[netfilter-cvslog] r3393 - trunk/nfsim/core

[rusty at netfilter.org]

Author: rusty at netfilter.org
Date: 2004-12-16 01:04:40 +0100 (Thu, 16 Dec 2004)
New Revision: 3393

Modified:
   trunk/nfsim/core/utils.c
   trunk/nfsim/core/utils.h
Log:
grab_file/release_file utility functions

Modified: trunk/nfsim/core/utils.c
===================================================================
--- trunk/nfsim/core/utils.c	2004-12-15 23:20:33 UTC (rev 3392)
+++ trunk/nfsim/core/utils.c	2004-12-16 00:04:40 UTC (rev 3393)
@@ -25,6 +25,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
+#include <unistd.h>
 
 #include "utils.h"
 #include "log.h"
@@ -61,3 +62,28 @@
 	free(str);
 	exit(EXIT_FAILURE);
 }
+
+/* This version adds one byte (for nul term) */
+void *grab_file(int fd, unsigned long *size)
+{
+	unsigned int max = 16384;
+	int ret;
+	void *buffer = malloc(max+1);
+
+	*size = 0;
+	while ((ret = read(fd, buffer + *size, max - *size)) > 0) {
+		*size += ret;
+		if (*size == max)
+			buffer = realloc(buffer, max *= 2 + 1);
+	}
+	if (ret < 0) {
+		free(buffer);
+		buffer = NULL;
+	}
+	return buffer;
+}
+
+void release_file(void *data, unsigned long size)
+{
+	free(data);
+}

Modified: trunk/nfsim/core/utils.h
===================================================================
--- trunk/nfsim/core/utils.h	2004-12-15 23:20:33 UTC (rev 3392)
+++ trunk/nfsim/core/utils.h	2004-12-16 00:04:40 UTC (rev 3393)
@@ -43,5 +43,8 @@
 void barf(const char *fmt, ...) __attribute__((noreturn));
 void barf_perror(const char *fmt, ...) __attribute__((noreturn));
 
+void *grab_file(int fd, unsigned long *size);
+void release_file(void *data, unsigned long size);
+
 extern void kernelenv_init(void);
 #endif /* _STDRUSTY_H */