diff options
Diffstat (limited to 'src/ifplugstatus.c')
| -rw-r--r-- | src/ifplugstatus.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/src/ifplugstatus.c b/src/ifplugstatus.c new file mode 100644 index 0000000..12cdd89 --- /dev/null +++ b/src/ifplugstatus.c @@ -0,0 +1,221 @@ +/* $Id$ */ + +/* + * This file is part of ifplugd. + * + * ifplugd is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * ifplugd is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with ifplugd; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#include <stdio.h> +#include <errno.h> +#include <string.h> +#include <unistd.h> +#include <getopt.h> +#include <stdlib.h> +#include <sys/ioctl.h> +#include <net/if.h> + +#include <libdaemon/dlog.h> + +#include "interface.h" +#include "svn-revision.h" + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +int interface_auto_up = 0, interface_do_message = 0; + +int verbose = 0; +char *interface = NULL; + +int handle(char *iface) { + int fd, r = 0; + interface_status_t s; + + if ((fd = socket(PF_INET, SOCK_DGRAM, 0)) < 0) + return -1; + + if (verbose > 0) { + printf("%s:\n", iface); + + if ((s = interface_detect_beat_ethtool(fd, iface)) == IFSTATUS_ERR) + printf(" SIOCETHTOOL failed (%s)\n", strerror(errno)); + else + printf(" SIOCETHTOOL: %s\n", s == IFSTATUS_UP ? "link beat detected" : "unplugged"); + + if ((s = interface_detect_beat_mii(fd, iface)) == IFSTATUS_ERR) + printf(" SIOCGMIIPHY failed (%s)\n", strerror(errno)); + else + printf(" SIOCGMIIPHY: %s\n", s == IFSTATUS_UP ? "link beat detected" : "unplugged"); + + if ((s = interface_detect_beat_priv(fd, iface)) == IFSTATUS_ERR) + printf(" SIOCDEVPRIVATE failed (%s)\n", strerror(errno)); + else + printf(" SIOCDEVPRIVATE: %s\n", s == IFSTATUS_UP ? "link beat detected" : "unplugged"); + + if ((s = interface_detect_beat_wlan(fd, iface)) == IFSTATUS_ERR) + printf(" Wireless failed.\n"); + else + printf(" Wireless: %s\n", s == IFSTATUS_UP ? "link beat detected" : "unplugged"); + + } else { + + if ((s = interface_detect_beat_mii(fd, iface)) == IFSTATUS_ERR) + if ((s = interface_detect_beat_ethtool(fd, iface)) == IFSTATUS_ERR) + if ((s = interface_detect_beat_wlan(fd, iface)) == IFSTATUS_ERR) + s = interface_detect_beat_priv(fd, iface); + + switch(s) { + case IFSTATUS_UP: + if (!verbose) + printf("%s: link beat detected\n", iface); + r = 1; + break; + + case IFSTATUS_DOWN: + if (!verbose) + printf("%s: unplugged\n", iface); + r = 2; + break; + + default: + if (!verbose) + printf("%s: not supported%s\n", iface, getuid() != 0 ? " (Retry as root?)" : ""); + + r = -1; + break; + } + } + + + close(fd); + return r; +} + +void usage(char *p) { + if (strrchr(p, '/')) + p = strchr(p, '/')+1; + + printf("%s [options] [INTERFACE]\n" + " -a --auto Enable interface automatically (%s)\n" + " -q --quiet Quiet behaviour (%s)\n" + " -v --verbose Enable verbosity (%s)\n" + " -h --help Show this help\n" + " -V --version Show version number\n", + p, interface_auto_up ? "on" : "off", verbose < 0 ? "on" : "off", verbose > 0 ? "on" : "off"); +} + + +void parse(int argc, char *argv[]) { + static struct option long_options[] = { + {"auto", no_argument, 0, 'a'}, + {"quiet", no_argument, 0, 'q'}, + {"verbose", no_argument, 0, 'v'}, + {"help", no_argument, 0, 'h'}, + {"version", no_argument, 0, 'V'}, + {0, 0, 0, 0} + }; + int option_index = 0; + int help = 0; + + for (;;) { + int c; + + if ((c = getopt_long(argc, argv, "avhqV", long_options, &option_index)) < 0) + break; + + switch (c) { + case 'a' : + interface_auto_up = !interface_auto_up; + break; + case 'v': + verbose++; + break; + case 'q': + verbose--; + break; + case 'h': + help = 1; + break; + case 'V': +#ifdef SVN_REVISION + printf("ifplugstatus "VERSION" (SVN: "SVN_REVISION")\n"); +#else + printf("ifplugstatus "VERSION"\n"); +#endif + exit(0); + default: + fprintf(stderr, "Unknown parameter.\n"); + exit(1); + + } + } + + if (help) { + usage(argv[0]); + exit(0); + } + + if (optind < argc) + interface = argv[optind]; +} + + +int main(int argc, char *argv[]) { + parse(argc, argv); + + if (interface) { + int r; + + if ((r = handle(interface)) < 0) { + if (verbose == 0) + fprintf(stderr, "Failure (%s)\n", strerror(errno)); + return 1; + } + + return r+1; + + } else { + FILE *f; + char ln[256]; + + if (!(f = fopen("/proc/net/dev", "r"))) { + fprintf(stderr, "Failed to open /proc/net/dev: %s\n", strerror(errno)); + return 1; + } + + fgets(ln, sizeof(ln), f); + fgets(ln, sizeof(ln), f); + + while (fgets(ln, sizeof(ln), f)) { + char *p, *e; + + p = ln+strspn(ln, " \t"); + if (!(e = strchr(p, ':'))) { + fprintf(stderr, "Parse failure in /proc/net/dev.\n"); + fclose(f); + return 1; + } + + *e = 0; + handle(p); + } + + fclose(f); + } + + return 0; +} |