src/usr.bin/ssh/compat.c - diff

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version 1.56, 2001/12/19 07:18:56

version 1.57, 2002/01/13 17:57:37

Line 25

#include "includes.h"

RCSID("$OpenBSD$");

#include "buffer.h"

#include "packet.h"

#include "xmalloc.h"

#include "compat.h"

Line 182

Line 183

char *

compat_cipher_proposal(char *cipher_prop)

{

Buffer b;

char *orig_prop, *fix_ciphers;

char *cp, *tmp;

size_t len;

if (!(datafellows & SSH_BUG_BIGENDIANAES))

return(cipher_prop);

len = strlen(cipher_prop) + 1;

buffer_init(&b);

fix_ciphers = xmalloc(len);

*fix_ciphers = '\0';

tmp = orig_prop = xstrdup(cipher_prop);

while ((cp = strsep(&tmp, ",")) != NULL) {

if (strncmp(cp, "aes", 3) && strncmp(cp, "rijndael", 8)) {

if (*fix_ciphers)

if (buffer_len(&b) > 0)

strlcat(fix_ciphers, ",", len);

buffer_append(&b, ",", 1);

strlcat(fix_ciphers, cp, len);

buffer_append(&b, cp, strlen(cp));

}

buffer_append(&b, "\0", 1);

fix_ciphers = xstrdup(buffer_ptr(&b));

buffer_free(&b);

xfree(orig_prop);

debug2("Original cipher proposal: %s", cipher_prop);

debug2("Compat cipher proposal: %s", fix_ciphers);