Morgan Weetman
Consultant
Red Hat Consulting
http://www.apac.redhat.com/products/consulting/
From b6c74c78f20929fff5c92e5277ea0a6dc0f4bc7f Mon Sep 17 00:00:00 2001
From: Morgan Weetman <[email protected]>
Date: Fri, 7 Nov 2014 18:59:45 +1100
Subject: [PATCH 1/8] find: added extended attribute predicate
* find/defs.h (typedef PREDICATEFUNCTION): added pred_xattr
* find/parser.c (parse_xattr): added function, added an entry to parse_table[]
* find/pred.c (pred_xattr): added function, added an entry to pred_table[]
* find/tree.c (costlookup[]): added pred_xattr entry
---
find/defs.h | 1 +
find/parser.c | 28 ++++++++++++++++++++++++++++
find/pred.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
find/tree.c | 1 +
4 files changed, 86 insertions(+)
diff --git a/find/defs.h b/find/defs.h
index caccd2b..4ab1bb1 100644
--- a/find/defs.h
+++ b/find/defs.h
@@ -457,6 +457,7 @@ PREDICATEFUNCTION pred_uid;
PREDICATEFUNCTION pred_used;
PREDICATEFUNCTION pred_user;
PREDICATEFUNCTION pred_writable;
+PREDICATEFUNCTION pred_xattr;
PREDICATEFUNCTION pred_xtype;
PREDICATEFUNCTION pred_context;
diff --git a/find/parser.c b/find/parser.c
index dc6c47c..bb43286 100644
--- a/find/parser.c
+++ b/find/parser.c
@@ -149,6 +149,7 @@ static bool parse_xdev (const struct parser_table*, char *argv[], int *
static bool parse_ignore_race (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_noignore_race (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_warn (const struct parser_table*, char *argv[], int *arg_ptr);
+static bool parse_xattr (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_xtype (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_quit (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_context (const struct parser_table*, char *argv[], int *arg_ptr);
@@ -306,6 +307,7 @@ static struct parser_table const parse_table[] =
PARSE_TEST_NP ("wholename", wholename), /* GNU, replaced -path, but anyway -path will soon be in POSIX */
{ARG_TEST, "writable", parse_accesscheck, pred_writable}, /* GNU, 4.3.0+ */
PARSE_OPTION ("xdev", xdev), /* POSIX */
+ PARSE_TEST ("xattr", xattr), /* GNU */
PARSE_TEST ("xtype", xtype), /* GNU */
#ifdef UNIMPLEMENTED_UNIX
/* It's pretty ugly for find to know about archive formats.
@@ -2757,6 +2759,32 @@ parse_warn (const struct parser_table* entry, char **argv, int *arg_ptr)
}
static bool
+parse_xattr (const struct parser_table* entry, char **argv, int *arg_ptr)
+{
+ const char *name;
+ const int saved_argc = *arg_ptr;
+
+ if (collect_arg (argv, arg_ptr, &name))
+ {
+ fnmatch_sanitycheck ();
+ if (check_name_arg ("-xattr", name))
+ {
+ struct predicate *our_pred = insert_primary (entry, name);
+ our_pred->need_stat = our_pred->need_type = false;
+ our_pred->args.str = name;
+ our_pred->est_success_rate = estimate_pattern_match_rate (name, 0);
+ return true;
+ }
+ else
+ {
+ *arg_ptr = saved_argc; /* don't consume the invalid argument. */
+ }
+ }
+ return false;
+}
+
+
+static bool
parse_xtype (const struct parser_table* entry, char **argv, int *arg_ptr)
{
return insert_type (argv, arg_ptr, entry, pred_xtype);
diff --git a/find/pred.c b/find/pred.c
index 3a89679..048e263 100644
--- a/find/pred.c
+++ b/find/pred.c
@@ -141,6 +141,7 @@ struct pred_assoc pred_table[] =
{pred_used, "used "},
{pred_user, "user "},
{pred_writable, "writable "},
+ {pred_xattr, "xattr "},
{pred_xtype, "xtype "},
{pred_context, "context"},
{0, "none "}
@@ -1156,6 +1157,61 @@ pred_user (const char *pathname, struct stat *stat_buf, struct predicate *pred_p
