         case OBJ_mpd_elapsed:
1543                         case OBJ_mpd_length:
1544                         case OBJ_mpd_track:
1545                         case OBJ_mpd_name:
1546                         case OBJ_mpd_file:
1547                         case OBJ_mpd_percent:
1548                         case OBJ_mpd_smart:
1549                         case OBJ_if_mpd_playing:
1550                                 free_mpd();
1551                                 break;
1552 #endif /* MPD */
1553 #ifdef MOC
1554                         case OBJ_moc_state:
1555                         case OBJ_moc_file:
1556                         case OBJ_moc_title:
1557                         case OBJ_moc_artist:
1558                         case OBJ_moc_song:
1559                         case OBJ_moc_album:
1560                         case OBJ_moc_totaltime:
1561                         case OBJ_moc_timeleft:
1562                         case OBJ_moc_curtime:
1563                         case OBJ_moc_bitrate:
1564                         case OBJ_moc_rate:
1565                                 free_moc();
1566                                 break;
1567 #endif /* MOC */
1568                         case OBJ_include:
1569                         case OBJ_blink:
1570                         case OBJ_to_bytes:
1571                                 if(obj->sub) {
1572                                         free_text_objects(obj->sub, 1);
1573                                         free(obj->sub);
1574                                 }
1575                                 break;
1576                         case OBJ_scroll:
1577                                 free_scroll(obj);
1578                                 break;
1579                         case OBJ_combine:
1580                                 free_combine(obj);
1581                                 break;
1582 #ifdef APCUPSD
1583                         case OBJ_apcupsd:
1584                         case OBJ_apcupsd_name:
1585                         case OBJ_apcupsd_model:
1586                         case OBJ_apcupsd_upsmode:
1587                         case OBJ_apcupsd_cable:
1588                         case OBJ_apcupsd_status:
1589                         case OBJ_apcupsd_linev:
1590                         case OBJ_apcupsd_load:
1591                         case OBJ_apcupsd_loadbar:
1592 #ifdef X11
1593                         case OBJ_apcupsd_loadgraph:
1594                         case OBJ_apcupsd_loadgauge:
1595 #endif /* X11 */
1596                         case OBJ_apcupsd_charge:
1597                         case OBJ_apcupsd_timeleft:
1598                         case OBJ_apcupsd_temp:
1599                         case OBJ_apcupsd_lastxfer:
1600                                 break;
1601 #endif /* APCUPSD */
1602 #ifdef TCP_PORT_MONITOR
1603                         case OBJ_tcp_portmon:
1604                                 tcp_portmon_free(obj);
1605                                 break;
1606 #endif /* TCP_PORT_MONITOR */
1607 #ifdef X11
1608                         case OBJ_desktop:
1609                         case OBJ_desktop_number:
1610                         case OBJ_desktop_name:
1611                                 if(info.x11.desktop.name && !internal) {
1612                                   free(info.x11.desktop.name);
1613                                   info.x11.desktop.name = NULL;
1614                                 }
1615                                 if(info.x11.desktop.all_names && !internal) {
1616                                   free(info.x11.desktop.all_names);
1617                                   info.x11.desktop.all_names = NULL;
1618                                 }
1619                                 break;
1620 #endif /* X11 */
1621                 }
1622                 free(obj);
1623         }
1624 #undef data
1625 }
1626