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qemu_mode: compiler warnings, strncpy() leave one byte for terminator

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hexcoder-
2020-03-28 14:15:04 +01:00
committed by Dominik Maier
parent 1950f09bde
commit 7698c051aa
2 changed files with 32 additions and 0 deletions
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31
qemu_mode/patches/make_strncpy_safe.diff Normal file
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@ -0,0 +1,31 @@
--- a/util/qemu-sockets.c 2020-03-28 13:55:09.511029429 +0100
+++ b/util/qemu-sockets.c 2020-03-28 14:01:12.147693937 +0100
@@ -877,7 +877,7 @@
memset(&un, 0, sizeof(un));
un.sun_family = AF_UNIX;
- strncpy(un.sun_path, path, sizeof(un.sun_path));
+ strncpy(un.sun_path, path, sizeof(un.sun_path) - 1);
if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) {
error_setg_errno(errp, errno, "Failed to bind socket to %s", path);
@@ -922,7 +922,7 @@
memset(&un, 0, sizeof(un));
un.sun_family = AF_UNIX;
- strncpy(un.sun_path, saddr->path, sizeof(un.sun_path));
+ strncpy(un.sun_path, saddr->path, sizeof(un.sun_path) - 1);
/* connect to peer */
do {
--- a/block/sheepdog.c 2020-03-28 14:01:57.164360270 +0100
+++ b/block/sheepdog.c 2020-03-28 14:02:52.781026597 +0100
@@ -1236,7 +1236,7 @@
* don't want the send_req to read uninitialized data.
*/
strncpy(buf, filename, SD_MAX_VDI_LEN);
- strncpy(buf + SD_MAX_VDI_LEN, tag, SD_MAX_VDI_TAG_LEN);
+ strncpy(buf + SD_MAX_VDI_LEN, tag, SD_MAX_VDI_TAG_LEN - 1);
memset(&hdr, 0, sizeof(hdr));
if (lock) {