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-rw-r--r--lib/userspec.c304
1 files changed, 0 insertions, 304 deletions
diff --git a/lib/userspec.c b/lib/userspec.c
deleted file mode 100644
index fd2c941f8..000000000
--- a/lib/userspec.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/* userspec.c -- Parse a user and group string.
- Copyright (C) 1989-1992, 1997-1998, 2000, 2002-2006 Free Software
- Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
-
-/* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-/* Specification. */
-#include "userspec.h"
-
-#include <stdbool.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <pwd.h>
-#include <grp.h>
-
-#if HAVE_SYS_PARAM_H
-# include <sys/param.h>
-#endif
-
-#include <limits.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <unistd.h>
-
-#include "intprops.h"
-#include "inttostr.h"
-#include "strdup.h"
-#include "xalloc.h"
-#include "xstrtol.h"
-
-#include "gettext.h"
-#define _(msgid) gettext (msgid)
-#define N_(msgid) msgid
-
-#ifndef HAVE_ENDGRENT
-# define endgrent() ((void) 0)
-#endif
-
-#ifndef HAVE_ENDPWENT
-# define endpwent() ((void) 0)
-#endif
-
-#ifndef UID_T_MAX
-# define UID_T_MAX TYPE_MAXIMUM (uid_t)
-#endif
-
-#ifndef GID_T_MAX
-# define GID_T_MAX TYPE_MAXIMUM (gid_t)
-#endif
-
-/* MAXUID may come from limits.h or sys/params.h. */
-#ifndef MAXUID
-# define MAXUID UID_T_MAX
-#endif
-#ifndef MAXGID
-# define MAXGID GID_T_MAX
-#endif
-
-/* ISDIGIT differs from isdigit, as follows:
- - Its arg may be any int or unsigned int; it need not be an unsigned char
- or EOF.
- - It's typically faster.
- POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to
- isdigit unless it's important to use the locale's definition
- of `digit' even when the host does not conform to POSIX. */
-#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9)
-
-#ifdef __DJGPP__
-
-/* Return true if STR represents an unsigned decimal integer. */
-
-static bool
-is_number (const char *str)
-{
- do
- {
- if (!ISDIGIT (*str))
- return false;
- }
- while (*++str);
-
- return true;
-}
-#endif
-
-static char const *
-parse_with_separator (char const *spec, char const *separator,
- uid_t *uid, gid_t *gid,
- char **username, char **groupname)
-{
- static const char *E_invalid_user = N_("invalid user");
- static const char *E_invalid_group = N_("invalid group");
- static const char *E_bad_spec = N_("invalid spec");
-
- const char *error_msg;
- struct passwd *pwd;
- struct group *grp;
- char *u;
- char const *g;
- char *gname = NULL;
- uid_t unum = *uid;
- gid_t gnum = *gid;
-
- error_msg = NULL;
- *username = *groupname = NULL;
-
- /* Set U and G to nonzero length strings corresponding to user and
- group specifiers or to NULL. If U is not NULL, it is a newly
- allocated string. */
-
- u = NULL;
- if (separator == NULL)
- {
- if (*spec)
- u = xstrdup (spec);
- }
- else
- {
- size_t ulen = separator - spec;
- if (ulen != 0)
- {
- u = xmemdup (spec, ulen + 1);
- u[ulen] = '\0';
- }
- }
-
- g = (separator == NULL || *(separator + 1) == '\0'
- ? NULL
- : separator + 1);
-
-#ifdef __DJGPP__
- /* Pretend that we are the user U whose group is G. This makes
- pwd and grp functions ``know'' about the UID and GID of these. */
- if (u && !is_number (u))
- setenv ("USER", u, 1);
- if (g && !is_number (g))
- setenv ("GROUP", g, 1);
-#endif
-
- if (u != NULL)
- {
- pwd = getpwnam (u);
- if (pwd == NULL)
