1: /*
2: * Support for the batch-file options.
3: *
4: * Copyright (C) 1999 Weiss
5: * Copyright (C) 2004 Chris Shoemaker
6: * Copyright (C) 2004-2009 Wayne Davison
7: *
8: * This program is free software; you can redistribute it and/or modify
9: * it under the terms of the GNU General Public License as published by
10: * the Free Software Foundation; either version 3 of the License, or
11: * (at your option) any later version.
12: *
13: * This program is distributed in the hope that it will be useful,
14: * but WITHOUT ANY WARRANTY; without even the implied warranty of
15: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: * GNU General Public License for more details.
17: *
18: * You should have received a copy of the GNU General Public License along
19: * with this program; if not, visit the http://fsf.org website.
20: */
21:
22: #include "rsync.h"
23: #include "zlib/zlib.h"
24: #include <time.h>
25:
26: extern int eol_nulls;
27: extern int recurse;
28: extern int xfer_dirs;
29: extern int preserve_links;
30: extern int preserve_hard_links;
31: extern int preserve_devices;
32: extern int preserve_uid;
33: extern int preserve_gid;
34: extern int preserve_acls;
35: extern int preserve_xattrs;
36: extern int always_checksum;
37: extern int do_compression;
38: extern int inplace;
39: extern int append_mode;
40: extern int protocol_version;
41: extern char *batch_name;
42: #ifdef ICONV_OPTION
43: extern char *iconv_opt;
44: #endif
45:
46: extern struct filter_list_struct filter_list;
47:
48: int batch_stream_flags;
49:
50: static int tweaked_append;
51: static int tweaked_append_verify;
52: static int tweaked_iconv;
53:
54: static int *flag_ptr[] = {
55: &recurse, /* 0 */
56: &preserve_uid, /* 1 */
57: &preserve_gid, /* 2 */
58: &preserve_links, /* 3 */
59: &preserve_devices, /* 4 */
60: &preserve_hard_links, /* 5 */
61: &always_checksum, /* 6 */
62: &xfer_dirs, /* 7 (protocol 29) */
63: &do_compression, /* 8 (protocol 29) */
64: &tweaked_iconv, /* 9 (protocol 30) */
65: &preserve_acls, /* 10 (protocol 30) */
66: &preserve_xattrs, /* 11 (protocol 30) */
67: &inplace, /* 12 (protocol 30) */
68: &tweaked_append, /* 13 (protocol 30) */
69: &tweaked_append_verify, /* 14 (protocol 30) */
70: NULL
71: };
72:
73: static char *flag_name[] = {
74: "--recurse (-r)",
75: "--owner (-o)",
76: "--group (-g)",
77: "--links (-l)",
78: "--devices (-D)",
79: "--hard-links (-H)",
80: "--checksum (-c)",
81: "--dirs (-d)",
82: "--compress (-z)",
83: "--iconv",
84: "--acls (-A)",
85: "--xattrs (-X)",
86: "--inplace",
87: "--append",
88: "--append-verify",
89: NULL
90: };
91:
92: void write_stream_flags(int fd)
93: {
94: int i, flags;
95:
96: tweaked_append = append_mode == 1;
97: tweaked_append_verify = append_mode == 2;
98: #ifdef ICONV_OPTION
99: tweaked_iconv = iconv_opt != NULL;
100: #endif
101:
102: /* Start the batch file with a bitmap of data-stream-affecting
103: * flags. */
104: for (i = 0, flags = 0; flag_ptr[i]; i++) {
105: if (*flag_ptr[i])
106: flags |= 1 << i;
107: }
108: write_int(fd, flags);
109: }
110:
111: void read_stream_flags(int fd)
112: {
113: batch_stream_flags = read_int(fd);
114: }
115:
116: void check_batch_flags(void)
117: {
118: int i;
119:
120: if (protocol_version < 29)
121: flag_ptr[7] = NULL;
122: else if (protocol_version < 30)
123: flag_ptr[9] = NULL;
124: tweaked_append = append_mode == 1;
125: tweaked_append_verify = append_mode == 2;
126: #ifdef ICONV_OPTION
127: tweaked_iconv = iconv_opt != NULL;
128: #endif
129: for (i = 0; flag_ptr[i]; i++) {
130: int set = batch_stream_flags & (1 << i) ? 1 : 0;
131: if (*flag_ptr[i] != set) {
132: if (i == 9) {
133: rprintf(FERROR,
134: "%s specify the --iconv option to use this batch file.\n",
135: set ? "Please" : "Do not");
136: exit_cleanup(RERR_SYNTAX);
137: }
138: if (verbose) {
139: rprintf(FINFO,
140: "%sing the %s option to match the batchfile.\n",
141: set ? "Sett" : "Clear", flag_name[i]);
142: }
143: *flag_ptr[i] = set;
144: }
145: }
146: if (protocol_version < 29) {
147: if (recurse)
148: xfer_dirs |= 1;
149: else if (xfer_dirs < 2)
150: xfer_dirs = 0;
151: }
152:
153: if (tweaked_append)
154: append_mode = 1;
155: else if (tweaked_append_verify)
156: append_mode = 2;
157: }
158:
159: static int write_arg(int fd, char *arg)
160: {
161: char *x, *s;
162: int len, ret = 0;
163:
164: if (*arg == '-' && (x = strchr(arg, '=')) != NULL) {
165: if (write(fd, arg, x - arg + 1) != x - arg + 1)
166: ret = -1;
167: arg += x - arg + 1;
168: }
169:
170: if (strpbrk(arg, " \"'&;|[]()$#!*?^\\") != NULL) {
171: if (write(fd, "'", 1) != 1)
172: ret = -1;
173: for (s = arg; (x = strchr(s, '\'')) != NULL; s = x + 1) {
174: if (write(fd, s, x - s + 1) != x - s + 1
175: || write(fd, "'", 1) != 1)
176: ret = -1;
177: }
178: len = strlen(s);
179: if (write(fd, s, len) != len
180: || write(fd, "'", 1) != 1)
181: ret = -1;
182: return ret;
183: }
184:
185: len = strlen(arg);
186: if (write(fd, arg, len) != len)
187: ret = -1;
188:
189: return ret;
190: }
191:
192: static void write_filter_rules(int fd)
193: {
194: struct filter_struct *ent;
195:
196: write_sbuf(fd, " <<'#E#'\n");
197: for (ent = filter_list.head; ent; ent = ent->next) {
198: unsigned int plen;
199: char *p = get_rule_prefix(ent->match_flags, "- ", 0, &plen);
200: write_buf(fd, p, plen);
201: write_sbuf(fd, ent->pattern);
202: if (ent->match_flags & MATCHFLG_DIRECTORY)
203: write_byte(fd, '/');
204: write_byte(fd, eol_nulls ? 0 : '\n');
205: }
206: if (eol_nulls)
207: write_sbuf(fd, ";\n");
208: write_sbuf(fd, "#E#");
209: }
210:
211: /* This routine tries to write out an equivalent --read-batch command
212: * given the user's --write-batch args. However, it doesn't really
213: * understand most of the options, so it uses some overly simple
214: * heuristics to munge the command line into something that will
215: * (hopefully) work. */
216: void write_batch_shell_file(int argc, char *argv[], int file_arg_cnt)
217: {
218: int fd, i, len, err = 0;
219: char *p, filename[MAXPATHLEN];
220:
221: stringjoin(filename, sizeof filename,
222: batch_name, ".sh", NULL);
223: fd = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,
224: S_IRUSR | S_IWUSR | S_IEXEC);
225: if (fd < 0) {
226: rsyserr(FERROR, errno, "Batch file %s open error",
227: filename);
228: exit_cleanup(RERR_FILESELECT);
229: }
230:
231: /* Write argvs info to BATCH.sh file */
232: if (write_arg(fd, argv[0]) < 0)
233: err = 1;
234: if (filter_list.head) {
235: if (protocol_version >= 29)
236: write_sbuf(fd, " --filter=._-");
237: else
238: write_sbuf(fd, " --exclude-from=-");
239: }
240: for (i = 1; i < argc - file_arg_cnt; i++) {
241: p = argv[i];
242: if (strncmp(p, "--files-from", 12) == 0
243: || strncmp(p, "--filter", 8) == 0
244: || strncmp(p, "--include", 9) == 0
245: || strncmp(p, "--exclude", 9) == 0) {
246: if (strchr(p, '=') == NULL)
247: i++;
248: continue;
249: }
250: if (strcmp(p, "-f") == 0) {
251: i++;
252: continue;
253: }
254: if (write(fd, " ", 1) != 1)
255: err = 1;
256: if (strncmp(p, "--write-batch", len = 13) == 0
257: || strncmp(p, "--only-write-batch", len = 18) == 0) {
258: if (write(fd, "--read-batch", 12) != 12)
259: err = 1;
260: if (p[len] == '=') {
261: if (write(fd, "=", 1) != 1
262: || write_arg(fd, p + len + 1) < 0)
263: err = 1;
264: }
265: } else {
266: if (write_arg(fd, p) < 0)
267: err = 1;
268: }
269: }
270: if (!(p = check_for_hostspec(argv[argc - 1], &p, &i)))
271: p = argv[argc - 1];
272: if (write(fd, " ${1:-", 6) != 6
273: || write_arg(fd, p) < 0)
274: err = 1;
275: write_byte(fd, '}');
276: if (filter_list.head)
277: write_filter_rules(fd);
278: if (write(fd, "\n", 1) != 1 || close(fd) < 0 || err) {
279: rsyserr(FERROR, errno, "Batch file %s write error",
280: filename);
281: exit_cleanup(RERR_FILEIO);
282: }
283: }
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