1PUTPWENT(3)                Linux Programmer's Manual               PUTPWENT(3)
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NAME

6       putpwent - write a password file entry
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SYNOPSIS

9       #include <stdio.h>
10       #include <sys/types.h>
11       #include <pwd.h>
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13       int putpwent(const struct passwd *restrict p, FILE *restrict stream);
14
15   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
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17       putpwent():
18           Since glibc 2.19:
19               _DEFAULT_SOURCE
20           Glibc 2.19 and earlier:
21               _SVID_SOURCE
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DESCRIPTION

24       The putpwent() function writes a password entry from the structure p in
25       the file associated with stream.
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27       The passwd structure is defined in <pwd.h> as follows:
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29           struct passwd {
30               char    *pw_name;        /* username */
31               char    *pw_passwd;      /* user password */
32               uid_t    pw_uid;         /* user ID */
33               gid_t    pw_gid;         /* group ID */
34               char    *pw_gecos;       /* real name */
35               char    *pw_dir;         /* home directory */
36               char    *pw_shell;       /* shell program */
37           };
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RETURN VALUE

40       The putpwent() function returns 0 on success.  On failure,  it  returns
41       -1, and errno is set to indicate the error.
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ERRORS

44       EINVAL Invalid (NULL) argument given.
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ATTRIBUTES

47       For  an  explanation  of  the  terms  used  in  this  section,  see at‐
48       tributes(7).
49
50       ┌─────────────────────────────────────┬───────────────┬────────────────┐
51       │Interface                            │ Attribute     │ Value          │
52       ├─────────────────────────────────────┼───────────────┼────────────────┤
53       │putpwent()                           │ Thread safety │ MT-Safe locale │
54       └─────────────────────────────────────┴───────────────┴────────────────┘
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CONFORMING TO

57       SVr4.
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SEE ALSO

60       endpwent(3), fgetpwent(3), getpw(3),  getpwent(3),  getpwnam(3),  getp‐
61       wuid(3), setpwent(3)
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COLOPHON

64       This  page  is  part of release 5.13 of the Linux man-pages project.  A
65       description of the project, information about reporting bugs,  and  the
66       latest     version     of     this    page,    can    be    found    at
67       https://www.kernel.org/doc/man-pages/.
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71GNU                               2021-03-22                       PUTPWENT(3)
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