}
bool
+pred_xattr (const char *pathname, struct stat *stat_buf, struct predicate *pred_ptr)
+{
+ (void) pathname;
+ const char *re_string = pred_ptr->args.str;
+ char empty[0];
+ char *list;
+ char *substrings;
+ ssize_t list_size;
+ int i, j;
+ bool ret = false;
+ regex_t re_pattern;
+
+ // get size of xattr list for the given path by passing an empty list
+ list_size = listxattr(pathname, empty, 0);
+
+ // allocate just enough memory to hold all xattrs
+ list = malloc(list_size);
+
+ // used to hold individual attributes (substrings)
+ // allocate same size as list just in case there's only one xattr
+ substrings = malloc(list_size);
+
+ // retrieve the list of xattrs
+ listxattr(pathname, list, list_size);
+
+ // compile regex pattern
+ if (regcomp(&re_pattern, re_string, REG_ICASE|REG_NOSUB|REG_NEWLINE) != 0) {
+ free(list);
+ free(substrings);
+ return(ret);
+ }
+
+ // break list into asciiz strings
+ for (i = 0, j = 0; i < list_size; i++) {
+ substrings[j] = list[i];
+ if (list[i] == 0) {
+ // perform regex match against substring
+ j = 0;
+ if (regexec(&re_pattern, substrings, (size_t) 0, NULL, 0) == 0) {
+ ret = true;
+ }
+ continue;
+ }
+ j++;
+ }
+
+ // clean up
+ free(list);
+ free(substrings);
+ regfree(&re_pattern);
+ return(ret);
+
+}
+
+bool
pred_xtype (const char *pathname, struct stat *stat_buf, struct predicate *pred_ptr)
{
struct stat sbuf; /* local copy, not stat_buf because we're using a different stat method */
diff --git a/find/tree.c b/find/tree.c
index 026dead..2dba99d 100644
--- a/find/tree.c
+++ b/find/tree.c
@@ -1001,6 +1001,7 @@ static struct pred_cost_lookup costlookup[] =
{ pred_used , NeedsStatInfo },
{ pred_user , NeedsStatInfo },
{ pred_writable , NeedsAccessInfo },
+ { pred_xattr , NeedsNothing },
{ pred_xtype , NeedsType } /* roughly correct unless most files are symlinks */
};
static int pred_table_sorted = 0;
--
1.9.3
From 0e3fadc728a35265002379220a4ae5423a0075ca Mon Sep 17 00:00:00 2001
From: Morgan Weetman <[email protected]>
Date: Tue, 9 Dec 2014 23:52:24 +1100
Subject: [PATCH 2/8] find: updated man page with xattr information
* find/find.1: added extended attribute predicate information
---
find/find.1 | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/find/find.1 b/find/find.1
index f49218e..8c4c187 100644
--- a/find/find.1
+++ b/find/find.1
@@ -920,6 +920,11 @@ mapping (or root-squashing), since many systems implement
in the client's kernel and so cannot make use of the UID mapping
information held on the server.
+.IP "\-xattr \fIpattern\fR"
+Match extended attributes against the regular expression
+\fIpattern\fR. For example to search for files that have
+capabilities set you could use '.*capa.*'
+
.IP "\-xtype \fIc\fR"
The same as
.B \-type
--
1.9.3
From c90c87217455f584090ab5c517ae6bf1468a5649 Mon Sep 17 00:00:00 2001
From: Morgan Weetman <[email protected]>
Date: Sat, 13 Dec 2014 20:14:05 +1100
Subject: [PATCH 3/8] find: -xattr now obeys -regextype
* find/pred.c: removed regcomp call
* find/parser.c: parse_xattr function altered to obey -regextype
added insert_xattr function
added parse_ixattr function
* find/find.1: updated -xattr entry
---
find/find.1 | 4 +++-
find/parser.c | 57 ++++++++++++++++++++++++++++++++++++++++-----------------
find/pred.c | 13 ++-----------
3 files changed, 45 insertions(+), 29 deletions(-)
diff --git a/find/find.1 b/find/find.1
index 8c4c187..096a3ed 100644
--- a/find/find.1
+++ b/find/find.1
@@ -923,7 +923,9 @@ information held on the server.
