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Merge branch 'jk/maint-config-bogus-section'

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"git config --rename-section" to rename an existing section into a
bogus one did not check the new name.

By Jeff King
* jk/maint-config-bogus-section:
  config: reject bogus section names for --rename-section
This commit is contained in:
Junio C Hamano 2012-04-30 14:46:46 -07:00
parent 10d4332e00 94a35b1aea
commit 563b3527b4
2 changed files with 31 additions and 1 deletions
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24
config.c
View file

@ -1558,20 +1558,42 @@ static int section_name_match (const char *buf, const char *name)
return 0;
}
static int section_name_is_ok(const char *name)
{
/* Empty section names are bogus. */
if (!*name)
return 0;
/*
* Before a dot, we must be alphanumeric or dash. After the first dot,
* anything goes, so we can stop checking.
*/
for (; *name && *name != '.'; name++)
if (*name != '-' && !isalnum(*name))
return 0;
return 1;
}
/* if new_name == NULL, the section is removed instead */
int git_config_rename_section_in_file(const char *config_filename,
const char *old_name, const char *new_name)
{
int ret = 0, remove = 0;
char *filename_buf = NULL;
struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1);
struct lock_file *lock;
int out_fd;
char buf[1024];
FILE *config_file;
if (new_name && !section_name_is_ok(new_name)) {
ret = error("invalid section name: %s", new_name);
goto out;
}
if (!config_filename)
config_filename = filename_buf = git_pathdup("config");
lock = xcalloc(sizeof(struct lock_file), 1);
out_fd = hold_lock_file_for_update(lock, config_filename, 0);
if (out_fd < 0) {
ret = error("could not lock config file %s", config_filename);

8
t/t1300-repo-config.sh
View file

@ -550,6 +550,14 @@ EOF
test_expect_success "rename succeeded" "test_cmp expect .git/config"
test_expect_success 'renaming empty section name is rejected' '
test_must_fail git config --rename-section branch.zwei ""
'
test_expect_success 'renaming to bogus section is rejected' '
test_must_fail git config --rename-section branch.zwei "bogus name"
'
cat >> .git/config << EOF
[branch "zwei"] a = 1 [branch "vier"]
EOF