* Reworked by David Douthitt <n9ubh@callsign.net> and
* Matt Kraai <kraai@alumni.carnegiemellon.edu>.
*
- * Licensed under the GPL version 2, see the file LICENSE in this tarball.
+ * Licensed under GPLv2, see file LICENSE in this source tree.
*/
/* findutils-4.1.20:
* diff -u /tmp/std_find /tmp/bb_find && echo Identical
*/
+//config:config FIND
+//config: bool "find"
+//config: default y
+//config: help
+//config: find is used to search your system to find specified files.
+//config:
+//config:config FEATURE_FIND_PRINT0
+//config: bool "Enable -print0: NUL-terminated output"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Causes output names to be separated by a NUL character
+//config: rather than a newline. This allows names that contain
+//config: newlines and other whitespace to be more easily
+//config: interpreted by other programs.
+//config:
+//config:config FEATURE_FIND_MTIME
+//config: bool "Enable -mtime: modified time matching"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Allow searching based on the modification time of
+//config: files, in days.
+//config:
+//config:config FEATURE_FIND_MMIN
+//config: bool "Enable -mmin: modified time matching by minutes"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Allow searching based on the modification time of
+//config: files, in minutes.
+//config:
+//config:config FEATURE_FIND_PERM
+//config: bool "Enable -perm: permissions matching"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Enable searching based on file permissions.
+//config:
+//config:config FEATURE_FIND_TYPE
+//config: bool "Enable -type: file type matching (file/dir/link/...)"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Enable searching based on file type (file,
+//config: directory, socket, device, etc.).
+//config:
+//config:config FEATURE_FIND_XDEV
+//config: bool "Enable -xdev: 'stay in filesystem'"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: This option allows find to restrict searches to a single filesystem.
+//config:
+//config:config FEATURE_FIND_MAXDEPTH
+//config: bool "Enable -mindepth N and -maxdepth N"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: This option enables -mindepth N and -maxdepth N option.
+//config:
+//config:config FEATURE_FIND_NEWER
+//config: bool "Enable -newer: compare file modification times"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Support the 'find -newer' option for finding any files which have
+//config: modification time that is more recent than the specified FILE.
+//config:
+//config:config FEATURE_FIND_INUM
+//config: bool "Enable -inum: inode number matching"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Support the 'find -inum' option for searching by inode number.
+//config:
+//config:config FEATURE_FIND_EXEC
+//config: bool "Enable -exec: execute commands"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Support the 'find -exec' option for executing commands based upon
+//config: the files matched.
+//config:
+//config:config FEATURE_FIND_USER
+//config: bool "Enable -user: username/uid matching"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Support the 'find -user' option for searching by username or uid.
+//config:
+//config:config FEATURE_FIND_GROUP
+//config: bool "Enable -group: group/gid matching"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Support the 'find -group' option for searching by group name or gid.
+//config:
+//config:config FEATURE_FIND_NOT
+//config: bool "Enable the 'not' (!) operator"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Support the '!' operator to invert the test results.
+//config: If 'Enable full-blown desktop' is enabled, then will also support
+//config: the non-POSIX notation '-not'.
+//config:
+//config:config FEATURE_FIND_DEPTH
+//config: bool "Enable -depth"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Process each directory's contents before the directory itself.
+//config:
+//config:config FEATURE_FIND_PAREN
+//config: bool "Enable parens in options"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Enable usage of parens '(' to specify logical order of arguments.
+//config:
+//config:config FEATURE_FIND_SIZE
+//config: bool "Enable -size: file size matching"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: Support the 'find -size' option for searching by file size.
+//config:
+//config:config FEATURE_FIND_PRUNE
+//config: bool "Enable -prune: exclude subdirectories"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: If the file is a directory, dont descend into it. Useful for
+//config: exclusion .svn and CVS directories.
+//config:
+//config:config FEATURE_FIND_DELETE
+//config: bool "Enable -delete: delete files/dirs"
+//config: default y
+//config: depends on FIND && FEATURE_FIND_DEPTH
+//config: help
+//config: Support the 'find -delete' option for deleting files and directories.
