b54c312497
2 known bugs: . Build doesn't copy libssh* to the destination directory. + workaround is to copy them from the lib directory to destination and recreate links . ssh_config and sshd_config don't install + workaround is to copy them manually Note the software doesn't build to completion until you do the workarounds. Still trying to sort this out, but wanted to get these changes up for more visibility and collaboration.
139 lines
3.0 KiB
C
139 lines
3.0 KiB
C
/* $OpenBSD: sshbuf-misc.c,v 1.4 2015/03/24 20:03:44 markus Exp $ */
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/*
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* Copyright (c) 2011 Damien Miller
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "includes.h"
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <errno.h>
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#include <stdlib.h>
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#endif
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#include <stdio.h>
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#include <limits.h>
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#include <string.h>
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#include <resolv.h>
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#include <ctype.h>
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#include "ssherr.h"
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#define SSHBUF_INTERNAL
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#include "sshbuf.h"
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void
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sshbuf_dump_data(const void *s, size_t len, FILE *f)
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{
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size_t i, j;
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const u_char *p = (const u_char *)s;
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for (i = 0; i < len; i += 16) {
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fprintf(f, "%.4zu: ", i);
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for (j = i; j < i + 16; j++) {
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if (j < len)
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fprintf(f, "%02x ", p[j]);
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else
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fprintf(f, " ");
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}
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fprintf(f, " ");
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for (j = i; j < i + 16; j++) {
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if (j < len) {
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if (isascii(p[j]) && isprint(p[j]))
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fprintf(f, "%c", p[j]);
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else
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fprintf(f, ".");
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}
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}
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fprintf(f, "\n");
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}
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}
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void
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sshbuf_dump(struct sshbuf *buf, FILE *f)
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{
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fprintf(f, "buffer %p len = %zu\n", buf, sshbuf_len(buf));
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sshbuf_dump_data(sshbuf_ptr(buf), sshbuf_len(buf), f);
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}
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char *
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sshbuf_dtob16(struct sshbuf *buf)
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{
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size_t i, j, len = sshbuf_len(buf);
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const u_char *p = sshbuf_ptr(buf);
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char *ret;
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const char hex[] = "0123456789abcdef";
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if (len == 0)
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return strdup("");
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if (SIZE_MAX / 2 <= len || (ret = malloc(len * 2 + 1)) == NULL)
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return NULL;
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for (i = j = 0; i < len; i++) {
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ret[j++] = hex[(p[i] >> 4) & 0xf];
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ret[j++] = hex[p[i] & 0xf];
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}
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ret[j] = '\0';
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return ret;
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}
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char *
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sshbuf_dtob64(struct sshbuf *buf)
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{
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size_t len = sshbuf_len(buf), plen;
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const u_char *p = sshbuf_ptr(buf);
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char *ret;
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int r;
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if (len == 0)
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return strdup("");
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plen = ((len + 2) / 3) * 4 + 1;
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if (SIZE_MAX / 2 <= len || (ret = malloc(plen)) == NULL)
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return NULL;
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if ((r = b64_ntop(p, len, ret, plen)) == -1) {
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bzero(ret, plen);
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free(ret);
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return NULL;
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}
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return ret;
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}
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int
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sshbuf_b64tod(struct sshbuf *buf, const char *b64)
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{
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size_t plen = strlen(b64);
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int nlen, r;
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u_char *p;
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if (plen == 0)
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return 0;
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if ((p = malloc(plen)) == NULL)
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return SSH_ERR_ALLOC_FAIL;
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if ((nlen = b64_pton(b64, p, plen)) < 0) {
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bzero(p, plen);
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free(p);
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return SSH_ERR_INVALID_FORMAT;
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}
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if ((r = sshbuf_put(buf, p, nlen)) < 0) {
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bzero(p, plen);
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free(p);
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return r;
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}
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bzero(p, plen);
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free(p);
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return 0;
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}
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