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Safer handling of argv, fixes crash on certain Macs and phases of the moon

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Solra Bizna 2020-06-15 10:32:32 -06:00
parent def8b9fef7
commit 3492636911
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GPG key ID: B8701CABB56C9F79
1 changed files with 3 additions and 3 deletions
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6
Sources/lua-5.3.5/src/lua.c
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@ -472,10 +472,10 @@ static int handle_script (lua_State *L, char **argv) {
** any invalid argument). 'first' returns the first not-handled argument
** (either the script name or a bad argument in case of error).
*/
static int collectargs (char **argv, int *first) {
static int collectargs (int argc, char **argv, int *first) {
int args = 0;
int i;
for (i = 1; argv[i] != NULL; i++) {
for (i = 1; i < argc; i++) {
*first = i;
if (argv[i][0] != '-') /* not an option? */
return args; /* stop handling options */
@ -565,7 +565,7 @@ static int pmain (lua_State *L) {
int argc = (int)lua_tointeger(L, 1);
char **argv = (char **)lua_touserdata(L, 2);
int script;
int args = collectargs(argv, &script);
int args = collectargs(argc, argv, &script);
luaL_checkversion(L); /* check that interpreter has correct version */
if (argv[0] && argv[0][0]) progname = argv[0];
if (args == has_error) { /* bad arg? */