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[src/trunk]: src/lib/libedit Change strncpy to either memcpy (when we know th...
details: https://anonhg.NetBSD.org/src/rev/bc3f789735bb
branches: trunk
changeset: 460117:bc3f789735bb
user: christos <christos%NetBSD.org@localhost>
date: Tue Oct 08 19:17:57 2019 +0000
description:
Change strncpy to either memcpy (when we know the len), or strlcpy (when
we used to NUL terminate explicitly.
diffstat:
lib/libedit/filecomplete.c | 14 ++++++--------
lib/libedit/history.c | 14 ++++++++------
lib/libedit/readline.c | 18 +++++++-----------
3 files changed, 21 insertions(+), 25 deletions(-)
diffs (170 lines):
diff -r 4d60a8195719 -r bc3f789735bb lib/libedit/filecomplete.c
--- a/lib/libedit/filecomplete.c Tue Oct 08 18:50:44 2019 +0000
+++ b/lib/libedit/filecomplete.c Tue Oct 08 19:17:57 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: filecomplete.c,v 1.58 2019/09/08 05:50:58 abhinav Exp $ */
+/* $NetBSD: filecomplete.c,v 1.59 2019/10/08 19:17:57 christos Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
@@ -31,7 +31,7 @@
#include "config.h"
#if !defined(lint) && !defined(SCCSID)
-__RCSID("$NetBSD: filecomplete.c,v 1.58 2019/09/08 05:50:58 abhinav Exp $");
+__RCSID("$NetBSD: filecomplete.c,v 1.59 2019/10/08 19:17:57 christos Exp $");
#endif /* not lint && not SCCSID */
#include <sys/types.h>
@@ -86,8 +86,7 @@
temp = el_calloc(len, sizeof(*temp));
if (temp == NULL)
return NULL;
- (void)strncpy(temp, txt + 1, len - 2);
- temp[len - 2] = '\0';
+ (void)strlcpy(temp, txt + 1, len - 2);
}
if (temp[0] == 0) {
#ifdef HAVE_GETPW_R_POSIX
@@ -354,8 +353,7 @@
return NULL;
}
dirname = nptr;
- (void)strncpy(dirname, text, len);
- dirname[len] = '\0';
+ (void)strlcpy(dirname, text, len);
} else {
el_free(filename);
if (*text == 0)
@@ -464,6 +462,7 @@
*/
char ** completion_matches(const char *, char *(*)(const char *, int));
char **
+/*###467 [lint] completion_matches arg 1 declared inconsistently (pointer to const char != pointer to char) filecomplete.c(467) :: readline.c?(53)%%%*/
completion_matches(const char *text, char *(*genfunc)(const char *, int))
{
char **match_list = NULL, *retstr, *prevstr;
@@ -509,8 +508,7 @@
el_free(match_list);
return NULL;
}
- (void)strncpy(retstr, match_list[1], max_equal);
- retstr[max_equal] = '\0';
+ (void)strlcpy(retstr, match_list[1], max_equal);
match_list[0] = retstr;
/* add NULL as last pointer to the array */
diff -r 4d60a8195719 -r bc3f789735bb lib/libedit/history.c
--- a/lib/libedit/history.c Tue Oct 08 18:50:44 2019 +0000
+++ b/lib/libedit/history.c Tue Oct 08 19:17:57 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: history.c,v 1.62 2018/09/13 09:03:40 kre Exp $ */
+/* $NetBSD: history.c,v 1.63 2019/10/08 19:17:57 christos Exp $ */
/*-
* Copyright (c) 1992, 1993
@@ -37,7 +37,7 @@
#if 0
static char sccsid[] = "@(#)history.c 8.1 (Berkeley) 6/4/93";
#else
-__RCSID("$NetBSD: history.c,v 1.62 2018/09/13 09:03:40 kre Exp $");
+__RCSID("$NetBSD: history.c,v 1.63 2019/10/08 19:17:57 christos Exp $");
#endif
#endif /* not lint && not SCCSID */
@@ -411,21 +411,23 @@
history_def_add(void *p, TYPE(HistEvent) *ev, const Char *str)
{
history_t *h = (history_t *) p;
- size_t len;
+ size_t len, elen, slen;
Char *s;
HistEventPrivate *evp = (void *)&h->cursor->ev;
if (h->cursor == &h->list)
return history_def_enter(p, ev, str);
- len = Strlen(evp->str) + Strlen(str) + 1;
+ elen = Strlen(evp->str);
+ slen = Strlen(str);
+ len = elen + slen + 1;
s = h_malloc(len * sizeof(*s));
if (s == NULL) {
he_seterrev(ev, _HE_MALLOC_FAILED);
return -1;
}
- (void) Strncpy(s, h->cursor->ev.str, len);
+ memcpy(s, evp->str, elen * sizeof(*s));
+ memcpy(s + elen, str, slen * sizeof(*s));
s[len - 1] = '\0';
- (void) Strncat(s, str, len - Strlen(s) - 1);
h_free(evp->str);
evp->str = s;
*ev = h->cursor->ev;
diff -r 4d60a8195719 -r bc3f789735bb lib/libedit/readline.c
--- a/lib/libedit/readline.c Tue Oct 08 18:50:44 2019 +0000
+++ b/lib/libedit/readline.c Tue Oct 08 19:17:57 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: readline.c,v 1.157 2019/08/21 11:11:48 christos Exp $ */
+/* $NetBSD: readline.c,v 1.158 2019/10/08 19:17:57 christos Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
@@ -31,7 +31,7 @@
#include "config.h"
#if !defined(lint) && !defined(SCCSID)
-__RCSID("$NetBSD: readline.c,v 1.157 2019/08/21 11:11:48 christos Exp $");
+__RCSID("$NetBSD: readline.c,v 1.158 2019/10/08 19:17:57 christos Exp $");
#endif /* not lint && not SCCSID */
#include <sys/types.h>
@@ -521,7 +521,7 @@
s = str;
while (*s) {
if (*s == *what && !strncmp(s, what, what_len)) {
- (void)strncpy(r, with, with_len);
+ memcpy(r, with, with_len);
r += with_len;
s += what_len;
if (!globally) {
@@ -607,8 +607,7 @@
else {
if ((pat = el_calloc(len + 1, sizeof(*pat))) == NULL)
return NULL;
- (void)strncpy(pat, cmd + begin, len);
- pat[len] = '\0';
+ (void)strlcpy(pat, cmd + begin, len);
}
if (history(h, &ev, H_CURR) != 0) {
@@ -702,8 +701,7 @@
if ((aptr = el_calloc(offs + 1, sizeof(*aptr)))
== NULL)
return -1;
- (void)strncpy(aptr, command, offs);
- aptr[offs] = '\0';
+ strlcpy(aptr, command, offs);
idx = 1;
} else {
int qchar;
@@ -960,9 +958,8 @@
} \
result = nresult; \
} \
- (void)strncpy(&result[idx], what, len); \
+ (void)strlcpy(&result[idx], what, len); \
idx += len; \
- result[idx] = '\0'; \
}
result = NULL;
@@ -1150,8 +1147,7 @@
el_free(result);
return NULL;
}
- (void)strncpy(temp, &str[start], len);
- temp[len] = '\0';
+ (void)strlcpy(temp, &str[start], len);
result[idx++] = temp;
result[idx] = NULL;
if (str[i])
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