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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON |
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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 *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
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. On failure, it
returns -1, and errno is set to indicate the error.
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 5.13 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 2021-03-22 PUTPWENT(3)
Pages that refer to this page: fgetpwent(3), getpw(3), getpwent(3), getpwent_r(3), getpwnam(3)
Copyright and license for this manual page
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