batch.c

説明を見る。
00001 /* -*- c-file-style: "linux" -*-
00002 
00003    Weiss 1/1999
00004    Batch utilities for rsync.
00005 
00006 */
00007 
00008 #include "rsync.h"
00009 #include "zlib/zlib.h"
00010 #include <time.h>
00011 
00012 extern int eol_nulls;
00013 extern int recurse;
00014 extern int xfer_dirs;
00015 extern int preserve_links;
00016 extern int preserve_hard_links;
00017 extern int preserve_devices;
00018 extern int preserve_uid;
00019 extern int preserve_gid;
00020 extern int always_checksum;
00021 extern int do_compression;
00022 extern int def_compress_level;
00023 extern int protocol_version;
00024 extern char *batch_name;
00025 
00026 extern struct filter_list_struct filter_list;
00027 
00028 static int tweaked_compress_level;
00029 
00030 static int *flag_ptr[] = {
00031         &recurse,               /* 0 */
00032         &preserve_uid,          /* 1 */
00033         &preserve_gid,          /* 2 */
00034         &preserve_links,        /* 3 */
00035         &preserve_devices,      /* 4 */
00036         &preserve_hard_links,   /* 5 */
00037         &always_checksum,       /* 6 */
00038         &xfer_dirs,             /* 7 (protocol 29) */
00039         &tweaked_compress_level,/* 8 (protocol 29) */
00040         NULL
00041 };
00042 
00043 static char *flag_name[] = {
00044         "--recurse (-r)",
00045         "--owner (-o)",
00046         "--group (-g)",
00047         "--links (-l)",
00048         "--devices (-D)",
00049         "--hard-links (-H)",
00050         "--checksum (-c)",
00051         "--dirs (-d)",
00052         "--compress (-z)",
00053         NULL
00054 };
00055 
00056 void write_stream_flags(int fd)
00057 {
00058         int i, flags;
00059 
00060 #if Z_DEFAULT_COMPRESSION == -1
00061         tweaked_compress_level = do_compression ? def_compress_level + 2 : 0;
00062 #else
00063 #error internal logic error!  Fix def_compress_level logic above and below too!
00064 #endif
00065 
00066         /* Start the batch file with a bitmap of data-stream-affecting
00067          * flags. */
00068         if (protocol_version < 29)
00069                 flag_ptr[7] = NULL;
00070         for (i = 0, flags = 0; flag_ptr[i]; i++) {
00071                 if (*flag_ptr[i])
00072                         flags |= 1 << i;
00073         }
00074         write_int(fd, flags);
00075 }
00076 
00077 void read_stream_flags(int fd)
00078 {
00079         int i, flags;
00080 
00081         if (protocol_version < 29)
00082                 flag_ptr[7] = NULL;
00083         for (i = 0, flags = read_int(fd); flag_ptr[i]; i++) {
00084                 int set = flags & (1 << i) ? 1 : 0;
00085                 if (*flag_ptr[i] != set) {
00086                         if (verbose) {
00087                                 rprintf(FINFO,
00088                                         "%sing the %s option to match the batchfile.\n",
00089                                         set ? "Sett" : "Clear", flag_name[i]);
00090                         }
00091                         *flag_ptr[i] = set;
00092                 }
00093         }
00094         if (protocol_version < 29) {
00095                 if (recurse)
00096                         xfer_dirs |= 1;
00097                 else if (xfer_dirs < 2)
00098                         xfer_dirs = 0;
00099         }
00100 
00101         if (tweaked_compress_level == 0 || tweaked_compress_level == 2)
00102                 do_compression = 0;
00103         else {
00104                 do_compression = 1;
00105                 def_compress_level = tweaked_compress_level - 2;
00106         }
00107 }
00108 
00109 static void write_arg(int fd, char *arg)
00110 {
00111         char *x, *s;
00112 
00113         if (*arg == '-' && (x = strchr(arg, '=')) != NULL) {
00114                 write(fd, arg, x - arg + 1);
00115                 arg += x - arg + 1;
00116         }
00117 
00118         if (strpbrk(arg, " \"'&;|[]()$#!*?^\\") != NULL) {
00119                 write(fd, "'", 1);
00120                 for (s = arg; (x = strchr(s, '\'')) != NULL; s = x + 1) {
00121                         write(fd, s, x - s + 1);
