Annotation of embedaddon/rsync/batch.c, revision 1.1
1.1 ! misho 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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