X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/460b9539a7c15580e41a71bbc0f47ae776238915..refs/heads/master:/lib/asprintf.c

diff --git a/lib/asprintf.c b/lib/asprintf.c
index 3abe0db..44be789 100644
--- a/lib/asprintf.c
+++ b/lib/asprintf.c
@@ -1,52 +1,64 @@
 /*
  * This file is part of DisOrder
- * Copyright (C) 2004, 2006 Richard Kettlewell
+ * Copyright (C) 2004-2009 Richard Kettlewell
  *
- * This program is free software; you can redistribute it and/or modify
+ * 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
+ * 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.
- *
+ * 
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+/** @file lib/asprintf.c @brief printf() workalikes */
 
-#include <config.h>
-#include "types.h"
+#include "common.h"
 
-#include <stdio.h>
-#include <string.h>
 #include <stdarg.h>
 #include <stddef.h>
 #include <errno.h>
 
 #include "printf.h"
+#include "log.h"
 #include "sink.h"
 #include "mem.h"
 #include "vector.h"
-#include "log.h"
 
+/** @brief vasprintf() workalike without encoding errors
+ *
+ * This acts like vasprintf() except that it does not throw an error
+ * if you use a string outside the current locale's encoding rules,
+ * and it uses the memory allocation calls from @ref mem.h.
+ */
 int byte_vasprintf(char **ptrp,
 		   const char *fmt,
 		   va_list ap) {
+  struct sink *s;
   struct dynstr d;
   int n;
 
   dynstr_init(&d);
-  if((n = byte_vsinkprintf(sink_dynstr(&d), fmt, ap)) >= 0) {
+  s = sink_dynstr(&d);
+  n = byte_vsinkprintf(s, fmt, ap);
+  xfree(s);
+  if(n >= 0) {
     dynstr_terminate(&d);
     *ptrp = d.vec;
   }
   return n;
 }
 
+/** @brief asprintf() workalike without encoding errors
+ *
+ * This acts like asprintf() except that it does not throw an error
+ * if you use a string outside the current locale's encoding rules,
+ * and it uses the memory allocation calls from @ref mem.h.
+ */
 int byte_asprintf(char **ptrp,
 		  const char *fmt,
 		  ...) {
@@ -59,6 +71,13 @@ int byte_asprintf(char **ptrp,
   return n;
 }
 
+/** @brief asprintf() workalike without encoding errors
+ *
+ * This acts like asprintf() except that it does not throw an error if
+ * you use a string outside the current locale's encoding rules; it
+ * uses the memory allocation calls from @ref mem.h; and it terminates
+ * the program on error.
+ */
 int byte_xasprintf(char **ptrp,
 		   const char *fmt,
 		   ...) {
@@ -71,13 +90,20 @@ int byte_xasprintf(char **ptrp,
   return n;
 }
 
+/** @brief vasprintf() workalike without encoding errors
+ *
+ * This acts like vasprintf() except that it does not throw an error
+ * if you use a string outside the current locale's encoding rules; it
+ * uses the memory allocation calls from @ref mem.h; and it terminates
+ * the program on error.
+ */
 int byte_xvasprintf(char **ptrp,
 		    const char *fmt,
 		    va_list ap) {
   int n;
 
   if((n = byte_vasprintf(ptrp, fmt, ap)) < 0)
-    fatal(errno, "error calling byte_vasprintf");
+    disorder_fatal(errno, "error calling byte_vasprintf");
   return n;
 }
 
@@ -87,4 +113,3 @@ c-basic-offset:2
 comment-column:40
 End:
 */
-/* arch-tag:39488c5fd6a6d176e613e7e747e55628 */