if_gw: no need to free unused obj->data.s
[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->sub = malloc(sizeof(struct text_object));
555                 extract_variable_text_internal(obj->sub, arg);
556         END OBJ_IF_ARG(if_match, 0, "if_match needs arguments")
557                 obj->sub = malloc(sizeof(struct text_object));
558                 extract_variable_text_internal(obj->sub, arg);
559         END OBJ_IF_ARG(if_existing, 0, "if_existing needs an argument or two")
560                 obj->data.s = strndup(arg, text_buffer_size);
561         END OBJ_IF_ARG(if_mounted, 0, "if_mounted needs an argument")
562                 obj->data.s = strndup(arg, text_buffer_size);
563 #ifdef __linux__
564         END OBJ_IF_ARG(if_running, &update_top, "if_running needs an argument")
565                 top_running = 1;
566                 obj->data.s = strndup(arg, text_buffer_size);
567 #else
568         END OBJ_IF_ARG(if_running, 0, "if_running needs an argument")
569                 char buf[256];
570
571                 snprintf(buf, 256, "pidof %s >/dev/null", arg);
572                 obj->data.s = strndup(buf, text_buffer_size);
573 #endif
574         END OBJ(kernel, 0)
575         END OBJ(machine, 0)
576         END OBJ(mails, 0)
577                 parse_local_mail_args(obj, arg);
578         END OBJ(new_mails, 0)
579                 parse_local_mail_args(obj, arg);
580         END OBJ(seen_mails, 0)
581                 parse_local_mail_args(obj, arg);
582         END OBJ(unseen_mails, 0)
583                 parse_local_mail_args(obj, arg);
584         END OBJ(flagged_mails, 0)
585                 parse_local_mail_args(obj, arg);
586         END OBJ(unflagged_mails, 0)
587                 parse_local_mail_args(obj, arg);
588         END OBJ(forwarded_mails, 0)
589                 parse_local_mail_args(obj, arg);
590         END OBJ(unforwarded_mails, 0)
591                 parse_local_mail_args(obj, arg);
592         END OBJ(replied_mails, 0)
593                 parse_local_mail_args(obj, arg);
594         END OBJ(unreplied_mails, 0)
595                 parse_local_mail_args(obj, arg);
596         END OBJ(draft_mails, 0)
597                 parse_local_mail_args(obj, arg);
598         END OBJ(trashed_mails, 0)
599                 parse_local_mail_args(obj, arg);
600         END OBJ(mboxscan, 0)
601                 parse_mboxscan_arg(obj, arg);
602         END OBJ(mem, &update_meminfo)
603         END OBJ(memeasyfree, &update_meminfo)
604         END OBJ(memfree, &update_meminfo)
605         END OBJ(memmax, &update_meminfo)
606         END OBJ(memperc, &update_meminfo)
607 #ifdef X11
608         END OBJ(memgauge, &update_meminfo)
609                 scan_gauge(obj, arg);
610 #endif /* X11*/
611         END OBJ(membar, &update_meminfo)
612                 scan_bar(obj, arg);
613 #ifdef X11
614         END OBJ(memgraph, &update_meminfo)
615                 char *buf = 0;
616                 buf = scan_graph(obj, arg);
617
618                 if (buf) free(buf);
619 #endif /* X11*/
620         END OBJ(mixer, 0)
621                 parse_mixer_arg(obj, arg);
622         END OBJ(mixerl, 0)
623                 parse_mixer_arg(obj, arg);
624         END OBJ(mixerr, 0)
625                 parse_mixer_arg(obj, arg);
626 #ifdef X11
627         END OBJ(mixerbar, 0)
628                 scan_mixer_bar(obj, arg);
629         END OBJ(mixerlbar, 0)
630                 scan_mixer_bar(obj, arg);
631         END OBJ(mixerrbar, 0)
632                 scan_mixer_bar(obj, arg);
633 #endif
634         END OBJ_IF(if_mixer_mute, 0)
635                 parse_mixer_arg(obj, arg);
636 #ifdef X11
637         END OBJ(monitor, &update_x11info)
638         END OBJ(monitor_number, &update_x11info)
639         END OBJ(desktop, &update_x11info)
640         END OBJ(desktop_number, &update_x11info)
641         END OBJ(desktop_name, &update_x11info)
642 #endif
643         END OBJ(nodename, 0)
644         END OBJ(processes, &update_total_processes)
645         END OBJ(running_processes, &update_running_processes)
646         END OBJ(shadecolor, 0)
647 #ifdef X11
648                 obj->data.l = arg ? get_x11_color(arg) : default_bg_color;
649 #endif /* X11 */
650         END OBJ(outlinecolor, 0)
651 #ifdef X11
652                 obj->data.l = arg ? get_x11_color(arg) : default_out_color;
653 #endif /* X11 */
654         END OBJ(stippled_hr, 0)
655 #ifdef X11
656                 scan_stippled_hr(obj, arg);
657 #endif /* X11 */
658         END OBJ(swap, &update_meminfo)
659         END OBJ(swapfree, &update_meminfo)
660         END OBJ(swapmax, &update_meminfo)
661         END OBJ(swapperc, &update_meminfo)
662         END OBJ(swapbar, &update_meminfo)
663                 scan_bar(obj, arg);
664         END OBJ(sysname, 0)
665         END OBJ(time, 0)
666                 scan_time(obj, arg);
667         END OBJ(utime, 0)
668                 scan_time(obj, arg);
669         END OBJ(tztime, 0)
670                 scan_tztime(obj, arg);
671 #ifdef HAVE_ICONV
672         END OBJ_ARG(iconv_start, 0, "Iconv requires arguments")
673                 init_iconv_start(obj, free_at_crash, arg);
674         END OBJ(iconv_stop, 0)
675                 init_iconv_stop();
676 #endif
677         END OBJ(totaldown, &update_net_stats)
678                 parse_net_stat_arg(obj, arg, free_at_crash);
679         END OBJ(totalup, &update_net_stats)
680                 parse_net_stat_arg(obj, arg, free_at_crash);
681         END OBJ(updates, 0)
682         END OBJ_IF(if_updatenr, 0)
683                 obj->data.i = arg ? atoi(arg) : 0;
684                 if(obj->data.i == 0) CRIT_ERR(obj, free_at_crash, "if_updatenr needs a number above 0 as argument");
685                 set_updatereset(obj->data.i > get_updatereset() ? obj->data.i : get_updatereset());
686         END OBJ(alignr, 0)
687                 obj->data.i = arg ? atoi(arg) : 0;
688         END OBJ(alignc, 0)
689                 obj->data.i = arg ? atoi(arg) : 0;
690         END OBJ(upspeed, &update_net_stats)
