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nmav |
1.1 |
/* |
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* Boa, an http server |
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* Copyright (C) 1999 Larry Doolittle <ldoolitt@boa.org> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 1, or (at your option) |
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* any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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*/ |
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nmav |
1.2 |
/* $Id: sublog.c,v 1.1.1.1 2002/09/21 13:53:54 nmav Exp $*/ |
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nmav |
1.1 |
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#include <errno.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <netdb.h> |
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#include <unistd.h> |
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#include <fcntl.h> |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <arpa/inet.h> |
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nmav |
1.2 |
#include "compat.h" |
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nmav |
1.1 |
|
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int open_pipe_fd(char *command); |
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int open_net_fd(char *spec); |
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int open_gen_fd(char *spec); |
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/* Like popen, but gives fd instead of FILE * */ |
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int open_pipe_fd(char *command) |
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{ |
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int pipe_fds[2]; |
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int pid; |
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/* "man pipe" says "filedes[0] is for reading, |
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* filedes[1] is for writing. */ |
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if (pipe(pipe_fds) == -1) |
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return -1; |
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pid = fork(); |
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if (pid == 0) { /* child */ |
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close(pipe_fds[1]); |
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if (pipe_fds[0] != 0) { |
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dup2(pipe_fds[0], 0); |
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close(pipe_fds[0]); |
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} |
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execl("/bin/sh", "sh", "-c", command, (char *) 0); |
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exit(127); |
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} |
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close(pipe_fds[0]); |
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if (pid < 0) { |
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close(pipe_fds[1]); |
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return -1; |
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} |
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return pipe_fds[1]; |
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} |
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int open_net_fd(char *spec) |
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{ |
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char *p; |
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int fd, port; |
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struct sockaddr_in sa; |
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struct hostent *he; |
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p = strchr(spec, ':'); |
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if (!p) |
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return -1; |
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*p++ = '\0'; |
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port = strtol(p, NULL, 10); |
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/* printf("Host %s, port %d\n",spec,port); */ |
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sa.sin_family = AF_INET; |
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sa.sin_port = htons(port); |
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he = gethostbyname(spec); |
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if (!he) { |
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nmav |
1.2 |
#ifdef HAVE_HERROR |
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nmav |
1.1 |
herror("open_net_fd"); |
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nmav |
1.2 |
#endif |
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nmav |
1.1 |
return -1; |
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} |
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memcpy(&sa.sin_addr, he->h_addr, he->h_length); |
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/* printf("using ip %s\n",inet_ntoa(sa.sin_addr)); */ |
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fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
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if (fd < 0) |
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return fd; |
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if (connect(fd, (struct sockaddr *) &sa, sizeof (sa)) < 0) |
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return -1; |
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return fd; |
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} |
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int open_gen_fd(char *spec) |
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{ |
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int fd; |
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if (*spec == '|') { |
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fd = open_pipe_fd(spec + 1); |
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} else if (*spec == ':') { |
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fd = open_net_fd(spec + 1); |
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} else { |
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fd = open(spec, |
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O_WRONLY | O_CREAT | O_APPEND, |
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S_IRUSR | S_IWUSR | S_IROTH | S_IRGRP); |
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} |
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return fd; |
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} |
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#ifdef STANDALONE_TEST |
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int main(int argc, char *argv[]) |
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{ |
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char buff[1024]; |
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int fd, nr, nw; |
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if (argc < 2) { |
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fprintf(stderr, |
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"usage: %s output-filename\n" |
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" %s |output-command\n" |
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" %s :host:port\n", argv[0], argv[0], argv[0]); |
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return 1; |
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} |
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fd = open_gen_fd(argv[1]); |
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if (fd < 0) { |
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perror("open_gen_fd"); |
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exit(1); |
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} |
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while ((nr = read(0, buff, sizeof (buff))) != 0) { |
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if (nr < 0) { |
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if (errno == EINTR) |
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continue; |
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perror("read"); |
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exit(1); |
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} |
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nw = write(fd, buff, nr); |
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if (nw < 0) { |
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perror("write"); |
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exit(1); |
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} |
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} |
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return 0; |
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} |
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#endif |