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1.1 jfb 1: /* $OpenBSD$ */
2: /*
3: * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
4: * All rights reserved.
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: *
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. The name of the author may not be used to endorse or promote products
13: * derived from this software without specific prior written permission.
14: *
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
16: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
17: * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
18: * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
24: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25: */
26:
27:
28: #include <sys/types.h>
29: #include <sys/stat.h>
30:
31: #include <fcntl.h>
32: #include <stdio.h>
33: #include <errno.h>
34: #include <stdlib.h>
35: #include <unistd.h>
36: #include <signal.h>
37: #include <string.h>
38: #include <sysexits.h>
39: #ifdef CVS_ZLIB
40: #include <zlib.h>
41: #endif
42:
43: #include "buf.h"
44: #include "cvs.h"
45: #include "log.h"
46: #include "file.h"
47: #include "proto.h"
48:
49:
50: extern int verbosity;
51: extern int cvs_compress;
52: extern char *cvs_rsh;
53: extern int cvs_trace;
54: extern int cvs_nolog;
55: extern int cvs_readonly;
56:
57:
58: static int cvs_req_root (int, char *);
59: static int cvs_req_directory (int, char *);
1.2 jfb 60: static int cvs_req_argument (int, char *);
1.3 ! jfb 61: static int cvs_req_globalopt (int, char *);
1.1 jfb 62: static int cvs_req_version (int, char *);
63:
64:
65: struct cvs_reqhdlr {
66: int (*hdlr)(int, char *);
67: } cvs_req_swtab[CVS_REQ_MAX + 1] = {
68: { NULL },
69: { cvs_req_root },
70: { NULL },
71: { NULL },
72: { cvs_req_directory },
73: { NULL },
74: { NULL },
75: { NULL },
76: { NULL },
77: { NULL },
78: { NULL }, /* 10 */
79: { NULL },
80: { NULL },
81: { NULL },
82: { NULL },
83: { NULL },
84: { NULL },
85: { NULL },
86: { NULL },
87: { NULL },
1.2 jfb 88: { cvs_req_argument }, /* 20 */
89: { cvs_req_argument },
1.3 ! jfb 90: { cvs_req_globalopt },
1.1 jfb 91: { NULL },
92: { NULL },
93: { NULL },
94: { NULL },
95: { NULL },
96: { NULL },
97: { NULL },
98: { NULL }, /* 30 */
99: { NULL },
100: { NULL },
101: { NULL },
102: { NULL },
103: { NULL },
104: { NULL },
105: { NULL },
106: { NULL },
107: { NULL },
108: { NULL }, /* 40 */
109: { NULL },
110: { NULL },
111: { NULL },
112: { NULL },
113: { NULL },
114: { NULL },
115: { NULL },
116: { NULL },
117: { NULL },
118: { NULL }, /* 50 */
119: { NULL },
120: { NULL },
121: { NULL },
122: { NULL },
123: { NULL },
124: { NULL },
125: { NULL },
126: { NULL },
127: { NULL },
128: { NULL }, /* 60 */
129: { NULL },
130: { NULL },
131: { NULL },
132: { NULL },
133: { NULL },
134: { NULL },
135: { NULL },
136: { NULL },
137: { cvs_req_version },
138: };
139:
140:
141:
142: /*
1.2 jfb 143: * Argument array built by `Argument' and `Argumentx' requests.
144: */
145:
146: static char *cvs_req_args[CVS_PROTO_MAXARG];
147: static int cvs_req_nargs = 0;
148:
149:
150:
151:
152:
153: /*
1.1 jfb 154: * cvs_req_handle()
155: *
156: * Generic request handler dispatcher. The handler expects the first line
157: * of the command as single argument.
158: * Returns the return value of the command on success, or -1 on failure.
159: */
160:
161: int
162: cvs_req_handle(char *line)
163: {
164: char *cp, *cmd;
165: struct cvs_req *req;
166:
167: cmd = line;
168:
169: cp = strchr(cmd, ' ');
170: if (cp != NULL)
171: *(cp++) = '\0';
172:
173: req = cvs_req_getbyname(cmd);
174: if (req == NULL)
175: return (-1);
176: else if (cvs_req_swtab[req->req_id].hdlr == NULL) {
177: cvs_log(LP_ERRNO, "handler for `%s' not implemented", cmd);
178: return (-1);
179: }
180:
181: return (*cvs_req_swtab[req->req_id].hdlr)(req->req_id, cp);
182: }
183:
184:
185:
186: static int
187: cvs_req_root(int reqid, char *line)
188: {
189:
190:
191:
192: return (0);
193: }
194:
195: static int
196: cvs_req_directory(int reqid, char *line)
197: {
198:
199:
1.2 jfb 200:
201: return (0);
202: }
203:
204:
205: static int
206: cvs_req_argument(int reqid, char *line)
207: {
208: char *nap;
209:
210: if (cvs_req_nargs == CVS_PROTO_MAXARG) {
211: cvs_log(LP_ERR, "too many arguments");
212: return (-1);
213: }
214:
215: if (reqid == CVS_REQ_ARGUMENT) {
216: cvs_req_args[cvs_req_nargs] = strdup(line);
217: if (cvs_req_args[cvs_req_nargs] == NULL) {
218: cvs_log(LP_ERRNO, "failed to copy argument");
219: return (-1);
220: }
221: cvs_req_nargs++;
222: }
223: else if (reqid == CVS_REQ_ARGUMENTX) {
224: if (cvs_req_nargs == 0)
225: cvs_log(LP_WARN, "no argument to append to");
226: else {
227: asprintf(&nap, "%s%s", cvs_req_args[cvs_req_nargs - 1],
228: line);
229: if (nap == NULL) {
230: cvs_log(LP_ERRNO,
231: "failed to append to argument");
232: return (-1);
233: }
234: free(cvs_req_args[cvs_req_nargs - 1]);
235: cvs_req_args[cvs_req_nargs - 1] = nap;
236: }
1.3 ! jfb 237: }
! 238:
! 239: return (0);
! 240: }
! 241:
! 242:
! 243: static int
! 244: cvs_req_globalopt(int reqid, char *line)
! 245: {
! 246: if ((*line != '-') || (*(line + 2) != '\0')) {
! 247: cvs_log(LP_ERR,
! 248: "invalid `Global_option' request format");
! 249: return (-1);
! 250: }
! 251:
! 252: switch (*(line + 1)) {
! 253: case 'l':
! 254: cvs_nolog = 1;
! 255: break;
! 256: case 'n':
! 257: break;
! 258: case 'Q':
! 259: verbosity = 0;
! 260: break;
! 261: case 'q':
! 262: if (verbosity > 1)
! 263: verbosity = 1;
! 264: break;
! 265: case 'r':
! 266: cvs_readonly = 1;
! 267: break;
! 268: case 't':
! 269: cvs_trace = 1;
! 270: break;
! 271: default:
! 272: cvs_log(LP_ERR, "unknown global option `%s'", line);
! 273: return (-1);
1.2 jfb 274: }
1.1 jfb 275:
276: return (0);
277: }
278:
279:
280: static int
281: cvs_req_version(int reqid, char *line)
282: {
283: cvs_printf("%s\n", CVS_VERSION);
284: return (0);
285: }