зеркало из https://github.com/Azure/sonic-openssh.git
- markus@cvs.openbsd.org 2002/01/13 17:57:37
[auth2.c auth2-chall.c compat.c sshconnect2.c sshd.c]
use buffer API and avoid static strings of fixed size; ok provos@/mouring@
This commit is contained in:
Damien Miller
Родитель
1a534ae97f
Коммит
0e3b87279c
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@ -155,6 +155,10 @@
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- provos@cvs.openbsd.org 2002/01/13 17:27:07
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[ssh-agent.c]
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change to use queue.h macros; okay markus@
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- markus@cvs.openbsd.org 2002/01/13 17:57:37
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[auth2.c auth2-chall.c compat.c sshconnect2.c sshd.c]
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use buffer API and avoid static strings of fixed size;
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ok provos@/mouring@
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20020121
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@ -7303,4 +7307,4 @@
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- Wrote replacements for strlcpy and mkdtemp
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- Released 1.0pre1
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$Id: ChangeLog,v 1.1767 2002/01/22 12:26:13 djm Exp $
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$Id: ChangeLog,v 1.1768 2002/01/22 12:26:38 djm Exp $
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@ -23,10 +23,11 @@
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "includes.h"
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RCSID("$OpenBSD: auth2-chall.c,v 1.15 2002/01/11 23:02:51 markus Exp $");
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RCSID("$OpenBSD: auth2-chall.c,v 1.16 2002/01/13 17:57:37 markus Exp $");
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#include "ssh2.h"
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#include "auth.h"
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#include "buffer.h"
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#include "packet.h"
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#include "xmalloc.h"
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#include "dispatch.h"
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@ -68,22 +69,25 @@ static KbdintAuthctxt *
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kbdint_alloc(const char *devs)
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{
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KbdintAuthctxt *kbdintctxt;
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Buffer b;
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int i;
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char buf[1024];
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kbdintctxt = xmalloc(sizeof(KbdintAuthctxt));
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if (strcmp(devs, "") == 0) {
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buf[0] = '\0';
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buffer_init(&b);
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for (i = 0; devices[i]; i++) {
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if (i != 0)
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strlcat(buf, ",", sizeof(buf));
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strlcat(buf, devices[i]->name, sizeof(buf));
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if (buffer_len(&b) > 0)
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buffer_append(&b, ",", 1);
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buffer_append(&b, devices[i]->name,
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strlen(devices[i]->name));
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}
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debug("kbdint_alloc: devices '%s'", buf);
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kbdintctxt->devices = xstrdup(buf);
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buffer_append(&b, "\0", 1);
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kbdintctxt->devices = xstrdup(buffer_ptr(&b));
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buffer_free(&b);
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} else {
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kbdintctxt->devices = xstrdup(devs);
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}
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debug("kbdint_alloc: devices '%s'", kbdintctxt->devices);
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kbdintctxt->ctxt = NULL;
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kbdintctxt->device = NULL;
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27
auth2.c
27
auth2.c
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@ -23,7 +23,7 @@
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*/
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#include "includes.h"
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RCSID("$OpenBSD: auth2.c,v 1.81 2002/01/11 13:39:36 markus Exp $");
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RCSID("$OpenBSD: auth2.c,v 1.82 2002/01/13 17:57:37 markus Exp $");
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#include <openssl/evp.h>
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@ -588,31 +588,22 @@ static char *
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authmethods_get(void)
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{
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Authmethod *method = NULL;
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u_int size = 0;
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Buffer b;
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char *list;
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buffer_init(&b);
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for (method = authmethods; method->name != NULL; method++) {
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if (strcmp(method->name, "none") == 0)
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continue;
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if (method->enabled != NULL && *(method->enabled) != 0) {
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if (size != 0)
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size += strlen(DELIM);
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size += strlen(method->name);
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}
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}
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size++; /* trailing '\0' */
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list = xmalloc(size);
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list[0] = '\0';
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for (method = authmethods; method->name != NULL; method++) {
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if (strcmp(method->name, "none") == 0)
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continue;
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if (method->enabled != NULL && *(method->enabled) != 0) {
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if (list[0] != '\0')
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strlcat(list, DELIM, size);
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strlcat(list, method->name, size);
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if (buffer_len(&b) > 0)
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buffer_append(&b, ",", 1);
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buffer_append(&b, method->name, strlen(method->name));
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}
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}
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buffer_append(&b, "\0", 1);
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list = xstrdup(buffer_ptr(&b));
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buffer_free(&b);
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return list;
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}
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18
compat.c
18
compat.c
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@ -23,8 +23,9 @@
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*/
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#include "includes.h"
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RCSID("$OpenBSD: compat.c,v 1.56 2001/12/19 07:18:56 deraadt Exp $");
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RCSID("$OpenBSD: compat.c,v 1.57 2002/01/13 17:57:37 markus Exp $");
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#include "buffer.h"
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#include "packet.h"
