Annotation of src/usr.bin/cvs/cmd.c, Revision 1.34
1.34 ! joris 1: /* $OpenBSD: cmd.c,v 1.33 2005/07/26 16:03:20 xsa Exp $ */
1.1 joris 2: /*
3: * Copyright (c) 2005 Joris Vink <joris@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: #include <sys/queue.h>
28: #include <sys/time.h>
1.34 ! joris 29: #include <sys/stat.h>
1.1 joris 30:
1.22 xsa 31: #include <errno.h>
32: #include <stdio.h>
1.1 joris 33: #include <stdlib.h>
1.22 xsa 34: #include <string.h>
1.1 joris 35: #include <unistd.h>
36:
37: #include "cvs.h"
38: #include "log.h"
39: #include "proto.h"
40:
1.19 jfb 41:
42: /*
43: * Command dispatch table
44: * ----------------------
45: *
46: * The synopsis field should only contain the list of arguments that the
47: * command supports, without the actual command's name.
48: *
49: * Command handlers are expected to return 0 if no error occurred, or one of
50: * the CVS_EX_* error codes in case of an error. In case the error
51: * returned is 1, the command's usage string is printed to standard
52: * error before returning.
53: */
54: struct cvs_cmd *cvs_cdt[] = {
55: &cvs_cmd_add,
56: &cvs_cmd_admin,
57: &cvs_cmd_annotate,
58: &cvs_cmd_checkout,
59: &cvs_cmd_commit,
60: &cvs_cmd_diff,
61: &cvs_cmd_edit,
62: &cvs_cmd_editors,
63: &cvs_cmd_export,
64: &cvs_cmd_history,
65: &cvs_cmd_import,
66: &cvs_cmd_init,
67: #if defined(HAVE_KERBEROS)
68: &cvs_cmd_kserver,
69: #endif
70: &cvs_cmd_log,
71: #if 0
72: &cvs_cmd_login,
73: &cvs_cmd_logout,
74: #endif
75: &cvs_cmd_rdiff,
76: &cvs_cmd_release,
77: &cvs_cmd_remove,
78: &cvs_cmd_rlog,
79: &cvs_cmd_rtag,
80: &cvs_cmd_server,
81: &cvs_cmd_status,
82: &cvs_cmd_tag,
83: &cvs_cmd_unedit,
84: &cvs_cmd_update,
85: &cvs_cmd_version,
86: &cvs_cmd_watch,
87: &cvs_cmd_watchers,
88: NULL
89: };
90:
1.34 ! joris 91: #define MISSING_CVS_DIR 0x01
! 92: #define MISSING_CVS_ENTRIES 0x02
! 93: #define MISSING_CVS_REPO 0x04
1.19 jfb 94:
95: /*
96: * cvs_findcmd()
97: *
98: * Find the entry in the command dispatch table whose name or one of its
99: * aliases matches <cmd>.
100: * Returns a pointer to the command entry on success, NULL on failure.
101: */
1.32 xsa 102: struct cvs_cmd *
1.19 jfb 103: cvs_findcmd(const char *cmd)
104: {
105: int i, j;
106: struct cvs_cmd *cmdp;
107:
108: cmdp = NULL;
109:
110: for (i = 0; (cvs_cdt[i] != NULL) && (cmdp == NULL); i++) {
111: if (strcmp(cmd, cvs_cdt[i]->cmd_name) == 0)
112: cmdp = cvs_cdt[i];
113: else {
114: for (j = 0; j < CVS_CMD_MAXALIAS; j++) {
115: if (strcmp(cmd,
116: cvs_cdt[i]->cmd_alias[j]) == 0) {
117: cmdp = cvs_cdt[i];
118: break;
119: }
120: }
121: }
122: }
123:
124: return (cmdp);
125: }
126:
1.32 xsa 127: struct cvs_cmd *
1.19 jfb 128: cvs_findcmdbyreq(int reqid)
129: {
130: int i;
131: struct cvs_cmd *cmdp;
132:
133: cmdp = NULL;
134: for (i = 0; cvs_cdt[i] != NULL; i++)
135: if (cvs_cdt[i]->cmd_req == reqid) {
136: cmdp = cvs_cdt[i];
137: break;
138: }
139:
140: return (cmdp);
141: }
142:
143:
1.1 joris 144: /*
145: * start the execution of a command.
