X-Git-Url: https://git.strongswan.org/?p=strongswan.git;a=blobdiff_plain;f=src%2Flibstrongswan%2Fchunk.c;h=d70e1723f2a4875daa1a8802537b672ff6431c4d;hp=f2c8a3efb2b56aa03f5b71618e2e428a83fb4c9f;hb=7cbe4a33e9d8604999cd2ce8f45e633af703c014;hpb=f27f6296e6ae5beece739342fd54528cf91e5394

diff --git a/src/libstrongswan/chunk.c b/src/libstrongswan/chunk.c
index f2c8a3e..d70e172 100644
--- a/src/libstrongswan/chunk.c
+++ b/src/libstrongswan/chunk.c
@@ -22,9 +22,11 @@
  */
 
 #include <stdio.h>
+#include <sys/stat.h>
 
 #include "chunk.h"
 
+#include <debug.h>
 #include <printf_hook.h>
 
 /**
@@ -205,6 +207,45 @@ void chunk_split(chunk_t chunk, const char *mode, ...)
 	va_end(chunks);
 }
 
+/**
+ * Described in header.
+ */
+bool chunk_write(chunk_t chunk, const char *path, const char *label, mode_t mask, bool force)
+{
+	mode_t oldmask;
+	FILE *fd;
+
+	if (!force)
+	{
+		fd = fopen(path, "r");
+		if (fd)
+		{
+			fclose(fd);
+			DBG1("  %s file '%s' already exists", label, path);
+			return FALSE;
+		}
+	}
+
+	/* set umask */
+	oldmask = umask(mask);
+
+	fd = fopen(path, "w");
+
+	if (fd)
+	{
+		fwrite(chunk.ptr, sizeof(u_char), chunk.len, fd);
+		fclose(fd);
+		DBG1("  written %s file '%s' (%u bytes)", label, path, chunk.len);
+		umask(oldmask);
+		return TRUE;
+	}
+	else
+	{
+		DBG1("  could not open %s file '%s' for writing", label, path);
+		umask(oldmask);
+		return FALSE;
+	}
+}
 
 /**
  * Described in header.
@@ -233,6 +274,21 @@ chunk_t chunk_skip(chunk_t chunk, size_t bytes)
 /**
  * Described in header.
  */
+int chunk_compare(chunk_t a, chunk_t b)
+{
+	int compare_len = a.len - b.len;
+	int len = (compare_len < 0)? a.len : b.len;
+
+	if (compare_len != 0 || len == 0)
+	{
+		return compare_len;
+	}
+	return memcmp(a.ptr, b.ptr, len);
+};
+
+/**
+ * Described in header.
+ */
 bool chunk_equals(chunk_t a, chunk_t b)
 {
 	return a.ptr != NULL  && b.ptr != NULL &&