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284 lines
6.7 KiB
284 lines
6.7 KiB
/*
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* Support for the batch-file options.
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*
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* Copyright (C) 1999 Weiss
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* Copyright (C) 2004 Chris Shoemaker
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* Copyright (C) 2004-2014 Wayne Davison
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, visit the http://fsf.org website.
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*/
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#include "rsync.h"
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#include <zlib.h>
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#include <time.h>
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extern int eol_nulls;
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extern int recurse;
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extern int xfer_dirs;
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extern int preserve_links;
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extern int preserve_hard_links;
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extern int preserve_devices;
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extern int preserve_uid;
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extern int preserve_gid;
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extern int preserve_acls;
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extern int preserve_xattrs;
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extern int always_checksum;
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extern int do_compression;
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extern int inplace;
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extern int append_mode;
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extern int protocol_version;
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extern char *batch_name;
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#ifdef ICONV_OPTION
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extern char *iconv_opt;
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#endif
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extern filter_rule_list filter_list;
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int batch_stream_flags;
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static int tweaked_append;
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static int tweaked_append_verify;
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static int tweaked_iconv;
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static int *flag_ptr[] = {
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&recurse, /* 0 */
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&preserve_uid, /* 1 */
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&preserve_gid, /* 2 */
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&preserve_links, /* 3 */
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&preserve_devices, /* 4 */
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&preserve_hard_links, /* 5 */
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&always_checksum, /* 6 */
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&xfer_dirs, /* 7 (protocol 29) */
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&do_compression, /* 8 (protocol 29) */
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&tweaked_iconv, /* 9 (protocol 30) */
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&preserve_acls, /* 10 (protocol 30) */
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&preserve_xattrs, /* 11 (protocol 30) */
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&inplace, /* 12 (protocol 30) */
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&tweaked_append, /* 13 (protocol 30) */
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&tweaked_append_verify, /* 14 (protocol 30) */
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NULL
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};
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static char *flag_name[] = {
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"--recurse (-r)",
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"--owner (-o)",
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"--group (-g)",
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"--links (-l)",
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"--devices (-D)",
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"--hard-links (-H)",
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"--checksum (-c)",
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"--dirs (-d)",
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"--compress (-z)",
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"--iconv",
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"--acls (-A)",
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"--xattrs (-X)",
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"--inplace",
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"--append",
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"--append-verify",
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NULL
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};
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void write_stream_flags(int fd)
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{
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int i, flags;
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tweaked_append = append_mode == 1;
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tweaked_append_verify = append_mode == 2;
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#ifdef ICONV_OPTION
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tweaked_iconv = iconv_opt != NULL;
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#endif
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/* Start the batch file with a bitmap of data-stream-affecting
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* flags. */
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for (i = 0, flags = 0; flag_ptr[i]; i++) {
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if (*flag_ptr[i])
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flags |= 1 << i;
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}
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write_int(fd, flags);
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}
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void read_stream_flags(int fd)
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{
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batch_stream_flags = read_int(fd);
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}
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void check_batch_flags(void)
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{
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int i;
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if (protocol_version < 29)
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flag_ptr[7] = NULL;
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else if (protocol_version < 30)
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flag_ptr[9] = NULL;
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tweaked_append = append_mode == 1;
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tweaked_append_verify = append_mode == 2;
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#ifdef ICONV_OPTION
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tweaked_iconv = iconv_opt != NULL;
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#endif
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for (i = 0; flag_ptr[i]; i++) {
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int set = batch_stream_flags & (1 << i) ? 1 : 0;
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if (*flag_ptr[i] != set) {
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if (i == 9) {
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rprintf(FERROR,
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"%s specify the --iconv option to use this batch file.\n",
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set ? "Please" : "Do not");
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exit_cleanup(RERR_SYNTAX);
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}
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if (INFO_GTE(MISC, 1)) {
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rprintf(FINFO,
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"%sing the %s option to match the batchfile.\n",
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set ? "Sett" : "Clear", flag_name[i]);
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}
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*flag_ptr[i] = set;
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}
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}
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if (protocol_version < 29) {
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if (recurse)
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xfer_dirs |= 1;
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else if (xfer_dirs < 2)
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xfer_dirs = 0;
