Mercurial > hg > webserver / file diff

--- a/src/server/util/io.c	Fri May 25 18:16:24 2012 +0200
+++ b/src/server/util/io.c	Mon Jul 23 15:13:19 2012 +0200
@@ -30,6 +30,8 @@
 #include <stdlib.h>
 #include <sys/uio.h>
 
+#include <limits.h> /* asprintf */
+
 #include "io.h"
 #include "pool.h"
 
@@ -139,3 +141,103 @@
 ssize_t iovec_buf_flush(iovec_buf_t *io, int fd) {
     return writev(fd, io->iov, io->iovctn);
 }
+
+
+/* TODO: add asprintf to new file */
+
+/* 
+ * asprintf implementation for Solaris 10 
+ * source from OpenSolaris
+ * file: /onnv/onnv-gate/usr/src/lib/libc/port/print/asprintf.c
+ */
+
+/*
+ * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*
+ * Copyright (c) 2004 Darren Tucker.
+ *
+ * Based originally on asprintf.c from OpenBSD:
+ * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifdef __SunOS_5_10
+
+#define	INIT_SZ	128
+
+/* VARARGS2 */
+int
+vasprintf(char **str, const char *format, va_list ap)
+{
+	char string[INIT_SZ];
+	char *newstr;
+	int ret;
+	size_t len;
+
+	*str = NULL;
+	ret = vsnprintf(string, INIT_SZ, format, ap);
+	if (ret < 0)	/* retain the value of errno from vsnprintf() */
+		return (-1);
+	if (ret < INIT_SZ) {
+		len = ret + 1;
+		if ((newstr = malloc(len)) == NULL)
+			return (-1);	/* retain errno from malloc() */
+		(void) strlcpy(newstr, string, len);
+		*str = newstr;
+		return (ret);
+	}
+	/*
+	 * We will perform this loop more than once only if some other
+	 * thread modifies one of the vasprintf() arguments after our
+	 * previous call to vsnprintf().
+	 */
+	for (;;) {
+		if (ret == INT_MAX) {	/* Bad length */
+			errno = ENOMEM;
+			return (-1);
+		}
+		len = ret + 1;
+		if ((newstr = malloc(len)) == NULL)
+			return (-1);	/* retain errno from malloc() */
+		ret = vsnprintf(newstr, len, format, ap);
+		if (ret < 0) {		/* retain errno from vsnprintf() */
+			free(newstr);
+			return (-1);
+		}
+		if (ret < len) {
+			*str = newstr;
+			return (ret);
+		}
+		free(newstr);
+	}
+}
+
+int
+asprintf(char **str, const char *format, ...)
+{
+	va_list ap;
+	int ret;
+
+	*str = NULL;
+	va_start(ap, format);
+	ret = vasprintf(str, format, ap);
+	va_end(ap);
+
+	return (ret);
+}
+
+#endif