table of contents
fgetpwent(3) | Library Functions Manual | fgetpwent(3) |
NAME¶
fgetpwent - get password file entry
LIBRARY¶
Standard C library (libc, -lc)
SYNOPSIS¶
#include <stdio.h> #include <sys/types.h> #include <pwd.h>
struct passwd *fgetpwent(FILE *stream);
fgetpwent():
Since glibc 2.19:
_DEFAULT_SOURCE
glibc 2.19 and earlier:
_SVID_SOURCE
DESCRIPTION¶
The fgetpwent() function returns a pointer to a structure containing the broken out fields of a line in the file stream. The first time it is called it returns the first entry; thereafter, it returns successive entries. The file referred to by stream must have the same format as /etc/passwd (see passwd(5)).
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 fgetpwent() function returns a pointer to a passwd structure, or NULL if there are no more entries or an error occurs. In the event of an error, errno is set to indicate the error.
ERRORS¶
- ENOMEM
- Insufficient memory to allocate passwd structure.
FILES¶
- /etc/passwd
- password database file
ATTRIBUTES¶
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
fgetpwent () | Thread safety | MT-Unsafe race:fgetpwent |
STANDARDS¶
None.
HISTORY¶
SVr4.
SEE ALSO¶
endpwent(3), fgetpwent_r(3), fopen(3), getpw(3), getpwent(3), getpwnam(3), getpwuid(3), putpwent(3), setpwent(3), passwd(5)
2023-03-30 | Linux man-pages 6.04 |