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-rw-r--r--request.c133
1 files changed, 133 insertions, 0 deletions
diff --git a/request.c b/request.c
new file mode 100644
index 0000000..f5d5f77
--- /dev/null
+++ b/request.c
@@ -0,0 +1,133 @@
+/* $Id$ */
+/*
+ * Copyright (c) 2004 demon <demon@vhost.dyndns.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "request.h"
+#include "connect.h"
+#include "version.h"
+
+extern int debug;
+extern int verbose;
+
+#define BUFLEN 1024
+
+static int
+build_request(struct dd_request *req, char *buf)
+{
+ snprintf(buf, BUFLEN, "GET /nic/update?");
+ if (req->system != NULL)
+ snprintf(buf + strlen(buf), BUFLEN - strlen(buf),
+ "system=%s&", req->system);
+ snprintf(buf + strlen(buf), BUFLEN - strlen(buf),
+ "hostname=%s", req->hostname);
+ if (req->myip != NULL)
+ snprintf(buf + strlen(buf), BUFLEN - strlen(buf),
+ "&myip=%s", req->myip);
+ if (req->wildcard != NULL)
+ snprintf(buf + strlen(buf), BUFLEN - strlen(buf),
+ "&wildcard=%s", req->wildcard);
+ if (req->mx != NULL)
+ snprintf(buf + strlen(buf), BUFLEN - strlen(buf),
+ "&mx=%s", req->mx);
+ if (req->mx != NULL && req->backmx != NULL)
+ snprintf(buf + strlen(buf), BUFLEN - strlen(buf),
+ "&backmx=%s", req->backmx);
+ if (req->offline != NULL)
+ snprintf(buf + strlen(buf), BUFLEN - strlen(buf),
+ "&offline=%s", req->offline);
+ snprintf(buf + strlen(buf), BUFLEN - strlen(buf),
+ " HTTP/1.0\r\n"
+ "Host: %s\r\n"
+ "Authorization: Basic %s\r\n"
+ "User-Agent: %s/%s\r\n"
+ "Connection: close\r\n\r\n",
+ DYNDNSHOST, req->auth, USERAGENT, VERSION);
+
+ return 0;
+}
+
+#define RET_OK 0
+#define RET_ERR 1
+
+static struct dd_retcode retcode[] = {
+ { "badsys", "bad system parameter", RET_ERR },
+ { "badagent", "useragent has been blocked", RET_ERR },
+ { "badauth", "bad authorization", RET_ERR },
+ { "!donator", "option available only to credited user", RET_ERR },
+ { "good", "update was successful", RET_OK },
+ { "nochg", "no update required", RET_OK },
+ { "notfqdn", "fully-qualified domain name was not provided", RET_ERR },
+ { "nohost", "hostname does not exist in database", RET_ERR },
+ { "!yours", "hostname does not belong to username", RET_ERR },
+ { "abuse", "hostname is blocked for abuse", RET_ERR },
+ { "numhost", "too many or too few hosts found", RET_ERR },
+ { "dnserr", "DNS error encountered", RET_ERR },
+ { "911", "internal server failure", RET_ERR },
+ { NULL, NULL, 0 }
+};
+
+static int
+parse_answer(char *buf)
+{
+ char *p;
+ int i;
+
+ if (strstr(buf, "HTTP/1.") == NULL)
+ errx(1, "strange server response");
+
+ (void) strtok(buf, "\n");
+ while ((p = strtok((char *) NULL, "\n")) != NULL) {
+ for (i = 0; retcode[i].code != NULL; i++) {
+ if (strstr(p, retcode[i].code)) {
+ if (verbose)
+ warnx("%s", retcode[i].message);
+ return retcode[i].ret;
+ }
+ }
+ }
+
+ return RET_ERR;
+}
+
+int
+do_request(int reqc, struct dd_request **reqv)
+{
+ int i;
+ int sockfd;
+ char buf[BUFLEN];
+
+ for (i = 0; i < reqc; i++) {
+ sockfd = connecttohost(DYNDNSHOST, DYNDNSPORT);
+ build_request(reqv[i], buf);
+ if (debug)
+ printf("request:\n%s\n", buf);
+ if (transfer(sockfd, buf, BUFLEN) == -1)
+ err(1, "transfer error");
+ close(sockfd);
+ if (debug)
+ printf("response:\n%s\n", buf);
+
+ if (parse_answer(buf) == RET_ERR)
+ return -1;
+ }
+
+ return 0;
+}