* diff -u /tmp/std_find /tmp/bb_find && echo Identical
*/
-//applet:IF_FIND(APPLET_NOEXEC(find, find, BB_DIR_USR_BIN, BB_SUID_DROP, find))
-
-//kbuild:lib-$(CONFIG_FIND) += find.o
-
//config:config FIND
//config: bool "find"
//config: default y
//config: help
//config: Support the 'find -links' option for matching number of links.
+//applet:IF_FIND(APPLET_NOEXEC(find, find, BB_DIR_USR_BIN, BB_SUID_DROP, find))
+
+//kbuild:lib-$(CONFIG_FIND) += find.o
+
+//usage:#define find_trivial_usage
+//usage: "[PATH]... [OPTIONS] [ACTIONS]"
+//usage:#define find_full_usage "\n\n"
+//usage: "Search for files and perform actions on them.\n"
+//usage: "First failed action stops processing of current file.\n"
+//usage: "Defaults: PATH is current directory, action is '-print'\n"
+//usage: "\nOptions:"
+//usage: "\n -follow Follow symlinks"
+//usage: IF_FEATURE_FIND_XDEV(
+//usage: "\n -xdev Don't descend directories on other filesystems"
+//usage: )
+//usage: IF_FEATURE_FIND_MAXDEPTH(
+//usage: "\n -maxdepth N Descend at most N levels. -maxdepth 0 applies"
+//usage: "\n actions to command line arguments only"
+//usage: "\n -mindepth N Don't act on first N levels"
+//usage: )
+//usage: IF_FEATURE_FIND_DEPTH(
+//usage: "\n -depth Act on directory *after* traversing it"
+//usage: )
+//usage: "\n"
+//usage: "\nActions:"
+//usage: IF_FEATURE_FIND_PAREN(
+//usage: "\n ( ACTIONS ) Group actions for -o / -a"
+//usage: )
+//usage: IF_FEATURE_FIND_NOT(
+//usage: "\n ! ACT Invert ACT's success/failure"
+//usage: )
+//usage: "\n ACT1 [-a] ACT2 If ACT1 fails, stop, else do ACT2"
+//usage: "\n ACT1 -o ACT2 If ACT1 succeeds, stop, else do ACT2"
+//usage: "\n Note: -a has higher priority than -o"
+//usage: "\n -name PATTERN Match file name (w/o directory name) to PATTERN"
+//usage: "\n -iname PATTERN Case insensitive -name"
+//usage: IF_FEATURE_FIND_PATH(
+//usage: "\n -path PATTERN Match path to PATTERN"
+//usage: )
+//usage: IF_FEATURE_FIND_REGEX(
+//usage: "\n -regex PATTERN Match path to regex PATTERN"
+//usage: )
+//usage: IF_FEATURE_FIND_TYPE(
+//usage: "\n -type X File type is X (one of: f,d,l,b,c,...)"
+//usage: )
+//usage: IF_FEATURE_FIND_PERM(
+//usage: "\n -perm MASK At least one mask bit (+MASK), all bits (-MASK),"
+//usage: "\n or exactly MASK bits are set in file's mode"
+//usage: )
+//usage: IF_FEATURE_FIND_MTIME(
+//usage: "\n -mtime DAYS mtime is greater than (+N), less than (-N),"
+//usage: "\n or exactly N days in the past"
+//usage: )
+//usage: IF_FEATURE_FIND_MMIN(
+//usage: "\n -mmin MINS mtime is greater than (+N), less than (-N),"
+//usage: "\n or exactly N minutes in the past"
+//usage: )
+//usage: IF_FEATURE_FIND_NEWER(
+//usage: "\n -newer FILE mtime is more recent than FILE's"
+//usage: )
+//usage: IF_FEATURE_FIND_INUM(
+//usage: "\n -inum N File has inode number N"
+//usage: )
+//usage: IF_FEATURE_FIND_USER(
+//usage: "\n -user NAME/ID File is owned by given user"
+//usage: )
+//usage: IF_FEATURE_FIND_GROUP(
+//usage: "\n -group NAME/ID File is owned by given group"
+//usage: )
+//usage: IF_FEATURE_FIND_SIZE(
+//usage: "\n -size N[bck] File size is N (c:bytes,k:kbytes,b:512 bytes(def.))"