+//config: WARNING: This option can do much harm if used wrong. Busybox will not
+//config: try to protect the user from doing stupid things. Use with care.
+//config:
+//config:config FEATURE_FIND_PATH
+//config: bool "Enable -path: match pathname with shell pattern"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: The -path option matches whole pathname instead of just filename.
+//config:
+//config:config FEATURE_FIND_REGEX
+//config: bool "Enable -regex: match pathname with regex"
+//config: default y
+//config: depends on FIND
+//config: help
+//config: The -regex option matches whole pathname against regular expression.
+//config:
+//config:config FEATURE_FIND_CONTEXT
+//config: bool "Enable -context: security context matching"
+//config: default n
+//config: depends on FIND && SELINUX
+//config: help
+//config: Support the 'find -context' option for matching security context.
+//config:
+//config:config FEATURE_FIND_LINKS
+//config: bool "Enable -links: link count matching"
+//config: default y
+//config: depends on FIND
+//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: "\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: "\n -ipath PATTERN Case insensitive -path"
+//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
-#include "xregex.h"
+# include "xregex.h"
+#endif
+/* GNUism: */
+#ifndef FNM_CASEFOLD
+# define FNM_CASEFOLD 0
#endif
-/* This is a NOEXEC applet. Be very careful! */
+#define dbg(...) ((void)0)
+/* #define dbg(...) bb_error_msg(__VA_ARGS__) */
+/* This is a NOEXEC applet. Be very careful! */
-IF_FEATURE_FIND_XDEV(static dev_t *xdev_dev;)
-IF_FEATURE_FIND_XDEV(static int xdev_count;)
-typedef int (*action_fp)(const char *fileName, struct stat *statbuf, void *) FAST_FUNC;
+typedef int (*action_fp)(const char *fileName, const struct stat *statbuf, void *) FAST_FUNC;
typedef struct {
action_fp f;
#define ACTS(name, ...) typedef struct { action a; __VA_ARGS__ } action_##name;
#define ACTF(name) \
static int FAST_FUNC func_##name(const char *fileName UNUSED_PARAM, \
- struct stat *statbuf UNUSED_PARAM, \
+ const struct stat *statbuf UNUSED_PARAM, \
action_##name* ap UNUSED_PARAM)
ACTS(print)
ACTS(name, const char *pattern; bool iname;)
-IF_FEATURE_FIND_PATH( ACTS(path, const char *pattern;))
+IF_FEATURE_FIND_PATH( ACTS(path, const char *pattern; bool ipath;))
IF_FEATURE_FIND_REGEX( ACTS(regex, regex_t compiled_pattern;))
IF_FEATURE_FIND_PRINT0( ACTS(print0))
IF_FEATURE_FIND_TYPE( ACTS(type, int type_mask;))
IF_FEATURE_FIND_DELETE( ACTS(delete))
IF_FEATURE_FIND_EXEC( ACTS(exec, char **exec_argv; unsigned *subst_count; int exec_argc;))
IF_FEATURE_FIND_GROUP( ACTS(group, gid_t gid;))
+IF_FEATURE_FIND_LINKS( ACTS(links, char links_char; int links_count;))
-static action ***actions;
-static bool need_print = 1;
-static int recurse_flags = ACTION_RECURSE;
+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;
+ smallint need_print;
+ smallint xdev_on;
+ recurse_flags_t recurse_flags;
+} FIX_ALIASING;
+#define G (*(struct globals*)&bb_common_bufsiz1)
+#define INIT_G() do { \
+ struct G_sizecheck { \
+ char G_sizecheck[sizeof(G) > COMMON_BUFSIZE ? -1 : 1]; \