691                 parse_net_stat_arg(obj, arg, free_at_crash);
692         END OBJ(upspeedf, &update_net_stats)
693                 parse_net_stat_arg(obj, arg, free_at_crash);
694 #ifdef X11
695         END OBJ(upspeedgraph, &update_net_stats)
696                 parse_net_stat_graph_arg(obj, arg, free_at_crash);
697 #endif
698         END OBJ(uptime_short, &update_uptime)
699         END OBJ(uptime, &update_uptime)
700         END OBJ(user_names, &update_users)
701         END OBJ(user_times, &update_users)
702         END OBJ(user_terms, &update_users)
703         END OBJ(user_number, &update_users)
704 #if defined(__linux__)
705         END OBJ(gw_iface, &update_gateway_info)
706         END OBJ(gw_ip, &update_gateway_info)
707 #endif /* !__linux__ */
708 #ifndef __OpenBSD__
709         END OBJ(adt746xcpu, 0)
710         END OBJ(adt746xfan, 0)
711 #endif /* !__OpenBSD__ */
712 #if (defined(__FreeBSD__) || defined(__FreeBSD_kernel__) \
713                 || defined(__OpenBSD__)) && (defined(i386) || defined(__i386__))
714         END OBJ(apm_adapter, 0)
715         END OBJ(apm_battery_life, 0)
716         END OBJ(apm_battery_time, 0)
717 #endif /* __FreeBSD__ */
718         END OBJ(imap_unseen, 0)
719                 parse_imap_mail_args(obj, arg);
720         END OBJ(imap_messages, 0)
721                 parse_imap_mail_args(obj, arg);
722         END OBJ(pop3_unseen, 0)
723                 parse_pop3_mail_args(obj, arg);
724         END OBJ(pop3_used, 0)
725                 parse_pop3_mail_args(obj, arg);
726 #ifdef IBM
727         END OBJ_ARG(smapi, 0, "smapi needs an argument")
728                 obj->data.s = strndup(arg, text_buffer_size);
729         END OBJ_IF_ARG(if_smapi_bat_installed, 0, "if_smapi_bat_installed needs an argument")
730                 obj->data.s = strndup(arg, text_buffer_size);
731         END OBJ_ARG(smapi_bat_perc, 0, "smapi_bat_perc needs an argument")
732                 obj->data.s = strndup(arg, text_buffer_size);
733         END OBJ_ARG(smapi_bat_temp, 0, "smapi_bat_temp needs an argument")
734                 obj->data.s = strndup(arg, text_buffer_size);
735         END OBJ_ARG(smapi_bat_power, 0, "smapi_bat_power needs an argument")
736                 obj->data.s = strndup(arg, text_buffer_size);
737 #ifdef X11
738         END OBJ_ARG(smapi_bat_bar, 0, "smapi_bat_bar needs an argument")
739                 int cnt;
740                 if(sscanf(arg, "%i %n", &obj->data.i, &cnt) <= 0) {
741                         NORM_ERR("first argument to smapi_bat_bar must be an integer value");
742                         obj->data.i = -1;
743                 } else
744                         arg = scan_bar(obj, arg + cnt);
745 #endif /* X11 */
746 #endif /* IBM */
747 #ifdef MPD
748 #define mpd_set_maxlen(name) \
749                 if (arg) { \
750                         int i; \
751                         sscanf(arg, "%d", &i); \
752                         if (i > 0) \
753                                 obj->data.i = i + 1; \
754                         else \
755                                 NORM_ERR(#name ": invalid length argument"); \
756                 }
757         END OBJ(mpd_artist, &update_mpd)
758                 mpd_set_maxlen(mpd_artist);
759                 init_mpd();
760         END OBJ(mpd_title, &update_mpd)
761                 mpd_set_maxlen(mpd_title);
762                 init_mpd();
763         END OBJ(mpd_random, &update_mpd) init_mpd();
764         END OBJ(mpd_repeat, &update_mpd) init_mpd();
765         END OBJ(mpd_elapsed, &update_mpd) init_mpd();
766         END OBJ(mpd_length, &update_mpd) init_mpd();
767         END OBJ(mpd_track, &update_mpd)
768                 mpd_set_maxlen(mpd_track);
769                 init_mpd();
770         END OBJ(mpd_name, &update_mpd)
771                 mpd_set_maxlen(mpd_name);
772                 init_mpd();
773         END OBJ(mpd_file, &update_mpd)
774                 mpd_set_maxlen(mpd_file);
775                 init_mpd();
776         END OBJ(mpd_percent, &update_mpd) init_mpd();
777         END OBJ(mpd_album, &update_mpd)
778                 mpd_set_maxlen(mpd_album);
779                 init_mpd();
780         END OBJ(mpd_vol, &update_mpd) init_mpd();
781         END OBJ(mpd_bitrate, &update_mpd) init_mpd();
782         END OBJ(mpd_status, &update_mpd) init_mpd();
783         END OBJ(mpd_bar, &update_mpd)
784                 scan_bar(obj, arg);
785                 init_mpd();
786         END OBJ(mpd_smart, &update_mpd)
787                 mpd_set_maxlen(mpd_smart);
788                 init_mpd();
789         END OBJ_IF(if_mpd_playing, &update_mpd)
790                 init_mpd();
791 #undef mpd_set_maxlen
792 #endif /* MPD */
793 #ifdef MOC
794         END OBJ(moc_state, &update_moc)
795         END OBJ(moc_file, &update_moc)
796         END OBJ(moc_title, &update_moc)
797         END OBJ(moc_artist, &update_moc)
798         END OBJ(moc_song, &update_moc)
799         END OBJ(moc_album, &update_moc)
800         END OBJ(moc_totaltime, &update_moc)
801         END OBJ(moc_timeleft, &update_moc)
802         END OBJ(moc_curtime, &update_moc)
803         END OBJ(moc_bitrate, &update_moc)
804         END OBJ(moc_rate, &update_moc)
805 #endif /* MOC */
806 #ifdef XMMS2
807         END OBJ(xmms2_artist, &update_xmms2)
808         END OBJ(xmms2_album, &update_xmms2)
809         END OBJ(xmms2_title, &update_xmms2)
810         END OBJ(xmms2_genre, &update_xmms2)
811         END OBJ(xmms2_comment, &update_xmms2)
812         END OBJ(xmms2_url, &update_xmms2)
813         END OBJ(xmms2_tracknr, &update_xmms2)
814         END OBJ(xmms2_bitrate, &update_xmms2)
815         END OBJ(xmms2_date, &update_xmms2)
816         END OBJ(xmms2_id, &update_xmms2)
817         END OBJ(xmms2_duration, &update_xmms2)
818         END OBJ(xmms2_elapsed, &update_xmms2)
819         END OBJ(xmms2_size, &update_xmms2)
820         END OBJ(xmms2_status, &update_xmms2)
821         END OBJ(xmms2_percent, &update_xmms2)
822 #ifdef X11
823         END OBJ(xmms2_bar, &update_xmms2)
824                 scan_bar(obj, arg);
