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authorMatt Johnston <matt@ucc.asn.au>2004-06-01 02:46:09 +0000
committerMatt Johnston <matt@ucc.asn.au>2004-06-01 02:46:09 +0000
commitd53c6e53ee09a98198f57c5dfa18416040d3ce99 (patch)
tree3b5a173c356f867b94df3873b57ff36d33129ea7 /scpmisc.c
downloaddropbear-d53c6e53ee09a98198f57c5dfa18416040d3ce99.tar.gz
Makefile.in contains updated files required
Diffstat (limited to 'scpmisc.c')
-rw-r--r--scpmisc.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/scpmisc.c b/scpmisc.c
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+/*
+ * Copyright (c) 2000 Markus Friedl. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*RCSID("$OpenBSD: misc.c,v 1.22 2003/09/18 08:49:45 markus Exp $");*/
+
+/* For xmalloc, xfree etc:
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+ * All rights reserved
+ * Versions of malloc and friends that check their results, and never return
+ * failure (they call fatal if they encounter an error).
+ *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose. Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
+ */
+
+/*RCSID("$OpenBSD: xmalloc.c,v 1.16 2001/07/23 18:21:46 stevesk Exp $");*/
+
+#include "includes.h"
+#include "scpmisc.h"
+
+void *
+xmalloc(size_t size)
+{
+ void *ptr;
+
+ if (size == 0) {
+ fprintf(stderr, "xmalloc: zero size\n");
+ exit(EXIT_FAILURE);
+ }
+ ptr = malloc(size);
+ if (ptr == NULL) {
+ fprintf(stderr, "xmalloc: out of memory (allocating %lu bytes)\n", (u_long) size);
+ exit(EXIT_FAILURE);
+ }
+ return ptr;
+}
+
+void *
+xrealloc(void *ptr, size_t new_size)
+{
+ void *new_ptr;
+
+ if (new_size == 0) {
+ fprintf(stderr, "xrealloc: zero size\n");
+ exit(EXIT_FAILURE);
+ }
+ if (ptr == NULL)
+ new_ptr = malloc(new_size);
+ else
+ new_ptr = realloc(ptr, new_size);
+ if (new_ptr == NULL) {
+ fprintf(stderr, "xrealloc: out of memory (new_size %lu bytes)\n", (u_long) new_size);
+ exit(EXIT_FAILURE);
+ }
+ return new_ptr;
+}
+
+void
+xfree(void *ptr)
+{
+ if (ptr == NULL) {
+ fprintf(stderr, "xfree: NULL pointer given as argument\n");
+ exit(EXIT_FAILURE);
+ }
+ free(ptr);
+}
+
+char *
+xstrdup(const char *str)
+{
+ size_t len;
+ char *cp;
+
+ len = strlen(str) + 1;
+ cp = xmalloc(len);
+ strncpy(cp, str, len);
+ return cp;
+}
+
+char *
+cleanhostname(char *host)
+{
+ if (*host == '[' && host[strlen(host) - 1] == ']') {
+ host[strlen(host) - 1] = '\0';
+ return (host + 1);
+ } else
+ return host;
+}
+
+char *
+colon(char *cp)
+{
+ int flag = 0;
+
+ if (*cp == ':') /* Leading colon is part of file name. */
+ return (0);
+ if (*cp == '[')
+ flag = 1;
+
+ for (; *cp; ++cp) {
+ if (*cp == '@' && *(cp+1) == '[')
+ flag = 1;
+ if (*cp == ']' && *(cp+1) == ':' && flag)
+ return (cp+1);
+ if (*cp == ':' && !flag)
+ return (cp);
+ if (*cp == '/')
+ return (0);
+ }
+ return (0);
+}
+
+/* function to assist building execv() arguments */
+void
+addargs(arglist *args, char *fmt, ...)
+{
+ va_list ap;
+ char buf[1024];
+ int nalloc;
+
+ va_start(ap, fmt);
+ vsnprintf(buf, sizeof(buf), fmt, ap);
+ va_end(ap);
+
+ nalloc = args->nalloc;
+ if (args->list == NULL) {
+ nalloc = 32;
+ args->num = 0;
+ } else if (args->num+2 >= nalloc)
+ nalloc *= 2;
+
+ args->list = xrealloc(args->list, nalloc * sizeof(char *));
+ args->nalloc = nalloc;
+ args->list[args->num++] = xstrdup(buf);
+ args->list[args->num] = NULL;
+}