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Make sure the mailer exists and is a regular file before trying

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to exec it.
This commit is contained in:
Todd C. Miller
2013-08-13 14:48:24 -06:00
parent 39d630f2f2
commit 04b290e385
1 changed files with 5 additions and 0 deletions
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5
plugins/sudoers/logging.c
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@@ -542,6 +542,7 @@ send_mail(const char *fmt, ...)
int fd, pfd[2], status; int fd, pfd[2], status;
pid_t pid, rv; pid_t pid, rv;
sigaction_t sa; sigaction_t sa;
struct stat sb;
va_list ap; va_list ap;
#ifndef NO_ROOT_MAILER #ifndef NO_ROOT_MAILER
static char *root_envp[] = { static char *root_envp[] = {
@@ -559,6 +560,10 @@ send_mail(const char *fmt, ...)
if (!def_mailerpath || !def_mailto) if (!def_mailerpath || !def_mailto)
debug_return; debug_return;
/* Make sure the mailer exists and is a regular file. */
if (stat(def_mailerpath, &sb) != 0 || !S_ISREG(sb.st_mode))
debug_return;
/* Fork and return, child will daemonize. */ /* Fork and return, child will daemonize. */
switch (pid = sudo_debug_fork()) { switch (pid = sudo_debug_fork()) {
case -1: case -1: