Commit | Line | Data |
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8512671a LM |
1 | /* depend: */ |
2 | /* cflags: */ | |
06ec8057 | 3 | /* linker: color.o debug.o server.o signal.o */ |
8512671a | 4 | |
184be781 | 5 | #include <assert.h> |
8512671a LM |
6 | #include <stdio.h> |
7 | #include <stdlib.h> | |
89f0e084 | 8 | #include <unistd.h> |
8512671a LM |
9 | |
10 | #include "debug.h" | |
00afbb65 | 11 | #include "server.h" |
06ec8057 | 12 | #include "signal.h" |
8512671a | 13 | |
184be781 LM |
14 | /* types */ |
15 | ||
8512671a LM |
16 | /* constants */ |
17 | ||
18 | #define BUFFER_SIZE 4096 | |
19 | ||
20 | /* macros */ | |
21 | ||
22 | /* gobal variables */ | |
23 | ||
24 | char *progname = NULL; | |
21ac031b | 25 | int port = 8080; |
06ec8057 | 26 | socket_t sock = INVALID_SOCKET; |
89f0e084 | 27 | socket_t conn = INVALID_SOCKET; |
8512671a LM |
28 | |
29 | /* help function */ | |
30 | ||
31 | int usage (int ret) | |
32 | { | |
33 | FILE *fid = ret ? stderr : stdout; | |
34 | fprintf (fid, "usage: %s\n", progname); | |
35 | fprintf (fid, " -h : help message\n"); | |
21ac031b | 36 | fprintf (fid, " -p : port number (%d)\n", port); |
8512671a LM |
37 | fprintf (fid, " -v : verbose level (%d)\n", verbose); |
38 | ||
39 | return ret; | |
40 | } | |
41 | ||
06ec8057 LM |
42 | void stop_server (__attribute__((unused)) int sig) |
43 | { | |
89f0e084 LM |
44 | if (conn != INVALID_SOCKET) { |
45 | close_socket (conn); | |
46 | } | |
06ec8057 | 47 | if (sock != INVALID_SOCKET) { |
89f0e084 | 48 | close_socket (sock); |
06ec8057 | 49 | } |
89f0e084 LM |
50 | terminate_network_context (); |
51 | exit (0); | |
06ec8057 LM |
52 | } |
53 | ||
8512671a LM |
54 | /* main function */ |
55 | ||
56 | int main (int argc, char *argv[]) | |
57 | { | |
58 | int i = 0; | |
8512671a LM |
59 | |
60 | /* program name */ | |
61 | ||
62 | progname = argv[0]; | |
63 | while (progname[i] != '\0') { | |
64 | if ((progname[i] == '/') || (progname[i] == '\\')) { | |
65 | progname += i + 1; | |
66 | i = 0; | |
67 | } else { | |
68 | i++; | |
69 | } | |
70 | } | |
71 | ||
72 | /* argument processing */ | |
73 | ||
74 | while (argc-- > 1) { | |
75 | char *arg = *(++argv); | |
76 | if (arg[0] != '-') { | |
77 | VERBOSE (ERROR, fprintf (stderr, "%s: invalid option -- '%s'\n", progname, arg); usage (1)); | |
78 | return 1; | |
79 | } | |
80 | char c = arg[1]; | |
81 | switch (c) { | |
21ac031b | 82 | case 'p': |
8512671a LM |
83 | arg = (arg[2]) ? arg + 2 : (--argc > 0) ? *(++argv) : NULL; |
84 | if (arg == NULL) { | |
21ac031b LM |
85 | VERBOSE (ERROR, fprintf (stderr, "%s: missing port number\n", progname); usage (1)); |
86 | return 1; | |
87 | } | |
88 | port = atoi (arg); | |
89 | if (port <= 0) { | |
90 | VERBOSE (ERROR, fprintf (stderr, "%s: incorrect port number (%s)\n", progname, arg); usage (1)); | |
8512671a LM |
91 | return 1; |
92 | } | |
8512671a | 93 | break; |
8512671a LM |
94 | case 'v': |
95 | arg = (arg[2]) ? arg + 2 : (--argc > 0) ? *(++argv) : NULL; | |
96 | if (arg == NULL) { | |
97 | VERBOSE (ERROR, fprintf (stderr, "%s: missing verbose level\n", progname); usage (1)); | |
98 | return 1; | |
99 | } | |
100 | verbose = atoi (arg); | |
101 | break; | |