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#include "xmalloc.h"
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#include "compat.h"
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@ -182,24 +183,25 @@ proto_spec(const char *spec)
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char *
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compat_cipher_proposal(char *cipher_prop)
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{
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Buffer b;
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char *orig_prop, *fix_ciphers;
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char *cp, *tmp;
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size_t len;
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if (!(datafellows & SSH_BUG_BIGENDIANAES))
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return(cipher_prop);
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len = strlen(cipher_prop) + 1;
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fix_ciphers = xmalloc(len);
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*fix_ciphers = '\0';
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buffer_init(&b);
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tmp = orig_prop = xstrdup(cipher_prop);
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while ((cp = strsep(&tmp, ",")) != NULL) {
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if (strncmp(cp, "aes", 3) && strncmp(cp, "rijndael", 8)) {
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if (*fix_ciphers)
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strlcat(fix_ciphers, ",", len);
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strlcat(fix_ciphers, cp, len);
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if (buffer_len(&b) > 0)
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buffer_append(&b, ",", 1);
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buffer_append(&b, cp, strlen(cp));
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}
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}
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buffer_append(&b, "\0", 1);
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fix_ciphers = xstrdup(buffer_ptr(&b));
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buffer_free(&b);
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xfree(orig_prop);
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debug2("Original cipher proposal: %s", cipher_prop);
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debug2("Compat cipher proposal: %s", fix_ciphers);
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@ -23,7 +23,7 @@
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*/
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#include "includes.h"
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RCSID("$OpenBSD: sshconnect2.c,v 1.92 2001/12/28 15:06:00 markus Exp $");
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RCSID("$OpenBSD: sshconnect2.c,v 1.93 2002/01/13 17:57:37 markus Exp $");
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#include <openssl/bn.h>
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#include <openssl/md5.h>
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@ -991,22 +991,23 @@ authmethod_get(char *authlist)
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}
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}
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#define DELIM ","
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static char *
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authmethods_get(void)
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{
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Authmethod *method = NULL;
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char buf[1024];
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Buffer b;
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char *list;
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buf[0] = '\0';
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buffer_init(&b);
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for (method = authmethods; method->name != NULL; method++) {
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if (authmethod_is_enabled(method)) {
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if (buf[0] != '\0')
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strlcat(buf, DELIM, sizeof buf);
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strlcat(buf, method->name, sizeof buf);
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if (buffer_len(&b) > 0)
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buffer_append(&b, ",", 1);
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buffer_append(&b, method->name, strlen(method->name));
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}
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}
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return xstrdup(buf);
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buffer_append(&b, "\0", 1);
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list = xstrdup(buffer_ptr(&b));
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buffer_free(&b);
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return list;
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}
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24
sshd.c
24
sshd.c
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@ -40,7 +40,7 @@
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*/
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#include "includes.h"
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RCSID("$OpenBSD: sshd.c,v 1.222 2001/12/28 14:50:54 markus Exp $");
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RCSID("$OpenBSD: sshd.c,v 1.223 2002/01/13 17:57:37 markus Exp $");
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#include <openssl/dh.h>
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#include <openssl/bn.h>
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@ -480,9 +480,11 @@ destroy_sensitive_data(void)
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static char *
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list_hostkey_types(void)
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{
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static char buf[1024];
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Buffer b;
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char *p;
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int i;
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buf[0] = '\0';
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buffer_init(&b);
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for (i = 0; i < options.num_host_key_files; i++) {
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Key *key = sensitive_data.host_keys[i];
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if (key == NULL)
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@ -490,16 +492,18 @@ list_hostkey_types(void)
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switch (key->type) {
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case KEY_RSA:
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case KEY_DSA:
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strlcat(buf, key_ssh_name(key), sizeof buf);
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strlcat(buf, ",", sizeof buf);
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if (buffer_len(&b) > 0)
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buffer_append(&b, ",", 1);
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p = key_ssh_name(key);
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buffer_append(&b, p, strlen(p));
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break;
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}
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}
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i = strlen(buf);
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if (i > 0 && buf[i-1] == ',')
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buf[i-1] = '\0';
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debug("list_hostkey_types: %s", buf);
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return buf;
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buffer_append(&b, "\0", 1);
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p = xstrdup(buffer_ptr(&b));
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buffer_free(&b);
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debug("list_hostkey_types: %s", p);
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return p;
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}
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static Key *
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