1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- |
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2 | * |
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3 | * Dan Williams <dcbw@redhat.com> |
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4 | * |
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5 | * This program is free software; you can redistribute it and/or modify |
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6 | * it under the terms of the GNU General Public License as published by |
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7 | * the Free Software Foundation; either version 2 of the License, or |
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8 | * (at your option) any later version. |
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9 | * |
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10 | * This program is distributed in the hope that it will be useful, |
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 | * GNU General Public License for more details. |
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14 | * |
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15 | * You should have received a copy of the GNU General Public License |
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16 | * along with this program; if not, write to the Free Software |
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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18 | * |
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19 | * (C) Copyright 2006 Red Hat, Inc. |
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20 | */ |
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21 | |
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22 | #include "config.h" |
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23 | |
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24 | #include <stdio.h> |
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25 | #include <unistd.h> |
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26 | #include <errno.h> |
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27 | #include <sys/wait.h> |
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28 | #include <stdlib.h> |
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29 | #include <syslog.h> |
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30 | #include <glib.h> |
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31 | |
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32 | int main (int argc, char ** argv) |
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33 | { |
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34 | GPid gdb_pid; |
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35 | int out; |
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36 | char gdm_pid[16]; |
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37 | char line[256]; |
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38 | int gdb_stat; |
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39 | int bytes_read; |
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40 | gboolean res; |
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41 | gboolean done; |
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42 | GError *error; |
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43 | int options; |
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44 | char * args[] = { "gdb", |
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45 | "--batch", |
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46 | "--quiet", |
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47 | "--command=" DATADIR "/gdm/gdb-cmd", |
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48 | NULL, |
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49 | NULL }; |
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50 | |
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51 | snprintf (gdm_pid, sizeof (gdm_pid), "--pid=%d", getppid ()); |
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52 | args[4] = &gdm_pid[0]; |
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53 | error = NULL; |
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54 | res = g_spawn_async_with_pipes (NULL, |
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55 | args, |
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56 | NULL, |
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57 | G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD, |
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58 | NULL, |
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59 | NULL, |
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60 | &gdb_pid, |
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61 | NULL, |
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62 | &out, |
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63 | NULL, |
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64 | &error); |
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65 | if (! res) { |
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66 | g_warning ("Unable to get backtrace: %s", error->message); |
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67 | g_error_free (error); |
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68 | exit (1); |
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69 | } |
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70 | |
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71 | options = LOG_PID | LOG_CONS; |
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72 | #ifdef LOG_PERROR |
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73 | options |= LOG_PERROR; |
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74 | #endif |
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75 | |
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76 | openlog ("gdm", options, LOG_DAEMON); |
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77 | syslog (LOG_CRIT, "******************* START **********************************"); |
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78 | done = FALSE; |
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79 | while (!done) { |
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80 | bytes_read = read (out, line, sizeof (line) - 1); |
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81 | if (bytes_read > 0) { |
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82 | char *end = &line[0]; |
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83 | char *start = &line[0]; |
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84 | |
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85 | /* Can't just funnel the output to syslog, have to do a separate |
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86 | * syslog () for each line in the output. |
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87 | */ |
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88 | line[bytes_read] = '\0'; |
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89 | while (*end != '\0') { |
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90 | if (*end == '\n') { |
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91 | *end = '\0'; |
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92 | syslog (LOG_CRIT, "%s", start); |
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93 | start = end + 1; |
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94 | } |
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95 | end++; |
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96 | } |
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97 | } else if ((bytes_read <= 0) || ((errno != EINTR) && (errno != EAGAIN))) { |
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98 | done = TRUE; |
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99 | } |
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100 | } |
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101 | syslog (LOG_CRIT, "******************* END **********************************"); |
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102 | close (out); |
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103 | waitpid (gdb_pid, &gdb_stat, 0); |
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104 | exit (0); |
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105 | } |
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