825 #endif /* X11 */
826         END OBJ(xmms2_smart, &update_xmms2)
827         END OBJ(xmms2_playlist, &update_xmms2)
828         END OBJ(xmms2_timesplayed, &update_xmms2)
829         END OBJ_IF(if_xmms2_connected, &update_xmms2)
830 #endif
831 #ifdef AUDACIOUS
832         END OBJ(audacious_status, &update_audacious)
833         END OBJ_ARG(audacious_title, &update_audacious, "audacious_title needs an argument")
834                 sscanf(arg, "%d", &info.audacious.max_title_len);
835                 if (info.audacious.max_title_len > 0) {
836                         info.audacious.max_title_len++;
837                 } else {
838                         CRIT_ERR(obj, free_at_crash, "audacious_title: invalid length argument");
839                 }
840         END OBJ(audacious_length, &update_audacious)
841         END OBJ(audacious_length_seconds, &update_audacious)
842         END OBJ(audacious_position, &update_audacious)
843         END OBJ(audacious_position_seconds, &update_audacious)
844         END OBJ(audacious_bitrate, &update_audacious)
845         END OBJ(audacious_frequency, &update_audacious)
846         END OBJ(audacious_channels, &update_audacious)
847         END OBJ(audacious_filename, &update_audacious)
848         END OBJ(audacious_playlist_length, &update_audacious)
849         END OBJ(audacious_playlist_position, &update_audacious)
850         END OBJ(audacious_main_volume, &update_audacious)
851 #ifdef X11
852         END OBJ(audacious_bar, &update_audacious)
853                 scan_bar(obj, arg);
854 #endif /* X11 */
855 #endif
856 #ifdef BMPX
857         END OBJ(bmpx_title, &update_bmpx)
858                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
859         END OBJ(bmpx_artist, &update_bmpx)
860                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
861         END OBJ(bmpx_album, &update_bmpx)
862                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
863         END OBJ(bmpx_track, &update_bmpx)
864                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
865         END OBJ(bmpx_uri, &update_bmpx)
866                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
867         END OBJ(bmpx_bitrate, &update_bmpx)
868                 memset(&(info.bmpx), 0, sizeof(struct bmpx_s));
869 #endif
870 #ifdef EVE
871         END OBJ_ARG(eve, 0, "eve needs arguments: <userid> <apikey> <characterid>")
872                 scan_eve(obj, arg);
873 #endif
874 #ifdef HAVE_CURL
875         END OBJ_ARG(curl, 0, "curl needs arguments: <uri> <interval in minutes>")
876                 curl_parse_arg(obj, arg);
877 #endif
878 #ifdef RSS
879         END OBJ_ARG(rss, 0, "rss needs arguments: <uri> <interval in minutes> <action> [act_par] [spaces in front]")
880                 rss_scan_arg(obj, arg);
881 #endif
882 #ifdef WEATHER
883         END OBJ_ARG(weather, 0, "weather needs arguments: <uri> <locID> <data_type> [interval in minutes]")
884                 scan_weather_arg(obj, arg, free_at_crash);
885 #endif
886 #ifdef XOAP
887         END OBJ_ARG(weather_forecast, 0, "weather_forecast needs arguments: <uri> <locID> <day> <data_type> [interval in minutes]")
888                 scan_weather_forecast_arg(obj, arg, free_at_crash);
889 #endif
890 #ifdef HAVE_LUA
891         END OBJ_ARG(lua, 0, "lua needs arguments: <function name> [function parameters]")
892                 obj->data.s = strndup(arg, text_buffer_size);
893         END OBJ_ARG(lua_parse, 0, "lua_parse needs arguments: <function name> [function parameters]")
894                 obj->data.s = strndup(arg, text_buffer_size);
895         END OBJ_ARG(lua_bar, 0, "lua_bar needs arguments: <height>,<width> <function name> [function parameters]")
896                 arg = scan_bar(obj, arg);
897                 if(arg) {
898                         obj->data.s = strndup(arg, text_buffer_size);
899                 } else {
900                         CRIT_ERR(obj, free_at_crash, "lua_bar needs arguments: <height>,<width> <function name> [function parameters]");
901                 }
902 #ifdef X11
903         END OBJ_ARG(lua_graph, 0, "lua_graph needs arguments: <function name> [height],[width] [gradient colour 1] [gradient colour 2] [scale] [-t] [-l]")
904                 char *buf = 0;
905                 buf = scan_graph(obj, arg);
906                 if (buf) {
907                         obj->data.s = buf;
908                 } else {
909                         CRIT_ERR(obj, free_at_crash, "lua_graph needs arguments: <function name> [height],[width] [gradient colour 1] [gradient colour 2] [scale] [-t] [-l]");
910                 }
911         END OBJ_ARG(lua_gauge, 0, "lua_gauge needs arguments: <height>,<width> <function name> [function parameters]")
912                 arg = scan_gauge(obj, arg);
913                 if (arg) {
914                         obj->data.s = strndup(arg, text_buffer_size);
915                 } else {
916                         CRIT_ERR(obj, free_at_crash, "lua_gauge needs arguments: <height>,<width> <function name> [function parameters]");
917                 }
918 #endif /* X11 */
919 #endif /* HAVE_LUA */
920 #ifdef HDDTEMP
921         END OBJ(hddtemp, &update_hddtemp)
922                 if (arg)
923                         obj->data.s = strndup(arg, text_buffer_size);
924 #endif /* HDDTEMP */
925 #ifdef TCP_PORT_MONITOR
926         END OBJ_ARG(tcp_portmon, &tcp_portmon_update, "tcp_portmon: needs arguments")
927                 tcp_portmon_init(obj, arg);
928 #endif /* TCP_PORT_MONITOR */
929         END OBJ(entropy_avail, &update_entropy)
930         END OBJ(entropy_perc, &update_entropy)
931         END OBJ(entropy_poolsize, &update_entropy)
932         END OBJ(entropy_bar, &update_entropy)
933                 scan_bar(obj, arg);
934         END OBJ_ARG(include, 0, "include needs a argument")
935                 struct conftree *leaf = conftree_add(currentconffile, arg);
936                 if(leaf) {
937                         if (load_config_file(arg) == TRUE) {