102 | case 'h': | |
103 | default: | |
104 | return usage (c != 'h'); | |
105 | } | |
106 | } | |
107 | ||
184be781 | 108 | VERBOSE (DEBUG, fprintf (stdout, "Initializing socket\n")); |
89f0e084 | 109 | init_network_context (); |
06ec8057 LM |
110 | sock = open_listening_socket (port); |
111 | if (sock == INVALID_SOCKET) { | |
184be781 LM |
112 | VERBOSE (ERROR, fprintf (stderr, "Can't open listening socket\n")); |
113 | return 1; | |
114 | } | |
184be781 | 115 | VERBOSE (INFO, fprintf (stdout, "Listening socket on port %d\n", port)); |
04a2223d LM |
116 | |
117 | /* main loop */ | |
118 | while (1) { | |
89f0e084 LM |
119 | conn = accept_incoming_connection (sock); |
120 | if (conn == INVALID_SOCKET) { | |
121 | usleep (1e5); | |
04a2223d LM |
122 | continue; |
123 | } | |
124 | ||
125 | VERBOSE (DEBUG, fprintf (stdout, "Server connected, waiting for data\n")); | |
126 | ||
89f0e084 | 127 | unsigned char *data = {0}; |
04a2223d | 128 | |
89f0e084 LM |
129 | int len = receive_data (conn, &data); |
130 | if (len == 0) { | |
131 | VERBOSE (WARNING, fprintf (stdout, "Connection closed by peer (rx)\n")); | |
132 | } else if (len < 0) { | |
133 | VERBOSE (WARNING, fprintf (stdout, "Connection in error (rx)\n")); | |
134 | } else { | |
04a2223d LM |
135 | |
136 | // processing | |
7a6b7a44 | 137 | VERBOSE (DEBUG, fprintf (stdout, "Received:\n%s\n", data)); |
89f0e084 LM |
138 | |
139 | int rc = send_data (conn, data, len); | |
140 | if (rc == 0) { | |
141 | VERBOSE (WARNING, fprintf (stdout, "Connection closed by peer (tx)\n")); | |
142 | } else if (rc < 0) { | |
143 | VERBOSE (WARNING, fprintf (stdout, "Connection in error (tx)\n")); | |
04a2223d | 144 | } |
89f0e084 | 145 | } |
04a2223d | 146 | |
89f0e084 LM |
147 | if (data) { |
148 | free (data); | |
04a2223d | 149 | } |
89f0e084 LM |
150 | close_socket (conn); |
151 | conn = INVALID_SOCKET; | |
04a2223d | 152 | } |
89f0e084 | 153 | |
184be781 | 154 | VERBOSE (DEBUG, fprintf (stdout, "Closing socket\n")); |
89f0e084 LM |
155 | close_socket (sock); |
156 | terminate_network_context (); | |
184be781 | 157 | |
06ec8057 | 158 | return 2; |
8512671a LM |
159 | } |
160 | ||
161 | // test: webserver.exe -h | |
162 | // test: webserver.exe -h | awk '/usage:/ { rc=1 } END { exit (1-rc) }' | |
21ac031b | 163 | // test: webserver.exe -_ 2> /dev/null | wc -l | xargs test 0 = |
8512671a LM |
164 | // test: webserver.exe -_ 2>&1 | awk '/usage:/ { rc=1 } END { exit (1-rc) }' |
165 | // test: webserver.exe error 2>&1 | grep -q 'invalid option' | |
21ac031b LM |
166 | // test: webserver.exe -v 2>&1 | grep -q 'missing verbose level' |
167 | // test: webserver.exe -p 2>&1 | grep -q 'missing port number' | |
168 | // test: webserver.exe -p -1 2>&1 | grep -q 'incorrect port number' | |
06ec8057 LM |
169 | // test: ( webserver.exe & pid=$!; ( sleep 1; kill -TERM $pid ) ) | grep -q 'Listening socket on port 8080' |
170 | // test: ( webserver.exe -p 8008 & pid=$!; ( sleep 1; kill -TERM $pid ) ) | grep -q 'Listening socket on port 8008' | |
171 | // test: webserver.exe & pid=$!; sleep 1; kill -INT $pid; ps aux | grep -q [w]ebserver.exe && kill -TERM $pid || rc=1; test x$rc = x1 | |
8512671a LM |
172 | |
173 | /* vim: set ts=4 sw=4 et: */ |