enum config_error_action default_error_action;
int linenr;
int eof;
+ size_t total_len;
struct strbuf value;
struct strbuf var;
unsigned subsection_case_sensitive : 1;
{
struct config_include_data *inc = data;
const char *cond, *key;
- int cond_len;
+ size_t cond_len;
int ret;
/*
*
* store_key - pointer to char* which will hold a copy of the key with
* lowercase section and variable name
- * baselen - pointer to int which will hold the length of the
+ * baselen - pointer to size_t which will hold the length of the
* section + subsection part, can be NULL
*/
-static int git_config_parse_key_1(const char *key, char **store_key, int *baselen_, int quiet)
+static int git_config_parse_key_1(const char *key, char **store_key, size_t *baselen_, int quiet)
{
- int i, dot, baselen;
+ size_t i, baselen;
+ int dot;
const char *last_dot = strrchr(key, '.');
/*
return -CONFIG_INVALID_KEY;
}
-int git_config_parse_key(const char *key, char **store_key, int *baselen)
+int git_config_parse_key(const char *key, char **store_key, size_t *baselen)
{
return git_config_parse_key_1(key, store_key, baselen, 0);
}
c = '\r';
}
}
+
+ if (c != EOF && ++cf->total_len > INT_MAX) {
+ /*
+ * This is an absurdly long config file; refuse to parse
+ * further in order to protect downstream code from integer
+ * overflows. Note that we can't return an error specifically,
+ * but we can mark EOF and put trash in the return value,
+ * which will trigger a parse error.
+ */
+ cf->eof = 1;
+ return 0;
+ }
+
if (c == '\n')
cf->linenr++;
if (c == EOF) {
const struct config_options *opts)
{
int comment = 0;
- int baselen = 0;
+ size_t baselen = 0;
struct strbuf *var = &cf->var;
int error_return = 0;
char *error_msg = NULL;
top->prev = cf;
top->linenr = 1;
top->eof = 0;
+ top->total_len = 0;
strbuf_init(&top->value, 1024);
strbuf_init(&top->var, 1024);
cf = top;
*/
struct config_store_data {
- int baselen;
+ size_t baselen;
char *key;
int do_not_match;
regex_t *value_regex;
const struct config_store_data *store)
{
const char *dot;
- int i;
+ size_t i;
struct strbuf sb = STRBUF_INIT;
dot = memchr(key, '.', store->baselen);
}
strbuf_addstr(&sb, "\"]\n");
} else {
- strbuf_addf(&sb, "[%.*s]\n", store->baselen, key);
+ strbuf_addch(&sb, '[');
+ strbuf_add(&sb, key, store->baselen);
+ strbuf_addstr(&sb, "]\n");
}
return sb;
{
int i;
ssize_t ret;
- int length = strlen(key + store->baselen + 1);
const char *quote = "";
struct strbuf sb = STRBUF_INIT;
if (i && value[i - 1] == ' ')
quote = "\"";
- strbuf_addf(&sb, "\t%.*s = %s",
- length, key + store->baselen + 1, quote);
+ strbuf_addf(&sb, "\t%s = %s", key + store->baselen + 1, quote);
for (i = 0; value[i]; i++)
switch (value[i]) {
int parse_config_key(const char *var,
const char *section,
- const char **subsection, int *subsection_len,
+ const char **subsection, size_t *subsection_len,
const char **key)
{
const char *dot;