.IP "\-xattr \fIpattern\fR"
Match extended attributes against the regular expression
\fIpattern\fR. For example to search for files that have
-capabilities set you could use '.*capa.*'
+capabilities set you could use '.*capab.*'. This option
+also takes advantage of
+.B \-regextype
.IP "\-xtype \fIc\fR"
The same as
diff --git a/find/parser.c b/find/parser.c
index bb43286..16163f5 100644
--- a/find/parser.c
+++ b/find/parser.c
@@ -110,6 +110,7 @@ static bool parse_iname (const struct parser_table*, char *argv[], int *
static bool parse_inum (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_ipath (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_iregex (const struct parser_table*, char *argv[], int *arg_ptr);
+static bool parse_ixattr (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_iwholename (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_links (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_lname (const struct parser_table*, char *argv[], int *arg_ptr);
@@ -165,6 +166,9 @@ static bool insert_type (char **argv, int *arg_ptr,
static bool insert_regex (char *argv[], int *arg_ptr,
const struct parser_table *entry,
int regex_options);
+static bool insert_xattr (char *argv[], int *arg_ptr,
+ const struct parser_table *entry,
+ int regex_options);
static bool insert_exec_ok (const char *action,
const struct parser_table *entry,
char *argv[],
@@ -260,6 +264,7 @@ static struct parser_table const parse_table[] =
PARSE_TEST ("inum", inum), /* GNU, Unix */
PARSE_TEST ("ipath", ipath), /* GNU, deprecated in favour of iwholename */
PARSE_TEST_NP ("iregex", iregex), /* GNU */
+ PARSE_TEST_NP ("ixattr", ixattr), /* GNU */
PARSE_TEST_NP ("iwholename", iwholename), /* GNU */
PARSE_TEST ("links", links), /* POSIX */
PARSE_TEST ("lname", lname), /* GNU */
@@ -1384,6 +1389,12 @@ parse_iregex (const struct parser_table* entry, char **argv, int *arg_ptr)
}
static bool
+parse_ixattr (const struct parser_table* entry, char **argv, int *arg_ptr)
+{
+ return insert_xattr (argv, arg_ptr, entry, RE_ICASE|options.regex_options);
+}
+
+static bool
parse_links (const struct parser_table* entry, char **argv, int *arg_ptr)
{
struct predicate *p = insert_num (argv, arg_ptr, entry);
@@ -2761,29 +2772,41 @@ parse_warn (const struct parser_table* entry, char **argv, int *arg_ptr)
static bool
parse_xattr (const struct parser_table* entry, char **argv, int *arg_ptr)
{
- const char *name;
- const int saved_argc = *arg_ptr;
+ return insert_xattr (argv, arg_ptr, entry, options.regex_options);
+}
- if (collect_arg (argv, arg_ptr, &name))
+static bool
+insert_xattr (char **argv,
+ int *arg_ptr,
+ const struct parser_table *entry,
+ int regex_options)
+{
+ const char *rx;
+ if (collect_arg (argv, arg_ptr, &rx))
{
- fnmatch_sanitycheck ();
- if (check_name_arg ("-xattr", name))
- {
- struct predicate *our_pred = insert_primary (entry, name);
- our_pred->need_stat = our_pred->need_type = false;
- our_pred->args.str = name;
- our_pred->est_success_rate = estimate_pattern_match_rate (name, 0);
- return true;
- }
- else
- {
- *arg_ptr = saved_argc; /* don't consume the invalid argument. */
- }
+ struct re_pattern_buffer *re;
+ const char *error_message;
+ struct predicate *our_pred = insert_primary_withpred (entry, pred_xattr, rx);
+ our_pred->need_stat = our_pred->need_type = false;
+ re = xmalloc (sizeof (struct re_pattern_buffer));
+ our_pred->args.regex = re;
+ re->allocated = 100;
+ re->buffer = xmalloc (re->allocated);
+ re->fastmap = NULL;
+
+ re_set_syntax (regex_options);
+ re->syntax = regex_options;
+ re->translate = NULL;
+
+ error_message = re_compile_pattern (rx, strlen (rx), re);
+ if (error_message)
+ error (EXIT_FAILURE, 0, "%s", error_message);
+ our_pred->est_success_rate = estimate_pattern_match_rate (rx, 1);
+ return true;
}
return false;
}
-
static bool
parse_xtype (const struct parser_table* entry, char **argv, int *arg_ptr)
{
diff --git a/find/pred.c b/find/pred.c
index 048e263..37e9f0e 100644
--- a/find/pred.c
+++ b/find/pred.c
@@ -33,6 +33,7 @@
#include <stdarg.h>
#include <sys/stat.h>
