Annotation of embedaddon/rsync/batch.c, revision 1.1.1.4
1.1 misho 1: /*
2: * Support for the batch-file options.
3: *
4: * Copyright (C) 1999 Weiss
5: * Copyright (C) 2004 Chris Shoemaker
1.1.1.4 ! misho 6: * Copyright (C) 2004-2020 Wayne Davison
1.1 misho 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"
1.1.1.2 misho 23: #include <zlib.h>
1.1 misho 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;
1.1.1.4 ! misho 40: extern int write_batch;
1.1 misho 41: extern int protocol_version;
1.1.1.4 ! misho 42: extern int raw_argc, cooked_argc;
! 43: extern char **raw_argv, **cooked_argv;
1.1 misho 44: extern char *batch_name;
45: #ifdef ICONV_OPTION
46: extern char *iconv_opt;
47: #endif
48:
1.1.1.2 misho 49: extern filter_rule_list filter_list;
1.1 misho 50:
1.1.1.4 ! misho 51: int batch_fd = -1;
! 52: int batch_sh_fd = -1;
1.1 misho 53: int batch_stream_flags;
54:
55: static int tweaked_append;
56: static int tweaked_append_verify;
57: static int tweaked_iconv;
58:
59: static int *flag_ptr[] = {
60: &recurse, /* 0 */
61: &preserve_uid, /* 1 */
62: &preserve_gid, /* 2 */
63: &preserve_links, /* 3 */
64: &preserve_devices, /* 4 */
65: &preserve_hard_links, /* 5 */
66: &always_checksum, /* 6 */
67: &xfer_dirs, /* 7 (protocol 29) */
68: &do_compression, /* 8 (protocol 29) */
69: &tweaked_iconv, /* 9 (protocol 30) */
70: &preserve_acls, /* 10 (protocol 30) */
71: &preserve_xattrs, /* 11 (protocol 30) */
72: &inplace, /* 12 (protocol 30) */
73: &tweaked_append, /* 13 (protocol 30) */
74: &tweaked_append_verify, /* 14 (protocol 30) */
75: NULL
76: };
77:
78: static char *flag_name[] = {
79: "--recurse (-r)",
80: "--owner (-o)",
81: "--group (-g)",
82: "--links (-l)",
83: "--devices (-D)",
84: "--hard-links (-H)",
85: "--checksum (-c)",
86: "--dirs (-d)",
87: "--compress (-z)",
88: "--iconv",
89: "--acls (-A)",
90: "--xattrs (-X)",
91: "--inplace",
92: "--append",
93: "--append-verify",
94: NULL
95: };
96:
97: void write_stream_flags(int fd)
98: {
99: int i, flags;
100:
101: tweaked_append = append_mode == 1;
102: tweaked_append_verify = append_mode == 2;
103: #ifdef ICONV_OPTION
104: tweaked_iconv = iconv_opt != NULL;
105: #endif
106:
107: /* Start the batch file with a bitmap of data-stream-affecting
108: * flags. */
109: for (i = 0, flags = 0; flag_ptr[i]; i++) {
110: if (*flag_ptr[i])
111: flags |= 1 << i;
112: }
113: write_int(fd, flags);
114: }
115:
116: void read_stream_flags(int fd)
117: {
118: batch_stream_flags = read_int(fd);
119: }
120:
121: void check_batch_flags(void)
122: {
123: int i;
124:
125: if (protocol_version < 29)
126: flag_ptr[7] = NULL;
127: else if (protocol_version < 30)
128: flag_ptr[9] = NULL;
129: tweaked_append = append_mode == 1;
130: tweaked_append_verify = append_mode == 2;
131: #ifdef ICONV_OPTION
132: tweaked_iconv = iconv_opt != NULL;
133: #endif
134: for (i = 0; flag_ptr[i]; i++) {
135: int set = batch_stream_flags & (1 << i) ? 1 : 0;
136: if (*flag_ptr[i] != set) {
137: if (i == 9) {
138: rprintf(FERROR,
139: "%s specify the --iconv option to use this batch file.\n",
140: set ? "Please" : "Do not");
141: exit_cleanup(RERR_SYNTAX);
142: }
1.1.1.2 misho 143: if (INFO_GTE(MISC, 1)) {
1.1 misho 144: rprintf(FINFO,
145: "%sing the %s option to match the batchfile.\n",
146: set ? "Sett" : "Clear", flag_name[i]);
147: }
148: *flag_ptr[i] = set;
149: }
150: }
151: if (protocol_version < 29) {
152: if (recurse)
153: xfer_dirs |= 1;
154: else if (xfer_dirs < 2)
155: xfer_dirs = 0;
156: }
157:
158: if (tweaked_append)
159: append_mode = 1;
160: else if (tweaked_append_verify)
161: append_mode = 2;
162: }
163:
1.1.1.4 ! misho 164: static int write_arg(const char *arg)
1.1 misho 165: {
1.1.1.4 ! misho 166: const char *x, *s;
! 167: int len, err = 0;
1.1 misho 168:
169: if (*arg == '-' && (x = strchr(arg, '=')) != NULL) {
1.1.1.4 ! misho 170: err |= write(batch_sh_fd, arg, x - arg + 1) != x - arg + 1;
1.1 misho 171: arg += x - arg + 1;
172: }
173:
174: if (strpbrk(arg, " \"'&;|[]()$#!*?^\\") != NULL) {
1.1.1.4 ! misho 175: err |= write(batch_sh_fd, "'", 1) != 1;
1.1 misho 176: for (s = arg; (x = strchr(s, '\'')) != NULL; s = x + 1) {
1.1.1.4 ! misho 177: err |= write(batch_sh_fd, s, x - s + 1) != x - s + 1;
! 178: err |= write(batch_sh_fd, "'", 1) != 1;
1.1 misho 179: }
180: len = strlen(s);
1.1.1.4 ! misho 181: err |= write(batch_sh_fd, s, len) != len;
! 182: err |= write(batch_sh_fd, "'", 1) != 1;
! 183: return err;
1.1 misho 184: }
185:
186: len = strlen(arg);
1.1.1.4 ! misho 187: err |= write(batch_sh_fd, arg, len) != len;
1.1 misho 188:
1.1.1.4 ! misho 189: return err;
! 190: }
! 191:
! 192: /* Writes out a space and then an option (or other string) with an optional "=" + arg suffix. */
! 193: static int write_opt(const char *opt, const char *arg)
! 194: {
! 195: int len = strlen(opt);
! 196: int err = write(batch_sh_fd, " ", 1) != 1;
! 197: err = write(batch_sh_fd, opt, len) != len ? 1 : 0;
! 198: if (arg) {
! 199: err |= write(batch_sh_fd, "=", 1) != 1;
! 200: err |= write_arg(arg);
! 201: }
! 202: return err;
1.1 misho 203: }
204:
205: static void write_filter_rules(int fd)
206: {
1.1.1.2 misho 207: filter_rule *ent;
1.1 misho 208:
209: write_sbuf(fd, " <<'#E#'\n");
210: for (ent = filter_list.head; ent; ent = ent->next) {
211: unsigned int plen;
1.1.1.2 misho 212: char *p = get_rule_prefix(ent, "- ", 0, &plen);
1.1 misho 213: write_buf(fd, p, plen);
214: write_sbuf(fd, ent->pattern);
1.1.1.2 misho 215: if (ent->rflags & FILTRULE_DIRECTORY)
1.1 misho 216: write_byte(fd, '/');
217: write_byte(fd, eol_nulls ? 0 : '\n');
218: }
219: if (eol_nulls)
220: write_sbuf(fd, ";\n");
221: write_sbuf(fd, "#E#");
222: }
223:
1.1.1.4 ! misho 224: /* This sets batch_fd and (for --write-batch) batch_sh_fd. */
! 225: void open_batch_files(void)
! 226: {
! 227: if (write_batch) {
! 228: char filename[MAXPATHLEN];
! 229:
! 230: stringjoin(filename, sizeof filename, batch_name, ".sh", NULL);
! 231:
! 232: batch_sh_fd = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IXUSR);
! 233: if (batch_sh_fd < 0) {
