Merge branch 'jk/read-in-full'

Code clean-up to prevent future mistakes by copying and pasting
code that checks the result of read_in_full() function.

* jk/read-in-full:
  worktree: check the result of read_in_full()
  worktree: use xsize_t to access file size
  distinguish error versus short read from read_in_full()
  avoid looking at errno for short read_in_full() returns
  prefer "!=" when checking read_in_full() result
  notes-merge: drop dead zero-write code
  files-backend: prefer "0" for write_in_full() error check
This commit is contained in:
Junio C Hamano
2017-10-03 15:42:49 +09:00
10 changed files with 55 additions and 17 deletions

View File

@ -1748,10 +1748,15 @@ static int index_core(unsigned char *sha1, int fd, size_t size,
ret = index_mem(sha1, "", size, type, path, flags);
} else if (size <= SMALL_FILE_SIZE) {
char *buf = xmalloc(size);
if (size == read_in_full(fd, buf, size))
ret = index_mem(sha1, buf, size, type, path, flags);
ssize_t read_result = read_in_full(fd, buf, size);
if (read_result < 0)
ret = error_errno("read error while indexing %s",
path ? path : "<unknown>");
else if (read_result != size)
ret = error("short read while indexing %s",
path ? path : "<unknown>");
else
ret = error_errno("short read");
ret = index_mem(sha1, buf, size, type, path, flags);
free(buf);
} else {
void *buf = xmmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);