getpwent_r(3)              Library Functions Manual              getpwent_r(3)

<?><?><?><?><?><?><?><?><?><?><?><?>
       getpwent_r, fgetpwent_r - <?><?><?><?><?><?><?><?> <?><?><?><?><?><?>
       <?><?> <?><?><?><?><?> <?><?><?><?><?><?><?>
       (<?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?>)

<?><?><?><?><?><?><?><?><?><?>
       Standard C library (libc, -lc)

<?><?><?><?><?>
       #include <pwd.h>

       int getpwent_r(struct passwd *restrict pwbuf,
                      char buf[restrict .size], size_t size,
                      struct passwd **restrict pwbufp);
       int fgetpwent_r(FILE *restrict stream, struct passwd *restrict pwbuf,
                      char buf[restrict .size], size_t size,
                      struct passwd **restrict pwbufp);

   <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
   <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?> glibc
   (<?><?>. feature_test_macros(7)):

       getpwent_r(),
           <?><?><?><?><?><?><?> <?> glibc 2.19:
               _DEFAULT_SOURCE
           <?> glibc 2.19 <?> <?><?><?><?><?><?>:
               _BSD_SOURCE || _SVID_SOURCE

       fgetpwent_r():
           <?><?><?><?><?><?><?> <?> glibc 2.19:
               _DEFAULT_SOURCE
           glibc 2.19 <?> <?><?><?><?><?><?>:
               _SVID_SOURCE

<?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> getpwent_r() <?> fgetpwent_r()
       <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> getpwent(3) <?> fgetpwent(3).
       <?><?><?><?><?><?> <?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?> <?><?><?><?><?><?>,
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> setpwent(3).
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?><?><?><?><?><?><?>
       <?><?> <?><?><?><?><?><?> stream.

       <?><?><?><?><?><?><?><?><?> passwd <?><?><?><?><?><?><?><?><?><?> <?>
       <pwd.h> <?><?><?><?><?> <?><?><?><?><?><?><?>:

           struct passwd {
               char   *pw_name;       /* <?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?> */
               char   *pw_passwd;     /* <?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?> */
               uid_t   pw_uid;        /* <?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?> */
               gid_t   pw_gid;        /* <?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?> */
               char   *pw_gecos;      /* <?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?><?><?><?><?><?><?><?> */
               char   *pw_dir;        /* <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> */
               char   *pw_shell;      /* <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> */
           };

       <?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?> passwd(5).

       The nonreentrant functions return a pointer to static storage, where
       this static storage contains further pointers to user name, password,
       gecos field, home directory and shell.  The reentrant functions
       described here return all of that in caller-provided buffers.  First of
       all there is the buffer pwbuf that can hold a struct passwd.  And next
       the buffer buf of size size that can hold additional strings.  The
       result of these functions, the struct passwd read from the stream, is
       stored in the provided buffer *pwbuf, and a pointer to this struct
       passwd is returned in *pwbufp.

<?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?> 0 <?>
       *pwbufp <?><?><?><?><?><?><?><?><?> <?><?> struct passwd. <?><?><?>
       <?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?> <?> *pwbufp <?><?><?><?><?>
       NULL.

<?><?><?><?><?><?>
       ENOENT <?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?>.

       ERANGE <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?> <?>
              <?><?><?><?><?><?>. <?><?><?><?><?><?><?><?><?><?> <?><?><?>
              <?><?><?> <?> <?><?><?><?><?><?><?> <?><?><?><?><?><?><?>.

<?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?> attributes(7).

