 
			| GNU/Linux | CentOS 2.1AS(Slurm) | |
|  | getpwuid(3) |  | 
getpwnam, getpwuid − get password file entry
#include
<pwd.h> 
#include <sys/types.h>
struct passwd *getpwnam(const char * name);
struct passwd *getpwuid(uid_t uid);
The getpwnam() function returns a pointer to a structure containing the broken out fields of a line from /etc/passwd for the entry that matches the user name name.
The getpwuid() function returns a pointer to a structure containing the broken out fields of a line from /etc/passwd for the entry that matches the user uid uid.
The passwd structure is defined in <pwd.h> as follows:
struct passwd {
| /* user name */  | |||
| /* user password */  | |||
| /* user id */  | |||
| /* group id */ | 
char *pw_gecos; /* real name */
| /* home directory */ | 
char *pw_shell; /* shell
program */ 
};
The getpwnam() and getpwuid() functions return a pointer to the passwd structure, or NULL if the matching entry is not found or an error occurs.
| ENOMEM | Insufficient memory to allocate passwd structure. | 
/etc/passwd
password database file
SVID 3, POSIX, BSD 4.3
fgetpwent(3), getgrnam(3), getpwent(3), setpwent(3), endpwent(3), getpw(3), putpwent(3), passwd(5)
|  | getpwuid(3) |  |