| 1 | #include <sys/types.h>
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| 2 | #include <sys/time.h>
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| 3 | #include <sys/stat.h>
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| 4 | #include <stdlib.h>
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| 5 | #include <string.h>
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| 6 | #include <errno.h>
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| 7 | #include <stdio.h>
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| 8 | #include <unistd.h>
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| 9 | #include <fcntl.h>
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| 10 | #include <getopt.h>
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| 11 | #include <ws2tcpip.h>
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| 12 |
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| 13 | #define FCGI_LISTENSOCK_FILENO 0
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| 14 |
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| 15 | #define UNIX_PATH_LEN 108
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| 16 |
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| 17 | typedef unsigned short int sa_family_t;
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| 18 |
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| 19 | struct sockaddr_un {
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| 20 | sa_family_t sun_family; /* address family AF_LOCAL/AF_UNIX */
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| 21 | char sun_path[UNIX_PATH_LEN]; /* 108 bytes of socket address */
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| 22 | };
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| 23 |
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| 24 | /* Evaluates the actual length of `sockaddr_un' structure. */
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| 25 | #define SUN_LEN(p) ((size_t)(((struct sockaddr_un *) NULL)->sun_path) \
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| 26 | + strlen ((p)->sun_path))
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| 27 |
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| 28 |
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| 29 | int fcgi_spawn_connection(char *appPath, char **appArgv, char *addr, unsigned short port, const char *unixsocket, int fork_count, int child_count, int pid_fd, int nofork) {
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| 30 | SOCKET fcgi_fd;
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| 31 | int socket_type, rc = 0;
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| 32 |
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| 33 | struct sockaddr_un fcgi_addr_un;
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| 34 | struct sockaddr_in fcgi_addr_in;
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| 35 | struct sockaddr *fcgi_addr;
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| 36 |
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| 37 | socklen_t servlen;
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| 38 |
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| 39 | WORD wVersion;
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| 40 | WSADATA wsaData;
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| 41 |
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| 42 | if (child_count < 2) {
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| 43 | child_count = 5;
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| 44 | }
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| 45 |
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| 46 | if (child_count > 256) {
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| 47 | child_count = 256;
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| 48 | }
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| 49 |
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| 50 |
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| 51 | if (unixsocket) {
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| 52 | memset(&fcgi_addr, 0, sizeof(fcgi_addr));
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| 53 |
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| 54 | fcgi_addr_un.sun_family = AF_UNIX;
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| 55 | strcpy(fcgi_addr_un.sun_path, unixsocket);
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| 56 |
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| 57 | #ifdef SUN_LEN
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| 58 | servlen = SUN_LEN(&fcgi_addr_un);
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| 59 | #else
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| 60 | /* stevens says: */
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| 61 | servlen = strlen(fcgi_addr_un.sun_path) + sizeof(fcgi_addr_un.sun_family);
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| 62 | #endif
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| 63 | socket_type = AF_UNIX;
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| 64 | fcgi_addr = (struct sockaddr *) &fcgi_addr_un;
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| 65 | } else {
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| 66 | fcgi_addr_in.sin_family = AF_INET;
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| 67 | if (addr != NULL) {
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| 68 | fcgi_addr_in.sin_addr.s_addr = inet_addr(addr);
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| 69 | } else {
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| 70 | fcgi_addr_in.sin_addr.s_addr = htonl(INADDR_ANY);
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| 71 | }
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| 72 | fcgi_addr_in.sin_port = htons(port);
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| 73 | servlen = sizeof(fcgi_addr_in);
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| 74 |
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| 75 | socket_type = AF_INET;
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| 76 | fcgi_addr = (struct sockaddr *) &fcgi_addr_in;
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| 77 | }
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| 78 |
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| 79 | /*
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| 80 | * Initialize windows sockets library.
