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