1 /* vi: set sw=4 ts=4: */
2 /* Copyright (C) 1991,92,95,96,97,98,99,2001 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 * POSIX Standard: 9.2.2 User Database Access <pwd.h>
27 #if __GNUC_PREREQ(4,1)
28 # pragma GCC visibility push(hidden)
31 /* The passwd structure. */
33 char *pw_name; /* Username. */
34 char *pw_passwd; /* Password. */
35 uid_t pw_uid; /* User ID. */
36 gid_t pw_gid; /* Group ID. */
37 char *pw_gecos; /* Real name. */
38 char *pw_dir; /* Home directory. */
39 char *pw_shell; /* Shell program. */
43 #define setpwent bb_internal_setpwent
44 #define endpwent bb_internal_endpwent
45 #define getpwent bb_internal_getpwent
46 #define fgetpwent bb_internal_fgetpwent
47 #define putpwent bb_internal_putpwent
48 #define getpwuid bb_internal_getpwuid
49 #define getpwnam bb_internal_getpwnam
50 #define getpwent_r bb_internal_getpwent_r
51 #define getpwuid_r bb_internal_getpwuid_r
52 #define getpwnam_r bb_internal_getpwnam_r
53 #define fgetpwent_r bb_internal_fgetpwent_r
54 #define getpw bb_internal_getpw
57 /* All function names below should be remapped by #defines above
58 * in order to not collide with libc names.
59 * In theory it isn't necessary, but I saw weird interactions at link time.
63 /* Rewind the password-file stream. */
64 extern void setpwent(void);
66 /* Close the password-file stream. */
67 extern void endpwent(void);
69 /* Read an entry from the password-file stream, opening it if necessary. */
70 extern struct passwd *getpwent(void);
72 /* Read an entry from STREAM. */
73 extern struct passwd *fgetpwent(FILE *__stream);
75 /* Write the given entry onto the given stream. */
76 extern int putpwent(__const struct passwd *__restrict __p,
77 FILE *__restrict __f);
79 /* Search for an entry with a matching user ID. */
80 extern struct passwd *getpwuid(uid_t __uid);
82 /* Search for an entry with a matching username. */
83 extern struct passwd *getpwnam(__const char *__name);
85 /* Reentrant versions of some of the functions above.
87 PLEASE NOTE: the `getpwent_r' function is not (yet) standardized.
88 The interface may change in later versions of this library. But
89 the interface is designed following the principals used for the
90 other reentrant functions so the chances are good this is what the
91 POSIX people would choose. */
93 extern int getpwent_r(struct passwd *__restrict __resultbuf,
94 char *__restrict __buffer, size_t __buflen,
95 struct passwd **__restrict __result);
97 extern int getpwuid_r(uid_t __uid,
98 struct passwd *__restrict __resultbuf,
99 char *__restrict __buffer, size_t __buflen,
100 struct passwd **__restrict __result);
102 extern int getpwnam_r(__const char *__restrict __name,
103 struct passwd *__restrict __resultbuf,
104 char *__restrict __buffer, size_t __buflen,
105 struct passwd **__restrict __result);
107 /* Read an entry from STREAM. This function is not standardized and
108 probably never will. */
109 extern int fgetpwent_r(FILE *__restrict __stream,
110 struct passwd *__restrict __resultbuf,
111 char *__restrict __buffer, size_t __buflen,
112 struct passwd **__restrict __result);
114 /* Re-construct the password-file line for the given uid
115 in the given buffer. This knows the format that the caller
116 will expect, but this need not be the format of the password file. */
117 extern int getpw(uid_t __uid, char *__buffer);
119 #if __GNUC_PREREQ(4,1)
120 # pragma GCC visibility pop