--- /dev/null
+/* $OpenBSD: http.c,v 1.1 1996/09/03 18:00:06 deraadt Exp $ */
+
+/*
+ * Copyright (c) 1996 Theo de Raadt
+ * Copyright (c) 1996 Brian Mitchell
+ *
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * 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.
+ */
+
+#include <sys/types.h>
+#include <sys/file.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <netdb.h>
+#include <pwd.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/*
+ * This function lets you retrieve files from the WWW. It will accept
+ * any http:// url. It conects and retrieves the file, saving it in
+ * the current directory.
+ *
+ * Limitations:
+ * http://host does not work, nor http://host/ - you have to specifically
+ * specify the filename you want to transfer.
+ */
+int
+http_fetch(url)
+ char *url;
+{
+ char *hostname, *filename, basename[MAXPATHLEN] = "/";
+ char buf[8192], *bufp, *req = NULL;
+ struct sockaddr_in addr;
+ struct hostent *he;
+ FILE *write_to;
+ char *s, *p;
+ int bytes, c, d;
+ int sock = -1, file = -1, ret = 1;
+
+ s = url + strlen("http://");
+ p = strchr(s, '/');
+ if (p)
+ *p = '\0';
+ else
+ p = s + strlen(s);
+ if (p - s > MAXHOSTNAMELEN-1) {
+ warn("hostname too long");
+ return (1);
+ }
+ hostname = s;
+ filename = p + 1;
+
+ p = strrchr(filename, '/');
+ if (p == NULL) {
+ if (strlen(s) > MAXPATHLEN-1) {
+ warn("filename too long");
+ return (1);
+ }
+ strcpy(basename, filename);
+ } else {
+ p++;
+ if (strlen(p) > MAXPATHLEN-1) {
+ warn("filename too long");
+ return (1);
+ }
+ strcpy(basename, p);
+ }
+ if (strlen(basename) == 0)
+ strcpy(basename, "index.html");
+
+ req = (char *)malloc(sizeof("GET ") + strlen(filename) +3);
+ if (!req) {
+ warn("no memory");
+ return (1);
+ }
+ sprintf(req, "GET /%s\n", filename);
+
+ he = gethostbyname(hostname);
+ if (!he) {
+ perror("gethostbyname");
+ goto die;
+ }
+
+ sock = socket(AF_INET, SOCK_STREAM, 0);
+ if (sock == -1) {
+ perror("socket");
+ goto die;
+ }
+
+ memset(&addr, 0, sizeof addr);
+ addr.sin_family = he->h_addrtype;
+ addr.sin_port = htons(80);
+ memcpy(&addr.sin_addr, he->h_addr, he->h_length);
+
+ if (connect(sock, (struct sockaddr *)&addr, sizeof addr) == -1) {
+ perror("connect");
+ goto die;
+ }
+ printf("Connected to %s.\n", hostname);
+
+ printf("Retrieving using: %s", req);
+ for (bufp = req, c = strlen(bufp); c > 0; c -= d, bufp += d) {
+ if ((d = write(sock, bufp, c)) <= 0)
+ break;
+ }
+ if (d == -1) {
+ perror("sending command");
+ goto die;
+ }
+
+ file = open(basename, O_CREAT|O_WRONLY|O_TRUNC, 0666);
+ if (!file) {
+ perror("fopen");
+ goto die;
+ }
+
+ bytes = 0;
+ while ((c = read(sock, buf, sizeof (buf))) > 0) {
+ bytes += c;
+ for (bufp = buf; c > 0; c -= d, bufp += d)
+ if ((d = write(file, bufp, c)) <= 0)
+ break;
+ }
+ if (d == -1) {
+ perror("failed to receive correctly");
+ goto die;
+ }
+ printf("Success, closing connection.\n");
+ ret = 0;
+die:
+ if (sock != -1)
+ close(sock);
+ if (file != -1)
+ close(file);
+ if (req)
+ free(req);
+ return (ret);
+}
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