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-rw-r--r--source3/lib/substitute.c1
-rw-r--r--source3/lib/username.c34
-rw-r--r--source3/lib/util_pw.c134
3 files changed, 140 insertions, 29 deletions
diff --git a/source3/lib/substitute.c b/source3/lib/substitute.c
index 5a2bc1d890..c02ec9556a 100644
--- a/source3/lib/substitute.c
+++ b/source3/lib/substitute.c
@@ -92,7 +92,6 @@ static size_t expand_env_var(char *p, int len)
static char *automount_path(const char *user_name)
{
static pstring server_path;
- struct passwd *pass;
/* use the passwd entry as the default */
/* this will be the default if WITH_AUTOMOUNT is not used or fails */
diff --git a/source3/lib/username.c b/source3/lib/username.c
index 81408f4569..9541ebeb08 100644
--- a/source3/lib/username.c
+++ b/source3/lib/username.c
@@ -205,29 +205,7 @@ BOOL map_username(char *user)
}
/****************************************************************************
- Get_Pwnam wrapper
-****************************************************************************/
-
-static struct passwd *_Get_Pwnam(const char *s)
-{
- struct passwd *ret;
-
- ret = sys_getpwnam(s);
- if (ret) {
-#ifdef HAVE_GETPWANAM
- struct passwd_adjunct *pwret;
- pwret = getpwanam(s);
- if (pwret && pwret->pwa_passwd)
- pstrcpy(ret->pw_passwd,pwret->pwa_passwd);
-#endif
- }
-
- return(ret);
-}
-
-
-/****************************************************************************
- * A wrapper for getpwnam(). The following variations are tried:
+ * A wrapper for sys_getpwnam(). The following variations are tried:
* - as transmitted
* - in all lower case if this differs from transmitted
* - in all upper case if this differs from transmitted
@@ -248,23 +226,23 @@ struct passwd *Get_Pwnam_internals(const char *user, char *user2)
common case on UNIX systems */
strlower(user2);
DEBUG(5,("Trying _Get_Pwnam(), username as lowercase is %s\n",user2));
- ret = _Get_Pwnam(user2);
+ ret = sys_getpwnam(user2);
if(ret)
goto done;
/* Try as given, if username wasn't originally lowercase */
if(strcmp(user,user2) != 0) {
DEBUG(5,("Trying _Get_Pwnam(), username as given is %s\n",user));
- ret = _Get_Pwnam(user);
+ ret = sys_getpwnam(user);
if(ret)
goto done;
- }
+ }
/* Try as uppercase, if username wasn't originally uppercase */
strupper(user2);
if(strcmp(user,user2) != 0) {
DEBUG(5,("Trying _Get_Pwnam(), username as uppercase is %s\n",user2));
- ret = _Get_Pwnam(user2);
+ ret = sys_getpwnam(user2);
if(ret)
goto done;
}
@@ -272,7 +250,7 @@ struct passwd *Get_Pwnam_internals(const char *user, char *user2)
/* Try all combinations up to usernamelevel */
strlower(user2);
DEBUG(5,("Checking combinations of %d uppercase letters in %s\n",lp_usernamelevel(),user2));
- ret = uname_string_combinations(user2, _Get_Pwnam, lp_usernamelevel());
+ ret = uname_string_combinations(user2, sys_getpwnam, lp_usernamelevel());
done:
DEBUG(5,("Get_Pwnam %s find a valid username!\n",ret ? "did":"didn't"));
diff --git a/source3/lib/util_pw.c b/source3/lib/util_pw.c
new file mode 100644
index 0000000000..3367a6cdc0
--- /dev/null
+++ b/source3/lib/util_pw.c
@@ -0,0 +1,134 @@
+/*
+ Unix SMB/Netbios implementation.
+ Version 3.0.
+
+ Safe versions of getpw* calls
+
+ Copyright (C) Andrew Bartlett 2002
+
+ 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 of the License, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+struct passwd *make_modifyable_passwd(const struct passwd *from)
+{
+ struct passwd *ret = smb_xmalloc(sizeof(*ret));
+/* This is the assumed shape of the members by certain parts of the code...
+ fstring pw_name;
+ fstring pw_passwd;
+ fstring pw_gecos;
+ pstring pw_dir;
+ pstring pw_shell;
+*/
+ char *pw_name = smb_xmalloc(sizeof(fstring));
+ char *pw_passwd = smb_xmalloc(sizeof(fstring));
+ char *pw_gecos = smb_xmalloc(sizeof(fstring));
+ char *pw_dir = smb_xmalloc(sizeof(pstring));
+ char *pw_shell = smb_xmalloc(sizeof(pstring));
+
+ ZERO_STRUCTP(ret);
+
+ /*
+ * Now point the struct's members as the
+ * newly allocated buffers:
+ */
+
+ ret->pw_name = pw_name;
+ fstrcpy(ret->pw_name, from->pw_name);
+
+ ret->pw_passwd = pw_passwd;
+ fstrcpy(ret->pw_passwd, from->pw_passwd);
+
+ ret->pw_uid = from->pw_uid;
+ ret->pw_gid = from->pw_gid;
+
+ ret->pw_gecos = pw_gecos;
+ fstrcpy(ret->pw_gecos, from->pw_gecos);
+
+ ret->pw_dir = pw_dir;
+ pstrcpy(ret->pw_dir, from->pw_dir);
+
+ ret->pw_shell = pw_shell;
+ pstrcpy(ret->pw_shell, from->pw_shell);
+
+ return ret;
+}
+
+static struct passwd *alloc_copy_passwd(const struct passwd *from)
+{
+ struct passwd *ret = smb_xmalloc(sizeof(*ret));
+ ZERO_STRUCTP(ret);
+ ret->pw_name = smb_xstrdup(from->pw_name);
+ ret->pw_passwd = smb_xstrdup(from->pw_passwd);
+ ret->pw_uid = from->pw_uid;
+ ret->pw_gid = from->pw_gid;
+ ret->pw_gecos = smb_xstrdup(from->pw_gecos);
+ ret->pw_dir = smb_xstrdup(from->pw_dir);
+ ret->pw_shell = smb_xstrdup(from->pw_shell);
+ return ret;
+}
+
+void passwd_free (struct passwd **buf)
+{
+ if (!*buf) {
+ DEBUG(0, ("attempted double-free of allocated passwd\n"));
+ return;
+ }
+
+ SAFE_FREE((*buf)->pw_name);
+ SAFE_FREE((*buf)->pw_passwd);
+ SAFE_FREE((*buf)->pw_gecos);
+ SAFE_FREE((*buf)->pw_dir);
+ SAFE_FREE((*buf)->pw_shell);
+
+ SAFE_FREE(*buf);
+}
+
+struct passwd *getpwnam_alloc(const char *name)
+{
+ struct passwd *temp;
+
+ temp = getpwnam(name);
+
+ if (!temp) {
+#if 0
+ if (errno == ENOMEM) {
+ /* what now? */
+ }
+#endif
+ return NULL;
+ }
+
+ return alloc_copy_passwd(temp);
+}
+
+struct passwd *getpwuid_alloc(uid_t uid)
+{
+ struct passwd *temp;
+
+ temp = getpwuid(uid);
+
+ if (!temp) {
+#if 0
+ if (errno == ENOMEM) {
+ /* what now? */
+ }
+#endif
+ return NULL;
+ }
+
+ return alloc_copy_passwd(temp);
+}
generated by cgit (git 2.34.1) at 2024-07-24 16:21:11 +0000