#include <sys/types.h>
+#include <attr/xattr.h>
#include <sys/wait.h>
#include <unistd.h> /* for unlinkat() */
@@ -1160,14 +1161,12 @@ bool
pred_xattr (const char *pathname, struct stat *stat_buf, struct predicate *pred_ptr)
{
(void) pathname;
- const char *re_string = pred_ptr->args.str;
char empty[0];
char *list;
char *substrings;
ssize_t list_size;
int i, j;
bool ret = false;
- regex_t re_pattern;
// get size of xattr list for the given path by passing an empty list
list_size = listxattr(pathname, empty, 0);
@@ -1182,20 +1181,13 @@ pred_xattr (const char *pathname, struct stat *stat_buf, struct predicate *pred_
// retrieve the list of xattrs
listxattr(pathname, list, list_size);
- // compile regex pattern
- if (regcomp(&re_pattern, re_string, REG_ICASE|REG_NOSUB|REG_NEWLINE) != 0) {
- free(list);
- free(substrings);
- return(ret);
- }
-
// break list into asciiz strings
for (i = 0, j = 0; i < list_size; i++) {
substrings[j] = list[i];
if (list[i] == 0) {
// perform regex match against substring
j = 0;
- if (regexec(&re_pattern, substrings, (size_t) 0, NULL, 0) == 0) {
+ if (regexec(pred_ptr->args.regex, substrings, (size_t) 0, NULL, 0) == 0) {
ret = true;
}
continue;
@@ -1206,7 +1198,6 @@ pred_xattr (const char *pathname, struct stat *stat_buf, struct predicate *pred_
// clean up
free(list);
free(substrings);
- regfree(&re_pattern);
return(ret);
}
--
1.9.3
From f017b99a77032d7da6ac3de854d9ac7185cb8f0c Mon Sep 17 00:00:00 2001
From: Morgan Weetman <[email protected]>
Date: Tue, 6 Jan 2015 13:54:49 +1100
Subject: [PATCH 4/8] find: -xattr now obeys symlink handling options
* find/pred.c (pred_xattr): added tests for options.symlink_handling
---
find/pred.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/find/pred.c b/find/pred.c
index 37e9f0e..ddf9917 100644
--- a/find/pred.c
+++ b/find/pred.c
@@ -1169,7 +1169,11 @@ pred_xattr (const char *pathname, struct stat *stat_buf, struct predicate *pred_
bool ret = false;
// get size of xattr list for the given path by passing an empty list
- list_size = listxattr(pathname, empty, 0);
+ if (options.symlink_handling == SYMLINK_NEVER_DEREF) {
+ list_size = llistxattr(pathname, empty, 0);
+ } else {
+ list_size = listxattr(pathname, empty, 0);
+ }
// allocate just enough memory to hold all xattrs
list = malloc(list_size);
@@ -1179,7 +1183,11 @@ pred_xattr (const char *pathname, struct stat *stat_buf, struct predicate *pred_
substrings = malloc(list_size);
// retrieve the list of xattrs
- listxattr(pathname, list, list_size);
+ if (options.symlink_handling == SYMLINK_NEVER_DEREF) {
+ llistxattr(pathname, list, list_size);
+ } else {
+ listxattr(pathname, list, list_size);
+ }
// break list into asciiz strings
for (i = 0, j = 0; i < list_size; i++) {
--
1.9.3
From 6fe70075fe7ebc5d0e457831bc65fd1d8538610d Mon Sep 17 00:00:00 2001
From: Morgan Weetman <[email protected]>
Date: Wed, 7 Jan 2015 15:31:55 +1100
Subject: [PATCH 5/8] find: added capability predicate
* find/defs.h (typedef PREDICATEFUNCTION): added pred_cap
* find/parser.c: added parse_cap function
added parse_icap function
added insert_cap function
added an entry to parse_table
* find/pred.c (pred_cap): added function, added an entry to pred_table[]
* find/tree.c (costlookup[]): added pred_cap entry
* find/find.1: added -cap and -icap entries
---
find/defs.h | 1 +
find/find.1 | 12 ++++++++++++
find/parser.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
find/pred.c | 29 +++++++++++++++++++++++++++++
find/tree.c | 1 +
5 files changed, 95 insertions(+)
diff --git a/find/defs.h b/find/defs.h
index 4ab1bb1..cd57544 100644
--- a/find/defs.h
+++ b/find/defs.h
@@ -405,6 +405,7 @@ PREDICATEFUNCTION pred_and;
PREDICATEFUNCTION pred_anewer;
PREDICATEFUNCTION pred_atime;
PREDICATEFUNCTION pred_closeparen;
+PREDICATEFUNCTION pred_cap;
PREDICATEFUNCTION pred_cmin;
PREDICATEFUNCTION pred_cnewer;
PREDICATEFUNCTION pred_comma;
diff --git a/find/find.1 b/find/find.1
index 096a3ed..6d03d85 100644
--- a/find/find.1
+++ b/find/find.1
@@ -521,6 +521,13 @@ a file has to have been accessed at least
.I two
days ago.