00122                         write(fd, "'", 1);
00123                 }
00124                 write(fd, s, strlen(s));
00125                 write(fd, "'", 1);
00126                 return;
00127         }
00128 
00129         write(fd, arg, strlen(arg));
00130 }
00131 
00132 static void write_filter_rules(int fd)
00133 {
00134         struct filter_struct *ent;
00135 
00136         write_sbuf(fd, " <<'#E#'\n");
00137         for (ent = filter_list.head; ent; ent = ent->next) {
00138                 unsigned int plen;
00139                 char *p = get_rule_prefix(ent->match_flags, "- ", 0, &plen);
00140                 write_buf(fd, p, plen);
00141                 write_sbuf(fd, ent->pattern);
00142                 if (ent->match_flags & MATCHFLG_DIRECTORY)
00143                         write_byte(fd, '/');
00144                 write_byte(fd, eol_nulls ? 0 : '\n');
00145         }
00146         if (eol_nulls)
00147                 write_sbuf(fd, ";\n");
00148         write_sbuf(fd, "#E#");
00149 }
00150 
00151 /* This routine tries to write out an equivalent --read-batch command
00152  * given the user's --write-batch args.  However, it doesn't really
00153  * understand most of the options, so it uses some overly simple
00154  * heuristics to munge the command line into something that will
00155  * (hopefully) work. */
00156 void write_batch_shell_file(int argc, char *argv[], int file_arg_cnt)
00157 {
00158         int fd, i, len;
00159         char *p, filename[MAXPATHLEN];
00160 
00161         stringjoin(filename, sizeof filename,
00162                    batch_name, ".sh", NULL);
00163         fd = do_open(filename, O_WRONLY | O_CREAT | O_TRUNC,
00164                      S_IRUSR | S_IWUSR | S_IEXEC);
00165         if (fd < 0) {
00166                 rsyserr(FERROR, errno, "Batch file %s open error",
00167                         filename);
00168                 exit_cleanup(1);
00169         }
00170 
00171         /* Write argvs info to BATCH.sh file */
00172         write_arg(fd, argv[0]);
00173         if (filter_list.head) {
00174                 if (protocol_version >= 29)
00175                         write_sbuf(fd, " --filter=._-");
00176                 else
00177                         write_sbuf(fd, " --exclude-from=-");
00178         }
00179         for (i = 1; i < argc - file_arg_cnt; i++) {
00180                 p = argv[i];
00181                 if (strncmp(p, "--files-from", 12) == 0
00182                     || strncmp(p, "--filter", 8) == 0
00183                     || strncmp(p, "--include", 9) == 0
00184                     || strncmp(p, "--exclude", 9) == 0) {
00185                         if (strchr(p, '=') == NULL)
00186                                 i++;
00187                         continue;
00188                 }
00189                 if (strcmp(p, "-f") == 0) {
00190                         i++;
00191                         continue;
00192                 }
00193                 write(fd, " ", 1);
00194                 if (strncmp(p, "--write-batch", len = 13) == 0
00195                  || strncmp(p, "--only-write-batch", len = 18) == 0) {
00196                         write(fd, "--read-batch", 12);
00197                         if (p[len] == '=') {
00198                                 write(fd, "=", 1);
00199                                 write_arg(fd, p + len + 1);
00200                         }
00201                 } else
00202                         write_arg(fd, p);
00203         }
00204         if (!(p = check_for_hostspec(argv[argc - 1], &p, &i)))
00205                 p = argv[argc - 1];
00206         write(fd, " ${1:-", 6);
00207         write_arg(fd, p);
00208         write_byte(fd, '}');
00209         if (filter_list.head)
00210                 write_filter_rules(fd);
00211         if (write(fd, "\n", 1) != 1 || close(fd) < 0) {
00212                 rsyserr(FERROR, errno, "Batch file %s write error",
00213                         filename);
00214                 exit_cleanup(1);
00215         }
00216 }

rsyncに対してSat Dec 5 19:45:40 2009に生成されました。  doxygen 1.4.7