1 /* MasqMail

2 Copyright (C) 1999-2001 Oliver Kurth

3 Copyright (C) 2008, 2010 markus schnalke <meillo@marmaro.de>

4

5 This program is free software; you can redistribute it and/or modify

6 it under the terms of the GNU General Public License as published by

7 the Free Software Foundation; either version 2 of the License, or

8 (at your option) any later version.

9

10 This program is distributed in the hope that it will be useful,

11 but WITHOUT ANY WARRANTY; without even the implied warranty of

12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

13 GNU General Public License for more details.

14

15 You should have received a copy of the GNU General Public License

16 along with this program; if not, write to the Free Software

17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

18 */

19

20 #include <sys/wait.h>

21

22 #include "masqmail.h"

23 #include "peopen.h"

24

25

26 gchar*

27 online_query()

28 {

29 gchar* pipe = conf.online_query;

30 pid_t pid;

31 void (*old_signal) (int);

32 int status;

33 FILE *in;

34 gchar *name = NULL;

35

36 if (!conf.online_query) {

37 return NULL;

38 }

39 DEBUG(3) debugf("online query `%s'\n", pipe);

40

41 old_signal = signal(SIGCHLD, SIG_DFL);

42

43 in = peopen(pipe, "r", environ, &pid);

44 if (!in) {

45 logwrite(LOG_ALERT, "could not open pipe '%s': %s\n", pipe, strerror(errno));

46 signal(SIGCHLD, old_signal);

47 return NULL;

48 }

49

50 gchar output[256];

51 if (fgets(output, 255, in)) {

52 g_strchomp(g_strchug(output));

53 if (strlen(output) == 0) {

54 logwrite(LOG_ALERT, "only whitespace connection name\n");

55 name = NULL;

56 } else {

57 name = g_strdup(output);

58 }

59 } else {

60 logwrite(LOG_ALERT, "nothing read from pipe %s\n", pipe);

61 name = NULL;

62 }

63 fclose(in);

64 waitpid(pid, &status, 0);

65 if (WEXITSTATUS(status) != 0) {

66 g_free(name);

67 name = NULL;

68 }

69

70 signal(SIGCHLD, old_signal);

71

72 return name;

73 }