1PUTPWENT(3) Linux Programmer's Manual PUTPWENT(3)
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6 putpwent - write a password file entry
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9 #include <stdio.h>
10 #include <sys/types.h>
11 #include <pwd.h>
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13 int putpwent(const struct passwd *p, FILE *stream);
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15 Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
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17 putpwent(): _SVID_SOURCE
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20 The putpwent() function writes a password entry from the structure p in
21 the file associated with stream.
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23 The passwd structure is defined in <pwd.h> as follows:
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25 struct passwd {
26 char *pw_name; /* username */
27 char *pw_passwd; /* user password */
28 uid_t pw_uid; /* user ID */
29 gid_t pw_gid; /* group ID */
30 char *pw_gecos; /* real name */
31 char *pw_dir; /* home directory */
32 char *pw_shell; /* shell program */
33 };
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36 The putpwent() function returns 0 on success, or -1 if an error occurs.
37 In the event of an error, errno is set to indicate the cause.
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40 EINVAL Invalid (NULL) argument given.
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43 SVr4.
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46 endpwent(3), fgetpwent(3), getpw(3), getpwent(3), getpwnam(3), getp‐
47 wuid(3), setpwent(3)
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50 This page is part of release 3.53 of the Linux man-pages project. A
51 description of the project, and information about reporting bugs, can
52 be found at http://www.kernel.org/doc/man-pages/.
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56GNU 2013-04-19 PUTPWENT(3)