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Diffstat (limited to 'source4/heimdal/lib/roken/dumpdata.c')
-rw-r--r--source4/heimdal/lib/roken/dumpdata.c44
1 files changed, 43 insertions, 1 deletions
diff --git a/source4/heimdal/lib/roken/dumpdata.c b/source4/heimdal/lib/roken/dumpdata.c
index c445bfa361..81fd127296 100644
--- a/source4/heimdal/lib/roken/dumpdata.c
+++ b/source4/heimdal/lib/roken/dumpdata.c
@@ -33,7 +33,7 @@
#ifdef HAVE_CONFIG_H
#include <config.h>
-RCSID("$Id: dumpdata.c 21005 2007-06-08 01:54:35Z lha $");
+RCSID("$Id: dumpdata.c 23412 2008-07-26 18:34:23Z lha $");
#endif
#include <unistd.h>
@@ -55,3 +55,45 @@ rk_dumpdata (const char *filename, const void *buf, size_t size)
net_write(fd, buf, size);
close(fd);
}
+
+/*
+ * Read all data from a filename, care about errors.
+ */
+
+int ROKEN_LIB_FUNCTION
+rk_undumpdata(const char *filename, void **buf, size_t *size)
+{
+ struct stat sb;
+ int fd, ret;
+ ssize_t sret;
+
+ *buf = NULL;
+
+ fd = open(filename, O_RDONLY, 0);
+ if (fd < 0)
+ return errno;
+ if (fstat(fd, &sb) != 0){
+ ret = errno;
+ goto out;
+ }
+ *buf = malloc(sb.st_size);
+ if (*buf == NULL) {
+ ret = ENOMEM;
+ goto out;
+ }
+ *size = sb.st_size;
+
+ sret = net_read(fd, *buf, *size);
+ if (sret < 0)
+ ret = errno;
+ else if (sret != *size) {
+ ret = EINVAL;
+ free(*buf);
+ *buf = NULL;
+ } else
+ ret = 0;
+
+ out:
+ close(fd);
+ return ret;
+}