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no more "getc" when testing if file exists

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This commit is contained in:
Roberto Ierusalimschy 2005-07-12 11:32:48 -03:00
parent 80ac5e83fd
commit 20131e54d3
1 changed files with 3 additions and 9 deletions
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12
lauxlib.c
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@ -1,5 +1,5 @@
/*
** $Id: lauxlib.c,v 1.138 2005/07/11 14:01:28 roberto Exp roberto $
** $Id: lauxlib.c,v 1.139 2005/07/11 16:41:51 roberto Exp roberto $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
@ -354,13 +354,10 @@ LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p,
static int readable (const char *fname) {
int err;
FILE *f = fopen(fname, "r"); /* try to open file */
if (f == NULL) return 0; /* open failed */
getc(f); /* try to read it */
err = ferror(f);
fclose(f);
return (err == 0);
return 1;
}
@ -369,11 +366,8 @@ LUALIB_API const char *luaL_searchpath (lua_State *L, const char *name,
const char *p = path;
for (;;) {
const char *fname;
if ((p = pushnexttemplate(L, p)) == NULL) {
lua_pushfstring(L, "no readable " LUA_QS " in path " LUA_QS "",
name, path);
if ((p = pushnexttemplate(L, p)) == NULL)
return NULL;
}
fname = luaL_gsub(L, lua_tostring(L, -1), LUA_PATH_MARK, name);
lua_remove(L, -2); /* remove path template */
if (readable(fname)) /* does file exist and is readable? */