+.IP "\-cap \fIpattern\fR"
+Match file capabilities against the regular expression
+\fIpattern\fR. For example to search for files that have
+CAP_SETUID you could use '.*setuid.*'. This option
+also takes advantage of
+.B \-regextype
+
.IP "\-cmin \fIn\fR"
File's status was last changed \fIn\fR minutes ago.
@@ -577,6 +584,11 @@ File's numeric group ID is \fIn\fR.
.IP "\-group \fIgname\fR"
File belongs to group \fIgname\fR (numeric group ID allowed).
+.IP "\-icap \fIpattern\fR"
+Like
+.BR \-cap ,
+but the match is case insensitive.
+
.IP "\-ilname \fIpattern\fR"
Like
.BR \-lname ,
diff --git a/find/parser.c b/find/parser.c
index 16163f5..d5b5731 100644
--- a/find/parser.c
+++ b/find/parser.c
@@ -85,6 +85,7 @@ static bool parse_accesscheck (const struct parser_table*, char *argv[], int *
static bool parse_amin (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_and (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_anewer (const struct parser_table*, char *argv[], int *arg_ptr);
+static bool parse_cap (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_cmin (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_cnewer (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_comma (const struct parser_table*, char *argv[], int *arg_ptr);
@@ -105,6 +106,7 @@ static bool parse_fstype (const struct parser_table*, char *argv[], int *
static bool parse_gid (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_group (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_help (const struct parser_table*, char *argv[], int *arg_ptr);
+static bool parse_icap (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_ilname (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_iname (const struct parser_table*, char *argv[], int *arg_ptr);
static bool parse_inum (const struct parser_table*, char *argv[], int *arg_ptr);
@@ -169,6 +171,9 @@ static bool insert_regex (char *argv[], int *arg_ptr,
static bool insert_xattr (char *argv[], int *arg_ptr,
const struct parser_table *entry,
int regex_options);
+static bool insert_cap (char *argv[], int *arg_ptr,
+ const struct parser_table *entry,
+ int regex_options);
static bool insert_exec_ok (const char *action,
const struct parser_table *entry,
char *argv[],
@@ -238,6 +243,7 @@ static struct parser_table const parse_table[] =
PARSE_PUNCTUATION("and", and), /* GNU */
PARSE_TEST ("anewer", anewer), /* GNU */
{ARG_TEST, "atime", parse_time, pred_atime}, /* POSIX */
+ PARSE_TEST ("cap", cap), /* GNU */
PARSE_TEST ("cmin", cmin), /* GNU */
PARSE_TEST ("cnewer", cnewer), /* GNU */
{ARG_TEST, "ctime", parse_time, pred_ctime}, /* POSIX */
@@ -258,6 +264,7 @@ static struct parser_table const parse_table[] =
PARSE_TEST ("fstype", fstype), /* GNU, Unix */
PARSE_TEST ("gid", gid), /* GNU */
PARSE_TEST ("group", group), /* POSIX */
+ PARSE_TEST_NP ("icap", icap), /* GNU */
PARSE_OPTION ("ignore_readdir_race", ignore_race), /* GNU */
PARSE_TEST ("ilname", ilname), /* GNU */
PARSE_TEST ("iname", iname), /* GNU */
@@ -797,6 +804,12 @@ parse_anewer (const struct parser_table* entry, char **argv, int *arg_ptr)
return false;
}
+static bool
+parse_cap (const struct parser_table* entry, char **argv, int *arg_ptr)
+{
+ return insert_cap (argv, arg_ptr, entry, options.regex_options);
+}
+
bool
parse_closeparen (const struct parser_table* entry, char **argv, int *arg_ptr)
{
@@ -1277,6 +1290,12 @@ estimate_pattern_match_rate (const char *pattern, int is_regex)
