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elua: use an appropriately sized buffer

This commit is contained in:
Daniel Kolesa 2014-05-06 16:14:20 +01:00 committed by Daniel Kolesa
parent 6220dd5968
commit dd8e3b433f
1 changed files with 13 additions and 3 deletions
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16
src/bin/elua/main.c
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@ -225,8 +225,9 @@ static int elua_exec(lua_State *L) {
return 1;
}
#else
char buf[4096]; /* temporary, only because Windows API is retarded */
char *cptr = buf;
char *buf, *cptr;
size_t buflen = 0;
int i;
STARTUPINFO si;
PROCESS_INFORMATION pi;
@ -234,7 +235,16 @@ static int elua_exec(lua_State *L) {
si.cb = sizeof(si);
ZeroMemory(&si, sizeof(pi));
int i;
for (i = 1; i < lua_gettop(L); ++i) {
buflen += lua_objlen(L, i + 1) + 2;
if (i != (lua_gettop(L) - 1)) {
buflen += 1
}
}
buf = alloca(buflen + 1);
cptr = buf;
for (i = 1; i < lua_gettop(L); ++i) {
size_t l;
const char *arg = lua_tolstring(L, i + 1, &l);