X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2Fincremen.c;h=1c9113cecbc67c69707ad0c531b79865522bd182;hb=338591a48690ba9047df62fb52154171c90ee7e7;hp=4400008a87787eb172c958e35abcb6ecd411d563;hpb=a0fb51e136d3df620eb3189683aae90b25bd8dd7;p=chaz%2Ftar diff --git a/src/incremen.c b/src/incremen.c index 4400008..1c9113c 100644 --- a/src/incremen.c +++ b/src/incremen.c @@ -18,7 +18,6 @@ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include -#include #include #include #include "common.h" @@ -63,6 +62,8 @@ struct directory unsigned flags; /* See DIRF_ macros above */ struct directory *orig; /* If the directory was renamed, points to the original directory structure */ + const char *tagfile; /* Tag file, if the directory falls under + exclusion_tag_under */ char name[1]; /* file name of directory */ }; @@ -123,8 +124,9 @@ make_directory (const char *name) directory->orig = NULL; directory->flags = false; strcpy (directory->name, name); - if (ISSLASH (directory->name[namelen-1])) - directory->name[namelen-1] = 0; + if (namelen && ISSLASH (directory->name[namelen - 1])) + directory->name[namelen - 1] = 0; + directory->tagfile = NULL; return directory; } @@ -230,7 +232,8 @@ static struct directory * procdir (char *name_buffer, struct stat *stat_data, dev_t device, enum children children, - bool verbose) + bool verbose, + char *entry) { struct directory *directory; bool nfs = NFS_FILE_STAT (*stat_data); @@ -331,6 +334,39 @@ procdir (char *name_buffer, struct stat *stat_data, DIR_SET_FLAG (directory, DIRF_INIT); + { + const char *tag_file_name; + + switch (check_exclusion_tags (name_buffer, &tag_file_name)) + { + case exclusion_tag_all: + /* This warning can be duplicated by code in dump_file0, but only + in case when the topmost directory being archived contains + an exclusion tag. */ + exclusion_tag_warning (name_buffer, tag_file_name, + _("directory not dumped")); + if (entry) + *entry = 'N'; + directory->children = NO_CHILDREN; + break; + + case exclusion_tag_contents: + exclusion_tag_warning (name_buffer, tag_file_name, + _("contents not dumped")); + directory->children = NO_CHILDREN; + break; + + case exclusion_tag_under: + exclusion_tag_warning (name_buffer, tag_file_name, + _("contents not dumped")); + directory->tagfile = tag_file_name; + break; + + case exclusion_tag_none: + break; + } + } + return directory; } @@ -437,9 +473,17 @@ makedumpdir (struct directory *directory, const char *dir) const char *loc = dumpdir_locate (dump, array[i]); if (loc) { - *new_dump_ptr++ = ' '; + if (directory->tagfile) + *new_dump_ptr = strcmp (directory->tagfile, array[i]) == 0 ? + ' ' : 'I'; + else + *new_dump_ptr = ' '; + new_dump_ptr++; dump = loc + strlen (loc) + 1; } + else if (directory->tagfile) + *new_dump_ptr++ = strcmp (directory->tagfile, array[i]) == 0 ? + ' ' : 'I'; else *new_dump_ptr++ = 'Y'; /* New entry */ @@ -455,9 +499,9 @@ makedumpdir (struct directory *directory, const char *dir) /* Recursively scan the given directory. */ static char * -scan_directory (char *dir_name, dev_t device) +scan_directory (char *dir, dev_t device) { - char *dirp = savedir (dir_name); /* for scanning directory */ + char *dirp = savedir (dir); /* for scanning directory */ 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 */ @@ -465,12 +509,12 @@ scan_directory (char *dir_name, dev_t device) struct directory *directory; if (! dirp) - savedir_error (dir_name); + savedir_error (dir); - name_buffer_size = strlen (dir_name) + NAME_FIELD_SIZE; + name_buffer_size = strlen (dir) + NAME_FIELD_SIZE; name_buffer = xmalloc (name_buffer_size + 2); - strcpy (name_buffer, dir_name); - if (! ISSLASH (dir_name[strlen (dir_name) - 1])) + strcpy (name_buffer, dir); + if (! ISSLASH (dir[strlen (dir) - 1])) strcat (name_buffer, "/"); name_length = strlen (name_buffer); @@ -485,7 +529,8 @@ scan_directory (char *dir_name, dev_t device) return NULL; } - directory = procdir (name_buffer, &stat_data, device, NO_CHILDREN, false); + directory = procdir (name_buffer, &stat_data, device, NO_CHILDREN, false, + NULL); if (dirp && directory->children != NO_CHILDREN) { @@ -507,7 +552,9 @@ scan_directory (char *dir_name, dev_t device) } strcpy (name_buffer + name_length, entry + 1); - if (excluded_name (name_buffer)) + if (*entry == 'I') /* Ignored entry */ + *entry = 'N'; + else if (excluded_name (name_buffer)) *entry = 'N'; else { @@ -520,10 +567,10 @@ scan_directory (char *dir_name, dev_t device) if (S_ISDIR (stat_data.st_mode)) { + *entry = 'D'; procdir (name_buffer, &stat_data, device, directory->children, - verbose_option); - *entry = 'D'; + verbose_option, entry); } else if (one_file_system_option && device != stat_data.st_dev) @@ -552,19 +599,26 @@ scan_directory (char *dir_name, dev_t device) } char * -get_directory_contents (char *dir_name, dev_t device) +get_directory_contents (char *dir, dev_t device) { - return scan_directory (dir_name, device); + return scan_directory (dir, device); } static void obstack_code_rename (struct obstack *stk, char *from, char *to) { + char *s; + + s = from[0] == 0 ? from : + safer_name_suffix (from, false, absolute_names_option); obstack_1grow (stk, 'R'); - obstack_grow (stk, from, strlen (from) + 1); + obstack_grow (stk, s, strlen (s) + 1); + + s = to[0] == 0 ? to: + safer_name_suffix (to, false, absolute_names_option); obstack_1grow (stk, 'T'); - obstack_grow (stk, to, strlen (to) + 1); + obstack_grow (stk, s, strlen (s) + 1); } static bool @@ -1355,6 +1409,19 @@ try_purge_directory (char const *directory_name) arc += strlen (arc) + 1; dst = arc + 1; + /* Ensure that neither source nor destination are absolute file + names (unless permitted by -P option), and that they do not + contain dubious parts (e.g. ../). + + This is an extra safety precaution. Besides, it might be + necessary to extract from archives created with tar versions + prior to 1.19. */ + + if (*src) + src = safer_name_suffix (src, false, absolute_names_option); + if (*dst) + dst = safer_name_suffix (dst, false, absolute_names_option); + if (*src == 0) src = temp_stub; else if (*dst == 0)