}
static bool
+parse_icap (const struct parser_table* entry, char **argv, int *arg_ptr)
+{
+ return insert_cap (argv, arg_ptr, entry, RE_ICASE|options.regex_options);
+}
+
+static bool
parse_ilname (const struct parser_table* entry, char **argv, int *arg_ptr)
{
const char *name;
@@ -2924,6 +2943,39 @@ insert_type (char **argv, int *arg_ptr,
return false;
}
+static bool
+insert_cap (char **argv,
+ int *arg_ptr,
+ const struct parser_table *entry,
+ int regex_options)
+{
+ const char *rx;
+ if (collect_arg (argv, arg_ptr, &rx))
+ {
+ struct re_pattern_buffer *re;
+ const char *error_message;
+ struct predicate *our_pred = insert_primary_withpred (entry, pred_cap, rx);
+ our_pred->need_stat = true;
+ our_pred->need_type = false;
+ re = xmalloc (sizeof (struct re_pattern_buffer));
+ our_pred->args.regex = re;
+ re->allocated = 100;
+ re->buffer = xmalloc (re->allocated);
+ re->fastmap = NULL;
+
+ re_set_syntax (regex_options);
+ re->syntax = regex_options;
+ re->translate = NULL;
+
+ error_message = re_compile_pattern (rx, strlen (rx), re);
+ if (error_message)
+ error (EXIT_FAILURE, 0, "%s", error_message);
+ our_pred->est_success_rate = estimate_pattern_match_rate (rx, 1);
+ return true;
+ }
+ return false;
+}
+
/* Return true if the file accessed via FP is a terminal.
*/
diff --git a/find/pred.c b/find/pred.c
index ddf9917..83c8286 100644
--- a/find/pred.c
+++ b/find/pred.c
@@ -36,6 +36,7 @@
#include <attr/xattr.h>
#include <sys/wait.h>
#include <unistd.h> /* for unlinkat() */
+#include <sys/capability.h> /* for pred_cap() */
/* gnulib headers. */
#include "areadlink.h"
@@ -90,6 +91,7 @@ struct pred_assoc pred_table[] =
{pred_and, "and "},
{pred_anewer, "anewer "},
{pred_atime, "atime "},
+ {pred_cap, "cap "},
{pred_closeparen, ") "},
{pred_cmin, "cmin "},
{pred_cnewer, "cnewer "},
@@ -261,6 +263,33 @@ pred_atime (const char *pathname, struct stat *stat_buf, struct predicate *pred_
}
bool
+pred_cap (const char *pathname, struct stat *stat_buf, struct predicate *pred_ptr)
+{
+ (void) pathname;
+ char *cap_str;
+ cap_t caps;
+ bool ret = false;
+
+ // get capabilities
+ caps = cap_get_file(pathname);
+ cap_str = cap_to_text(caps, NULL);
+ if ( cap_str == NULL ) {
+ cap_free(caps);
+ return(ret);
+ }
+
+ // perform regex match
+ if (regexec(pred_ptr->args.regex, cap_str, (size_t) 0, NULL, 0) == 0)
+ ret = true;
+
+ // clean up
+ cap_free(caps);
+ cap_free(cap_str);
+ return(ret);
+
+}
+
+bool
pred_closeparen (const char *pathname, struct stat *stat_buf, struct predicate *pred_ptr)
{
(void) &pathname;
diff --git a/find/tree.c b/find/tree.c
index 2dba99d..d91b080 100644
--- a/find/tree.c
+++ b/find/tree.c
@@ -947,6 +947,7 @@ static struct pred_cost_lookup costlookup[] =
{ pred_and , NeedsNothing, },
{ pred_anewer , NeedsStatInfo, },
{ pred_atime , NeedsStatInfo, },
+ { pred_cap , NeedsNothing, },
{ pred_closeparen, NeedsNothing },
{ pred_cmin , NeedsStatInfo, },
{ pred_cnewer , NeedsStatInfo, },
--
1.9.3
From 8ba406c43244415504c1831e849d3ff3be07bf1e Mon Sep 17 00:00:00 2001
From: Morgan Weetman <[email protected]>
Date: Wed, 7 Jan 2015 15:44:37 +1100
Subject: [PATCH 6/8] find: added -ixattr entry to the man page
---
find/find.1 | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/find/find.1 b/find/find.1
index 6d03d85..2e3979c 100644
--- a/find/find.1
+++ b/find/find.1
@@ -628,6 +628,11 @@ but the match is case insensitive.
