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fix buffer growing code.

This commit is contained in:
christos 2011-07-27 02:18:30 +00:00
parent 0da54e076e
commit c76d71fc1a
1 changed files with 8 additions and 15 deletions
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21
lib/libedit/chartype.c
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@ -1,4 +1,4 @@
/* $NetBSD: chartype.c,v 1.4 2010/04/15 00:55:57 christos Exp $ */
/* $NetBSD: chartype.c,v 1.5 2011/07/27 02:18:30 christos Exp $ */
/*-
* Copyright (c) 2009 The NetBSD Foundation, Inc.
@ -38,7 +38,7 @@
*/
#include "config.h"
#if !defined(lint) && !defined(SCCSID)
__RCSID("$NetBSD: chartype.c,v 1.4 2010/04/15 00:55:57 christos Exp $");
__RCSID("$NetBSD: chartype.c,v 1.5 2011/07/27 02:18:30 christos Exp $");
#endif /* not lint && not SCCSID */
#include "el.h"
#include <stdlib.h>
@ -89,27 +89,20 @@ ct_encode_string(const Char *s, ct_buffer_t *conv)
dst = conv->cbuff;
while (*s) {
used = ct_encode_char(dst, (int)(conv->csize -
(dst - conv->cbuff)), *s);
if (used == -1) { /* failed to encode, need more buffer space */
used = conv->csize - (dst - conv->cbuff);
if (used < 5) {
used = dst - conv->cbuff;
ct_conv_buff_resize(conv, conv->csize + CT_BUFSIZ, 0);
if (!conv->cbuff)
return NULL;
dst = conv->cbuff + used;
/* don't increment s here - we want to retry it! */
}
else
used = ct_encode_char(dst, 5, *s);
if (used == -1) /* failed to encode, need more buffer space */
abort();
++s;
dst += used;
}
if (dst >= (conv->cbuff + conv->csize)) {
used = dst - conv->cbuff;
ct_conv_buff_resize(conv, conv->csize + 1, 0);
if (!conv->cbuff)
return NULL;
dst = conv->cbuff + used;
}
*dst = '\0';
return conv->cbuff;
}