938                                 obj->sub = malloc(sizeof(struct text_object));
939                                 currentconffile = leaf;
940                                 extract_variable_text_internal(obj->sub, get_global_text());
941                                 currentconffile = leaf->back;
942                         } else {
943                                 NORM_ERR("Can't load configfile '%s'.", arg);
944                         }
945                 } else {
946                         NORM_ERR("You are trying to load '%s' recursively, I'm only going to load it once to prevent an infinite loop.", arg);
947                 }
948         END OBJ_ARG(blink, 0, "blink needs a argument")
949                 obj->sub = malloc(sizeof(struct text_object));
950                 extract_variable_text_internal(obj->sub, arg);
951         END OBJ_ARG(to_bytes, 0, "to_bytes needs a argument")
952                 obj->sub = malloc(sizeof(struct text_object));
953                 extract_variable_text_internal(obj->sub, arg);
954         END OBJ(scroll, 0)
955                 parse_scroll_arg(obj, arg, free_at_crash);
956         END OBJ_ARG(combine, 0, "combine needs arguments: <text1> <text2>")
957                 parse_combine_arg(obj, arg, free_at_crash);
958 #ifdef NVIDIA
959         END OBJ_ARG(nvidia, 0, "nvidia needs an argument")
960                 if (set_nvidia_type(obj, arg)) {
961                         CRIT_ERR(obj, free_at_crash, "nvidia: invalid argument"
962                                  " specified: '%s'\n", arg);
963                 }
964 #endif /* NVIDIA */
965 #ifdef APCUPSD
966         END OBJ_ARG(apcupsd, &update_apcupsd, "apcupsd needs arguments: <host> <port>")
967                 char host[64];
968                 int port;
969                 if (sscanf(arg, "%63s %d", host, &port) != 2) {
970                         CRIT_ERR(obj, free_at_crash, "apcupsd needs arguments: <host> <port>");
971                 } else {
972                         info.apcupsd.port = htons(port);
973                         strncpy(info.apcupsd.host, host, sizeof(info.apcupsd.host));
974                 }
975         END OBJ(apcupsd_name, &update_apcupsd)
976         END OBJ(apcupsd_model, &update_apcupsd)
977         END OBJ(apcupsd_upsmode, &update_apcupsd)
978         END OBJ(apcupsd_cable, &update_apcupsd)
979         END OBJ(apcupsd_status, &update_apcupsd)
980         END OBJ(apcupsd_linev, &update_apcupsd)
981         END OBJ(apcupsd_load, &update_apcupsd)
982         END OBJ(apcupsd_loadbar, &update_apcupsd)
983                 scan_bar(obj, arg);
984 #ifdef X11
985         END OBJ(apcupsd_loadgraph, &update_apcupsd)
986                 char* buf = 0;
987                 buf = scan_graph(obj, arg);
988                 if (buf) free(buf);
989         END OBJ(apcupsd_loadgauge, &update_apcupsd)
990                 scan_gauge(obj, arg);
991 #endif /* X11 */
992         END OBJ(apcupsd_charge, &update_apcupsd)
993         END OBJ(apcupsd_timeleft, &update_apcupsd)
994         END OBJ(apcupsd_temp, &update_apcupsd)
995         END OBJ(apcupsd_lastxfer, &update_apcupsd)
996 #endif /* APCUPSD */
997         END {
998                 char buf[256];
999
1000                 NORM_ERR("unknown variable %s", s);
1001                 obj->type = OBJ_text;
1002                 snprintf(buf, 256, "${%s}", s);
1003                 obj->data.s = strndup(buf, text_buffer_size);
1004         }
1005 #undef OBJ
1006 #undef OBJ_IF
1007 #undef OBJ_ARG
1008 #undef OBJ_IF_ARG
1009 #undef __OBJ_HEAD
1010 #undef __OBJ_IF
1011 #undef __OBJ_ARG
1012 #undef END
1013
1014         return obj;
1015 }
1016
1017 /*
1018  * - assumes that *string is '#'
1019  * - removes the part from '#' to the end of line ('\n' or '\0')
1020  * - it removes the '\n'
1021  * - copies the last char into 'char *last' argument, which should be a pointer
1022  *   to a char rather than a string.
1023  */
1024 static size_t remove_comment(char *string, char *last)
1025 {
1026         char *end = string;
1027         while (*end != '\0' && *end != '\n') {
1028                 ++end;
1029         }
1030         if (last) *last = *end;
1031         if (*end == '\n') end++;
1032         strfold(string, end - string);
1033         return end - string;
1034 }
1035
1036 size_t remove_comments(char *string)
1037 {
1038         char *curplace;
1039         size_t folded = 0;
1040         for (curplace = string; *curplace != 0; curplace++) {
1041                 if (*curplace == '\\' && *(curplace + 1) == '#') {
1042                         // strcpy can't be used for overlapping strings
1043                         strfold(curplace, 1);
1044                         folded += 1;
1045                 } else if (*curplace == '#') {
1046                         folded += remove_comment(curplace, 0);
1047                 }
1048         }
1049         return folded;
1050 }
1051
1052 int extract_variable_text_internal(struct text_object *retval, const char *const_p)
1053 {
1054         struct text_object *obj;
1055         char *p, *s, *orig_p;
1056         long line;
1057         void *ifblock_opaque = NULL;
1058         char *tmp_p;
1059         char *arg = 0;
1060         size_t len = 0;
1061
1062         p = strndup(const_p, max_user_text - 1);
1063         while (text_contains_templates(p)) {
1064                 char *tmp;
1065                 tmp = find_and_replace_templates(p);
1066                 free(p);
1067                 p = tmp;
1068         }
1069         s = orig_p = p;
1070
1071         if (strcmp(p, const_p)) {
1072                 DBGP("replaced all templates in text: input is\n'%s'\noutput is\n'%s'", const_p, p);
1073         } else {
1074                 DBGP("no templates to replace");
1075         }
1076
1077         memset(retval, 0, sizeof(struct text_object));
1078
1079         line = global_text_lines;
1080
1081         while (*p) {
1082                 if (*p == '\n') {
1083                         line++;
1084                 }
1085                 if (*p == '$') {
1086                         *p = '\0';
