| 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 | } |