! 234: rsyserr(FERROR, errno, "Batch file %s open error", full_fname(filename));
! 235: exit_cleanup(RERR_FILESELECT);
! 236: }
! 237:
! 238: batch_fd = do_open(batch_name, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
! 239: } else if (strcmp(batch_name, "-") == 0)
! 240: batch_fd = STDIN_FILENO;
! 241: else
! 242: batch_fd = do_open(batch_name, O_RDONLY, S_IRUSR | S_IWUSR);
! 243:
! 244: if (batch_fd < 0) {
! 245: rsyserr(FERROR, errno, "Batch file %s open error", full_fname(batch_name));
! 246: exit_cleanup(RERR_FILEIO);
! 247: }
! 248: }
! 249:
1.1 misho 250: /* This routine tries to write out an equivalent --read-batch command
251: * given the user's --write-batch args. However, it doesn't really
252: * understand most of the options, so it uses some overly simple
253: * heuristics to munge the command line into something that will
254: * (hopefully) work. */
1.1.1.4 ! misho 255: void write_batch_shell_file(void)
1.1 misho 256: {
1.1.1.4 ! misho 257: int i, j, len, err = 0;
! 258: char *p, *p2;
1.1 misho 259:
260: /* Write argvs info to BATCH.sh file */
1.1.1.4 ! misho 261: err |= write_arg(raw_argv[0]);
1.1 misho 262: if (filter_list.head) {
263: if (protocol_version >= 29)
1.1.1.4 ! misho 264: err |= write_opt("--filter", "._-");
1.1 misho 265: else
1.1.1.4 ! misho 266: err |= write_opt("--exclude-from", "-");
1.1 misho 267: }
1.1.1.4 ! misho 268:
! 269: /* Elide the filename args from the option list, but scan for them in reverse. */
! 270: for (i = raw_argc-1, j = cooked_argc-1; i > 0 && j >= 0; i--) {
! 271: if (strcmp(raw_argv[i], cooked_argv[j]) == 0) {
! 272: raw_argv[i] = NULL;
! 273: j--;
! 274: }
! 275: }
! 276:
! 277: for (i = 1; i < raw_argc; i++) {
! 278: if (!(p = raw_argv[i]))
! 279: continue;
1.1 misho 280: if (strncmp(p, "--files-from", 12) == 0
1.1.1.4 ! misho 281: || strncmp(p, "--filter", 8) == 0
! 282: || strncmp(p, "--include", 9) == 0
! 283: || strncmp(p, "--exclude", 9) == 0) {
1.1 misho 284: if (strchr(p, '=') == NULL)
285: i++;
286: continue;
287: }
288: if (strcmp(p, "-f") == 0) {
289: i++;
290: continue;
291: }
292: if (strncmp(p, "--write-batch", len = 13) == 0
1.1.1.4 ! misho 293: || strncmp(p, "--only-write-batch", len = 18) == 0)
! 294: err |= write_opt("--read-batch", p[len] == '=' ? p + len + 1 : NULL);
! 295: else {
! 296: err |= write(batch_sh_fd, " ", 1) != 1;
! 297: err |= write_arg(p);
1.1 misho 298: }
299: }
1.1.1.4 ! misho 300: if (!(p = check_for_hostspec(cooked_argv[cooked_argc - 1], &p2, &i)))
! 301: p = cooked_argv[cooked_argc - 1];
! 302: err |= write_opt("${1:-", NULL);
! 303: err |= write_arg(p);
! 304: err |= write(batch_sh_fd, "}", 1) != 1;
1.1 misho 305: if (filter_list.head)
1.1.1.4 ! misho 306: write_filter_rules(batch_sh_fd);
! 307: if (write(batch_sh_fd, "\n", 1) != 1 || close(batch_sh_fd) < 0 || err) {
! 308: rsyserr(FERROR, errno, "Batch file %s.sh write error", batch_name);
1.1 misho 309: exit_cleanup(RERR_FILEIO);
310: }
1.1.1.4 ! misho 311: batch_sh_fd = -1;
1.1 misho 312: }
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