зеркало из https://github.com/mozilla/pjs.git
244 строки
3.9 KiB
C
244 строки
3.9 KiB
C
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is SniffURI.
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*
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* The Initial Developer of the Original Code is
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* Erik van der Poel <erik@vanderpoel.org>.
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* Portions created by the Initial Developer are Copyright (C) 1998-2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* ***** END LICENSE BLOCK ***** */
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#include "all.h"
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typedef void (*Handler)(int fd);
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typedef struct FD
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{
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Handler handler;
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FILE *file;
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} FD;
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static unsigned short mainPort = 8008;
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static int maxFD = -1;
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static FD **table = NULL;
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static fd_set fdSet;
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static FD *
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addFD(int fd, Handler func)
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{
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FD *f;
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if (fd > maxFD)
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{
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if (table)
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{
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table = utilRealloc(table,
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(maxFD + 1) * sizeof(*table),
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(fd + 1) * sizeof(*table));
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}
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else
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{
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table = calloc(fd + 1, sizeof(*table));
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}
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if (!table)
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{
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return NULL;
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}
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maxFD = fd;
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}
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f = malloc(sizeof(FD));
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if (!f)
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{
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return NULL;
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}
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f->handler = func;
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f->file = NULL;
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table[fd] = f;
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FD_SET(fd, &fdSet);
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return f;
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}
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static void
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removeFD(int fd)
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{
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FD *f;
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f = table[fd];
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if (f)
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{
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FD_CLR(fd, &fdSet);
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if (f->file && (fileno(f->file) == fd))
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{
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fclose(f->file);
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}
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else
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{
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close(fd);
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}
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free(f);
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table[fd] = NULL;
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}
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}
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static void
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readClientRequest(int fd)
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{
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unsigned char buf[10240];
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int bytesRead;
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FILE *file;
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bytesRead = recv(fd, buf, sizeof(buf) - 1, 0);
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if (bytesRead < 0)
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{
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if (errno != ECONNRESET)
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{
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perror("recv");
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}
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removeFD(fd);
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return;
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}
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else if (!bytesRead)
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{
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removeFD(fd);
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return;
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}
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buf[bytesRead] = 0;
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file = fdopen(fd, "w");
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if (!file)
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{
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char *err = "fdopen failed\n";
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send(fd, err, strlen(err), 0);
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removeFD(fd);
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return;
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}
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table[fd]->file = file;
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if (strstr((char *) buf, "/exit"))
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{
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char *goodbye =
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"HTTP/1.0 200 OK\n"
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"Content-Type: text/html\n"
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"\n"
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"Bye!"
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;
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fprintf(file, goodbye);
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removeFD(fd);
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exit(0);
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}
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else if (strstr((char *) buf, "/no-content-type"))
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{
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char *begin =
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"HTTP/1.0 200 OK\n"
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"\n"
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;
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fprintf(file, begin);
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fprintf(file, "<html><head><title>No Content-Type</title>");
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fprintf(file, "</head><body><h1>No Content-Type</h1></body>");
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fprintf(file, "</html>");
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removeFD(fd);
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}
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else
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{
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char *hello =
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"HTTP/1.0 200 OK\n"
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"Content-Type: text/html\n"
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"\n"
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;
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fprintf(file, hello);
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fprintf(file, "<html><head><title>SniffURI httpd</title>");
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fprintf(file, "</head><body>");
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fprintf(file, "<a href=exit>Exit</a><br>");
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fprintf(file,
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"<a href=no-content-type>No Content-Type</a><br>");
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fprintf(file, "</body></html>");
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removeFD(fd);
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}
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}
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static void
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acceptNewClient(int fd)
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{
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FD *f;
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int newFD;
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newFD = netAccept(fd);
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if (newFD < 0)
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{
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fprintf(stderr, "netAccept failed\n");
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return;
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}
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f = addFD(newFD, readClientRequest);
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if (!f)
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{
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fprintf(stderr, "addFD failed\n");
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return;
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}
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}
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int
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main(int argc, char *argv[])
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{
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App *app;
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FD *f;
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int fd;
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fd_set localFDSet;
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int ret;
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app = appAlloc();
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fd = netListen(app, NULL, &mainPort);
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if (fd < 0)
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{
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fprintf(stderr, "netListen failed\n");
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return 1;
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}
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f = addFD(fd, acceptNewClient);
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if (!f)
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{
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fprintf(stderr, "addFD failed\n");
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return 1;
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}
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while (1)
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{
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localFDSet = fdSet;
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ret = select(maxFD + 1, &localFDSet, NULL, NULL, NULL);
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if (ret == -1)
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{
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perror("select");
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}
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for (fd = 0; fd <= maxFD; fd++)
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{
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if (FD_ISSET(fd, &localFDSet))
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{
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(*table[fd]->handler)(fd);
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}
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}
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}
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return 0;
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}
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