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authorJan Zeleny <jzeleny@redhat.com>2012-03-14 06:09:03 -0400
committerStephen Gallagher <sgallagh@redhat.com>2012-04-24 09:19:43 -0400
commit29be7d76c949b82350c7603cfd362a1fcb47eb1b (patch)
treea71b128f43a3a6c3ba6f62ca374710d2b2dde8fb /src/util
parent8ccb0de226ccb9330f5a6865de487d6f0313902d (diff)
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Moved expand_homedir_template() from NSS responder to utility code
Diffstat (limited to 'src/util')
-rw-r--r--src/util/sss_nss.c136
-rw-r--r--src/util/sss_nss.h31
2 files changed, 167 insertions, 0 deletions
diff --git a/src/util/sss_nss.c b/src/util/sss_nss.c
new file mode 100644
index 00000000..ceccda38
--- /dev/null
+++ b/src/util/sss_nss.c
@@ -0,0 +1,136 @@
+/*
+ SSSD
+
+ Utility functions related to ID information
+
+ Copyright (C) Jan Zeleny <jzeleny@redhat.com> 2012
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "util/util.h"
+#include "util/sss_nss.h"
+
+char *expand_homedir_template(TALLOC_CTX *mem_ctx, const char *template,
+ const char *username, uint32_t uid,
+ const char *domain)
+{
+ char *copy;
+ char *p;
+ char *n;
+ char *result = NULL;
+ char *res = NULL;
+ TALLOC_CTX *tmp_ctx = NULL;
+
+ if (template == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("Missing template.\n"));
+ return NULL;
+ }
+
+ tmp_ctx = talloc_new(NULL);
+ if (!tmp_ctx) return NULL;
+
+ copy = talloc_strdup(tmp_ctx, template);
+ if (copy == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_strdup failed.\n"));
+ goto done;
+ }
+
+ result = talloc_strdup(tmp_ctx, "");
+ if (result == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_strdup failed.\n"));
+ goto done;
+ }
+
+ p = copy;
+ while ( (n = strchr(p, '%')) != NULL) {
+ *n = '\0';
+ n++;
+ if ( *n == '\0' ) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("format error, single %% at the end of "
+ "the template.\n"));
+ goto done;
+ }
+ switch( *n ) {
+ case 'u':
+ if (username == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("Cannot expand user name template "
+ "because user name is empty.\n"));
+ goto done;
+ }
+ result = talloc_asprintf_append(result, "%s%s", p,
+ username);
+ break;
+
+ case 'U':
+ if (uid == 0) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("Cannot expand uid template "
+ "because uid is invalid.\n"));
+ goto done;
+ }
+ result = talloc_asprintf_append(result, "%s%d", p,
+ uid);
+ break;
+
+ case 'd':
+ if (domain == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("Cannot expand domain name "
+ "template because domain name "
+ "is empty.\n"));
+ goto done;
+ }
+ result = talloc_asprintf_append(result, "%s%s", p,
+ domain);
+ break;
+
+ case 'f':
+ if (domain == NULL || username == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("Cannot expand fully qualified "
+ "name template because domain "
+ "or user name is empty.\n"));
+ goto done;
+ }
+ result = talloc_asprintf_append(result, "%s%s@%s", p,
+ username, domain);
+ break;
+
+ case '%':
+ result = talloc_asprintf_append(result, "%s%%", p);
+ break;
+
+ default:
+ DEBUG(SSSDBG_CRIT_FAILURE, ("format error, unknown template "
+ "[%%%c].\n", *n));
+ goto done;
+ }
+
+ if (result == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_asprintf_append failed.\n"));
+ goto done;
+ }
+
+ p = n + 1;
+ }
+
+ result = talloc_asprintf_append(result, "%s", p);
+ if (result == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_asprintf_append failed.\n"));
+ goto done;
+ }
+
+ res = talloc_move(mem_ctx, &result);
+done:
+ talloc_zfree(tmp_ctx);
+ return res;
+}
diff --git a/src/util/sss_nss.h b/src/util/sss_nss.h
new file mode 100644
index 00000000..55e2b7f6
--- /dev/null
+++ b/src/util/sss_nss.h
@@ -0,0 +1,31 @@
+/*
+ SSSD
+
+ Utility functions related to ID information
+
+ Copyright (C) Jan Zeleny <jzeleny@redhat.com> 2012
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __SSS_NSS_H__
+#define __SSS_NSS_H__
+
+#include <sys/types.h>
+#include <talloc.h>
+
+char *expand_homedir_template(TALLOC_CTX *mem_ctx, const char *template,
+ const char *username, uint32_t uid,
+ const char *domain);
+#endif