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authorAndy Whitcroft <apw@shadowen.org>2007-01-08 15:58:08 +0000
committerJunio C Hamano <junkio@cox.net>2007-01-08 15:44:47 -0800
commit93d26e4cb9cec2eb8abb4f37e6dda2c86fcceeac (patch)
tree8d3cda91ddd8242531995cb304f37578bfaa7cf0 /ssh-fetch.c
parente08140568a131bcd26e64a0bc8188040847be998 (diff)
downloadgit-93d26e4cb9cec2eb8abb4f37e6dda2c86fcceeac.tar.gz
short i/o: fix calls to read to use xread or read_in_full
We have a number of badly checked read() calls. Often we are expecting read() to read exactly the size we requested or fail, this fails to handle interrupts or short reads. Add a read_in_full() providing those semantics. Otherwise we at a minimum need to check for EINTR and EAGAIN, where this is appropriate use xread(). Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'ssh-fetch.c')
-rw-r--r--ssh-fetch.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/ssh-fetch.c b/ssh-fetch.c
index b006c5c980..72965d678a 100644
--- a/ssh-fetch.c
+++ b/ssh-fetch.c
@@ -82,7 +82,7 @@ int fetch(unsigned char *sha1)
remote = conn_buf[0];
memmove(conn_buf, conn_buf + 1, --conn_buf_posn);
} else {
- if (read(fd_in, &remote, 1) < 1)
+ if (xread(fd_in, &remote, 1) < 1)
return -1;
}
/* fprintf(stderr, "Got %d\n", remote); */
@@ -99,7 +99,7 @@ static int get_version(void)
char type = 'v';
write(fd_out, &type, 1);
write(fd_out, &local_version, 1);
- if (read(fd_in, &remote_version, 1) < 1) {
+ if (xread(fd_in, &remote_version, 1) < 1) {
return error("Couldn't read version from remote end");
}
return 0;
@@ -111,10 +111,13 @@ int fetch_ref(char *ref, unsigned char *sha1)
char type = 'r';
write(fd_out, &type, 1);
write(fd_out, ref, strlen(ref) + 1);
- read(fd_in, &remote, 1);
+
+ if (read_in_full(fd_in, &remote, 1) != 1)
+ return -1;
if (remote < 0)
return remote;
- read(fd_in, sha1, 20);
+ if (read_in_full(fd_in, sha1, 20) != 20)
+ return -1;
return 0;
}