1087                         obj = create_plain_text(s);
1088                         if (obj != NULL) {
1089                                 append_object(retval, obj);
1090                         }
1091                         *p = '$';
1092                         p++;
1093                         s = p;
1094
1095                         if (*p != '$') {
1096                                 char buf[256];
1097                                 const char *var;
1098
1099                                 /* variable is either $foo or ${foo} */
1100                                 if (*p == '{') {
1101                                         unsigned int brl = 1, brr = 0;
1102
1103                                         p++;
1104                                         s = p;
1105                                         while (*p && brl != brr) {
1106                                                 if (*p == '{') {
1107                                                         brl++;
1108                                                 }
1109                                                 if (*p == '}') {
1110                                                         brr++;
1111                                                 }
1112                                                 p++;
1113                                         }
1114                                         p--;
1115                                 } else {
1116                                         s = p;
1117                                         if (*p == '#') {
1118                                                 p++;
1119                                         }
1120                                         while (*p && (isalnum((int) *p) || *p == '_')) {
1121                                                 p++;
1122                                         }
1123                                 }
1124
1125                                 /* copy variable to buffer */
1126                                 len = (p - s > 255) ? 255 : (p - s);
1127                                 strncpy(buf, s, len);
1128                                 buf[len] = '\0';
1129
1130                                 if (*p == '}') {
1131                                         p++;
1132                                 }
1133                                 s = p;
1134
1135                                 /* search for variable in environment */
1136
1137                                 var = getenv(buf);
1138                                 if (var) {
1139                                         obj = create_plain_text(var);
1140                                         if (obj) {
1141                                                 append_object(retval, obj);
1142                                         }
1143                                         continue;
1144                                 }
1145
1146                                 /* if variable wasn't found in environment, use some special */
1147
1148                                 arg = 0;
1149
1150                                 /* split arg */
1151                                 if (strchr(buf, ' ')) {
1152                                         arg = strchr(buf, ' ');
1153                                         *arg = '\0';
1154                                         arg++;
1155                                         while (isspace((int) *arg)) {
1156                                                 arg++;
1157                                         }
1158                                         if (!*arg) {
1159                                                 arg = 0;
1160                                         }
1161                                 }
1162
1163                                 /* lowercase variable name */
1164                                 tmp_p = buf;
1165                                 while (*tmp_p) {
1166                                         *tmp_p = tolower(*tmp_p);
1167                                         tmp_p++;
1168                                 }
1169
1170                                 obj = construct_text_object(buf, arg,
1171                                                 line, &ifblock_opaque, orig_p);
1172                                 if (obj != NULL) {
1173                                         append_object(retval, obj);
1174                                 }
1175                                 continue;
1176                         } else {
1177                                 obj = create_plain_text("$");
1178                                 s = p + 1;
1179                                 if (obj != NULL) {
1180                                         append_object(retval, obj);
1181                                 }
1182                         }
1183                 } else if (*p == '\\' && *(p+1) == '#') {
1184                         strfold(p, 1);
1185                 } else if (*p == '#') {
1186                         char c;
1187                         if (remove_comment(p, &c) && p > orig_p && c == '\n') {
1188                                 /* if remove_comment removed a newline, we need to 'back up' with p */
1189                                 p--;
1190                         }
1191                 }
1192                 p++;
1193         }
1194         obj = create_plain_text(s);
1195         if (obj != NULL) {
1196                 append_object(retval, obj);
1197         }
1198
1199         if (!ifblock_stack_empty(&ifblock_opaque)) {
1200                 NORM_ERR("one or more $endif's are missing");
1201         }
1202
1203         free(orig_p);
1204         return 0;
1205 }
1206
1207 /*
1208  * Frees the list of text objects root points to.  When internal = 1, it won't
1209  * free global objects.
1210  */
1211 void free_text_objects(struct text_object *root, int internal)
1212 {
1213         struct text_object *obj;
1214
1215         if (!root->prev) {
1216                 return;
1217         }
1218
1219 #define data obj->data
