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Free up the garbage via an atexit() handler instead of requiring

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a call to gc_exit.
This commit is contained in:
Todd C. Miller
2016-01-28 11:01:42 -07:00
parent 78ac87cd90
commit 23aeb0b5ec
1 changed files with 17 additions and 10 deletions
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27
src/sudo.c
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@@ -114,7 +114,7 @@ static char **get_user_info(struct user_details *);
static void command_info_to_details(char * const info[],
struct command_details *details);
static bool gc_add(enum sudo_gc_types type, void *ptr);
static void gc_exit(int exit_code) __attribute__((__noreturn__));
static void gc_init(void);
/* Policy plugin convenience functions. */
static int policy_open(struct plugin_container *plugin,
@@ -245,11 +245,11 @@ main(int argc, char *argv[], char *envp[])
case MODE_VALIDATE:
case MODE_VALIDATE|MODE_INVALIDATE:
ok = policy_validate(&policy_plugin);
gc_exit(ok != 1);
exit(ok != 1);
case MODE_KILL:
case MODE_INVALIDATE:
policy_invalidate(&policy_plugin, sudo_mode == MODE_KILL);
gc_exit(0);
exit(0);
break;
case MODE_CHECK:
case MODE_CHECK|MODE_INVALIDATE:
@@ -257,7 +257,7 @@ main(int argc, char *argv[], char *envp[])
case MODE_LIST|MODE_INVALIDATE:
ok = policy_list(&policy_plugin, nargc, nargv,
ISSET(sudo_mode, MODE_LONG_LIST), list_user);
gc_exit(ok != 1);
exit(ok != 1);
case MODE_EDIT:
case MODE_RUN:
ok = policy_check(&policy_plugin, nargc, nargv, env_add,
@@ -266,7 +266,7 @@ main(int argc, char *argv[], char *envp[])
if (ok != 1) {
if (ok == -2)
usage(1);
gc_exit(1); /* plugin printed error message */
exit(1); /* plugin printed error message */
}
/* Reset nargv/nargc based on argv_out. */
/* XXX - leaks old nargv in shell mode */
@@ -331,7 +331,7 @@ main(int argc, char *argv[], char *envp[])
}
sudo_debug_exit_int(__func__, __FILE__, __LINE__, sudo_debug_subsys,
WEXITSTATUS(status));
gc_exit(WEXITSTATUS(status));
exit(WEXITSTATUS(status));
}
int
@@ -341,6 +341,7 @@ os_init_common(int argc, char *argv[], char *envp[])
#ifdef STATIC_SUDOERS_PLUGIN
preload_static_symbols();
#endif
gc_init();
return 0;
}
@@ -1509,7 +1510,7 @@ gc_add(enum sudo_gc_types type, void *v)
}
static void
gc_exit(int exit_code)
gc_cleanup(void)
{
#ifdef NO_LEAKS
struct plugin_container *plugin;
@@ -1543,8 +1544,14 @@ gc_exit(int exit_code)
free(plugin);
}
sudo_debug_exit_int(__func__, __FILE__, __LINE__, sudo_debug_subsys,
exit_code);
debug_return;
#endif /* NO_LEAKS */
exit(exit_code);
}
static void
gc_init(void)
{
#ifdef NO_LEAKS
atexit(gc_cleanup);
#endif
}