shadow/lib/nscd.c
2008-08-30 18:33:13 +00:00

64 lines
1.5 KiB
C

/* Author: Peter Vrabec <pvrabec@redhat.com> */
#include <config.h>
#ifdef USE_NSCD
/* because of TEMP_FAILURE_RETRY */
#define _GNU_SOURCE
#include <features.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <spawn.h>
#include <errno.h>
#include <sys/wait.h>
#include <sys/types.h>
#include "defines.h"
#include "nscd.h"
#define MSG_NSCD_FLUSH_CACHE_FAILED "Failed to flush the nscd cache.\n"
/*
* nscd_flush_cache - flush specified service buffer in nscd cache
*/
int nscd_flush_cache (const char *service)
{
pid_t pid, termpid;
int err, status;
char *spawnedArgs[] = {"/usr/sbin/nscd", "nscd", "-i", service, NULL};
char *spawnedEnv[] = {NULL};
/* spawn process */
err = posix_spawn (&pid, spawnedArgs[0], NULL, NULL,
spawnedArgs, spawnedEnv);
if(0 != err)
{
(void) fputs (_(MSG_NSCD_FLUSH_CACHE_FAILED), stderr);
(void) fprintf (stderr, "posix_spawn() error=%d\n", err);
return -1;
}
/* Wait for the spawned process to exit */
termpid = TEMP_FAILURE_RETRY (waitpid (pid, &status, 0));
if (-1 == termpid)
{
(void) fputs (_(MSG_NSCD_FLUSH_CACHE_FAILED), stderr);
perror("waitpid");
return -1;
}
else if (termpid != pid)
{
(void) fputs (_(MSG_NSCD_FLUSH_CACHE_FAILED), stderr);
(void) fprintf (stderr, "waitpid returned %ld != %ld\n",
(long int) termpid, (long int) pid);
return -1;
}
return 0;
}
#else /* USE_NSCD */
extern int errno; /* warning: ANSI C forbids an empty source file */
#endif /* USE_NSCD */