1220         for (obj = root->prev; obj; obj = root->prev) {
1221                 root->prev = obj->prev;
1222                 switch (obj->type) {
1223 #ifndef __OpenBSD__
1224                         case OBJ_acpitemp:
1225                                 close(data.i);
1226                                 break;
1227 #endif /* !__OpenBSD__ */
1228 #ifdef __linux__
1229                         case OBJ_i2c:
1230                         case OBJ_platform:
1231                         case OBJ_hwmon:
1232                                 free_sysfs_sensor(obj);
1233                                 break;
1234 #endif /* __linux__ */
1235                         case OBJ_read_tcp:
1236                                 free_read_tcp(obj);
1237                                 break;
1238                         case OBJ_time:
1239                         case OBJ_utime:
1240                                 free_time(obj);
1241                                 break;
1242                         case OBJ_tztime:
1243                                 free_tztime(obj);
1244                                 break;
1245                         case OBJ_mboxscan:
1246                                 free_mboxscan(obj);
1247                                 break;
1248                         case OBJ_mails:
1249                         case OBJ_new_mails:
1250                         case OBJ_seen_mails:
1251                         case OBJ_unseen_mails:
1252                         case OBJ_flagged_mails:
1253                         case OBJ_unflagged_mails:
1254                         case OBJ_forwarded_mails:
1255                         case OBJ_unforwarded_mails:
1256                         case OBJ_replied_mails:
1257                         case OBJ_unreplied_mails:
1258                         case OBJ_draft_mails:
1259                         case OBJ_trashed_mails:
1260                                 free_local_mails(obj);
1261                                 break;
1262                         case OBJ_imap_unseen:
1263                         case OBJ_imap_messages:
1264                         case OBJ_pop3_unseen:
1265                         case OBJ_pop3_used:
1266                                 free_mail_obj(obj);
1267                                 break;
1268                         case OBJ_if_empty:
1269                         case OBJ_if_match:
1270                                 free_text_objects(obj->sub, 1);
1271                                 free(obj->sub);
1272                                 break;
1273                         case OBJ_if_existing:
1274                         case OBJ_if_mounted:
1275                         case OBJ_if_running:
1276                                 free(data.s);
1277                                 break;
1278                         case OBJ_head:
1279                         case OBJ_tail:
1280                                 free_tailhead(obj);
1281                                 break;
1282                         case OBJ_text:
1283                         case OBJ_font:
1284                         case OBJ_image:
1285                         case OBJ_eval:
1286                         case OBJ_exec:
1287                         case OBJ_execbar:
1288 #ifdef X11
1289                         case OBJ_execgauge:
1290                         case OBJ_execgraph:
1291 #endif
1292                         case OBJ_execp:
1293                                 free_exec(obj);
1294                                 break;
1295 #ifdef HAVE_ICONV
1296                         case OBJ_iconv_start:
1297                                 free_iconv();
1298                                 break;
1299 #endif
1300 #ifdef __linux__
1301                         case OBJ_disk_protect:
1302                                 free(data.s);
1303                                 break;
1304                         case OBJ_if_gw:
1305                         case OBJ_gw_iface:
1306                         case OBJ_gw_ip:
1307                                 free_gateway_info();
1308                                 break;
1309                         case OBJ_ioscheduler:
1310                                 if(data.s)
1311                                         free(data.s);
1312                                 break;
1313 #endif
1314 #if (defined(__FreeBSD__) || defined(__linux__))
1315                         case OBJ_if_up:
1316                                 free_if_up(obj);
1317                                 break;
1318 #endif
1319 #ifdef XMMS2
1320                         case OBJ_xmms2_artist:
1321                                 if (info.xmms2.artist) {
1322                                         free(info.xmms2.artist);
1323                                         info.xmms2.artist = 0;
1324                                 }
1325                                 break;
1326                         case OBJ_xmms2_album:
1327                                 if (info.xmms2.album) {
1328                                         free(info.xmms2.album);
1329                                         info.xmms2.album = 0;
1330                                 }
1331                                 break;
1332                         case OBJ_xmms2_title:
1333                                 if (info.xmms2.title) {
1334                                         free(info.xmms2.title);
1335                                         info.xmms2.title = 0;
1336                                 }
1337                                 break;
1338                         case OBJ_xmms2_genre:
1339                                 if (info.xmms2.genre) {
1340                                         free(info.xmms2.genre);
1341                                         info.xmms2.genre = 0;
1342                                 }
1343                                 break;
1344                         case OBJ_xmms2_comment:
1345                                 if (info.xmms2.comment) {
1346                                         free(info.xmms2.comment);
