batch.c

   1 /* -*- c-file-style: "linux" -*-
   2
   3    Weiss 1/1999
   4    Batch utilities for rsync.
   5
   6 */
   7
   8 #include "rsync.h"
   9 #include <time.h>
  10
  11 extern int am_sender;
  12 extern int eol_nulls;
  13 extern int recurse;
  14 extern int preserve_links;
  15 extern int preserve_hard_links;
  16 extern int preserve_devices;
  17 extern int preserve_uid;
  18 extern int preserve_gid;
  19 extern int always_checksum;
  20 extern int protocol_version;
  21 extern char *batch_name;
  22
  23 extern struct filter_list_struct filter_list;
  24
  25 static int *flag_ptr[] = {
  26         &recurse,
  27         &preserve_uid,
  28         &preserve_gid,
  29         &preserve_links,
  30         &preserve_devices,
  31         &preserve_hard_links,
  32         &always_checksum,
  33         NULL
  34 };
  35
  36 static char *flag_name[] = {
  37         "--recurse (-r)",
  38         "--owner (-o)",
  39         "--group (-g)",
  40         "--links (-l)",
  41         "--devices (-D)",
  42         "--hard-links (-H)",
  43         "--checksum (-c)",
  44         NULL
  45 };
  46
  47 void write_stream_flags(int fd)
  48 {
  49         int i, flags;
  50
  51         /* Start the batch file with a bitmap of data-stream-affecting
  52          * flags. */
  53         for (i = 0, flags = 0; flag_ptr[i]; i++) {
  54                 if (*flag_ptr[i])
  55                         flags |= 1 << i;
  56         }
  57         write_int(fd, flags);
  58 }
  59
  60 void read_stream_flags(int fd)
  61 {
  62         int i, flags;
  63
  64         for (i = 0, flags = read_int(fd); flag_ptr[i]; i++) {
  65                 int set = flags & (1 << i) ? 1 : 0;
  66                 if (*flag_ptr[i] != set) {
  67                         if (verbose) {
  68                                 rprintf(FINFO,
  69                                         "%sing the %s option to match the batchfile.\n",
  70                                         set ? "Sett" : "Clear", flag_name[i]);
  71                         }
  72                         *flag_ptr[i] = set;
  73                 }
  74         }
  75 }
  76
  77 static void write_arg(int fd, char *arg)
  78 {
  79         char *x, *s;
  80
  81         if (*arg == '-' && (x = strchr(arg, '=')) != NULL) {
  82                 write(fd, arg, x - arg + 1);
  83                 arg += x - arg + 1;
  84         }
  85
  86         if (strpbrk(arg, " \"'&;|[]()$#!*?^\\") != NULL) {
  87                 write(fd, "'", 1);
  88                 for (s = arg; (x = strchr(s, '\'')) != NULL; s = x + 1) {
  89                         write(fd, s, x - s + 1);
  90                         write(fd, "'", 1);
  91                 }
  92                 write(fd, s, strlen(s));
  93                 write(fd, "'", 1);
  94                 return;
  95         }
  96
  97         write(fd, arg, strlen(arg));
  98 }
  99
 100 static void write_filter_rules(int fd)
 101 {
 102         struct filter_struct *ent;
 103
 104         write_sbuf(fd, " <<'#E#'\n");
 105         for (ent = filter_list.head; ent; ent = ent->next) {
 106                 unsigned int plen;
 107                 char *p = get_rule_prefix(ent->match_flags, "- ", &plen);
 108                 write_buf(fd, p, plen);
 109                 write_sbuf(fd, ent->pattern);
 110                 if (ent->match_flags & MATCHFLG_DIRECTORY)
 111                         write_byte(fd, '/');
 112                 write_byte(fd, eol_nulls ? 0 : '\n');
 113         }
 114         if (eol_nulls)
 115                 write_sbuf(fd, ";\n");
 116         write_sbuf(fd, "#E#");
 117 }
 118
 119 /* This routine tries to write out an equivalent --read-batch command
 120  * given the user's --write-batch args.  However, it doesn't really
 121  * understand most of the options, so it uses some overly simple
 122  * heuristics to munge the command line into something that will
 123  * (hopefully) work. */
