From 1e232a2ad2d353f7d125b9e993cd8f6152900937 Mon Sep 17 00:00:00 2001 From: nbd Date: Tue, 23 Sep 2008 16:12:40 +0000 Subject: firmware-utils: when using open with O_CREAT and O_WRONLY, also use O_TRUNC to ensure that overwritten files have the right size (fixes #3505) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12667 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- tools/firmware-utils/src/add_header.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools/firmware-utils/src/add_header.c') diff --git a/tools/firmware-utils/src/add_header.c b/tools/firmware-utils/src/add_header.c index 946068c39..37775c3e0 100644 --- a/tools/firmware-utils/src/add_header.c +++ b/tools/firmware-utils/src/add_header.c @@ -122,7 +122,7 @@ int main(int argc, char **argv) memcpy(buf, &header, sizeof(header)); // write the buf - if ((fd = open(argv[3], O_CREAT|O_WRONLY,0644)) < 0 + if ((fd = open(argv[3], O_CREAT|O_WRONLY|O_TRUNC,0644)) < 0 || write(fd, buf, buflen) != buflen || close(fd) < 0) { -- cgit v1.2.3