+//usage: "\n +/-N: file size is bigger/smaller than N"
+//usage: )
+//usage: IF_FEATURE_FIND_LINKS(
+//usage: "\n -links N Number of links is greater than (+N), less than (-N),"
+//usage: "\n or exactly N"
+//usage: )
+//usage: IF_FEATURE_FIND_CONTEXT(
+//usage: "\n -context CTX File has specified security context"
+//usage: )
+//usage: IF_FEATURE_FIND_PRUNE(
+//usage: "\n -prune If current file is directory, don't descend into it"
+//usage: )
+//usage: "\nIf none of the following actions is specified, -print is assumed"
+//usage: "\n -print Print file name"
+//usage: IF_FEATURE_FIND_PRINT0(
+//usage: "\n -print0 Print file name, NUL terminated"
+//usage: )
+//usage: IF_FEATURE_FIND_EXEC(
+//usage: "\n -exec CMD ARG ; Run CMD with all instances of {} replaced by"
+//usage: "\n file name. Fails if CMD exits with nonzero"
+//usage: )
+//usage: IF_FEATURE_FIND_DELETE(
+//usage: "\n -delete Delete current file/directory. Turns on -depth option"
+//usage: )
+//usage:
+//usage:#define find_example_usage
+//usage: "$ find / -name passwd\n"
+//usage: "/etc/passwd\n"
+
#include <fnmatch.h>
#include "libbb.h"
#if ENABLE_FEATURE_FIND_REGEX
struct globals {
IF_FEATURE_FIND_XDEV(dev_t *xdev_dev;)
IF_FEATURE_FIND_XDEV(int xdev_count;)
+#if ENABLE_FEATURE_FIND_MAXDEPTH
+ int minmaxdepth[2];
+#endif
action ***actions;
- bool need_print;
+ smallint need_print;
+ smallint xdev_on;
recurse_flags_t recurse_flags;
} FIX_ALIASING;
#define G (*(struct globals*)&bb_common_bufsiz1)
char G_sizecheck[sizeof(G) > COMMON_BUFSIZE ? -1 : 1]; \
}; \
/* we have to zero it out because of NOEXEC */ \
- memset(&G, 0, offsetof(struct globals, need_print)); \
+ memset(&G, 0, sizeof(G)); \
+ IF_FEATURE_FIND_MAXDEPTH(G.minmaxdepth[1] = INT_MAX;) \
G.need_print = 1; \
G.recurse_flags = ACTION_RECURSE; \
} while (0)
static int FAST_FUNC fileAction(const char *fileName,
struct stat *statbuf,
- void *userData IF_NOT_FEATURE_FIND_MAXDEPTH(UNUSED_PARAM),
+ void *userData UNUSED_PARAM,
int depth IF_NOT_FEATURE_FIND_MAXDEPTH(UNUSED_PARAM))
{
int r;
-#if ENABLE_FEATURE_FIND_MAXDEPTH
-#define minmaxdepth ((int*)userData)
- if (depth < minmaxdepth[0])
+#if ENABLE_FEATURE_FIND_MAXDEPTH
+ if (depth < G.minmaxdepth[0])
return TRUE; /* skip this, continue recursing */
- if (depth > minmaxdepth[1])
+ if (depth > G.minmaxdepth[1])
return SKIP; /* stop recursing */
#endif
#if ENABLE_FEATURE_FIND_MAXDEPTH
if (S_ISDIR(statbuf->st_mode)) {
- if (depth == minmaxdepth[1])
+ if (depth == G.minmaxdepth[1])
return SKIP;
}
#endif
/* Cannot return 0: our caller, recursive_action(),
* will perror() and skip dirs (if called on dir) */
return (r & SKIP) ? SKIP : TRUE;
-#undef minmaxdepth
}
static action*** parse_params(char **argv)
{
enum {
