diff options
| -rw-r--r-- | scripts/common.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/scripts/common.c b/scripts/common.c index 3d07be3630..2be41615ea 100644 --- a/scripts/common.c +++ b/scripts/common.c @@ -102,33 +102,26 @@ int write_file(const char *filename, const void *buf, size_t size) { int fd, ret = 0; int now; - size_t left = size; - /* The same file may be mmapped currently, so can't use O_TRUNC here */ - fd = open(filename, O_WRONLY | O_CREAT, + fd = open(filename, O_WRONLY | O_TRUNC | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); if (fd < 0) { fprintf(stderr, "Cannot open %s: %s\n", filename, strerror(errno)); return -errno; } - while (left) { - now = write(fd, buf, left); + while (size) { + now = write(fd, buf, size); if (now < 0) { fprintf(stderr, "Cannot write to %s: %s\n", filename, strerror(errno)); ret = -errno; goto out; } - left -= now; + size -= now; buf += now; } - if (ftruncate(fd, size) < 0) { - fprintf(stderr, "Cannot truncate file: %s", strerror(errno)); - ret = -errno; - } - out: close(fd); |