/* idcache.c -- map user and group IDs, cached for speed
- Copyright (C) 1985, 1988, 1989, 1990, 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1985, 1988, 1989, 1990, 1997, 1998, 2003 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
#endif
#include <stdio.h>
+#include <string.h>
#include <sys/types.h>
#include <pwd.h>
#include <grp.h>
-#if STDC_HEADERS || HAVE_STRING_H
-# include <string.h>
-#else
-# include <strings.h>
-#endif
-
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
+#include "xalloc.h"
+
#ifndef _POSIX_VERSION
struct passwd *getpwuid ();
struct passwd *getpwnam ();
struct group *getgrnam ();
#endif
-char *xmalloc ();
-char *xstrdup ();
+#ifdef __DJGPP__
+static char digits[] = "0123456789";
+#endif
struct userid
{
return tail->name;
pwent = getpwuid (uid);
- tail = (struct userid *) xmalloc (sizeof (struct userid));
+ tail = xmalloc (sizeof (struct userid));
tail->id.u = uid;
tail->name = pwent ? xstrdup (pwent->pw_name) : NULL;
return 0;
pwent = getpwnam (user);
+#ifdef __DJGPP__
+ /* We need to pretend to be the user USER, to make
+ pwd functions know about an arbitrary user name. */
+ if (!pwent && strspn (user, digits) < strlen (user))
+ {
+ setenv ("USER", user, 1);
+ pwent = getpwnam (user); /* now it will succeed */
+ }
+#endif
- tail = (struct userid *) xmalloc (sizeof (struct userid));
+ tail = xmalloc (sizeof (struct userid));
tail->name = xstrdup (user);
/* Add to the head of the list, so most recently used is first. */
return tail->name;
grent = getgrgid (gid);
- tail = (struct userid *) xmalloc (sizeof (struct userid));
+ tail = xmalloc (sizeof (struct userid));
tail->id.g = gid;
tail->name = grent ? xstrdup (grent->gr_name) : NULL;
return 0;
grent = getgrnam (group);
+#ifdef __DJGPP__
+ /* We need to pretend to belong to group GROUP, to make
+ grp functions know about any arbitrary group name. */
+ if (!grent && strspn (group, digits) < strlen (group))
+ {
+ setenv ("GROUP", group, 1);
+ grent = getgrnam (group); /* now it will succeed */
+ }
+#endif
- tail = (struct userid *) xmalloc (sizeof (struct userid));
+ tail = xmalloc (sizeof (struct userid));
tail->name = xstrdup (group);
/* Add to the head of the list, so most recently used is first. */