+ OPT_FOLLOW ,
+ IF_FEATURE_FIND_XDEV( OPT_XDEV ,)
+ IF_FEATURE_FIND_DEPTH( OPT_DEPTH ,)
PARM_a ,
PARM_o ,
IF_FEATURE_FIND_NOT( PARM_char_not ,)
IF_FEATURE_FIND_DELETE( PARM_delete ,)
IF_FEATURE_FIND_EXEC( PARM_exec ,)
IF_FEATURE_FIND_PAREN( PARM_char_brace,)
- /* All options starting from here require argument */
+ /* All options/actions starting from here require argument */
PARM_name ,
PARM_iname ,
IF_FEATURE_FIND_PATH( PARM_path ,)
IF_FEATURE_FIND_SIZE( PARM_size ,)
IF_FEATURE_FIND_CONTEXT(PARM_context ,)
IF_FEATURE_FIND_LINKS( PARM_links ,)
+ IF_FEATURE_FIND_MAXDEPTH(OPT_MINDEPTH,OPT_MAXDEPTH,)
};
static const char params[] ALIGN1 =
- "-a\0"
- "-o\0"
+ "-follow\0"
+ IF_FEATURE_FIND_XDEV( "-xdev\0" )
+ IF_FEATURE_FIND_DEPTH( "-depth\0" )
+ "-a\0"
+ "-o\0"
IF_FEATURE_FIND_NOT( "!\0" )
#if ENABLE_DESKTOP
- "-and\0"
- "-or\0"
- IF_FEATURE_FIND_NOT( "-not\0" )
+ "-and\0"
+ "-or\0"
+ IF_FEATURE_FIND_NOT( "-not\0" )
#endif
- "-print\0"
+ "-print\0"
IF_FEATURE_FIND_PRINT0( "-print0\0" )
IF_FEATURE_FIND_PRUNE( "-prune\0" )
IF_FEATURE_FIND_DELETE( "-delete\0" )
IF_FEATURE_FIND_EXEC( "-exec\0" )
IF_FEATURE_FIND_PAREN( "(\0" )
- /* All options starting from here require argument */
+ /* All options/actions starting from here require argument */
"-name\0"
"-iname\0"
IF_FEATURE_FIND_PATH( "-path\0" )
IF_FEATURE_FIND_SIZE( "-size\0" )
IF_FEATURE_FIND_CONTEXT("-context\0")
IF_FEATURE_FIND_LINKS( "-links\0" )
+ IF_FEATURE_FIND_MAXDEPTH("-mindepth\0""-maxdepth\0")
;
action*** appp;
appp = xzalloc(2 * sizeof(appp[0])); /* appp[0],[1] == NULL */
-/* Actions have side effects and return a true or false value
- * We implement: -print, -print0, -exec
- *
- * The rest are tests.
- *
- * Tests and actions are grouped by operators
- * ( expr ) Force precedence
- * ! expr True if expr is false
- * -not expr Same as ! expr
- * expr1 [-a[nd]] expr2 And; expr2 is not evaluated if expr1 is false
- * expr1 -o[r] expr2 Or; expr2 is not evaluated if expr1 is true
- * expr1 , expr2 List; both expr1 and expr2 are always evaluated
- * We implement: (), -a, -o
- */
while (*argv) {
const char *arg = argv[0];
int parm = index_in_strings(params, arg);
const char *arg1 = argv[1];
if (parm >= PARM_name) {
- /* All options starting from -name require argument */
+ /* All options/actions starting from -name require argument */
if (!arg1)
bb_error_msg_and_die(bb_msg_requires_arg, arg);
argv++;
/* We can use big switch() here, but on i386
* it doesn't give smaller code. Other arches? */
- /* --- Operators --- */
- if (parm == PARM_a IF_DESKTOP(|| parm == PARM_and)) {
+/* Options always return true. They always take effect
+ * rather than being processed only when their place in the
+ * expression is reached.