146: */
147: int
148: cvs_startcmd(struct cvs_cmd *cmd, int argc, char **argv)
149: {
1.34 ! joris 150: int i, ret, error;
1.1 joris 151: struct cvsroot *root;
1.19 jfb 152: int (*ex_hdlr)(CVSFILE *, void *);
1.31 joris 153: CVSFILE *cf;
1.34 ! joris 154: struct stat st;
1.5 joris 155:
156: /* if the command requested is the server one, just call the
157: * cvs_server() function to handle it, and return after it.
158: */
1.19 jfb 159: if (cmd->cmd_op == CVS_OP_SERVER)
160: return cvs_server(argc, argv);
1.1 joris 161:
1.25 xsa 162: if ((root = cvsroot_get(".")) == NULL)
163: return (CVS_EX_BADROOT);
164:
1.23 joris 165: i = 1;
1.19 jfb 166: if (cmd->cmd_init != NULL) {
167: if ((ret = (*cmd->cmd_init)(cmd, argc, argv, &i)) != 0)
1.3 joris 168: return (ret);
1.23 joris 169: }
1.3 joris 170:
1.23 joris 171: argc -= i;
172: argv += i;
1.34 ! joris 173:
! 174: /*
! 175: * Check if we have the administrative files present, if we are
! 176: * missing one, we will error out because we cannot continue.
! 177: *
! 178: * We are not checking for CVS/Root since we fetched the root
! 179: * above via cvsroot_get().
! 180: *
! 181: * checkout, export, import and release do not depend on these files.
! 182: */
! 183: error = 0;
! 184: if ((cmd->cmd_op != CVS_OP_CHECKOUT) && (cmd->cmd_op != CVS_OP_EXPORT) &&
! 185: (cmd->cmd_op != CVS_OP_IMPORT) && (cmd->cmd_op != CVS_OP_RELEASE)) {
! 186: /* check for the CVS directory */
! 187: ret = stat(CVS_PATH_CVSDIR, &st);
! 188: if (((ret == -1) && (errno == ENOENT)) || ((ret != -1) &&
! 189: !(S_ISDIR(st.st_mode))))
! 190: error |= MISSING_CVS_DIR;
! 191:
! 192: /* check if the CVS/Entries file exists */
! 193: ret = stat(CVS_PATH_ENTRIES, &st);
! 194: if (((ret == -1) && (errno == ENOENT)) || ((ret != -1) &&
! 195: !(S_ISREG(st.st_mode))))
! 196: error |= MISSING_CVS_ENTRIES;
! 197:
! 198: /* check if the CVS/Repository file exists */
! 199: ret = stat(CVS_PATH_REPOSITORY, &st);
! 200: if (((ret == -1) && (errno == ENOENT)) || ((ret != -1) &&
! 201: !(S_ISREG(st.st_mode))))
! 202: error |= MISSING_CVS_REPO;
! 203: }
! 204:
! 205: if (error > 0) {
! 206: if (error & MISSING_CVS_DIR) {
! 207: cvs_log(LP_ABORT, "missing '%s' directory",
! 208: CVS_PATH_CVSDIR);
! 209: return (CVS_EX_FILE);
! 210: }
! 211:
! 212: if (error & MISSING_CVS_ENTRIES)
! 213: cvs_log(LP_ABORT, "missing '%s' file", CVS_PATH_ENTRIES);
! 214: if (error & MISSING_CVS_REPO)
! 215: cvs_log(LP_ABORT, "missing '%s' file", CVS_PATH_REPOSITORY);
! 216: return (CVS_EX_FILE);
