libpwdgrp: make it coexist with <pwd.h>, <grp.h> and <shadow.h>.
allows to get rid of hacks in libbb.h (extra declaration of setgroups - now it comes from grp.h as intended).
This commit is contained in:
Denis Vlasenko
parent
f1980f67d3
commit
ee5dce3365
@ -21,21 +21,17 @@
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* POSIX Standard: 9.2.1 Group Database Access <grp.h>
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*/
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#ifndef _GRP_H
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#define _GRP_H 1
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#ifndef BB_GRP_H
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#define BB_GRP_H 1
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#if __GNUC_PREREQ(4,1)
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# pragma GCC visibility push(hidden)
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#endif
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/* The group structure. */
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struct group {
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char *gr_name; /* Group name. */
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char *gr_passwd; /* Password. */
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gid_t gr_gid; /* Group ID. */
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char **gr_mem; /* Member list. */
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};
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/* This file is #included after #include <grp.h>
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* We will use libc-defined structures, but will #define finction names
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* so that function calls are directed to bb_internal_XXX replacements
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*/
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#define setgrent bb_internal_setgrent
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#define endgrent bb_internal_endgrent
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@ -53,9 +49,7 @@ struct group {
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/* All function names below should be remapped by #defines above
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* in order to not collide with libc names.
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* In theory it isn't necessary, but I saw weird interactions at link time.
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* Let's play safe */
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* in order to not collide with libc names. */
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/* Rewind the group-file stream. */
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@ -71,14 +65,14 @@ extern struct group *getgrent(void);
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extern struct group *fgetgrent(FILE *__stream);
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/* Write the given entry onto the given stream. */
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extern int putgrent(__const struct group *__restrict __p,
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extern int putgrent(const struct group *__restrict __p,
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FILE *__restrict __f);
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/* Search for an entry with a matching group ID. */
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extern struct group *getgrgid(gid_t __gid);
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/* Search for an entry with a matching group name. */
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extern struct group *getgrnam(__const char *__name);
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extern struct group *getgrnam(const char *__name);
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/* Reentrant versions of some of the functions above.
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@ -98,7 +92,7 @@ extern int getgrgid_r(gid_t __gid, struct group *__restrict __resultbuf,
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struct group **__restrict __result);
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/* Search for an entry with a matching group name. */
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extern int getgrnam_r(__const char *__restrict __name,
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extern int getgrnam_r(const char *__restrict __name,
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struct group *__restrict __resultbuf,
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char *__restrict __buffer, size_t __buflen,
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struct group **__restrict __result);
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@ -113,13 +107,13 @@ extern int fgetgrent_r(FILE *__restrict __stream,
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/* Store at most *NGROUPS members of the group set for USER into
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*GROUPS. Also include GROUP. The actual number of groups found is
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returned in *NGROUPS. Return -1 if the if *NGROUPS is too small. */
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extern int getgrouplist(__const char *__user, gid_t __group,
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extern int getgrouplist(const char *__user, gid_t __group,
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gid_t *__groups, int *__ngroups);
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/* Initialize the group set for the current user
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by reading the group database and using all groups
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of which USER is a member. Also include GROUP. */
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extern int initgroups(__const char *__user, gid_t __group);
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extern int initgroups(const char *__user, gid_t __group);
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#if __GNUC_PREREQ(4,1)
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# pragma GCC visibility pop
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@ -69,21 +69,15 @@
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#include <dmalloc.h>
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#endif
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#if !ENABLE_USE_BB_PWD_GRP
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# include <pwd.h>
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# include <grp.h>
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#endif
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#include <pwd.h>
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#include <grp.h>
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#if ENABLE_FEATURE_SHADOWPASSWDS
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# if !ENABLE_USE_BB_SHADOW
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# include <shadow.h>
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# endif
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#endif
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/* Some libc's forget to declare these, do it ourself */
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extern char **environ;
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/* Set the group set for the current user to GROUPS (N of them). */
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int setgroups(size_t n, const gid_t *groups);
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#if defined(__GLIBC__) && __GLIBC__ < 2
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int vdprintf(int d, const char *format, va_list ap);
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#endif
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@ -21,24 +21,17 @@
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* POSIX Standard: 9.2.2 User Database Access <pwd.h>
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*/
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#ifndef _PWD_H
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#define _PWD_H 1
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#ifndef BB_PWD_H
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#define BB_PWD_H 1
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#if __GNUC_PREREQ(4,1)
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# pragma GCC visibility push(hidden)
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#endif
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/* The passwd structure. */
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struct passwd {
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char *pw_name; /* Username. */
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char *pw_passwd; /* Password. */
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uid_t pw_uid; /* User ID. */
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gid_t pw_gid; /* Group ID. */
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char *pw_gecos; /* Real name. */
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char *pw_dir; /* Home directory. */
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char *pw_shell; /* Shell program. */
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};
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/* This file is #included after #include <pwd.h>
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* We will use libc-defined structures, but will #define finction names
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* so that function calls are directed to bb_internal_XXX replacements
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*/
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#define setpwent bb_internal_setpwent
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#define endpwent bb_internal_endpwent
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@ -51,13 +44,11 @@ struct passwd {
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#define getpwuid_r bb_internal_getpwuid_r
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#define getpwnam_r bb_internal_getpwnam_r
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#define fgetpwent_r bb_internal_fgetpwent_r
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#define getpw bb_internal_getpw
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//#define getpw bb_internal_getpw
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/* All function names below should be remapped by #defines above
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* in order to not collide with libc names.