+ */
+ /* Options */
+#if ENABLE_FEATURE_FIND_XDEV
+ if (parm == OPT_XDEV) {
+ G.xdev_on = 1;
+ }
+#endif
+#if ENABLE_FEATURE_FIND_MAXDEPTH
+ else if (parm == OPT_MINDEPTH || parm == OPT_MINDEPTH + 1) {
+ G.minmaxdepth[parm - OPT_MINDEPTH] = xatoi_positive(arg1);
+ }
+#endif
+#if ENABLE_FEATURE_FIND_DEPTH
+ else if (parm == OPT_DEPTH) {
+ G.recurse_flags |= ACTION_DEPTHFIRST;
+ }
+#endif
+/* Actions are grouped by operators
+ * ( expr ) Force precedence
+ * ! expr True if expr is false
+ * -not expr Same as ! expr
+ * expr1 [-a[nd]] expr2 And; expr2 is not evaluated if expr1 is false
+ * expr1 -o[r] expr2 Or; expr2 is not evaluated if expr1 is true
+ * expr1 , expr2 List; both expr1 and expr2 are always evaluated
+ * We implement: (), -a, -o
+ */
+ /* Operators */
+ else if (parm == PARM_a IF_DESKTOP(|| parm == PARM_and)) {
/* no further special handling required */
}
else if (parm == PARM_o IF_DESKTOP(|| parm == PARM_or)) {
invert_flag ^= 1;
}
#endif
-
- /* --- Tests and actions --- */
+ /* Actions */
else if (parm == PARM_print) {
G.need_print = 0;
- /* GNU find ignores '!' here: "find ! -print" */
- IF_FEATURE_FIND_NOT( invert_flag = 0; )
(void) ALLOC_ACTION(print);
}
#if ENABLE_FEATURE_FIND_PRINT0
else if (parm == PARM_print0) {
G.need_print = 0;
- IF_FEATURE_FIND_NOT( invert_flag = 0; )
(void) ALLOC_ACTION(print0);
}
#endif
#if ENABLE_FEATURE_FIND_PRUNE
else if (parm == PARM_prune) {
- IF_FEATURE_FIND_NOT( invert_flag = 0; )
(void) ALLOC_ACTION(prune);
}
#endif
int i;
action_exec *ap;
G.need_print = 0;
- IF_FEATURE_FIND_NOT( invert_flag = 0; )
ap = ALLOC_ACTION(exec);
ap->exec_argv = ++argv; /* first arg after -exec */
/*ap->exec_argc = 0; - ALLOC_ACTION did it */
}
#endif
#if ENABLE_FEATURE_FIND_PERM
-/* -perm mode File's permission bits are exactly mode (octal or symbolic).
+/* -perm BITS File's mode bits are exactly BITS (octal or symbolic).
* Symbolic modes use mode 0 as a point of departure.
- * -perm -mode All of the permission bits mode are set for the file.
- * -perm +mode Any of the permission bits mode are set for the file.
+ * -perm -BITS All of the BITS are set in file's mode.
+ * -perm +BITS At least one of the BITS is set in file's mode.
*/
else if (parm == PARM_perm) {
action_perm *ap;
#undef ALLOC_ACTION
}
-//usage:#define find_trivial_usage
-//usage: "[OPTIONS] [PATH]... [ACTION]..."
-//usage:#define find_full_usage "\n\n"
-//usage: "Search for files and perform actions on them.\n"
-//usage: "First failed action stops processing of current file.\n"
-//usage: "Defaults: PATH is current directory, action is '-print'\n"
-//usage: "\nOptions:"
-//usage: "\n -follow Follow symlinks"
-//usage: IF_FEATURE_FIND_XDEV(
-//usage: "\n -xdev Don't descend directories on other filesystems"
-//usage: )
-//usage: IF_FEATURE_FIND_MAXDEPTH(
-//usage: "\n -maxdepth N Descend at most N levels. -maxdepth 0 applies"
-//usage: "\n actions to command line arguments only"
-//usage: "\n -mindepth N Don't act on first N levels"
-//usage: )
-//usage: IF_FEATURE_FIND_DEPTH(
-//usage: "\n -depth Act on directory *after* traversing it"
-//usage: )
-//usage: "\n"
-//usage: IF_FEATURE_FIND_PAREN(
-//usage: "\n ( ACTIONS ) Group actions for -o / -a"
-//usage: )
-//usage: "\n ACT1 [-a] ACT2 If ACT1 fails, stop, else do ACT2"
-//usage: "\n ACT1 -o ACT2 If ACT1 succeeds, stop, else do ACT2"
-//usage: "\n Note: -a has higher priority than -o"
-//usage: "\nActions:"
-//usage: "\n -name PATTERN Match file name (w/o directory name) to PATTERN"
-//usage: "\n -iname PATTERN Case insensitive -name"
-//usage: IF_FEATURE_FIND_PATH(
-//usage: "\n -path PATTERN Match path to PATTERN"
-//usage: )
-//usage: IF_FEATURE_FIND_REGEX(
-//usage: "\n -regex PATTERN Match path to regex PATTERN"
-//usage: )
-//usage: IF_FEATURE_FIND_TYPE(
-//usage: "\n -type X File type is X (one of: f,d,l,b,c,...)"