       +----------------------------+----------------------------------------------------------+--------------------------+
       |<?><?><?><?><?><?><?><?><?> | <?><?><?><?><?><?><?>                                    | <?><?><?><?><?><?><?><?> |
       +----------------------------+----------------------------------------------------------+--------------------------+
       |getpwent_r()                | <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?> | MT-Unsafe race:pwent     |
       |                            |                                                          | locale                   |
       +----------------------------+----------------------------------------------------------+--------------------------+
       |fgetpwent_r()               | <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?> | MT-Safe                  |
       +----------------------------+----------------------------------------------------------+--------------------------+
       <?> <?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?> pwent <?> race:pwent <?><?><?><?><?><?><?><?>,
       <?><?><?> <?><?><?><?> <?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?> <?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?> setpwent(),
       getpwent(), endpwent() <?><?><?> getpwent_r(), <?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?>
       <?><?><?><?><?><?>.

<?><?><?><?><?><?>
       Other systems use the prototype

           struct passwd *
           getpwent_r(struct passwd *pwd, char buf[.size], int size);

       <?><?><?>, <?><?><?><?><?>,

           int
           getpwent_r(struct passwd *pwd, char buf[.size], int size,
                      FILE **pw_fp);

<?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?>.

<?><?><?><?><?><?><?>
       <?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?> <?>
       <?><?><?><?><?>, <?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?> POSIX <?><?><?><?><?><?><?> <?><?><?><?>
       getpwnam_r(3).

<?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> getpwent_r() <?><?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?>, <?><?><?> <?><?><?>
       <?><?><?> <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?> <?><?><?><?><?><?> <?> <?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?> <?><?><?><?><?><?>.

<?><?><?><?><?><?><?>
       #define _GNU_SOURCE
       #include <pwd.h>
       #include <stdint.h>
       #include <stdio.h>
       #include <stdlib.h>

       #define BUFLEN 4096

       int
       main(void)
       {
           struct passwd pw;
           struct passwd *pwp;
           char buf[BUFLEN];
           int i;

           setpwent();
           while (1) {
               i = getpwent_r(&pw, buf, sizeof(buf), &pwp);
               if (i)
                   break;
               printf("%s (%jd)\tHOME %s\tSHELL %s\n", pwp->pw_name,
                      (intmax_t) pwp->pw_uid, pwp->pw_dir, pwp->pw_shell);
           }
           endpwent();
           exit(EXIT_SUCCESS);
       }

<?><?><?><?><?><?><?><?> <?><?><?><?><?>
       fgetpwent(3), getpw(3), getpwent(3), getpwnam(3), getpwuid(3),
       putpwent(3), passwd(5)

<?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?>(<?>) Azamat Hackimov
       <azamat.hackimov@gmail.com>, Dmitry Bolkhovskikh <d20052005@yandex.ru>,
       Vladislav <ivladislavefimov@gmail.com>, Yuri Kozlov
       <yuray@komyakino.ru>, <?><?><?><?> <?><?><?><?><?><?>
       <pavia00@gmail.com> <?> Kirill Rekhov <krekhov.dev@gmail.com>

       <?><?><?><?> <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?>; <?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?><?><?><?><?> <?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> GNU (GNU General Public License - GPL,
       <https://www.gnu.org/licenses/gpl-3.0.html> <?><?><?><?><?><?> 3
       <?><?><?> <?><?><?><?><?> <?><?><?><?><?><?><?>) <?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?>, <?><?> <?><?><?> <?><?><?><?><?>-<?><?><?><?>
       <?><?><?><?><?><?><?><?>.

       <?><?><?><?> <?><?> <?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?>-<?><?><?><?> <?><?><?><?><?><?> <?>
       <?><?><?><?><?><?><?><?> <?><?><?><?> <?><?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?><?><?><?>,
       <?><?><?><?><?><?><?><?> <?><?> <?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>(<?><?>) <?><?> <?><?><?>(<?><?>)
       <?><?><?><?><?><?>(<?><?>) <?><?><?><?><?><?><?><?><?><?><?>
       <?><?><?><?><?> <?><?><?> <?><?> <?><?><?><?><?><?> <?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?><?><?><?>
       <<debian-l10n-russian@lists.debian.org>>.

Linux man-pages 6.12  24 <?><?><?><?><?><?><?> 2024 <?>.         getpwent_r(3)