+ }; \
+ /* we have to zero it out because of NOEXEC */ \
+ 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)
#if ENABLE_FEATURE_FIND_EXEC
static unsigned count_subst(const char *str)
* bit 0=1: matched successfully (TRUE)
*/
-static int exec_actions(action ***appp, const char *fileName, struct stat *statbuf)
+static int exec_actions(action ***appp, const char *fileName, const struct stat *statbuf)
{
int cur_group;
int cur_action;
* On return, bit is restored. */
cur_group = -1;
- while ((app = appp[++cur_group])) {
+ while ((app = appp[++cur_group]) != NULL) {
rc &= ~TRUE; /* 'success' so far, clear TRUE bit */
cur_action = -1;
while (1) {
#if ENABLE_FEATURE_FIND_NOT
if (ap->invert) rc ^= TRUE;
#endif
+ dbg("grp %d action %d rc:0x%x", cur_group, cur_action, rc);
if (rc & TRUE) /* current group failed, try next */
break;
}
}
+ dbg("returning:0x%x", rc ^ TRUE);
return rc ^ TRUE; /* restore TRUE bit */
}
+#if !FNM_CASEFOLD
+static char *strcpy_upcase(char *dst, const char *src)
+{
+ char *d = dst;
+ while (1) {
+ unsigned char ch = *src++;
+ if (ch >= 'a' && ch <= 'z')
+ ch -= ('a' - 'A');
+ *d++ = ch;
+ if (ch == '\0')
+ break;
+ }
+ return dst;
+}
+#endif
+
ACTF(name)
{
const char *tmp = bb_basename(fileName);
- if (tmp != fileName && !*tmp) { /* "foo/bar/". Oh no... go back to 'b' */
+ if (tmp != fileName && *tmp == '\0') {
+ /* "foo/bar/". Oh no... go back to 'b' */
tmp--;
while (tmp != fileName && *--tmp != '/')
continue;
if (*tmp == '/')
tmp++;
}
- return fnmatch(ap->pattern, tmp, FNM_PERIOD | (ap->iname ? FNM_CASEFOLD : 0)) == 0;
+ /* Was using FNM_PERIOD flag too,
+ * but somewhere between 4.1.20 and 4.4.0 GNU find stopped using it.
+ * find -name '*foo' should match .foo too:
+ */
+#if FNM_CASEFOLD
+ return fnmatch(ap->pattern, tmp, (ap->iname ? FNM_CASEFOLD : 0)) == 0;
+#else
+ if (ap->iname)
+ tmp = strcpy_upcase(alloca(strlen(tmp) + 1), tmp);
+ return fnmatch(ap->pattern, tmp, 0) == 0;
+#endif
}
#if ENABLE_FEATURE_FIND_PATH
ACTF(path)
{
+# if FNM_CASEFOLD
+ return fnmatch(ap->pattern, fileName, (ap->ipath ? FNM_CASEFOLD : 0)) == 0;
+# else
+ if (ap->ipath)
+ fileName = strcpy_upcase(alloca(strlen(fileName) + 1), fileName);
return fnmatch(ap->pattern, fileName, 0) == 0;
+# endif
}
#endif
#if ENABLE_FEATURE_FIND_REGEX
security_context_t con;
int rc;
- if (recurse_flags & ACTION_FOLLOWLINKS) {
+ if (G.recurse_flags & ACTION_FOLLOWLINKS) {
rc = getfilecon(fileName, &con);
} else {
rc = lgetfilecon(fileName, &con);
return rc == 0;
}
#endif
-
+#if ENABLE_FEATURE_FIND_LINKS
+ACTF(links)
+{
+ switch(ap->links_char) {
+ case '-' : return (statbuf->st_nlink < ap->links_count);
+ case '+' : return (statbuf->st_nlink > ap->links_count);
+ default: return (statbuf->st_nlink == ap->links_count);
+ }
+}
+#endif
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 i;
-#if ENABLE_FEATURE_FIND_MAXDEPTH
-#define minmaxdepth ((int*)userData)
+ int r;
- if (depth < minmaxdepth[0]) return TRUE;
- if (depth > minmaxdepth[1]) return SKIP;
-#undef minmaxdepth
+#if ENABLE_FEATURE_FIND_MAXDEPTH
+ if (depth < G.minmaxdepth[0])
+ return TRUE; /* skip this, continue recursing */
