* printbuf.c - C. Watford (christopher dot watford at gmail dot com)

Added a Win32/Win64 compliant implementation of vasprintf
  * debug.c - C. Watford (christopher dot watford at gmail dot com)
    Removed usage of vsyslog on Win32/Win64 systems, needs to be handled
    by a configure script
  * json_object.c - C. Watford (christopher dot watford at gmail dot com)
    Added scope operator to wrap usage of json_object_object_foreach, this
    needs to be rethought to be more ANSI C friendly
  * json_object.h - C. Watford (christopher dot watford at gmail dot com)
    Added Microsoft C friendly version of json_object_object_foreach
  * json_tokener.c - C. Watford (christopher dot watford at gmail dot com)
    Added a Win32/Win64 compliant implementation of strndup
  * json_util.c - C. Watford (christopher dot watford at gmail dot com)
    Added cast and mask to suffice size_t v. unsigned int conversion
    correctness
  * json_tokener.c - sign reversal issue on error info for nested object parse
    spotted by Johan Bj�rklund (johbjo09 at kth.se)
  * json_object.c - escape " in json_escape_str
  * Change to automake and libtool to build shared and static library
    Michael Clark <michael@metaparadigm.com>


git-svn-id: http://svn.metaparadigm.com/svn/json-c/trunk@4 327403b1-1117-474d-bef2-5cb71233fd97

printbuf.c

@@ -1,5 +1,5 @@
 /*
- * $Id: printbuf.c,v 1.3 2004/08/07 03:12:21 mclark Exp $
+ * $Id: printbuf.c,v 1.4 2005/06/14 22:41:51 mclark Exp $
  *
  * Copyright Metaparadigm Pte. Ltd. 2004.
  * Michael Clark <michael@metaparadigm.com>
@@ -16,16 +16,22 @@
  *
  */
 
+#include "config.h"
+
 #include <stdio.h>
 #include <stdlib.h>
-#include <stdarg.h>
 #include <string.h>
 
+#if HAVE_STDARG_H
+# include <stdarg.h>
+#else /* !HAVE_STDARG_H */
+# error Not enough var arg support!
+#endif /* HAVE_STDARG_H */
+
 #include "bits.h"
 #include "debug.h"
 #include "printbuf.h"
 
-
 struct printbuf* printbuf_new()
 {
   struct printbuf *p;
@@ -46,11 +52,11 @@ int printbuf_memappend(struct printbuf *p, char *buf, int size)
   char *t;
   if(p->size - p->bpos <= size) {
     int new_size = max(p->size * 2, p->bpos + size + 8);
-#if 0
+#ifdef PRINTBUF_DEBUG
     mc_debug("printbuf_memappend: realloc "
 	     "bpos=%d wrsize=%d old_size=%d new_size=%d\n",
 	     p->bpos, size, p->size, new_size);
-#endif
+#endif /* PRINTBUF_DEBUG */
     if(!(t = realloc(p->buf, new_size))) return -1;
     p->size = new_size;
     p->buf = t;
@@ -61,6 +67,46 @@ int printbuf_memappend(struct printbuf *p, char *buf, int size)
   return size;
 }
 
+#if !HAVE_VSNPRINTF && defined(WIN32)
+# define vsnprintf _vsnprintf
+#elif !HAVE_VSNPRINTF /* !HAVE_VSNPRINTF */
+# error Need vsnprintf!
+#endif /* !HAVE_VSNPRINTF && defined(WIN32) */
+
+#if !HAVE_VASPRINTF
+/* CAW: compliant version of vasprintf */
+static int vasprintf(char **buf, const char *fmt, va_list ap)
+{
+#ifndef WIN32
+	static char _T_emptybuffer = '\0';
+#endif /* !defined(WIN32) */
+	int chars;
+	char *b;
+
+	if(!buf) { return -1; }
+
+#ifdef WIN32
+	chars = _vscprintf(fmt, ap)+1;
+#else /* !defined(WIN32) */
+	/* CAW: RAWR! We have to hope to god here that vsnprintf doesn't overwrite
+	   our buffer like on some 64bit sun systems.... but hey, its time to move on */
+	chars = vsnprintf(&_T_emptybuffer, 0, fmt, ap)+1;
+	if(chars < 0) { chars *= -1; } /* CAW: old glibc versions have this problem */
+#endif /* defined(WIN32) */
+
+	b = (char*)malloc(sizeof(char)*chars);
+	if(!b) { return -1; }
+
+	if((chars = vsprintf(b, fmt, ap)) < 0)
+	{
+		free(b);
+	} else {
+		*buf = b;
+	}
+
+	return chars;
+}
+#endif /* !HAVE_VASPRINTF */
 
 int sprintbuf(struct printbuf *p, const char *msg, ...)
 {
@@ -76,7 +122,7 @@ int sprintbuf(struct printbuf *p, const char *msg, ...)
   /* if string is greater than stack buffer, then use dynamic string
      with vasprintf.  Note: some implementation of vsnprintf return -1
      if output is truncated whereas some return the number of bytes that
-     would have been writeen - this code handles both cases. */
+     would have been writen - this code handles both cases. */
   if(size == -1 || size > 127) {
     int ret;
     va_start(ap, msg);
@@ -90,7 +136,6 @@ int sprintbuf(struct printbuf *p, const char *msg, ...)
   }
 }
 
-
 void printbuf_reset(struct printbuf *p)
 {
   p->buf[0] = '\0';