- {
- bool use_login_group = (separator != NULL && g == NULL);
- if (use_login_group)
- {
- /* If there is no group,
- then there may not be a trailing ":", either. */
- error_msg = E_bad_spec;
- }
- else
- {
- unsigned long int tmp;
- if (xstrtoul (u, NULL, 10, &tmp, "") == LONGINT_OK
- && tmp <= MAXUID)
- unum = tmp;
- else
- error_msg = E_invalid_user;
- }
- }
- else
- {
- unum = pwd->pw_uid;
- if (g == NULL && separator != NULL)
- {
- /* A separator was given, but a group was not specified,
- so get the login group. */
- char buf[INT_BUFSIZE_BOUND (uintmax_t)];
- gnum = pwd->pw_gid;
- grp = getgrgid (gnum);
- gname = xstrdup (grp ? grp->gr_name : umaxtostr (gnum, buf));
- endgrent ();
- }
- }
- endpwent ();
- }
-
- if (g != NULL && error_msg == NULL)
- {
- /* Explicit group. */
- grp = getgrnam (g);
- if (grp == NULL)
- {
- unsigned long int tmp;
- if (xstrtoul (g, NULL, 10, &tmp, "") == LONGINT_OK && tmp <= MAXGID)
- gnum = tmp;
- else
- error_msg = E_invalid_group;
- }
- else
- gnum = grp->gr_gid;
- endgrent (); /* Save a file descriptor. */
- gname = xstrdup (g);
- }
-
- if (error_msg == NULL)
- {
- *uid = unum;
- *gid = gnum;
- *username = u;
- *groupname = gname;
- u = NULL;
- }
- else
- free (gname);
-
- free (u);
- return _(error_msg);
-}
-
-/* Extract from SPEC, which has the form "[user][:.][group]",
- a USERNAME, UID U, GROUPNAME, and GID G.
- Either user or group, or both, must be present.
- If the group is omitted but the separator is given,
- use the given user's login group.
- If SPEC contains a `:', then use that as the separator, ignoring
- any `.'s. If there is no `:', but there is a `.', then first look
- up the entire SPEC as a login name. If that look-up fails, then
- try again interpreting the `.' as a separator.
-
- USERNAME and GROUPNAME will be in newly malloc'd memory.
- Either one might be NULL instead, indicating that it was not
- given and the corresponding numeric ID was left unchanged.
-
- Return NULL if successful, a static error message string if not. */
-
-char const *
-parse_user_spec (char const *spec, uid_t *uid, gid_t *gid,
- char **username, char **groupname)
-{
- char const *colon = strchr (spec, ':');
- char const *error_msg =
- parse_with_separator (spec, colon, uid, gid, username, groupname);
-
- if (!colon && error_msg)
- {
- /* If there's no colon but there is a dot, and if looking up the
- whole spec failed (i.e., the spec is not a owner name that
- includes a dot), then try again, but interpret the dot as a
- separator. This is a compatible extension to POSIX, since
- the POSIX-required behavior is always tried first. */
-
- char const *dot = strchr (spec, '.');
- if (dot
- && ! parse_with_separator (spec, dot, uid, gid, username, groupname))
- error_msg = NULL;
- }
-
- return error_msg;
-}
-
-#ifdef TEST
-
-# define NULL_CHECK(s) ((s) == NULL ? "(null)" : (s))
-
-int
-main (int argc, char **argv)
-{
- int i;
-
- for (i = 1; i < argc; i++)
- {
- const char *e;
- char *username, *groupname;
- uid_t uid;
- gid_t gid;
- char *tmp;
-
- tmp = strdup (argv[i]);
- e = parse_user_spec (tmp, &uid, &gid, &username, &groupname);
- free (tmp);
- printf ("%s: %lu %lu %s %s %s\n",
- argv[i],
- (unsigned long int) uid,
- (unsigned long int) gid,
- NULL_CHECK (username),
- NULL_CHECK (groupname),
- NULL_CHECK (e));
- }
-
- exit (0);
-}
-
-#endif
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