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Diffstat (limited to 'attr.c')
-rw-r--r--attr.c72
1 files changed, 44 insertions, 28 deletions
diff --git a/attr.c b/attr.c
index 8de553293e..9e897e43f5 100644
--- a/attr.c
+++ b/attr.c
@@ -278,6 +278,10 @@ struct match_attr {
static const char blank[] = " \t\r\n";
+/* Flags usable in read_attr() and parse_attr_line() family of functions. */
+#define READ_ATTR_MACRO_OK (1<<0)
+#define READ_ATTR_NOFOLLOW (1<<1)
+
/*
* Parse a whitespace-delimited attribute state (i.e., "attr",
* "-attr", "!attr", or "attr=value") from the string starting at src.
@@ -331,7 +335,7 @@ static const char *parse_attr(const char *src, int lineno, const char *cp,
}
static struct match_attr *parse_attr_line(const char *line, const char *src,
- int lineno, int macro_ok)
+ int lineno, unsigned flags)
{
int namelen;
int num_attr, i;
@@ -355,7 +359,7 @@ static struct match_attr *parse_attr_line(const char *line, const char *src,
if (strlen(ATTRIBUTE_MACRO_PREFIX) < namelen &&
starts_with(name, ATTRIBUTE_MACRO_PREFIX)) {
- if (!macro_ok) {
+ if (!(flags & READ_ATTR_MACRO_OK)) {
fprintf_ln(stderr, _("%s not allowed: %s:%d"),
name, src, lineno);
goto fail_return;
@@ -569,7 +573,7 @@ struct attr_check *attr_check_initl(const char *one, ...)
check = attr_check_alloc();
check->nr = cnt;
check->alloc = cnt;
- check->items = xcalloc(cnt, sizeof(struct attr_check_item));
+ CALLOC_ARRAY(check->items, cnt);
check->items[0].attr = git_attr(one);
va_start(params, one);
@@ -653,11 +657,11 @@ static void handle_attr_line(struct attr_stack *res,
const char *line,
const char *src,
int lineno,
- int macro_ok)
+ unsigned flags)
{
struct match_attr *a;
- a = parse_attr_line(line, src, lineno, macro_ok);
+ a = parse_attr_line(line, src, lineno, flags);
if (!a)
return;
ALLOC_GROW(res->attrs, res->num_matches + 1, res->alloc);
@@ -670,9 +674,10 @@ static struct attr_stack *read_attr_from_array(const char **list)
const char *line;
int lineno = 0;
- res = xcalloc(1, sizeof(*res));
+ CALLOC_ARRAY(res, 1);
while ((line = *(list++)) != NULL)
- handle_attr_line(res, line, "[builtin]", ++lineno, 1);
+ handle_attr_line(res, line, "[builtin]", ++lineno,
+ READ_ATTR_MACRO_OK);
return res;
}
@@ -698,21 +703,31 @@ void git_attr_set_direction(enum git_attr_direction new_direction)
direction = new_direction;
}
-static struct attr_stack *read_attr_from_file(const char *path, int macro_ok)
+static struct attr_stack *read_attr_from_file(const char *path, unsigned flags)
{
- FILE *fp = fopen_or_warn(path, "r");
+ int fd;
+ FILE *fp;
struct attr_stack *res;
char buf[2048];
int lineno = 0;
- if (!fp)
+ if (flags & READ_ATTR_NOFOLLOW)
+ fd = open_nofollow(path, O_RDONLY);
+ else
+ fd = open(path, O_RDONLY);
+
+ if (fd < 0) {
+ warn_on_fopen_errors(path);
return NULL;
- res = xcalloc(1, sizeof(*res));
+ }
+ fp = xfdopen(fd, "r");
+
+ CALLOC_ARRAY(res, 1);
while (fgets(buf, sizeof(buf), fp)) {
char *bufp = buf;
if (!lineno)
skip_utf8_bom(&bufp, strlen(bufp));
- handle_attr_line(res, bufp, path, ++lineno, macro_ok);
+ handle_attr_line(res, bufp, path, ++lineno, flags);
}
fclose(fp);
return res;
@@ -720,7 +735,7 @@ static struct attr_stack *read_attr_from_file(const char *path, int macro_ok)
static struct attr_stack *read_attr_from_index(struct index_state *istate,
const char *path,
- int macro_ok)
+ unsigned flags)
{
struct attr_stack *res;
