Virgin import of bsnmpd 1.7

1 files changed, 194 insertions, 0 deletions

diff --git a/contrib/bsnmp/lib/support.c b/contrib/bsnmp/lib/support.c
new file mode 100644
index 0000000..391c152
--- /dev/null
+++ b/contrib/bsnmp/lib/support.c
@@ -0,0 +1,194 @@
+/* 
+ * Copyright (C) 2004
+ * 	Hartmut Brandt.
+ * 	All rights reserved.
+ * 
+ * Author: Harti Brandt <harti@freebsd.org>
+ * 
+ * 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 AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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.
+ *
+ * $Begemot: bsnmp/lib/support.c,v 1.1 2004/08/06 08:47:58 brandt Exp $
+ *
+ * Functions that are missing on certain systems.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <string.h>
+#include "support.h"
+
+#ifndef HAVE_ERR_H
+
+void
+warnx(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	fprintf(stderr, "warning: ");
+	vfprintf(stderr, fmt, ap);
+	fprintf(stderr, "\n");
+	va_end(ap);
+}
+
+void
+warn(const char *fmt, ...)
+{
+	va_list ap;
+	int e = errno;
+
+	va_start(ap, fmt);
+	fprintf(stderr, "warning: ");
+	vfprintf(stderr, fmt, ap);
+	fprintf(stderr, ": %s\n", strerror(e));
+	va_end(ap);
+}
+
+void
+errx(int code, const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	fprintf(stderr, "error: ");
+	vfprintf(stderr, fmt, ap);
+	fprintf(stderr, "\n");
+	va_end(ap);
+	exit(code);
+}
+
+void
+err(int code, const char *fmt, ...)
+{
+	va_list ap;
+	int e = errno;
+
+	va_start(ap, fmt);
+	fprintf(stderr, "error: ");
+	vfprintf(stderr, fmt, ap);
+	fprintf(stderr, ": %s\n", strerror(e));
+	va_end(ap);
+	exit(code);
+}
+
+#endif
+
+#ifndef HAVE_STRLCPY
+
+size_t
+strlcpy(char *dst, const char *src, size_t len)
+{
+	size_t ret = strlen(dst);
+
+	while (len > 1) {
+		*dst++ = *src++;
+		len--;
+	}
+	if (len > 0)
+		*dst = '\0';
+	return (ret);
+}
+
+#endif
+
+#ifndef HAVE_GETADDRINFO
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+
+extern int h_nerr;
+extern int h_errno;
+extern const char *h_errlist[];
+
+/*
+ * VERY poor man's implementation
+ */
+int
+getaddrinfo(const char *host, const char *port, const struct addrinfo *hints,
+    struct addrinfo **res)
+{
+	struct hostent *hent;
+	struct sockaddr_in *s;
+	struct servent *sent;
+
+	if ((hent = gethostbyname(host)) == NULL)
+		return (h_errno);
+	if (hent->h_addrtype != hints->ai_family)
+		return (HOST_NOT_FOUND);
+	if (hent->h_addrtype != AF_INET)
+		return (HOST_NOT_FOUND);
+
+	if ((*res = malloc(sizeof(**res))) == NULL)
+		return (HOST_NOT_FOUND);
+
+	(*res)->ai_flags = hints->ai_flags;
+	(*res)->ai_family = hints->ai_family;
+	(*res)->ai_socktype = hints->ai_socktype;
+	(*res)->ai_protocol = hints->ai_protocol;
+	(*res)->ai_next = NULL;
+
+	if (((*res)->ai_addr = malloc(sizeof(struct sockaddr_in))) == NULL) {
+		freeaddrinfo(*res);
+		return (HOST_NOT_FOUND);
+	}
+	(*res)->ai_addrlen = sizeof(struct sockaddr_in);
+	s = (struct sockaddr_in *)(*res)->ai_addr;
+	s->sin_family = hints->ai_family;
+	s->sin_len = sizeof(*s);
+	memcpy(&s->sin_addr, hent->h_addr, 4);
+
+	if ((sent = getservbyname(port, NULL)) == NULL) {
+		freeaddrinfo(*res);
+		return (HOST_NOT_FOUND);
+	}
+	s->sin_port = sent->s_port;
+
+	return (0);
+}
+
+const char *
+gai_strerror(int e)
+{
+
+	if (e < 0 || e >= h_nerr)
+		return ("unknown error");
+	return (h_errlist[e]);
+}
+
+void
+freeaddrinfo(struct addrinfo *p)
+{
+	struct addrinfo *next;
+
+	while (p != NULL) {
+		next = p->ai_next;
+		if (p->ai_addr != NULL)
+			free(p->ai_addr);
+		free(p);
+		p = next;
+	}
+}
+
+#endif