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| 81 | */
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| 82 | wVersion = MAKEWORD(2,0);
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| 83 | if (WSAStartup( wVersion, &wsaData )) {
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| 84 | fprintf(stderr, "%s.%d: error %d starting Windows sockets\n",
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| 85 | __FILE__, __LINE__, WSAGetLastError());
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| 86 | }
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| 87 |
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| 88 | if (-1 == (fcgi_fd = socket(socket_type, SOCK_STREAM, 0))) {
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| 89 | fprintf(stderr, "%s.%d\n",
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| 90 | __FILE__, __LINE__);
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| 91 | return -1;
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| 92 | }
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| 93 |
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| 94 | if (-1 == connect(fcgi_fd, fcgi_addr, servlen)) {
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| 95 | /* server is not up, spawn in */
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| 96 | int val;
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| 97 |
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| 98 | if (unixsocket) unlink(unixsocket);
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| 99 |
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| 100 | close(fcgi_fd);
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| 101 |
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| 102 | /* reopen socket */
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| 103 | if (-1 == (fcgi_fd = socket(socket_type, SOCK_STREAM, 0))) {
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| 104 | fprintf(stderr, "%s.%d\n",
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| 105 | __FILE__, __LINE__);
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| 106 | return -1;
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| 107 | }
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| 108 |
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| 109 | val = 1;
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| 110 | if (setsockopt(fcgi_fd, SOL_SOCKET, SO_REUSEADDR, (const char*)&val, sizeof(val)) < 0) {
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| 111 | fprintf(stderr, "%s.%d\n",
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| 112 | __FILE__, __LINE__);
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| 113 | return -1;
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| 114 | }
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| 115 |
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| 116 | /* create socket */
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| 117 | if (-1 == bind(fcgi_fd, fcgi_addr, servlen)) {
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| 118 | fprintf(stderr, "%s.%d: bind failed: %s\n",
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| 119 | __FILE__, __LINE__,
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| 120 | strerror(errno));
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| 121 | return -1;
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| 122 | }
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| 123 |
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| 124 | if (-1 == listen(fcgi_fd, 1024)) {
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| 125 | fprintf(stderr, "%s.%d: fd = -1\n",
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| 126 | __FILE__, __LINE__);
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| 127 | return -1;
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| 128 | }
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| 129 |
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| 130 |
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| 131 | while (fork_count-- > 0) {
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| 132 |
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| 133 | PROCESS_INFORMATION pi;
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| 134 | STARTUPINFO si;
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| 135 |
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| 136 | ZeroMemory(&si,sizeof(STARTUPINFO));
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| 137 | si.cb = sizeof(STARTUPINFO);
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| 138 | si.dwFlags = STARTF_USESTDHANDLES;
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| 139 | si.hStdOutput = INVALID_HANDLE_VALUE;
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| 140 | si.hStdInput = (HANDLE)fcgi_fd;
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| 141 | si.hStdError = INVALID_HANDLE_VALUE;
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| 142 | if (!CreateProcess(NULL,appPath,NULL,NULL,TRUE, CREATE_NO_WINDOW,NULL,NULL,&si,&pi)) {
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| 143 | fprintf(stderr, "%s.%d: CreateProcess failed\n",
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| 144 | __FILE__, __LINE__);
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| 145 | return -1;
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| 146 | } else {
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| 147 | fprintf(stdout, "%s.%d: child spawned successfully: PID: %lu\n",
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| 148 | __FILE__, __LINE__,
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| 149 | pi.dwProcessId);
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| 150 | CloseHandle(pi.hThread);
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| 151 | }
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| 152 |
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| 153 | }
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| 154 |
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| 155 | } else {
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| 156 | fprintf(stderr, "%s.%d: socket is already used, can't spawn\n",
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| 157 | __FILE__, __LINE__);
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| 158 | return -1;
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| 159 | }
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| 160 |
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| 161 |
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| 162 | closesocket(fcgi_fd);
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| 163 |
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| 164 | return rc;
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| 165 | }
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| 166 |
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| 167 |
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| 168 | void show_version () {
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| 169 | char *b = "spawn-fcgi-win32 - spawns fastcgi processes\n";
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| 170 | write(1, b, strlen(b));
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| 171 | }
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| 172 |
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| 173 | void show_help () {
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| 174 | char *b =
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| 175 | "Usage: spawn-fcgi [options] -- <fcgiapp> [fcgi app arguments]\n"
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| 176 | "\n"
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| 177 | "spawn-fcgi-win32 - spawns fastcgi processes\n"
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| 178 | "\n"
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| 179 | "Options:\n"
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| 180 | " -f <fcgiapp> filename of the fcgi-application\n"
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| 181 | " -a <addr> bind to ip address\n"
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| 182 | " -p <port> bind to tcp-port\n"
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| 183 | " -s <path> bind to unix-domain socket\n"
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| 184 | " -C <childs> (PHP only) numbers of childs to spawn (default 5)\n"
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| 185 | " -F <childs> numbers of childs to fork (default 1)\n"
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| 186 | " -P <path> name of PID-file for spawed process\n"
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| 187 | " -n no fork (for daemontools)\n"
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| 188 | " -v show version\n"
