From: realtime-neil <neil@rtr.ai>
Date: Mon, 25 Jan 2021 22:44:07 +0000 (+0000)
Subject: fix(skipcpio): edit skipcpio.c: strstr -> memmem
X-Git-Tag: 052~130
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=68dd8af21d34c5c2cb8631f7c02c6a6cf1aa6122;p=thirdparty%2Fdracut.git

fix(skipcpio): edit skipcpio.c: strstr -> memmem

because CPIO_END might follow a NULL byte in buf
---

diff --git a/skipcpio/skipcpio.c b/skipcpio/skipcpio.c
index 30699816d..dea216c57 100644
--- a/skipcpio/skipcpio.c
+++ b/skipcpio/skipcpio.c
@@ -72,7 +72,7 @@ int main(int argc, char **argv)
                         if (s <= 0)
                                 break;
 
-                        h = strstr(buf, CPIO_END);
+                        h = memmem(buf, sizeof(buf), CPIO_END, sizeof(CPIO_END));
                         if (h) {
                                 pos = (h - buf) + pos + CPIO_ENDLEN;
                                 fseek(f, pos, SEEK_SET);