1 files changed, 83 insertions, 0 deletions
diff --git a/src/util/sss_regexp.h b/src/util/sss_regexp.h
new file mode 100644
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+++ b/src/util/sss_regexp.h
@@ -0,0 +1,83 @@
+/*
+    SSSD
+
+    Authors:
+        Tomas Halman <thalman@redhat.com>
+
+    Copyright (C) 2018 Red Hat
+
+    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_REGEXP_H_
+#define SSS_REGEXP_H_
+
+#include <stddef.h>
+#include <talloc.h>
+#include "config.h"
+
+/* regexp class */
+typedef struct _sss_regexp_t sss_regexp_t;
+
+#include <pcre2.h>
+#define SSS_REGEXP_ERROR_NOMATCH  PCRE2_ERROR_NOMATCH
+#define SSS_REGEXP_ERROR_NOMEMORY PCRE2_ERROR_NOMEMORY
+#define SSS_REGEXP_NOTEMPTY       PCRE2_NOTEMPTY
+#define SSS_REGEXP_EXTENDED       PCRE2_EXTENDED
+#define SSS_REGEXP_DUPNAMES       PCRE2_DUPNAMES
+
+/* how to use sss_regexp:
+ *
+ *  int err;
+ *  const char *found;
+ *
+ *  sss_regexp_t *re
+ *  err = sss_regexp_new (NULL, "#(?P<myname>.+)#", 0, &re);
+ *  if (err != EOK) {
+ *      goto fail;
+ *  }
+ *  int rc = sss_regexp_match (re,
+ *                             "a#findthis#b",
+ *                             0,
+ *                             0);
+ *  if (rc != 0) { ... }
+ *  rc = sss_regexp_get_named_substring (re, "myname", &found);
+ *  ...
+ *  talloc_free (re);
+ */
+
+/*
+ * Create new compiled regexp object.
+ */
+int sss_regexp_new(TALLOC_CTX *mem_ctx,
+                   const char *pattern,
+                   int options,
+                   sss_regexp_t **self_p);
+
+/*
+ * Search subject with previously created regexp.
+ */
+int sss_regexp_match(sss_regexp_t *self,
+                     const char *subject,
+                     int startoffset,
+                     int options);
+
+/*
+ * Get named substring from last sss_regexp_match.
+ */
+int sss_regexp_get_named_substring(sss_regexp_t *self,
+                                   const char *name,
+                                   const char **value);
+
+#endif /* SSS_REGEXP_H_ */