From 271421cd345a9b5e2fc7e30e672d2c998f50e1dc Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Fri, 30 Sep 2005 00:07:39 -0700 Subject: [PATCH] Update partial HTTP transfers. Add the sanity checks discussed on the list with Nick Hengeveld in <20050927000931.GA15615@reactrix.com>. * unlink of previous and rename from temp to previous can fail for reasons other than benign ones (missing previous and missing temp). Report these failures when we encounter them, to make diagnosing problems easier. * when rewinding the partially written result, make sure to truncate the file. Also verify the pack after downloading by calling verify_packfile(). Signed-off-by: Junio C Hamano --- http-fetch.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/http-fetch.c b/http-fetch.c index 778d50824..e8ac9959f 100644 --- a/http-fetch.c +++ b/http-fetch.c @@ -1,6 +1,6 @@ #include "cache.h" #include "commit.h" - +#include "pack.h" #include "fetch.h" #include @@ -431,6 +431,8 @@ static int fetch_pack(struct alt_base *repo, unsigned char *sha1) lst = &((*lst)->next); *lst = (*lst)->next; + if (verify_pack(target, 0)) + return -1; install_packed_git(target); return 0; @@ -456,9 +458,13 @@ static int fetch_object(struct alt_base *repo, unsigned char *sha1) snprintf(tmpfile, sizeof(tmpfile), "%s.temp", filename); snprintf(prevfile, sizeof(prevfile), "%s.prev", filename); - unlink(prevfile); - rename(tmpfile, prevfile); - unlink(tmpfile); + + if (unlink(prevfile) && (errno != ENOENT)) + return error("Failed to unlink %s (%s)", + prevfile, strerror(errno)); + if (rename(tmpfile, prevfile) && (errno != ENOENT)) + return error("Failed to rename %s to %s (%s)", + tmpfile, prevfile, strerror(errno)); local = open(tmpfile, O_WRONLY | O_CREAT | O_EXCL, 0666); @@ -523,6 +529,7 @@ static int fetch_object(struct alt_base *repo, unsigned char *sha1) if (prev_posn>0) { prev_posn = 0; lseek(local, SEEK_SET, 0); + ftruncate(local, 0); } } -- 2.26.2