1347                                         info.xmms2.comment = 0;
1348                                 }
1349                                 break;
1350                         case OBJ_xmms2_url:
1351                                 if (info.xmms2.url) {
1352                                         free(info.xmms2.url);
1353                                         info.xmms2.url = 0;
1354                                 }
1355                                 break;
1356                         case OBJ_xmms2_date:
1357                                 if (info.xmms2.date) {
1358                                         free(info.xmms2.date);
1359                                         info.xmms2.date = 0;
1360                                 }
1361                                 break;
1362                         case OBJ_xmms2_status:
1363                                 if (info.xmms2.status) {
1364                                         free(info.xmms2.status);
1365                                         info.xmms2.status = 0;
1366                                 }
1367                                 break;
1368                         case OBJ_xmms2_playlist:
1369                                 if (info.xmms2.playlist) {
1370                                         free(info.xmms2.playlist);
1371                                         info.xmms2.playlist = 0;
1372                                 }
1373                                 break;
1374                         case OBJ_xmms2_smart:
1375                                 if (info.xmms2.artist) {
1376                                         free(info.xmms2.artist);
1377                                         info.xmms2.artist = 0;
1378                                 }
1379                                 if (info.xmms2.title) {
1380                                         free(info.xmms2.title);
1381                                         info.xmms2.title = 0;
1382                                 }
1383                                 if (info.xmms2.url) {
1384                                         free(info.xmms2.url);
1385                                         info.xmms2.url = 0;
1386                                 }
1387                                 break;
1388 #endif
1389 #ifdef BMPX
1390                         case OBJ_bmpx_title:
1391                         case OBJ_bmpx_artist:
1392                         case OBJ_bmpx_album:
1393                         case OBJ_bmpx_track:
1394                         case OBJ_bmpx_uri:
1395                         case OBJ_bmpx_bitrate:
1396                                 break;
1397 #endif
1398 #ifdef EVE
1399                         case OBJ_eve:
1400                                 free_eve(obj);
1401                                 break;
1402 #endif
1403 #ifdef HAVE_CURL
1404                         case OBJ_curl:
1405                                 curl_obj_free(obj);
1406                                 break;
1407 #endif
1408 #ifdef RSS
1409                         case OBJ_rss:
1410                                 rss_free_obj_info(obj);
1411                                 break;
1412 #endif
1413 #ifdef WEATHER
1414                         case OBJ_weather:
1415                                 free_weather(obj);
1416                                 break;
1417 #endif
1418 #ifdef XOAP
1419                         case OBJ_weather_forecast:
1420                                 free_weather(obj);
1421                                 break;
1422 #endif
1423 #ifdef HAVE_LUA
1424                         case OBJ_lua:
1425                         case OBJ_lua_parse:
1426                         case OBJ_lua_bar:
1427 #ifdef X11
1428                         case OBJ_lua_graph:
1429                         case OBJ_lua_gauge:
1430 #endif /* X11 */
1431                                 free(data.s);
1432                                 break;
1433 #endif /* HAVE_LUA */
1434                         case OBJ_pre_exec:
1435                                 break;
1436 #ifndef __OpenBSD__
1437                         case OBJ_battery:
1438                                 free(data.s);
1439                                 break;
1440                         case OBJ_battery_short:
1441                                 free(data.s);
1442                                 break;
1443                         case OBJ_battery_time:
1444                                 free(data.s);
1445                                 break;
1446 #endif /* !__OpenBSD__ */
1447                         case OBJ_execpi:
1448                         case OBJ_execi:
1449                         case OBJ_execibar:
1450                         case OBJ_texeci:
1451 #ifdef X11
1452                         case OBJ_execigraph:
1453                         case OBJ_execigauge:
1454 #endif /* X11 */
1455                                 free_execi(obj);
1456                                 break;
1457                         case OBJ_nameserver:
1458                                 free_dns_data();
1459                                 break;
1460                         case OBJ_top:
1461                         case OBJ_top_mem:
1462                         case OBJ_top_time:
1463 #ifdef IOSTATS
1464                         case OBJ_top_io:
1465 #endif
1466                                 free_top(obj, internal);
1467                                 break;
1468 #ifdef HDDTEMP
1469                         case OBJ_hddtemp:
1470                                 if (data.s) {
1471                                         free(data.s);
1472                                         data.s = NULL;
1473                                 }
1474                                 free_hddtemp();
1475                                 break;
1476 #endif /* HDDTEMP */
1477                         case OBJ_entropy_avail:
1478                         case OBJ_entropy_perc:
1479                         case OBJ_entropy_poolsize:
1480                         case OBJ_entropy_bar:
1481                                 break;
1482                         case OBJ_user_names:
1483                                 if (info.users.names) {
1484                                         free(info.users.names);
1485                                         info.users.names = 0;
1486                                 }
1487                                 break;
1488                         case OBJ_user_terms:
1489                                 if (info.users.terms) {
1490                                         free(info.users.terms);
1491                                         info.users.terms = 0;
1492                                 }
1493                                 break;
1494                         case OBJ_user_times:
1495                                 if (info.users.times) {
1496                                         free(info.users.times);
1497                                         info.users.times = 0;
1498                                 }
1499                                 break;
1500 #ifdef IBM
1501                         case OBJ_smapi:
1502                         case OBJ_smapi_bat_perc:
1503                         case OBJ_smapi_bat_temp:
1504                         case OBJ_smapi_bat_power:
1505                                 free(data.s);
1506                                 break;
1507                         case OBJ_if_smapi_bat_installed:
1508                                 free(data.s);
1509                                 break;
1510 #endif /* IBM */
1511 #ifdef NVIDIA
1512                         case OBJ_nvidia:
1513                                 free_nvidia(obj);
1514                                 break;
1515 #endif /* NVIDIA */
1516 #ifdef MPD
1517                         case OBJ_mpd_title:
1518                         case OBJ_mpd_artist:
1519                         case OBJ_mpd_album:
1520                         case OBJ_mpd_random:
1521                         case OBJ_mpd_repeat:
1522                         case OBJ_mpd_vol:
1523                         case OBJ_mpd_bitrate:
1524                         case OBJ_mpd_status:
1525                         case OBJ_mpd_bar:
1526                         case OBJ_mpd_elapsed:
1527                         case OBJ_mpd_length:
1528                         case OBJ_mpd_track:
1529                         case OBJ_mpd_name:
1530                         case OBJ_mpd_file:
1531                         case OBJ_mpd_percent:
1532                         case OBJ_mpd_smart:
1533                         case OBJ_if_mpd_playing:
1534                                 free_mpd();
1535                                 break;
1536 #endif /* MPD */
1537 #ifdef MOC
1538                         case OBJ_moc_state:
1539                         case OBJ_moc_file:
1540                         case OBJ_moc_title:
1541                         case OBJ_moc_artist:
1542                         case OBJ_moc_song:
1543                         case OBJ_moc_album:
1544                         case OBJ_moc_totaltime:
1545                         case OBJ_moc_timeleft:
1546                         case OBJ_moc_curtime:
1547                         case OBJ_moc_bitrate:
1548                         case OBJ_moc_rate:
1549                                 free_moc();
1550                                 break;
1551 #endif /* MOC */
1552                         case OBJ_include:
1553                         case OBJ_blink:
1554                         case OBJ_to_bytes:
1555                                 if(obj->sub) {
1556                                         free_text_objects(obj->sub, 1);
1557                                         free(obj->sub);
1558                                 }
1559                                 break;
1560                         case OBJ_scroll:
1561                                 free_scroll(obj);
1562                                 break;
1563                         case OBJ_combine:
1564                                 free_combine(obj);
1565                                 break;
1566 #ifdef APCUPSD
1567                         case OBJ_apcupsd:
1568                         case OBJ_apcupsd_name:
1569                         case OBJ_apcupsd_model:
1570                         case OBJ_apcupsd_upsmode:
1571                         case OBJ_apcupsd_cable:
1572                         case OBJ_apcupsd_status:
1573                         case OBJ_apcupsd_linev:
1574                         case OBJ_apcupsd_load:
1575                         case OBJ_apcupsd_loadbar:
1576 #ifdef X11
1577                         case OBJ_apcupsd_loadgraph:
1578                         case OBJ_apcupsd_loadgauge:
1579 #endif /* X11 */
1580                         case OBJ_apcupsd_charge:
1581                         case OBJ_apcupsd_timeleft:
1582                         case OBJ_apcupsd_temp:
1583                         case OBJ_apcupsd_lastxfer:
1584                                 break;
1585 #endif /* APCUPSD */
1586 #ifdef TCP_PORT_MONITOR
1587                         case OBJ_tcp_portmon:
1588                                 tcp_portmon_free(obj);
1589                                 break;
1590 #endif /* TCP_PORT_MONITOR */
1591 #ifdef X11
1592                         case OBJ_desktop:
1593                         case OBJ_desktop_number:
1594                         case OBJ_desktop_name:
1595                                 if(info.x11.desktop.name && !internal) {
1596                                   free(info.x11.desktop.name);
1597                                   info.x11.desktop.name = NULL;
1598                                 }
1599                                 if(info.x11.desktop.all_names && !internal) {
1600                                   free(info.x11.desktop.all_names);
1601                                   info.x11.desktop.all_names = NULL;
1602                                 }
1603                                 break;
1604 #endif /* X11 */
1605                 }
1606                 free(obj);
1607         }
1608 #undef data
1609 }
1610