-//usage: )
-//usage: IF_FEATURE_FIND_PERM(
-//usage: "\n -perm MASK At least one mask bit (+MASK), all bits (-MASK),"
-//usage: "\n or exactly MASK bits are set in mode bits"
-//usage: )
-//usage: IF_FEATURE_FIND_MTIME(
-//usage: "\n -mtime DAYS Modified time is greater than (+N), less than (-N),"
-//usage: "\n or exactly N days"
-//usage: )
-//usage: IF_FEATURE_FIND_MMIN(
-//usage: "\n -mmin MINS Modified time is greater than (+N), less than (-N),"
-//usage: "\n or exactly N minutes"
-//usage: )
-//usage: IF_FEATURE_FIND_NEWER(
-//usage: "\n -newer FILE Modified time is more recent than FILE's"
-//usage: )
-//usage: IF_FEATURE_FIND_INUM(
-//usage: "\n -inum N File has inode number N"
-//usage: )
-//usage: IF_FEATURE_FIND_USER(
-//usage: "\n -user NAME File is owned by user NAME (numeric user ID allowed)"
-//usage: )
-//usage: IF_FEATURE_FIND_GROUP(
-//usage: "\n -group NAME File belongs to group NAME (numeric group ID allowed)"
-//usage: )
-//usage: IF_FEATURE_FIND_SIZE(
-//usage: "\n -size N[bck] File size is N (c:bytes,k:kbytes,b:512 bytes(def.))"
-//usage: "\n +/-N: file size is bigger/smaller than N"
-//usage: )
-//usage: IF_FEATURE_FIND_LINKS(
-//usage: "\n -links N Number of links is greater than (+N), less than (-N),"
-//usage: "\n or exactly N"
-//usage: )
-//usage: IF_FEATURE_FIND_CONTEXT(
-//usage: "\n -context CTX File has specified security context"
-//usage: )
-//usage: IF_FEATURE_FIND_PRUNE(
-//usage: "\n -prune If current file is directory, don't descend into it"
-//usage: )
-//usage: "\n If none of the following actions is specified, -print is assumed"
-//usage: "\n -print Print file name"
-//usage: IF_FEATURE_FIND_PRINT0(
-//usage: "\n -print0 Print file name, NUL terminated"
-//usage: )
-//usage: IF_FEATURE_FIND_EXEC(
-//usage: "\n -exec CMD ARG ; Run CMD with all instances of {} replaced by"
-//usage: "\n file name. Fails if CMD exits with nonzero"
-//usage: )
-//usage: IF_FEATURE_FIND_DELETE(
-//usage: "\n -delete Delete current file/directory. Turns on -depth option"
-//usage: )
-//usage:
-//usage:#define find_example_usage
-//usage: "$ find / -name passwd\n"
-//usage: "/etc/passwd\n"
-
int find_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int find_main(int argc UNUSED_PARAM, char **argv)
{
- static const char options[] ALIGN1 =
- "-follow\0"
-IF_FEATURE_FIND_XDEV( "-xdev\0" )
-IF_FEATURE_FIND_MAXDEPTH("-mindepth\0""-maxdepth\0")
-IF_FEATURE_FIND_DEPTH( "-depth\0" )
- ;
- enum {
- OPT_FOLLOW,
-IF_FEATURE_FIND_XDEV( OPT_XDEV ,)
-IF_FEATURE_FIND_MAXDEPTH(OPT_MINDEPTH,)
-IF_FEATURE_FIND_DEPTH( OPT_DEPTH ,)
- };
-
- char *arg;
- char **argp;
int i, firstopt, status = EXIT_SUCCESS;
-#if ENABLE_FEATURE_FIND_MAXDEPTH
- int minmaxdepth[2] = { 0, INT_MAX };
-#else
-#define minmaxdepth NULL
-#endif
INIT_G();
- for (firstopt = 1; argv[firstopt]; firstopt++) {
+ argv++;
+ for (firstopt = 0; argv[firstopt]; firstopt++) {
if (argv[firstopt][0] == '-')
break;
if (ENABLE_FEATURE_FIND_NOT && LONE_CHAR(argv[firstopt], '!'))
