On Fri, Jul 25, 2014 at 6:43 AM, Nguyễn Thái Ngọc Duy <pclo...@gmail.com> wrote:
> This function is used to replaced some code in the next patch that
s/replaced/replace/
> does this (i.e. keep the errno when read() fails)
>
> Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
> ---
> strbuf.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/strbuf.c b/strbuf.c
> index 33018d8..61d685d 100644
> --- a/strbuf.c
> +++ b/strbuf.c
> @@ -454,15 +454,18 @@ int strbuf_getwholeline_fd(struct strbuf *sb, int fd,
> int term)
>
> int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint)
> {
> - int fd, len;
> + int fd, len, saved_errno;
>
> fd = open(path, O_RDONLY);
> if (fd < 0)
> return -1;
> len = strbuf_read(sb, fd, hint);
> + saved_errno = errno;
> close(fd);
> - if (len < 0)
> + if (len < 0) {
> + errno = saved_errno;
> return -1;
> + }
>
> return len;
> }
> --
> 1.9.1.346.ga2b5940
>
> --
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