! 217: }
1.1 joris 218:
1.19 jfb 219: if (!(cmd->cmd_flags & CVS_CMD_ALLOWSPEC) && (argc > 0))
220: return (CVS_EX_USAGE);
1.18 xsa 221:
1.33 xsa 222: cvs_log(LP_TRACE, "cvs_startcmd() CVSROOT=%s", root->cr_str);
223:
1.19 jfb 224: if ((root->cr_method != CVS_METHOD_LOCAL) && (cvs_connect(root) < 0))
225: return (CVS_EX_PROTO);
1.1 joris 226:
1.19 jfb 227: if (cmd->cmd_pre_exec != NULL) {
228: if ((ret = cmd->cmd_pre_exec(root)) != 0)
229: return (ret);
1.1 joris 230: }
1.6 joris 231:
1.19 jfb 232: if (root->cr_method == CVS_METHOD_LOCAL)
233: ex_hdlr = cmd->cmd_exec_local;
234: else
235: ex_hdlr = cmd->cmd_exec_remote;
236:
237: if (argc > 0) {
1.31 joris 238: ret = cvs_file_getspec(argv, argc, cmd->file_flags,
239: ex_hdlr, NULL, NULL);
1.17 joris 240: } else {
1.31 joris 241: ret = cvs_file_get(".", cmd->file_flags,
242: ex_hdlr, NULL, NULL);
1.17 joris 243: }
244:
1.31 joris 245: if (ret != CVS_EX_OK)
246: return (cvs_error);
1.26 joris 247:
1.19 jfb 248: if (cmd->cmd_post_exec != NULL) {
249: if ((ret = cmd->cmd_post_exec(root)) != 0)
250: return (ret);
251: }
252:
1.1 joris 253: if (root->cr_method != CVS_METHOD_LOCAL) {
1.31 joris 254: /*
255: * If we have to send the directory the command
256: * has been issued in, obtain it.
257: */
1.19 jfb 258: if (cmd->cmd_flags & CVS_CMD_SENDDIR) {
1.31 joris 259: cf = cvs_file_loadinfo(".", CF_NOFILES, NULL, NULL, 1);
260: if (cf == NULL)
261: return (CVS_EX_DATA);
262: if (cvs_senddir(root, cf) < 0) {
263: cvs_file_free(cf);
1.11 joris 264: return (CVS_EX_PROTO);
1.31 joris 265: }
266: cvs_file_free(cf);
1.1 joris 267: }
268:
1.19 jfb 269: if (cmd->cmd_flags & CVS_CMD_SENDARGS2) {
1.1 joris 270: for (i = 0; i < argc; i++) {
271: if (cvs_sendarg(root, argv[i], 0) < 0)
1.11 joris 272: return (CVS_EX_PROTO);
1.1 joris 273: }
274: }
275:
1.31 joris 276: if (cmd->cmd_req != CVS_REQ_NONE &&
277: cvs_sendreq(root, cmd->cmd_req,
1.1 joris 278: (cmd->cmd_op == CVS_OP_INIT) ? root->cr_dir : NULL) < 0)
1.11 joris 279: return (CVS_EX_PROTO);
1.1 joris 280: }
1.19 jfb 281:
282: if (cmd->cmd_cleanup != NULL)
283: (*cmd->cmd_cleanup)();
1.24 joris 284:
1.31 joris 285: #if 0
1.29 joris 286: if (cvs_cmdop != CVS_OP_SERVER && cmd->cmd_flags & CVS_CMD_PRUNEDIRS)
1.26 joris 287: cvs_file_prune(fpath);
1.31 joris 288: #endif
1.28 joris 289:
1.24 joris 290: if (root->cr_method != CVS_METHOD_LOCAL)
291: cvs_disconnect(root);
1.1 joris 292:
293: return (0);
294: }
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