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bug: by-one error when creating short source names (luaO_chunkid)

This commit is contained in:
Roberto Ierusalimschy 2010-10-29 13:54:55 -02:00
parent ba8dca00ac
commit c6ef3e2672
1 changed files with 2 additions and 2 deletions
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4
lobject.c
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@ -1,5 +1,5 @@
/*
** $Id: lobject.c,v 2.41 2010/10/28 15:39:03 roberto Exp roberto $
** $Id: lobject.c,v 2.42 2010/10/29 11:13:14 roberto Exp roberto $
** Some generic functions over Lua objects
** See Copyright Notice in lua.h
*/
@ -226,7 +226,7 @@ void luaO_chunkid (char *out, const char *source, size_t bufflen) {
else { /* string; format as [string "source"] */
const char *nl = strchr(source, '\n'); /* find first new line (if any) */
addstr(out, PRE, LL(PRE)); /* add prefix */
bufflen -= LL(PRE RETS POS); /* save space for prefix+suffix */
bufflen -= LL(PRE RETS POS) + 1; /* save space for prefix+suffix+'\0' */
if (l < bufflen && nl == NULL) { /* small one-line source? */
addstr(out, source, l); /* keep it */
}