See \-ipath. This alternative is less portable than
.BR \-ipath .
+.IP "\-ixattr \fIpattern\fR"
+Like
+.BR \-xattr ,
+but the match is case insensitive.
+
.IP "\-links \fIn\fR"
File has \fIn\fR links.
--
1.9.3
From 27a798d0eb1cbde2f418252c9e0dcac1e112e47d Mon Sep 17 00:00:00 2001
From: Morgan Weetman <[email protected]>
Date: Wed, 7 Jan 2015 15:49:33 +1100
Subject: [PATCH 7/8] find: added xattr and cap to excuses.txt
* find/testsuite/excuses.txt: xattr and cap require root privileges
to test, may require some planning
---
find/testsuite/excuses.txt | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/find/testsuite/excuses.txt b/find/testsuite/excuses.txt
index 07dd8dc..0ea2a74 100644
--- a/find/testsuite/excuses.txt
+++ b/find/testsuite/excuses.txt
@@ -23,18 +23,20 @@ g
## Things that are hard to test because they rely on features of
## the environment
+"cap", cap), /* GNU */
"gid", gid), /* GNU */
-"uid", uid), /* GNU */
-"user", user),
"group", group),
+"ignore_readdir_race", ignore_race), /* GNU */
"mount", xdev), /* Unix */
"nogroup", nogroup),
"nouser", nouser),
"ok", ok),
-"xdev", xdev),
-"ignore_readdir_race", ignore_race), /* GNU */
"noignore_readdir_race", noignore_race), /* GNU */
"noleaf", noleaf), /* GNU */
+"uid", uid), /* GNU */
+"user", user),
+"xattr", xattr), /* GNU */
+"xdev", xdev),
## Things that might be testable but which I have not yet thought
## about enough.
--
1.9.3
From f7c7fd8233aaaac1b002376821998384958049e6 Mon Sep 17 00:00:00 2001
From: Morgan Weetman <[email protected]>
Date: Wed, 7 Jan 2015 23:11:59 +1100
Subject: [PATCH 8/8] find: updated find/Makefile.am to include libcap for -cap
---
find/Makefile.am | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/find/Makefile.am b/find/Makefile.am
index 30eba1d..0782d7c 100644
--- a/find/Makefile.am
+++ b/find/Makefile.am
@@ -4,6 +4,8 @@ localedir = $(datadir)/locale
# noinst_PROGRAMS = regexprops
# regexprops_SOURCES = regexprops.c
+LIBCAP = -lcap
+
noinst_LIBRARIES = libfindtools.a
libfindtools_a_SOURCES = finddata.c fstype.c parser.c pred.c exec.c tree.c util.c sharefile.c print.c
@@ -30,7 +32,7 @@ endif
# man_MANS is not always the same, we want to distribute all of those files.
EXTRA_DIST = defs.h sharefile.h print.h find.1 ftsfind.1 oldfind.1
AM_CPPFLAGS = -I../gl/lib -I$(top_srcdir)/lib -I$(top_srcdir)/gl/lib -I../intl -DLOCALEDIR=\"$(localedir)\"
-LDADD = ./libfindtools.a ../lib/libfind.a ../gl/lib/libgnulib.a $(LIBINTL) $(LIB_CLOCK_GETTIME) $(LIB_EACCESS) $(LIB_SELINUX) $(LIB_CLOSE) $(MODF_LIBM) $(FINDLIBS) $(GETHOSTNAME_LIB) $(LIB_EACCESS)
+LDADD = ./libfindtools.a ../lib/libfind.a ../gl/lib/libgnulib.a $(LIBCAP) $(LIBINTL) $(LIB_CLOCK_GETTIME) $(LIB_EACCESS) $(LIB_SELINUX) $(LIB_CLOSE) $(MODF_LIBM) $(FINDLIBS) $(GETHOSTNAME_LIB) $(LIB_EACCESS)
# gnulib advises we link against <first> because we use <second>:
# $(GETHOSTNAME_LIB) uname
# $(LIB_CLOCK_GETTIME) (some inditrect dependency)
--
1.9.3