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| 189 | " -h show this help\n"
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| 190 | "(root only)\n"
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| 191 | " -c <dir> chroot to directory\n"
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| 192 | " -u <user> change to user-id\n"
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| 193 | " -g <group> change to group-id\n"
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| 194 | ;
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| 195 | write(1, b, strlen(b));
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| 196 | }
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| 197 |
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| 198 |
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| 199 | int main(int argc, char **argv) {
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| 200 | char *fcgi_app = NULL, *unixsocket = NULL, *pid_file = NULL,
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| 201 | *addr = NULL;
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| 202 | char **fcgi_app_argv = { NULL };
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| 203 | unsigned short port = 0;
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| 204 | int child_count = 5;
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| 205 | int fork_count = 1;
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| 206 | int pid_fd = -1;
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| 207 | int nofork = 0;
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| 208 | int o;
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| 209 | struct sockaddr_un un;
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| 210 |
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| 211 | while (-1 != (o = getopt(argc, argv, "c:f:g:hna:p:u:vC:F:s:P:"))) {
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| 212 | switch(o) {
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| 213 | case 'f': fcgi_app = optarg; break;
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| 214 | case 'a': addr = optarg;/* ip addr */ break;
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| 215 | case 'p': port = strtol(optarg, NULL, 10);/* port */ break;
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| 216 | case 'C': child_count = strtol(optarg, NULL, 10);/* */ break;
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| 217 | case 'F': fork_count = strtol(optarg, NULL, 10);/* */ break;
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| 218 | case 's': unixsocket = optarg; /* unix-domain socket */ break;
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| 219 | case 'n': nofork = 1; break;
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| 220 | case 'P': pid_file = optarg; /* PID file */ break;
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| 221 | case 'v': show_version(); return 0;
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| 222 | case 'h': show_help(); return 0;
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| 223 | default:
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| 224 | show_help();
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| 225 | return -1;
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| 226 | }
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| 227 | }
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| 228 |
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| 229 | if (optind < argc) {
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| 230 | fcgi_app_argv = &argv[optind];
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| 231 | }
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| 232 |
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| 233 | if ((fcgi_app == NULL && fcgi_app_argv == NULL) || (port == 0 && unixsocket == NULL)) {
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| 234 | show_help();
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| 235 | return -1;
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| 236 | }
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| 237 |
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| 238 | if (unixsocket && port) {
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| 239 | fprintf(stderr, "%s.%d: %s\n",
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| 240 | __FILE__, __LINE__,
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| 241 | "either a unix domain socket or a tcp-port, but not both\n");
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| 242 |
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| 243 | return -1;
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| 244 | }
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| 245 |
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| 246 | if (unixsocket && strlen(unixsocket) > sizeof(un.sun_path) - 1) {
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| 247 | fprintf(stderr, "%s.%d: %s\n",
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| 248 | __FILE__, __LINE__,
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| 249 | "path of the unix socket is too long\n");
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| 250 |
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| 251 | return -1;
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| 252 | }
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| 253 |
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| 254 | if (pid_file &&
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| 255 | (-1 == (pid_fd = open(pid_file, O_WRONLY | O_CREAT | O_EXCL | O_TRUNC)))) {
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| 256 | struct stat st;
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| 257 | if (errno != EEXIST) {
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| 258 | fprintf(stderr, "%s.%d: opening pid-file '%s' failed: %s\n",
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| 259 | __FILE__, __LINE__,
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| 260 | pid_file, strerror(errno));
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| 261 |
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| 262 | return -1;
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| 263 | }
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| 264 |
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| 265 | /* ok, file exists */
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| 266 |
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| 267 | if (0 != stat(pid_file, &st)) {
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| 268 | fprintf(stderr, "%s.%d: stating pid-file '%s' failed: %s\n",
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| 269 | __FILE__, __LINE__,
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| 270 | pid_file, strerror(errno));
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| 271 |
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| 272 | return -1;
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| 273 | }
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| 274 |
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| 275 | /* is it a regular file ? */
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| 276 |
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| 277 | if (!S_ISREG(st.st_mode)) {
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| 278 | fprintf(stderr, "%s.%d: pid-file exists and isn't regular file: '%s'\n",
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| 279 | __FILE__, __LINE__,
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| 280 | pid_file);
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| 281 |
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| 282 | return -1;
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| 283 | }
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| 284 |
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| 285 | if (-1 == (pid_fd = open(pid_file, O_WRONLY | O_CREAT | O_TRUNC))) {
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| 286 | fprintf(stderr, "%s.%d: opening pid-file '%s' failed: %s\n",
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| 287 | __FILE__, __LINE__,
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| 288 | pid_file, strerror(errno));
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| 289 |
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| 290 | return -1;
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| 291 | }
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| 292 | }
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| 293 |
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| 294 | return fcgi_spawn_connection(fcgi_app, fcgi_app_argv, addr, port, unixsocket, fork_count, child_count, pid_fd, nofork);
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| 295 | }
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