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* In theory it isn't necessary, but I saw weird interactions at link time.
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* Let's play safe */
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* in order to not collide with libc names. */
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/* Rewind the password-file stream. */
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@ -73,14 +64,14 @@ extern struct passwd *getpwent(void);
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extern struct passwd *fgetpwent(FILE *__stream);
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/* Write the given entry onto the given stream. */
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extern int putpwent(__const struct passwd *__restrict __p,
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extern int putpwent(const struct passwd *__restrict __p,
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FILE *__restrict __f);
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/* Search for an entry with a matching user ID. */
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extern struct passwd *getpwuid(uid_t __uid);
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/* Search for an entry with a matching username. */
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extern struct passwd *getpwnam(__const char *__name);
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extern struct passwd *getpwnam(const char *__name);
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/* Reentrant versions of some of the functions above.
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@ -99,7 +90,7 @@ extern int getpwuid_r(uid_t __uid,
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char *__restrict __buffer, size_t __buflen,
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struct passwd **__restrict __result);
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extern int getpwnam_r(__const char *__restrict __name,
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extern int getpwnam_r(const char *__restrict __name,
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struct passwd *__restrict __resultbuf,
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char *__restrict __buffer, size_t __buflen,
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struct passwd **__restrict __result);
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@ -114,7 +105,7 @@ extern int fgetpwent_r(FILE *__restrict __stream,
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/* Re-construct the password-file line for the given uid
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in the given buffer. This knows the format that the caller
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will expect, but this need not be the format of the password file. */
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extern int getpw(uid_t __uid, char *__buffer);
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/* UNUSED extern int getpw(uid_t __uid, char *__buffer); */
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#if __GNUC_PREREQ(4,1)
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# pragma GCC visibility pop
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@ -4,8 +4,8 @@
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* Licensed under the GPL-2 or later.
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*/
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#ifndef _BB_RTC_H_
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#define _BB_RTC_H_
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#ifndef BB_RTC_H
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#define BB_RTC_H
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#include "libbb.h"
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@ -19,32 +19,23 @@
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/* Declaration of types and functions for shadow password suite */
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#ifndef _SHADOW_H
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#define _SHADOW_H 1
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#ifndef BB_SHADOW_H
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#define BB_SHADOW_H 1
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#if __GNUC_PREREQ(4,1)
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# pragma GCC visibility push(hidden)
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#endif
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/* This file is #included after #include <shadow.h>
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* We will use libc-defined structures, but will #define finction names
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* so that function calls are directed to bb_internal_XXX replacements
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*/
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/* Paths to the user database files */
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#ifndef _PATH_SHADOW
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#define _PATH_SHADOW "/etc/shadow"
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#endif
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/* Structure of the password file */
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struct spwd {
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char *sp_namp; /* Login name */
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char *sp_pwdp; /* Encrypted password */
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long sp_lstchg; /* Date of last change */
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long sp_min; /* Minimum number of days between changes */
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long sp_max; /* Maximum number of days between changes */
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long sp_warn; /* Number of days to warn user to change the password */
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long sp_inact; /* Number of days the account may be inactive */
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long sp_expire; /* Number of days since 1970-01-01 until account expires */
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unsigned long sp_flag; /* Reserved */
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};
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#define setspent bb_internal_setspent
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#define endspent bb_internal_endspent
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#define getspent bb_internal_getspent
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@ -61,9 +52,7 @@ struct spwd {
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/* All function names below should be remapped by #defines above
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* in order to not collide with libc names.
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* In theory it isn't necessary, but I saw weird interactions at link time.
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* Let's play safe */
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* in order to not collide with libc names. */
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/* Open database for reading */
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@ -76,26 +65,26 @@ extern void endspent(void);
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extern struct spwd *getspent(void);
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/* Get shadow entry matching NAME */
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extern struct spwd *getspnam(__const char *__name);
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extern struct spwd *getspnam(const char *__name);
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/* Read shadow entry from STRING */
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extern struct spwd *sgetspent(__const char *__string);
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extern struct spwd *sgetspent(const char *__string);
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/* Read next shadow entry from STREAM */
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extern struct spwd *fgetspent(FILE *__stream);
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/* Write line containing shadow password entry to stream */
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extern int putspent(__const struct spwd *__p, FILE *__stream);
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extern int putspent(const struct spwd *__p, FILE *__stream);
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/* Reentrant versions of some of the functions above */
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extern int getspent_r(struct spwd *__result_buf, char *__buffer,
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size_t __buflen, struct spwd **__result);
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extern int getspnam_r(__const char *__name, struct spwd *__result_buf,
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extern int getspnam_r(const char *__name, struct spwd *__result_buf,
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char *__buffer, size_t __buflen,
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struct spwd **__result);
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extern int sgetspent_r(__const char *__string, struct spwd *__result_buf,
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extern int sgetspent_r(const char *__string, struct spwd *__result_buf,
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char *__buffer, size_t __buflen,
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struct spwd **__result);
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@ -396,6 +396,7 @@ struct spwd *getspnam(const char *name)
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}
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#endif
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#ifdef THIS_ONE_IS_UNUSED
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/* This one doesn't use static buffers */
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int getpw(uid_t uid, char *buf)
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{
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@ -419,6 +420,7 @@ int getpw(uid_t uid, char *buf)
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return -1;
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}
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#endif
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/**********************************************************************/
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