summaryrefslogtreecommitdiffstats
path: root/lib/appendstr.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--lib/appendstr.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/lib/appendstr.c b/lib/appendstr.c
new file mode 100644
index 0000000..3be8bff
--- /dev/null
+++ b/lib/appendstr.c
@@ -0,0 +1,59 @@
+/* appendstr.c -- append to a dynamically allocated string
+ Copyright (C) 1994 Markus Armbruster
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Library Public License
+ as published by the Free Software Foundation; either version 2, 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; see the file docs/COPYING.LIB. If not, write
+ to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA
+ 02139, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#include <string.h>
+#include <stdarg.h>
+
+#include "xalloc.h"
+
+#include "manconfig.h"
+
+#include "appendstr.h"
+
+/* append strings to first argument, which is realloced to the correct size
+ first arg may be NULL */
+char *appendstr (char *str, ...)
+{
+ va_list ap;
+ size_t len, newlen;
+ char *next, *end;
+
+ len = str ? strlen (str) : 0;
+
+ va_start (ap, str);
+ newlen = len + 1;
+ while ((next = va_arg (ap, char *)))
+ newlen += strlen (next);
+ va_end (ap);
+
+ str = xrealloc (str, newlen);
+ end = str + len;
+
+ va_start (ap, str);
+ while ((next = va_arg (ap, char *))) {
+ strcpy (end, next);
+ end += strlen (next);
+ }
+ va_end (ap);
+
+ return str;
+}