diff options
| -rw-r--r-- | applypatch/imgdiff.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/applypatch/imgdiff.cpp b/applypatch/imgdiff.cpp index 4d83ffb2e..50cabbe6b 100644 --- a/applypatch/imgdiff.cpp +++ b/applypatch/imgdiff.cpp @@ -628,7 +628,15 @@ unsigned char* MakePatch(ImageChunk* src, ImageChunk* tgt, size_t* size) { } char ptemp[] = "/tmp/imgdiff-patch-XXXXXX"; - mkstemp(ptemp); + int fd = mkstemp(ptemp); + + if (fd == -1) { + printf("MakePatch failed to create a temporary file: %s\n", + strerror(errno)); + return NULL; + } + close(fd); // temporary file is created and we don't need its file + // descriptor int r = bsdiff(src->data, src->len, &(src->I), tgt->data, tgt->len, ptemp); if (r != 0) { |