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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON |
PUTPWENT(3) Linux Programmer's Manual PUTPWENT(3)
putpwent - write a password file entry
#include <stdio.h>
#include <sys/types.h>
#include <pwd.h>
int putpwent(const struct passwd *p, FILE *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
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 */
};
The putpwent() function returns 0 on success, or -1 if an error
occurs. In the event of an error, errno is set to indicate the
cause.
EINVAL Invalid (NULL) argument given.
For an explanation of the terms used in this section, see
attributes(7).
┌───────────┬───────────────┬────────────────┐
│Interface │ Attribute │ Value │
├───────────┼───────────────┼────────────────┤
│putpwent() │ Thread safety │ MT-Safe locale │
└───────────┴───────────────┴────────────────┘
SVr4.
endpwent(3), fgetpwent(3), getpw(3), getpwent(3), getpwnam(3),
getpwuid(3), setpwent(3)
This page is part of release 4.12 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
GNU 2016-03-15 PUTPWENT(3)
Pages that refer to this page: fgetpwent(3), getpw(3), getpwent(3), getpwent_r(3), getpwnam(3)