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Reset signal mask at sudo startup time; we need to be able to rely on

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normal signal delivery to control the child process.
This commit is contained in:
Todd C. Miller
2010-09-14 09:23:19 -04:00
parent 607eab1151
commit 01c7840dc5
1 changed files with 4 additions and 1 deletions
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5
src/sudo.c
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@@ -111,6 +111,7 @@ main(int argc, char *argv[], char *envp[])
char **user_info, **command_info, **argv_out, **user_env_out; char **user_info, **command_info, **argv_out, **user_env_out;
struct plugin_container *plugin, *next; struct plugin_container *plugin, *next;
struct command_details command_details; struct command_details command_details;
sigset_t mask;
int ok; int ok;
#if defined(SUDO_DEVEL) && defined(__OpenBSD__) #if defined(SUDO_DEVEL) && defined(__OpenBSD__)
extern char *malloc_options; extern char *malloc_options;
@@ -129,7 +130,9 @@ main(int argc, char *argv[], char *envp[])
if (geteuid() != 0) if (geteuid() != 0)
errorx(1, "must be setuid root"); errorx(1, "must be setuid root");
/* Turn off core dumps and make sure fds 0-2 are open. */ /* Reset signal mask, disable core dumps and make sure fds 0-2 are open. */
(void) sigfillset(&mask);
(void) sigprocmask(SIG_UNBLOCK, &mask, NULL);
disable_coredumps(); disable_coredumps();
fix_fds(); fix_fds();