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}
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if (tweaked_append)
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append_mode = 1;
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else if (tweaked_append_verify)
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append_mode = 2;
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}
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static int write_arg(int fd, char *arg)
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{
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char *x, *s;
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int len, ret = 0;
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if (*arg == '-' && (x = strchr(arg, '=')) != NULL) {
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if (write(fd, arg, x - arg + 1) != x - arg + 1)
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ret = -1;
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arg += x - arg + 1;
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}
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if (strpbrk(arg, " \"'&;|[]()$#!*?^\\") != NULL) {
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if (write(fd, "'", 1) != 1)
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ret = -1;
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for (s = arg; (x = strchr(s, '\'')) != NULL; s = x + 1) {
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if (write(fd, s, x - s + 1) != x - s + 1
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|| write(fd, "'", 1) != 1)
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ret = -1;
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}
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len = strlen(s);
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if (write(fd, s, len) != len
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|| write(fd, "'", 1) != 1)
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ret = -1;
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return ret;
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}
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len = strlen(arg);
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if (write(fd, arg, len) != len)
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ret = -1;
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return ret;
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}
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static void write_filter_rules(int fd)
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{
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filter_rule *ent;
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write_sbuf(fd, " <<'#E#'\n");
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for (ent = filter_list.head; ent; ent = ent->next) {
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unsigned int plen;
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char *p = get_rule_prefix(ent, "- ", 0, &plen);
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write_buf(fd, p, plen);
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write_sbuf(fd, ent->pattern);
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if (ent->rflags & FILTRULE_DIRECTORY)
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write_byte(fd, '/');
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write_byte(fd, eol_nulls ? 0 : '\n');
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}
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if (eol_nulls)
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write_sbuf(fd, ";\n");
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write_sbuf(fd, "#E#");
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}
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/* This routine tries to write out an equivalent --read-batch command
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* given the user's --write-batch args. However, it doesn't really
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* understand most of the options, so it uses some overly simple
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* heuristics to munge the command line into something that will
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* (hopefully) work. */
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void write_batch_shell_file(int argc, char *argv[], int file_arg_cnt)
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{
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int fd, i, len, err = 0;
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char *p, filename[MAXPATHLEN];
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stringjoin(filename, sizeof filename,
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batch_name, ".sh", NULL);
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fd = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,
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S_IRUSR | S_IWUSR | S_IXUSR);
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if (fd < 0) {
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rsyserr(FERROR, errno, "Batch file %s open error",
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filename);
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exit_cleanup(RERR_FILESELECT);
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}
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/* Write argvs info to BATCH.sh file */
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if (write_arg(fd, argv[0]) < 0)
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err = 1;
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if (filter_list.head) {
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if (protocol_version >= 29)
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write_sbuf(fd, " --filter=._-");
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else
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write_sbuf(fd, " --exclude-from=-");
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}
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for (i = 1; i < argc - file_arg_cnt; i++) {
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p = argv[i];
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if (strncmp(p, "--files-from", 12) == 0
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|| strncmp(p, "--filter", 8) == 0
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|| strncmp(p, "--include", 9) == 0
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|| strncmp(p, "--exclude", 9) == 0) {
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if (strchr(p, '=') == NULL)
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i++;
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continue;
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}
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if (strcmp(p, "-f") == 0) {
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i++;
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continue;
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}
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if (write(fd, " ", 1) != 1)
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err = 1;
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if (strncmp(p, "--write-batch", len = 13) == 0
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|| strncmp(p, "--only-write-batch", len = 18) == 0) {
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if (write(fd, "--read-batch", 12) != 12)
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err = 1;
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if (p[len] == '=') {
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if (write(fd, "=", 1) != 1
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|| write_arg(fd, p + len + 1) < 0)
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err = 1;
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}
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} else {
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if (write_arg(fd, p) < 0)
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err = 1;
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}
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}
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if (!(p = check_for_hostspec(argv[argc - 1], &p, &i)))
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p = argv[argc - 1];
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if (write(fd, " ${1:-", 6) != 6
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|| write_arg(fd, p) < 0)
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err = 1;
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write_byte(fd, '}');
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if (filter_list.head)
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write_filter_rules(fd);
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if (write(fd, "\n", 1) != 1 || close(fd) < 0 || err) {
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rsyserr(FERROR, errno, "Batch file %s write error",
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filename);
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exit_cleanup(RERR_FILEIO);
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}
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}
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