shadow/lib/nscd.c

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/* Author: Peter Vrabec <pvrabec@redhat.com> */
#include <config.h>
#ifdef USE_NSCD
#include <stdio.h>
#include <sys/wait.h>
#include <sys/types.h>
#include "exitcodes.h"
#include "defines.h"
#include "prototypes.h"
#include "nscd.h"
#define MSG_NSCD_FLUSH_CACHE_FAILED "%s: Failed to flush the nscd cache.\n"
/*
* nscd_flush_cache - flush specified service buffer in nscd cache
*/
int nscd_flush_cache (const char *service)
{
int status, code;
const char *cmd = "/usr/sbin/nscd";
const char *spawnedArgs[] = {"nscd", "-i", service, NULL};
const char *spawnedEnv[] = {NULL};
if (run_command (cmd, spawnedArgs, spawnedEnv, &status) != 0) {
/* run_command writes its own more detailed message. */
(void) fprintf (shadow_logfd, _(MSG_NSCD_FLUSH_CACHE_FAILED), Prog);
return -1;
}
code = WEXITSTATUS (status);
if (!WIFEXITED (status)) {
(void) fprintf (shadow_logfd,
_("%s: nscd did not terminate normally (signal %d)\n"),
Prog, WTERMSIG (status));
return -1;
} else if (code == E_CMD_NOTFOUND) {
/* nscd is not installed, or it is installed but uses an
interpreter that is missing. Probably the former. */
return 0;
} else if (code == 1) {
/* nscd is installed, but it isn't active. */
return 0;
} else if (code != 0) {
(void) fprintf (shadow_logfd, _("%s: nscd exited with status %d\n"),
Prog, code);
(void) fprintf (shadow_logfd, _(MSG_NSCD_FLUSH_CACHE_FAILED), Prog);
return -1;
}
return 0;
}
#else /* USE_NSCD */
extern int errno; /* warning: ANSI C forbids an empty source file */
#endif /* USE_NSCD */