1c274b738e
still some problems, at least with signal handling and locking on SMP. Submitted by: dick
108 lines
2.3 KiB
C
108 lines
2.3 KiB
C
#include <stddef.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <pwd.h>
|
|
#include "pthread.h"
|
|
|
|
static pthread_mutex_t getpw_mutex = PTHREAD_MUTEX_INITIALIZER;
|
|
|
|
static int
|
|
convert (struct passwd *ret, struct passwd *result,
|
|
char *buf, int buflen)
|
|
{
|
|
int len;
|
|
|
|
if (!buf) return -1;
|
|
|
|
*result = *ret;
|
|
|
|
result->pw_name = (char *) buf;
|
|
/* This is the size. */
|
|
len = strlen (ret->pw_name) + 1;
|
|
if (len > buflen) return -1;
|
|
buflen -= len;
|
|
buf += len;
|
|
strcpy (result->pw_name, ret->pw_name);
|
|
|
|
result->pw_passwd = (char *) buf;
|
|
/* This is the size. */
|
|
len = strlen (ret->pw_passwd) + 1;
|
|
if (len > buflen) return -1;
|
|
buflen -= len;
|
|
buf += len;
|
|
strcpy (result->pw_passwd, ret->pw_passwd);
|
|
|
|
result->pw_gecos = (char *) buf;
|
|
/* This is the size. */
|
|
len = strlen (ret->pw_gecos) + 1;
|
|
if (len > buflen) return -1;
|
|
buflen -= len;
|
|
buf += len;
|
|
strcpy (result->pw_gecos, ret->pw_gecos);
|
|
|
|
result->pw_dir = (char *) buf;
|
|
/* This is the size. */
|
|
len = strlen (ret->pw_dir) + 1;
|
|
if (len > buflen) return -1;
|
|
buflen -= len;
|
|
buf += len;
|
|
strcpy (result->pw_dir, ret->pw_dir);
|
|
|
|
result->pw_shell = (char *) buf;
|
|
/* This is the size. */
|
|
len = strlen (ret->pw_shell) + 1;
|
|
if (len > buflen) return -1;
|
|
buflen -= len;
|
|
buf += len;
|
|
strcpy (result->pw_shell, ret->pw_shell);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int getpwnam_r (const char *name, struct passwd *result,
|
|
char *buffer, size_t buflen,
|
|
struct passwd ** resptr)
|
|
{
|
|
struct passwd * p;
|
|
int retval;
|
|
|
|
pthread_mutex_lock (&getpw_mutex);
|
|
p = getpwnam (name);
|
|
if (p == NULL) {
|
|
*resptr = NULL;
|
|
retval = ESRCH;
|
|
} else
|
|
if (convert (p, result, buffer, buflen) != 0) {
|
|
*resptr = NULL;
|
|
retval = ERANGE;
|
|
} else {
|
|
*resptr = result;
|
|
retval = 0;
|
|
}
|
|
pthread_mutex_unlock (&getpw_mutex);
|
|
return retval;
|
|
}
|
|
|
|
int getpwuid_r (uid_t uid, struct passwd *result,
|
|
char *buffer, size_t buflen,
|
|
struct passwd ** resptr)
|
|
{
|
|
struct passwd * p;
|
|
int retval;
|
|
|
|
pthread_mutex_lock (&getpw_mutex);
|
|
p = getpwuid (uid);
|
|
if (p == NULL) {
|
|
*resptr = NULL;
|
|
retval = ESRCH;
|
|
} else
|
|
if (convert (p, result, buffer, buflen) != 0) {
|
|
*resptr = NULL;
|
|
retval = ERANGE;
|
|
} else {
|
|
*resptr = result;
|
|
retval = 0;
|
|
}
|
|
pthread_mutex_unlock (&getpw_mutex);
|
|
return retval;
|
|
}
|