Name
putpwent - write a password file entryLibrary
Standard C library ( libc ", " -lc )Synopsis
#include <stdio.h> #include <sys/types.h> #include <pwd.h> int putpwent(const struct passwd *restrict p \
", FILE *restrict " stream );
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
putpwent()
Since glibc 2.19:
_DEFAULT_SOURCE
glibc 2.19 and earlier:
_SVID_SOURCE
Description
The putpwent() function writes a password entry from the structure p in the file associated with stream.The passwd structure is defined in <pwd.h> as follows:
struct passwd {
char *pw_name; /* username */
char *pw_passwd; /* user password */
uid_t pw_uid; /* user ID */
gid_t pw_gid; /* group ID */
char *pw_gecos; /* real name */
char *pw_dir; /* home directory */
char *pw_shell; /* shell program */
};
Return Value
The putpwent() function returns 0 on success. On failure, it returns -1, and errno is set to indicate the error.Errors
EINVAL Invalid (NULL) argument given.
Attributes
For an explanation of the terms used in this section, see attributes(7).| Interface | Attribute | Value |
| T} | Thread safety | MT-Safe locale |