1 files changed, 103 insertions, 0 deletions
diff --git a/src/lib/strbuf.h b/src/lib/strbuf.h
new file mode 100644
index 00000000..dc45a199
--- /dev/null
+++ b/src/lib/strbuf.h
@@ -0,0 +1,103 @@
+/*
+    strbuf.h - string buffer
+
+    Copyright (C) 2009  RedHat 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 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.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+#ifndef STRBUF_H
+#define STRBUF_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct strbuf
+{
+    /* Size of the allocated buffer. Always > 0. */
+    int alloc;
+    /* Length of the string, without the ending \0. */
+    int len;
+    char *buf;
+};
+
+/**
+ * Creates and initializes a new string buffer.
+ * @returns
+ * It never returns NULL. The returned pointer must be released by
+ * calling the function strbuf_free().
+ */
+struct strbuf *strbuf_new();
+
+/**
+ * Releases the memory held by the string buffer.
+ * @param strbuf
+ * If the strbuf is NULL, no operation is performed.
+ */
+void strbuf_free(struct strbuf *strbuf);
+
+/**
+ * Releases the strbuf, but not the internal buffer.  The internal
+ * string buffer is returned.  Caller is responsible to release the
+ * returned memory using free().
+ */
+char* strbuf_free_nobuf(struct strbuf *strbuf);
+
+/**
+ * The string content is set to an empty string, erasing any previous
+ * content and leaving its length at 0 characters.
+ */
+void strbuf_clear(struct strbuf *strbuf);
+
+/**
+ * The current content of the string buffer is extended by adding a
+ * character c at its end.
+ */
+struct strbuf *strbuf_append_char(struct strbuf *strbuf, char c);
+
+/**
+ * The current content of the string buffer is extended by adding a
+ * string str at its end.
+ */
+struct strbuf *strbuf_append_str(struct strbuf *strbuf,
+                                 const char *str);
+
+/**
+ * The current content of the string buffer is extended by inserting a
+ * string str at its beginning.
+ */
+struct strbuf *strbuf_prepend_str(struct strbuf *strbuf,
+                                  const char *str);
+
+/**
+ * The current content of the string buffer is extended by adding a
+ * sequence of data formatted as the format argument specifies.
+ */
+struct strbuf *strbuf_append_strf(struct strbuf *strbuf,
+                                  const char *format, ...);
+
+/**
+ * The current content of the string buffer is extended by inserting a
+ * sequence of data formatted as the format argument specifies at the
+ * buffer beginning.
+ */
+struct strbuf *strbuf_prepend_strf(struct strbuf *strbuf,
+                                   const char *format, ...);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif