MFH Add asprintf, use regular system malloc and free and add checks in configure.in for the functions

Author: Scott MacVicar

configure.in

@@ -637,6 +637,8 @@ usleep \
 nanosleep \
 utime \
 vsnprintf \
+vasprintf \
+asprintf \
 )
 
 dnl Check for getaddrinfo, should be a better way, but...

ext/fileinfo/libmagic/print.c

@@ -62,7 +62,7 @@ file_magwarn(struct magic_set *ms, const char *f, ...)
 
 	php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Warning: %s", expanded_format);
 
-	efree(expanded_format);
+	free(expanded_format);
 }
 
 protected const char *

main/snprintf.c

@@ -1280,9 +1280,9 @@ PHPAPI int ap_php_vasprintf(char **buf, const char *format, va_list ap) /* {{{ *
 	*buf = NULL;
 
 	if (cc >= 0) {
-		if ((*buf = emalloc(++cc)) != NULL) {
+		if ((*buf = malloc(++cc)) != NULL) {
 			if ((cc = ap_php_vsnprintf(*buf, cc, format, ap)) < 0) {
-				efree(*buf);
+				free(*buf);
 				*buf = NULL;
 			}
 		}
@@ -1292,6 +1292,18 @@ PHPAPI int ap_php_vasprintf(char **buf, const char *format, va_list ap) /* {{{ *
 }
 /* }}} */
 
+PHPAPI int ap_php_asprintf(char **buf, const char *format, ...) /* {{{ */
+{
+	int cc;
+	va_list ap;
+
+	va_start(ap, format);
+	cc = vasprintf(buf, format, ap);
+	va_end(ap);
+	return cc;
+}
+/* }}} */
+
 /*
  * Local variables:
  * tab-width: 4

main/snprintf.h

@@ -83,6 +83,7 @@ PHPAPI int ap_php_vslprintf(char *buf, size_t len, const char *format, va_list a
 PHPAPI int ap_php_snprintf(char *, size_t, const char *, ...);
 PHPAPI int ap_php_vsnprintf(char *, size_t, const char *, va_list ap);
 PHPAPI int ap_php_vasprintf(char **buf, const char *format, va_list ap);
+PHPAPI int ap_php_asprintf(char **buf, const char *format, ...);
 PHPAPI int php_sprintf (char* s, const char* format, ...) PHP_ATTRIBUTE_FORMAT(printf, 2, 3);
 PHPAPI char * php_gcvt(double value, int ndigit, char dec_point, char exponent, char *buf);
 PHPAPI char * php_conv_fp(register char format, register double num,
@@ -110,10 +111,13 @@ END_EXTERN_C()
 #endif
 #define vsnprintf ap_php_vsnprintf
 
-#ifdef vasprintf
-#undef vasprintf
-#endif
+#ifndef HAVE_VASPRINTF
 #define vasprintf ap_php_vasprintf
+#endif
+
+#ifndef HAVE_ASPRINTF
+#define asprintf ap_php_asprintf
+#endif
 
 #ifdef sprintf
 #undef sprintf