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check_aliased_update: strcpy() instead of strcat() to copy

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da3efdb (receive-pack: detect aliased updates which can occur with
symrefs, 2010-04-19) introduced two strcat() into uninitialized
strings.  The intent was clearly make a copy of the static buffer used
by find_unique_abbrev(), so use strcpy() instead.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Tested-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Thomas Rast 2010-06-10 20:43:51 +02:00 committed by Junio C Hamano
parent da3efdb17b
commit 0e71bc3004
1 changed files with 2 additions and 2 deletions
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4
builtin-receive-pack.c
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@ -515,9 +515,9 @@ static void check_aliased_update(struct command *cmd, struct string_list *list)
dst_cmd->skip_update = 1;
strcpy(cmd_oldh, find_unique_abbrev(cmd->old_sha1, DEFAULT_ABBREV));
strcat(cmd_newh, find_unique_abbrev(cmd->new_sha1, DEFAULT_ABBREV));
strcpy(cmd_newh, find_unique_abbrev(cmd->new_sha1, DEFAULT_ABBREV));
strcpy(dst_oldh, find_unique_abbrev(dst_cmd->old_sha1, DEFAULT_ABBREV));
strcat(dst_newh, find_unique_abbrev(dst_cmd->new_sha1, DEFAULT_ABBREV));
strcpy(dst_newh, find_unique_abbrev(dst_cmd->new_sha1, DEFAULT_ABBREV));
rp_error("refusing inconsistent update between symref '%s' (%s..%s) and"
" its target '%s' (%s..%s)",
cmd->ref_name, cmd_oldh, cmd_newh,