int check_ref_format(const char *ref)
{
int ch, level, bad_type, last;
int ret = CHECK_REF_FORMAT_OK;
const char *cp = ref;
level = 0;
while (1) {
while ((ch = *cp++) == '/')
; /* tolerate duplicated slashes */
if (!ch)
/* should not end with slashes */
return CHECK_REF_FORMAT_ERROR;
/* we are at the beginning of the path component */
if (ch == '.')
return CHECK_REF_FORMAT_ERROR;
bad_type = bad_ref_char(ch);
if (bad_type) {
if (bad_type == 2 && (!*cp || *cp == '/') &&
ret == CHECK_REF_FORMAT_OK)
ret = CHECK_REF_FORMAT_WILDCARD;
else
return CHECK_REF_FORMAT_ERROR;
}
last = ch;
/* scan the rest of the path component */
while ((ch = *cp++) != 0) {
bad_type = bad_ref_char(ch);
if (bad_type)
return CHECK_REF_FORMAT_ERROR;
if (ch == '/')
break;
if (last == '.' && ch == '.')
return CHECK_REF_FORMAT_ERROR;
if (last == '@' && ch == '{')
return CHECK_REF_FORMAT_ERROR;
last = ch;
}
level++;
if (!ch) {
if (ref <= cp - 2 && cp[-2] == '.')
return CHECK_REF_FORMAT_ERROR;
if (level < 2)
return CHECK_REF_FORMAT_ONELEVEL;
if (has_extension(ref, ".lock"))
return CHECK_REF_FORMAT_ERROR;
return ret;
}
}
}
int check_ref_format(const char *ref)
{
int ch, level, bad_type;
const char *cp = ref;
level = 0;
while (1) {
while ((ch = *cp++) == '/')
; /* tolerate duplicated slashes */
if (!ch)
/* should not end with slashes */
return CHECK_REF_FORMAT_ERROR;
/* we are at the beginning of the path component */
if (ch == '.')
return CHECK_REF_FORMAT_ERROR;
bad_type = bad_ref_char(ch);
if (bad_type) {
return (bad_type == 2 && !*cp)
? CHECK_REF_FORMAT_WILDCARD
: CHECK_REF_FORMAT_ERROR;
}
/* scan the rest of the path component */
while ((ch = *cp++) != 0) {
bad_type = bad_ref_char(ch);
if (bad_type) {
return (bad_type == 2 && !*cp)
? CHECK_REF_FORMAT_WILDCARD
: CHECK_REF_FORMAT_ERROR;
}
if (ch == '/')
break;
if (ch == '.' && *cp == '.')
return CHECK_REF_FORMAT_ERROR;
}
level++;
if (!ch) {
if (level < 2)
return CHECK_REF_FORMAT_ONELEVEL;
return CHECK_REF_FORMAT_OK;
}
}
}
