X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2Fincremen.c;h=6009a2def1696c14cd6ec97d572af96dd626fd58;hb=f5461e304cf4a9a7be2cd8d6710f565996f7b567;hp=31672a34a6f63fabf7cb3f23d9c7640d5ffeaaf1;hpb=df7792b5d8f07d3fbebaee4ea4a6fb86cc117b78;p=chaz%2Ftar diff --git a/src/incremen.c b/src/incremen.c index 31672a3..6009a2d 100644 --- a/src/incremen.c +++ b/src/incremen.c @@ -1,7 +1,7 @@ /* GNU dump extensions to tar. Copyright (C) 1988, 1992, 1993, 1994, 1996, 1997, 1999, 2000, 2001, - 2003 Free Software Foundation, Inc. + 2003, 2004 Free Software Foundation, Inc. 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 @@ -127,7 +127,7 @@ scan_path (struct obstack *stk, char *path, dev_t device) char *name_buffer; /* directory, `/', and directory member */ size_t name_buffer_size; /* allocated size of name_buffer, minus 2 */ size_t name_length; /* used length in name_buffer */ - struct directory *directory; /* for checking if already already seen */ + struct directory *directory; /* for checking if already seen */ enum children children; if (! dirp) @@ -145,7 +145,7 @@ scan_path (struct obstack *stk, char *path, dev_t device) directory = find_directory (path); children = directory ? directory->children : CHANGED_CHILDREN; - + if (dirp && children != NO_CHILDREN) for (entry = dirp; (entrylen = strlen (entry)) != 0; @@ -159,24 +159,24 @@ scan_path (struct obstack *stk, char *path, dev_t device) name_buffer = xrealloc (name_buffer, name_buffer_size + 2); } strcpy (name_buffer + name_length, entry); - + if (excluded_name (name_buffer)) obstack_1grow (stk, 'N'); else { struct stat stat_data; - + if (deref_stat (dereference_option, name_buffer, &stat_data)) { stat_diag (name_buffer); continue; } - + if (S_ISDIR (stat_data.st_mode)) { bool nfs = NFS_FILE_STAT (stat_data); - - if (directory = find_directory (name_buffer), directory) + + if ((directory = find_directory (name_buffer)) != NULL) { /* With NFS, the same file can have two different devices if an NFS directory is mounted in multiple locations, @@ -184,7 +184,7 @@ scan_path (struct obstack *stk, char *path, dev_t device) To avoid spurious incremental redumping of directories, consider all NFS devices as equal, relying on the i-node to establish differences. */ - + if (! (((directory->nfs & nfs) || directory->device_number == stat_data.st_dev) && directory->inode_number == stat_data.st_ino)) @@ -209,13 +209,13 @@ scan_path (struct obstack *stk, char *path, dev_t device) stat_data.st_ino, nfs, 1); directory->children = ((listed_incremental_option - || newer_mtime_option <= stat_data.st_mtime - || (after_date_option && - newer_ctime_option <= stat_data.st_ctime)) + || OLDER_STAT_TIME (stat_data, m) + || (after_date_option + && OLDER_STAT_TIME (stat_data, c))) ? ALL_CHILDREN : CHANGED_CHILDREN); } - + if (one_file_system_option && device != stat_data.st_dev) directory->children = NO_CHILDREN; else if (children == ALL_CHILDREN) @@ -239,25 +239,24 @@ scan_path (struct obstack *stk, char *path, dev_t device) else if (children == CHANGED_CHILDREN - && stat_data.st_mtime < newer_mtime_option - && (!after_date_option - || stat_data.st_ctime < newer_ctime_option)) + && OLDER_STAT_TIME (stat_data, m) + && (!after_date_option || OLDER_STAT_TIME (stat_data, c))) obstack_1grow (stk, 'N'); else obstack_1grow (stk, 'Y'); } - + obstack_grow (stk, entry, entrylen + 1); } obstack_grow (stk, "\000\000", 2); - + free (name_buffer); if (dirp) free (dirp); } -/* Sort the contents of the obstack, anr convert it to the char * */ +/* Sort the contents of the obstack, and convert it to the char * */ static char * sort_obstack (struct obstack *stk) { @@ -267,16 +266,16 @@ sort_obstack (struct obstack *stk) char *buffer; char **array; char **array_cursor; - + counter = 0; for (cursor = pointer; *cursor; cursor += strlen (cursor) + 1) counter++; - + if (!counter) return NULL; array = obstack_alloc (stk, sizeof (char *) * (counter + 1)); - + array_cursor = array; for (cursor = pointer; *cursor; cursor += strlen (cursor) + 1) *array_cursor++ = cursor; @@ -290,7 +289,7 @@ sort_obstack (struct obstack *stk) for (array_cursor = array; *array_cursor; array_cursor++) { char *string = *array_cursor; - + while ((*cursor++ = *string++)) continue; } @@ -308,7 +307,7 @@ get_directory_contents (char *path, dev_t device) scan_path (&stk, path, device); buffer = sort_obstack (&stk); obstack_free (&stk, NULL); - return buffer;; + return buffer; } @@ -357,7 +356,10 @@ read_directory_file (void) ERROR ((0, 0, "%s:1: %s", quotearg_colon (listed_incremental_option), _("Time stamp out of range"))); else - newer_mtime_option = t; + { + newer_mtime_option.tv_sec = t; + newer_mtime_option.tv_nsec = 0; + } while (0 < (n = getline (&buf, &bufsize, fp))) { @@ -453,9 +455,13 @@ write_directory_file (void) if (fclose (fp) != 0) close_error (listed_incremental_option); } + /* Restoration of incremental dumps. */ +/* Examine the directories under directory_name and delete any + files that were not there at the time of the back-up. + FIXME: The function name is obviously a misnomer */ void gnu_restore (char const *directory_name) {