2 * Copyright (c) 1989 - 1992, Julianne Frances Haugh
3 * Copyright (c) 1996 - 2000, Marek Michałkiewicz
4 * Copyright (c) 2001 - 2005, Tomasz Kłoczko
5 * Copyright (c) 2008 , Nicolas François
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35 #ident "$Id: sulog.c 2849 2009-04-30 21:08:49Z nekral-guest $"
37 #include <sys/types.h>
41 #include "prototypes.h"
46 * sulog - log a SU command execution result
48 void sulog (const char *tty, bool success, const char *oldname, const char *name)
59 "Successful su for %s by %s",name,oldname));
62 "FAILED su for %s by %s",name,oldname));
65 if ((sulog_file = getdef_str ("SULOG_FILE")) == (char *) 0)
69 oldmask = umask (077);
70 /* Switch to group root to avoid creating the sulog file with
71 * the wrong group ownership. */
72 if ((oldgid != 0) && (setgid (0) != 0)) {
74 "su session not logged to %s", sulog_file));
75 /* Continue, but do not switch back to oldgid later */
78 fp = fopen (sulog_file, "a+");
79 (void) umask (oldmask);
80 if ((oldgid != 0) && (setgid (oldgid) != 0)) {
83 "can't switch back to group `%d' in sulog",
85 /* Do not return if the group permission were raised. */
88 if (fp == (FILE *) 0) {
89 return; /* can't open or create logfile */
93 tm = localtime (&now);
95 fprintf (fp, "SU %.02d/%.02d %.02d:%.02d %c %s %s-%s\n",
96 tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min,
97 success ? '+' : '-', tty, oldname, name);
102 /* TODO: log if failure */