*** vasprintf.c.ORIG	Tue Jun 24 23:49:55 2008
--- vasprintf.c	Tue Jun 24 22:57:21 2008
***************
*** 0 ****
--- 1,102 ----
+ /*
+  * vasprintf(3)
+  * 20020809 entropy@tappedin.com
+  * public domain.  no warranty.  use at your own risk.  have a nice day.
+  */
+ 
+ #include <stdarg.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
+ #include <unistd.h>
+ 
+ #if HAVE_PATHS_H
+ #include <paths.h>
+ #endif /* HAVE_PATHS_H */
+ 
+ 
+ #if defined(HAVE__VSNPRINTF) && !defined(HAVE_VSNPRINTF)
+ #undef HAVE_VSNPRINTF
+ #undef vsnprintf
+ #define HAVE_VSNPRINTF 1
+ #define vsnprintf _vsnprintf
+ #endif
+ 
+ #ifndef _PATH_DEVNULL
+ #define _PATH_DEVNULL "/dev/null"
+ #endif
+ 
+ #define CHUNKSIZE 512
+ int
+ vasprintf(char **ret, const char *fmt, va_list ap)
+ {
+ #if HAVE_VSNPRINTF
+ 	int chunks;
+ 	size_t buflen;
+ 	char *buf;
+ 	int len;
+ 
+ 	chunks = ((strlen(fmt) + 1) / CHUNKSIZE) + 1;
+ 	buflen = chunks * CHUNKSIZE;
+ 	for (;;) {
+ 		if ((buf = malloc(buflen)) == NULL) {
+ 			*ret = NULL;
+ 			return -1;
+ 		}
+ 		len = vsnprintf(buf, buflen, fmt, ap);
+ 		if (len >= 0 && (size_t) len < (buflen - 1)) {
+ 			break;
+ 		}
+ 		free(buf);
+ 		buflen = (++chunks) * CHUNKSIZE;
+ 		/* 
+ 		 * len >= 0 are required for vsnprintf implementation that 
+ 		 * return -1 of buffer insufficient
+ 		 */
+ 		if (len >= 0 && (size_t) len >= buflen) {
+ 			buflen = len + 1;
+ 		}
+ 	}
+ 	*ret = buf;
+ 	return len;
+ #else /* HAVE_VSNPRINTF */
+ #ifdef _REENTRANT
+ 	FILE *fp;
+ #else /* !_REENTRANT */
+ 	static FILE *fp = NULL;
+ #endif /* !_REENTRANT */
+ 	int len;
+ 	char *buf;
+ 
+ 	*ret = NULL;
+ 
+ #ifdef _REENTRANT
+ 
+ # ifdef WIN32
+ #  error Win32 do not have /dev/null, should use vsnprintf version
+ # endif
+ 
+ 	if ((fp = fopen(_PATH_DEVNULL, "w")) == NULL)
+ 		return -1;
+ #else /* !_REENTRANT */
+ 	if ((fp == NULL) && ((fp = fopen(_PATH_DEVNULL, "w")) == NULL))
+ 		return -1;
+ #endif /* !_REENTRANT */
+ 
+ 	len = vfprintf(fp, fmt, ap);
+ 
+ #ifdef _REENTRANT
+ 	if (fclose(fp) != 0)
+ 		return -1;
+ #endif /* _REENTRANT */
+ 
+ 	if (len < 0)
+ 		return len;
+ 	if ((buf = malloc(len + 1)) == NULL)
+ 		return -1;
+ 	if (vsprintf(buf, fmt, ap) != len)
+ 		return -1;
+ 	*ret = buf;
+ 	return len;
+ #endif /* HAVE_VSNPRINTF */
+ }
*** vasprintf.h.ORIG	Tue Jun 24 23:50:01 2008
--- vasprintf.h	Tue Jun 24 22:56:32 2008
***************
*** 0 ****
--- 1,30 ----
+ #ifndef _vasprintf_h_
+ #define _vasprintf_h_
+ 
+ #include <stdarg.h>
+ 
+ #ifdef __cplusplus
+ extern "C"
+ {
+ #endif
+ 
+ #if defined(HAVE__VSNPRINTF) && !defined(HAVE_VSNPRINTF)
+ #undef vsnprintf
+ #define vsnprintf _vsnprintf
+ #elif !HAVE_VSNPRINTF
+ int vsnprintf(char *ret, size_t max, const char *fmt, va_list ap);
+ #endif /* !HAVE_VSNPRINTF */
+ 
+ #if !HAVE_ASPRINTF
+ int asprintf(char **ret, const char *fmt, ...);
+ #endif /* !HAVE_ASPRINTF */
+ 
+ #if !HAVE_VASPRINTF
+ int vasprintf(char **ret, const char *fmt, va_list ap);
+ #endif /* !HAVE_VASPRINTF */
+ 
+ #ifdef __cplusplus
+ }
+ #endif
+ 
+ #endif