GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
Debian 6.0.6(Squeeze) |
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getpw(3) |
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getpw − Re-construct password line entry
#define
_GNU_SOURCE /* See feature_test_macros(7) */
#include <sys/types.h>
#include <pwd.h>
int getpw(uid_t uid, char *buf);
The getpw() function reconstructs the password line entry for the given user ID uid in the buffer buf. The returned buffer contains a line of format
name:passwd:uid:gid:gecos:dir:shell
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 getpw() function returns 0 on success; on error, it returns −1, and errno is set to indicate the error.
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EINVAL |
buf is NULL. |
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ENOENT |
No user corresponding to uid. |
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ENOMEM |
Insufficient memory to allocate passwd structure. |
/etc/passwd
password database file
SVr2.
The getpw() function is dangerous as it may overflow the provided buffer buf. It is obsoleted by getpwuid(3).
endpwent(3), fgetpwent(3), getpwent(3), getpwnam(3), getpwuid(3), putpwent(3), setpwent(3), passwd(5)
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
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getpw(3) | |