+ if (depth > G.minmaxdepth[1])
+ return SKIP; /* stop recursing */
#endif
+ r = exec_actions(G.actions, fileName, statbuf);
+ /* Had no explicit -print[0] or -exec? then print */
+ if ((r & TRUE) && G.need_print)
+ puts(fileName);
+
+#if ENABLE_FEATURE_FIND_MAXDEPTH
+ if (S_ISDIR(statbuf->st_mode)) {
+ if (depth == G.minmaxdepth[1])
+ return SKIP;
+ }
+#endif
#if ENABLE_FEATURE_FIND_XDEV
- if (S_ISDIR(statbuf->st_mode) && xdev_count) {
- for (i = 0; i < xdev_count; i++) {
- if (xdev_dev[i] == statbuf->st_dev)
- break;
- }
- if (i == xdev_count)
+ /* -xdev stops on mountpoints, but AFTER mountpoit itself
+ * is processed as usual */
+ if (S_ISDIR(statbuf->st_mode)) {
+ if (G.xdev_count) {
+ int i;
+ for (i = 0; i < G.xdev_count; i++) {
+ if (G.xdev_dev[i] == statbuf->st_dev)
+ goto found;
+ }
return SKIP;
+ found: ;
+ }
}
#endif
- i = exec_actions(actions, fileName, statbuf);
- /* Had no explicit -print[0] or -exec? then print */
- if ((i & TRUE) && need_print)
- puts(fileName);
+
/* Cannot return 0: our caller, recursive_action(),
* will perror() and skip dirs (if called on dir) */
- return (i & SKIP) ? SKIP : TRUE;
+ return (r & SKIP) ? SKIP : TRUE;
}
else if (*type == 's')
mask = S_IFSOCK;
- if (mask == 0 || *(type + 1) != '\0')
+ if (mask == 0 || type[1] != '\0')
bb_error_msg_and_die(bb_msg_invalid_arg, type, "-type");
return mask;
#if ENABLE_FEATURE_FIND_PERM \
|| ENABLE_FEATURE_FIND_MTIME || ENABLE_FEATURE_FIND_MMIN \
- || ENABLE_FEATURE_FIND_SIZE
+ || ENABLE_FEATURE_FIND_SIZE || ENABLE_FEATURE_FIND_LINKS
static const char* plus_minus_num(const char* str)
{
if (*str == '-' || *str == '+')
static action*** parse_params(char **argv)
{
enum {
- PARM_a ,
- PARM_o ,
- IF_FEATURE_FIND_NOT( PARM_char_not ,)
+ 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 ENABLE_DESKTOP
- PARM_and ,
- PARM_or ,
+ PARM_and ,
+ PARM_or ,
IF_FEATURE_FIND_NOT( PARM_not ,)
#endif
- PARM_print ,
+ PARM_print ,
IF_FEATURE_FIND_PRINT0( PARM_print0 ,)
- IF_FEATURE_FIND_DEPTH( PARM_depth ,)
IF_FEATURE_FIND_PRUNE( PARM_prune ,)
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 */
- PARM_name ,
- PARM_iname ,
+ /* All options/actions starting from here require argument */
+ PARM_name ,
+ PARM_iname ,
IF_FEATURE_FIND_PATH( PARM_path ,)
+#if ENABLE_DESKTOP
+ /* -wholename is a synonym for -path */
+ /* We support it because Linux kernel's "make tags" uses it */
+ IF_FEATURE_FIND_PATH( PARM_wholename ,)
+#endif
+ IF_FEATURE_FIND_PATH( PARM_ipath ,)
IF_FEATURE_FIND_REGEX( PARM_regex ,)
IF_FEATURE_FIND_TYPE( PARM_type ,)
IF_FEATURE_FIND_PERM( PARM_perm ,)
IF_FEATURE_FIND_GROUP( PARM_group ,)
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_DEPTH( "-depth\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 ENABLE_DESKTOP
+ IF_FEATURE_FIND_PATH( "-wholename\0")
+#endif
+ IF_FEATURE_FIND_PATH( "-ipath\0" )
IF_FEATURE_FIND_REGEX( "-regex\0" )
IF_FEATURE_FIND_TYPE( "-type\0" )
IF_FEATURE_FIND_PERM( "-perm\0" )
IF_FEATURE_FIND_GROUP( "-group\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;
unsigned cur_group = 0;
/* This is the only place in busybox where we use nested function.
