1 /* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
3 * Conky, a system monitor, based on torsmo
5 * Any original torsmo code is licensed under the BSD license
7 * All code written since the fork of torsmo is licensed under the GPL
9 * Please see COPYING for details
11 * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
12 * Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
14 * All rights reserved.
16 * This program is free software: you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation, either version 3 of the License, or
19 * (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program. If not, see <http://www.gnu.org/licenses/>.
28 * vim: ts=4 sw=4 noet ai cindent syntax=c
38 #include <sys/select.h>
39 #include <sys/socket.h>
40 #include <netinet/in.h>
47 int scan_hddtemp(const char *arg, char **dev, char **addr, int *port)
49 char buf1[32], buf2[64];
55 if ((ret = sscanf(arg, "%31s %63s %d", buf1, buf2, &n)) < 1)
58 if (strncmp(buf1, "/dev/", 5)) {
59 strncpy(buf1 + 5, buf1, 32 - 5);
60 strncpy(buf1, "/dev/", 5);
62 *dev = strndup(buf1, text_buffer_size);
65 *addr = strndup(buf2, text_buffer_size);
67 *addr = strndup("127.0.0.1", text_buffer_size);
79 /* this is an iterator:
80 * set line to NULL in consecutive calls to get the next field
81 * returns "<dev><unit><val>" or NULL on error
83 static char *read_hdd_val(const char *line)
85 static char line_s[512] = "\0";
87 char *dev, *val, unit;
91 if (!snprintf(line_s, 512, "%s", line)) return ret;
98 if (!(p = strchr(p, line_s[0])))
101 /* jump over the devname */
102 if (!(p = strchr(p, line_s[0])))
106 if (!(p = strchr(p, line_s[0])))
110 /* preset p for next call */
111 p = strchr(p + 1, line_s[0]);
113 if (dev && *dev && val && *val) {
114 asprintf(&ret, "%s%c%s", dev, unit, val);
119 /* returns <unit><val> or NULL on error or N/A */
120 char *get_hddtemp_info(char *dev, char *hostaddr, int port)
123 struct hostent he, *he_res = 0;
126 struct sockaddr_in addr;
132 if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
137 #ifdef HAVE_GETHOSTBYNAME_R
138 if (gethostbyname_r(hostaddr, &he, hostbuff,
139 sizeof(hostbuff), &he_res, &he_errno)) {
140 NORM_ERR("hddtemp gethostbyname_r: %s", hstrerror(h_errno));
141 #else /* HAVE_GETHOSTBYNAME_R */
142 if (!(he_res = gethostbyname(hostaddr))) {
143 perror("gethostbyname()");
144 #endif /* HAVE_GETHOSTBYNAME_R */
148 addr.sin_family = AF_INET;
149 addr.sin_port = htons(port);
150 addr.sin_addr = *((struct in_addr *) he_res->h_addr);
151 memset(&(addr.sin_zero), 0, 8);
153 if (connect(sockfd, (struct sockaddr *) &addr,
154 sizeof(struct sockaddr)) == -1) {
160 FD_SET(sockfd, &rfds);
162 /* We're going to wait up to a half second to see whether there's any
163 * data available. Polling with timeout set to 0 doesn't seem to work
169 i = select(sockfd + 1, &rfds, NULL, NULL, &tv);
170 if (i == -1) { /* select() failed */
171 if (errno == EINTR) {
172 /* silently ignore interrupted system call */
177 } else if (i == 0) { /* select() timeouted */
178 NORM_ERR("hddtemp had nothing for us");
185 i = recv(sockfd, p, BUFLEN - (p - buf), 0);
192 } while (i > 0 && p < buf + BUFLEN - 1);
195 NORM_ERR("hddtemp returned nada");
201 if ((p = read_hdd_val(buf)) == NULL)
204 if (!strncmp(dev, p, strlen(dev)))
205 asprintf(&r, "%s", p + strlen(dev));
207 } while(!r && (p = read_hdd_val(NULL)) != NULL);