char *buf, *sp;
@@ -733,7 +748,7 @@ static struct attr_stack *read_attr_from_index(struct index_state *istate,
if (!buf)
return NULL;
- res = xcalloc(1, sizeof(*res));
+ CALLOC_ARRAY(res, 1);
for (sp = buf; *sp; ) {
char *ep;
int more;
@@ -741,7 +756,7 @@ static struct attr_stack *read_attr_from_index(struct index_state *istate,
ep = strchrnul(sp, '\n');
more = (*ep == '\n');
*ep = '\0';
- handle_attr_line(res, sp, path, ++lineno, macro_ok);
+ handle_attr_line(res, sp, path, ++lineno, flags);
sp = ep + more;
}
free(buf);
@@ -749,19 +764,19 @@ static struct attr_stack *read_attr_from_index(struct index_state *istate,
}
static struct attr_stack *read_attr(struct index_state *istate,
- const char *path, int macro_ok)
+ const char *path, unsigned flags)
{
struct attr_stack *res = NULL;
if (direction == GIT_ATTR_INDEX) {
- res = read_attr_from_index(istate, path, macro_ok);
+ res = read_attr_from_index(istate, path, flags);
} else if (!is_bare_repository()) {
if (direction == GIT_ATTR_CHECKOUT) {
- res = read_attr_from_index(istate, path, macro_ok);
+ res = read_attr_from_index(istate, path, flags);
if (!res)
- res = read_attr_from_file(path, macro_ok);
+ res = read_attr_from_file(path, flags);
} else if (direction == GIT_ATTR_CHECKIN) {
- res = read_attr_from_file(path, macro_ok);
+ res = read_attr_from_file(path, flags);
if (!res)
/*
* There is no checked out .gitattributes file
@@ -769,12 +784,12 @@ static struct attr_stack *read_attr(struct index_state *istate,
* We allow operation in a sparsely checked out
* work tree, so read from it.
*/
- res = read_attr_from_index(istate, path, macro_ok);
+ res = read_attr_from_index(istate, path, flags);
}
}
if (!res)
- res = xcalloc(1, sizeof(*res));
+ CALLOC_ARRAY(res, 1);
return res;
}
@@ -844,6 +859,7 @@ static void bootstrap_attr_stack(struct index_state *istate,
struct attr_stack **stack)
{
struct attr_stack *e;
+ unsigned flags = READ_ATTR_MACRO_OK;
if (*stack)
return;
@@ -854,27 +870,27 @@ static void bootstrap_attr_stack(struct index_state *istate,
/* system-wide frame */
if (git_attr_system()) {
- e = read_attr_from_file(git_etc_gitattributes(), 1);
+ e = read_attr_from_file(git_etc_gitattributes(), flags);
push_stack(stack, e, NULL, 0);
}
/* home directory */
if (get_home_gitattributes()) {
- e = read_attr_from_file(get_home_gitattributes(), 1);
+ e = read_attr_from_file(get_home_gitattributes(), flags);
push_stack(stack, e, NULL, 0);
}
/* root directory */
- e = read_attr(istate, GITATTRIBUTES_FILE, 1);
+ e = read_attr(istate, GITATTRIBUTES_FILE, flags | READ_ATTR_NOFOLLOW);
push_stack(stack, e, xstrdup(""), 0);
/* info frame */
if (startup_info->have_repository)
- e = read_attr_from_file(git_path_info_attributes(), 1);
+ e = read_attr_from_file(git_path_info_attributes(), flags);
else
e = NULL;
if (!e)
- e = xcalloc(1, sizeof(struct attr_stack));
+ CALLOC_ARRAY(e, 1);
push_stack(stack, e, NULL, 0);
}
@@ -956,7 +972,7 @@ static void prepare_attr_stack(struct index_state *istate,
strbuf_add(&pathbuf, path + pathbuf.len, (len - pathbuf.len));
strbuf_addf(&pathbuf, "/%s", GITATTRIBUTES_FILE);
- next = read_attr(istate, pathbuf.buf, 0);
+ next = read_attr(istate, pathbuf.buf, READ_ATTR_NOFOLLOW);
/* reset the pathbuf to not include "/.gitattributes" */
strbuf_setlen(&pathbuf, len);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-21 21:04:54 +0300