 124 void write_batch_shell_file(int argc, char *argv[], int file_arg_cnt)
 125 {
 126         int fd, i;
 127         char *p, filename[MAXPATHLEN];
 128
 129         stringjoin(filename, sizeof filename,
 130                    batch_name, ".sh", NULL);
 131         fd = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,
 132                      S_IRUSR | S_IWUSR | S_IEXEC);
 133         if (fd < 0) {
 134                 rsyserr(FERROR, errno, "Batch file %s open error", filename);
 135                 exit_cleanup(1);
 136         }
 137
 138         /* Write argvs info to BATCH.sh file */
 139         write_arg(fd, argv[0]);
 140         if (filter_list.head) {
 141                 if (protocol_version >= 29)
 142                         write_sbuf(fd, " --filter=._-");
 143                 else
 144                         write_sbuf(fd, " --exclude-from=-");
 145         }
 146         for (i = 1; i < argc - file_arg_cnt; i++) {
 147                 p = argv[i];
 148                 if (strncmp(p, "--files-from", 12) == 0
 149                     || strncmp(p, "--filter", 8) == 0
 150                     || strncmp(p, "--include", 9) == 0
 151                     || strncmp(p, "--exclude", 9) == 0) {
 152                         if (strchr(p, '=') == NULL)
 153                                 i++;
 154                         continue;
 155                 }
 156                 if (strcmp(p, "-f") == 0) {
 157                         i++;
 158                         continue;
 159                 }
 160                 write(fd, " ", 1);
 161                 if (strncmp(p, "--write-batch", 13) == 0) {
 162                         write(fd, "--read-batch", 12);
 163                         if (p[13] == '=') {
 164                                 write(fd, "=", 1);
 165                                 write_arg(fd, p + 14);
 166                         }
 167                 } else
 168                         write_arg(fd, p);
 169         }
 170         if ((p = find_colon(argv[argc - 1])) != NULL) {
 171                 if (*++p == ':')
 172                         p++;
 173         } else
 174                 p = argv[argc - 1];
 175         write(fd, " ${1:-", 6);
 176         write_arg(fd, p);
 177         write_byte(fd, '}');
 178         if (filter_list.head)
 179                 write_filter_rules(fd);
 180         if (write(fd, "\n", 1) != 1 || close(fd) < 0) {
 181                 rsyserr(FERROR, errno, "Batch file %s write error", filename);
 182                 exit_cleanup(1);
 183         }
 184 }
 185
 186 void show_flist(int index, struct file_struct **fptr)
 187 {
 188         /*  for debugging    show_flist(flist->count, flist->files * */
 189
 190         int i;
 191         for (i = 0; i < index; i++) {
 192                 rprintf(FINFO, "flist->flags=%#x\n", fptr[i]->flags);
 193                 rprintf(FINFO, "flist->modtime=%#lx\n",
 194                         (long unsigned) fptr[i]->modtime);
 195                 rprintf(FINFO, "flist->length=%.0f\n",
 196                         (double) fptr[i]->length);
 197                 rprintf(FINFO, "flist->mode=%#o\n", (int) fptr[i]->mode);
 198                 rprintf(FINFO, "flist->basename=%s\n", fptr[i]->basename);
 199                 if (fptr[i]->dirname)
 200                         rprintf(FINFO, "flist->dirname=%s\n",
 201                                 fptr[i]->dirname);
 202                 if (am_sender && fptr[i]->dir.root)
 203                         rprintf(FINFO, "flist->dir.root=%s\n",
 204                                 fptr[i]->dir.root);
 205         }
 206 }
 207
 208 void show_argvs(int argc, char *argv[])
 209 {
 210         /*  for debugging  * */
 211
 212         int i;
 213         rprintf(FINFO, "BATCH.C:show_argvs,argc=%d\n", argc);
 214         for (i = 0; i < argc; i++) {
 215                 /*    if (argv[i])   */
 216                 rprintf(FINFO, "i=%d,argv[i]=%s\n", i, argv[i]);
 217
 218         }
 219 }