Seek to start of an entry inside an ar file

git-svn-id: svn://busybox.net/trunk/busybox@2317 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 17 insertions, 0 deletions

diff --git a/libbb/seek_ared_file.c b/libbb/seek_ared_file.c
new file mode 100644
index 000000000..67c789d6d
--- /dev/null
+++ b/libbb/seek_ared_file.c
@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "libbb.h"
+
+extern int seek_ared_file(FILE *in_file, ar_headers_t *headers, const char *tar_gz_file)
+{
+        /* find the headers for the specified .tar.gz file */
+        while (headers->next != NULL) {
+                if (strcmp(headers->name, tar_gz_file) == 0) {
+                        fseek(in_file, headers->offset, SEEK_SET);
+                        return(EXIT_SUCCESS);
+                }
+                headers = headers->next;
+        }
+
+        return(EXIT_FAILURE);
+}
\ No newline at end of file