break;
-#if ENABLE_FEATURE_FIND_PAREN
- if (LONE_CHAR(argv[firstopt], '('))
+ if (ENABLE_FEATURE_FIND_PAREN && LONE_CHAR(argv[firstopt], '('))
break;
-#endif
}
- if (firstopt == 1) {
- argv[0] = (char*)".";
- argv--;
+ if (firstopt == 0) {
+ *--argv = (char*)".";
firstopt++;
}
-/* All options always return true. They always take effect
- * rather than being processed only when their place in the
- * expression is reached.
- * We implement: -follow, -xdev, -mindepth, -maxdepth, -depth
- */
- /* Process options, and replace then with -a */
- /* (-a will be ignored by recursive parser later) */
- argp = &argv[firstopt];
- while ((arg = argp[0]) != NULL) {
- int opt = index_in_strings(options, arg);
- if (opt == OPT_FOLLOW) {
- G.recurse_flags |= ACTION_FOLLOWLINKS | ACTION_DANGLING_OK;
- argp[0] = (char*)"-a";
- }
+ G.actions = parse_params(&argv[firstopt]);
+ argv[firstopt] = NULL;
+
#if ENABLE_FEATURE_FIND_XDEV
- if (opt == OPT_XDEV) {
- struct stat stbuf;
- if (!G.xdev_count) {
- G.xdev_count = firstopt - 1;
- G.xdev_dev = xzalloc(G.xdev_count * sizeof(G.xdev_dev[0]));
- for (i = 1; i < firstopt; i++) {
- /* not xstat(): shouldn't bomb out on
- * "find not_exist exist -xdev" */
- if (stat(argv[i], &stbuf) == 0)
- G.xdev_dev[i-1] = stbuf.st_dev;
- /* else G.xdev_dev[i-1] stays 0 and
- * won't match any real device dev_t */
- }
- }
- argp[0] = (char*)"-a";
- }
-#endif
-#if ENABLE_FEATURE_FIND_MAXDEPTH
- if (opt == OPT_MINDEPTH || opt == OPT_MINDEPTH + 1) {
- if (!argp[1])
- bb_show_usage();
- minmaxdepth[opt - OPT_MINDEPTH] = xatoi_positive(argp[1]);
- argp[0] = (char*)"-a";
- argp++;
- argp[0] = (char*)"-a";
- }
-#endif
-#if ENABLE_FEATURE_FIND_DEPTH
- if (opt == OPT_DEPTH) {
- G.recurse_flags |= ACTION_DEPTHFIRST;
- argp[0] = (char*)"-a";
+ if (G.xdev_on) {
+ struct stat stbuf;
+
+ G.xdev_count = firstopt;
+ G.xdev_dev = xzalloc(G.xdev_count * sizeof(G.xdev_dev[0]));
+ for (i = 0; argv[i]; i++) {
+ /* not xstat(): shouldn't bomb out on
+ * "find not_exist exist -xdev" */
+ if (stat(argv[i], &stbuf) == 0)
+ G.xdev_dev[i] = stbuf.st_dev;
+ /* else G.xdev_dev[i] stays 0 and
+ * won't match any real device dev_t
+ */
}
-#endif
- argp++;
}
+#endif
- G.actions = parse_params(&argv[firstopt]);
-
- for (i = 1; i < firstopt; i++) {
+ for (i = 0; argv[i]; i++) {
if (!recursive_action(argv[i],
G.recurse_flags,/* flags */
fileAction, /* file action */
fileAction, /* dir action */
-#if ENABLE_FEATURE_FIND_MAXDEPTH
- minmaxdepth, /* user data */
-#else
NULL, /* user data */
-#endif
- 0)) /* depth */
+ 0) /* depth */
+ ) {
status = EXIT_FAILURE;
+ }
}
+
return status;
}
projects / oweals / busybox.git / blobdiff