commit 8b88ab07f7cfc216407a88d75ad8f0546224c8d7
parent 2779ceeb125e603ea667171d9362e0b766b7abae
Author: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Fri, 20 Oct 2000 14:36:10 -0200
more controled use of `sprintf'
Diffstat:
3 files changed, 26 insertions(+), 14 deletions(-)
diff --git a/lobject.c b/lobject.c
@@ -1,5 +1,5 @@
/*
-** $Id: lobject.c,v 1.53 2000/10/09 13:47:32 roberto Exp roberto $
+** $Id: lobject.c,v 1.54 2000/10/10 19:53:20 roberto Exp roberto $
** Some generic functions over Lua objects
** See Copyright Notice in lua.h
*/
@@ -76,10 +76,13 @@ int luaO_str2d (const char *s, Number *result) { /* LUA_NUMBER */
}
+/* maximum length of a string format for `luaO_verror' */
+#define MAX_VERROR 280
+
/* this function needs to handle only '%d' and '%.XXs' formats */
void luaO_verror (lua_State *L, const char *fmt, ...) {
va_list argp;
- char buff[600]; /* to hold formatted message */
+ char buff[MAX_VERROR]; /* to hold formatted message */
va_start(argp, fmt);
vsprintf(buff, fmt, argp);
va_end(argp);
@@ -88,8 +91,10 @@ void luaO_verror (lua_State *L, const char *fmt, ...) {
void luaO_chunkid (char *out, const char *source, int bufflen) {
- if (*source == '=')
- sprintf(out, "%.*s", bufflen-1, source+1); /* remove first char */
+ if (*source == '=') {
+ strncpy(out, source+1, bufflen); /* remove first char */
+ out[bufflen-1] = '\0'; /* ensures null termination */
+ }
else {
if (*source == '@') {
int l;
@@ -98,19 +103,23 @@ void luaO_chunkid (char *out, const char *source, int bufflen) {
l = strlen(source);
if (l>bufflen) {
source += (l-bufflen); /* get last part of file name */
- sprintf(out, "file `...%s'", source);
+ sprintf(out, "file `...%.99s'", source);
}
else
- sprintf(out, "file `%s'", source);
+ sprintf(out, "file `%.99s'", source);
}
else {
int len = strcspn(source, "\n"); /* stop at first newline */
bufflen -= sizeof("string \"%.*s...\"");
if (len > bufflen) len = bufflen;
- if (source[len] != '\0') /* must truncate? */
- sprintf(out, "string \"%.*s...\"", len, source);
+ if (source[len] != '\0') { /* must truncate? */
+ strcpy(out, "string \"");
+ out += strlen(out);
+ strncpy(out, source, len);
+ strcpy(out+len, "...\"");
+ }
else
- sprintf(out, "string \"%s\"", source);
+ sprintf(out, "string \"%.99s\"", source);
}
}
}
diff --git a/lua.c b/lua.c
@@ -1,5 +1,5 @@
/*
-** $Id: lua.c,v 1.53 2000/10/09 15:46:43 roberto Exp roberto $
+** $Id: lua.c,v 1.54 2000/10/17 13:36:24 roberto Exp roberto $
** Lua stand-alone interpreter
** See Copyright Notice in lua.h
*/
@@ -115,7 +115,7 @@ static void print_message (void) {
static void print_version (void) {
- printf("%s %s\n", LUA_VERSION, LUA_COPYRIGHT);
+ printf("%.80s %.80s\n", LUA_VERSION, LUA_COPYRIGHT);
}
@@ -255,7 +255,7 @@ static int handle_argv (char *argv[], struct Options *opt) {
return EXIT_FAILURE;
}
if (ldo(lua_dostring, argv[i]) != 0) {
- fprintf(stderr, "lua: error running argument `%s'\n", argv[i]);
+ fprintf(stderr, "lua: error running argument `%.99s'\n", argv[i]);
return EXIT_FAILURE;
}
break;
@@ -289,7 +289,7 @@ static void getstacksize (int argc, char *argv[], struct Options *opt) {
if (argc >= 2 && argv[1][0] == '-' && argv[1][1] == 's') {
int stacksize = atoi(&argv[1][2]);
if (stacksize <= 0) {
- fprintf(stderr, "lua: invalid stack size ('%s')\n", &argv[1][2]);
+ fprintf(stderr, "lua: invalid stack size ('%.20s')\n", &argv[1][2]);
exit(EXIT_FAILURE);
}
opt->stacksize = stacksize;
diff --git a/lzio.h b/lzio.h
@@ -1,5 +1,5 @@
/*
-** $Id: lzio.h,v 1.5 1999/08/16 20:52:00 roberto Exp roberto $
+** $Id: lzio.h,v 1.6 2000/05/24 13:54:49 roberto Exp roberto $
** Buffered streams
** See Copyright Notice in lua.h
*/
@@ -33,9 +33,12 @@ size_t zread (ZIO* z, void* b, size_t n); /* read next n bytes */
#define zname(z) ((z)->name)
+
/* --------- Private Part ------------------ */
+#ifndef ZBSIZE
#define ZBSIZE 256 /* buffer size */
+#endif
struct zio {
size_t n; /* bytes still unread */