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Fix and clean up io_open after MI broke it horribly

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strcpy(NULL, filename); congrats
This commit is contained in:
Nipples the Enchilada 2016-01-25 22:48:45 -05:00 committed by RedEnchilada
parent 14dcd2404b
commit 9c299e5ad4
1 changed files with 23 additions and 23 deletions
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46
src/blua/liolib.c
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@ -166,16 +166,18 @@ static int StartsWith(const char *a, const char *b) // this is wolfs being lazy
static int io_open (lua_State *L) {
const char *filename = luaL_checkstring(L, 1);
int pass = 0; size_t i;
int length = strlen(filename) - 1;
char *splitter, *splitter2;
char *destFilename = NULL;
const char *mode = luaL_optstring(L, 2, "r");
FILE **pf;
const char *filename = luaL_checkstring(L, 1);
int pass = 0;
size_t i;
int length = strlen(filename);
char *splitter, *forward, *backward;
char *destFilename;
const char *mode = luaL_optstring(L, 2, "r");
for (i = 0; i < (sizeof (whitelist) / sizeof(const char *)); i++)
{
if (!stricmp(&filename[length - (strlen(whitelist[i]) - 1)], whitelist[i]))
if (!stricmp(&filename[length - strlen(whitelist[i])], whitelist[i]))
{
pass = 1;
break;
@ -187,29 +189,27 @@ static int io_open (lua_State *L) {
luaL_error(L,"access denied to %s", filename);
return pushresult(L,0,filename);
}
I_mkdir("luafiles", 0755);
strcpy(destFilename, filename); // copy file name to temp string
destFilename = va("luafiles"PATHSEP"%s", filename);
// Make directories as needed
splitter = destFilename;
while ((splitter = strchr(splitter, '/')))
forward = strchr(splitter, '/');
backward = strchr(splitter, '\\');
while ((splitter = (forward && backward) ? min(forward, backward) : (forward ?: backward)))
{
*splitter = 0;
I_mkdir(va("luafiles"PATHSEP"%s", destFilename), 0755);
I_mkdir(destFilename, 0755);
*splitter = '/';
splitter++;
forward = strchr(splitter, '/');
backward = strchr(splitter, '\\');
}
splitter2 = destFilename;
while ((splitter2 = strchr(splitter2, '\\')))
{
*splitter2 = 0;
I_mkdir(va("luafiles"PATHSEP"%s", destFilename), 0755);
*splitter2 = '\\';
splitter2++;
}
destFilename = va("luafiles"PATHSEP"%s", destFilename);
filename = destFilename;
pf = newfile(L);
*pf = fopen(filename, mode);
*pf = fopen(destFilename, mode);
return (*pf == NULL) ? pushresult(L, 0, filename) : 1;
}