* So far more standard alternatives were bigger. */
- /* Suppress a warning "func without a prototype" */
+ /* Auto decl suppresses "func without a prototype" warning: */
auto action* alloc_action(int sizeof_struct, action_fp f);
action* alloc_action(int sizeof_struct, action_fp f)
{
action *ap;
appp[cur_group] = xrealloc(appp[cur_group], (cur_action+2) * sizeof(*appp));
- appp[cur_group][cur_action++] = ap = xmalloc(sizeof_struct);
+ appp[cur_group][cur_action++] = ap = xzalloc(sizeof_struct);
appp[cur_group][cur_action] = NULL;
ap->f = f;
IF_FEATURE_FIND_NOT( ap->invert = invert_flag; )
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];
+ dbg("arg:'%s' arg1:'%s' parm:%d PARM_type:%d", arg, arg1, parm, PARM_type);
+
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 (parm == OPT_FOLLOW) {
+ dbg("follow enabled: %d", __LINE__);
+ G.recurse_flags |= ACTION_FOLLOWLINKS | ACTION_DANGLING_OK;
+ }
+#if ENABLE_FEATURE_FIND_XDEV
+ else if (parm == OPT_XDEV) {
+ dbg("%d", __LINE__);
+ G.xdev_on = 1;
+ }
+#endif
+#if ENABLE_FEATURE_FIND_MAXDEPTH
+ else if (parm == OPT_MINDEPTH || parm == OPT_MINDEPTH + 1) {
+ dbg("%d", __LINE__);
+ G.minmaxdepth[parm - OPT_MINDEPTH] = xatoi_positive(arg1);
+ }
+#endif
+#if ENABLE_FEATURE_FIND_DEPTH
+ else if (parm == OPT_DEPTH) {
+ dbg("%d", __LINE__);
+ 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)) {
+ dbg("%d", __LINE__);
/* no further special handling required */
}
else if (parm == PARM_o IF_DESKTOP(|| parm == PARM_or)) {
+ dbg("%d", __LINE__);
/* start new OR group */
cur_group++;
appp = xrealloc(appp, (cur_group+2) * sizeof(*appp));
else if (parm == PARM_char_not IF_DESKTOP(|| parm == PARM_not)) {
/* also handles "find ! ! -name 'foo*'" */
invert_flag ^= 1;
+ dbg("invert_flag:%d", invert_flag);
}
#endif
-
- /* --- Tests and actions --- */
+ /* Actions */
else if (parm == PARM_print) {
- need_print = 0;
- /* GNU find ignores '!' here: "find ! -print" */
- IF_FEATURE_FIND_NOT( invert_flag = 0; )
+ dbg("%d", __LINE__);
+ G.need_print = 0;
(void) ALLOC_ACTION(print);
}
#if ENABLE_FEATURE_FIND_PRINT0
else if (parm == PARM_print0) {
- need_print = 0;
- IF_FEATURE_FIND_NOT( invert_flag = 0; )
+ dbg("%d", __LINE__);
+ G.need_print = 0;
(void) ALLOC_ACTION(print0);
}
#endif
-#if ENABLE_FEATURE_FIND_DEPTH
- else if (parm == PARM_depth) {
- recurse_flags |= ACTION_DEPTHFIRST;
- }
-#endif
#if ENABLE_FEATURE_FIND_PRUNE
else if (parm == PARM_prune) {
- IF_FEATURE_FIND_NOT( invert_flag = 0; )
+ dbg("%d", __LINE__);
(void) ALLOC_ACTION(prune);
}
#endif
#if ENABLE_FEATURE_FIND_DELETE
else if (parm == PARM_delete) {
- need_print = 0;
- recurse_flags |= ACTION_DEPTHFIRST;
+ dbg("%d", __LINE__);
+ G.need_print = 0;
+ G.recurse_flags |= ACTION_DEPTHFIRST;
(void) ALLOC_ACTION(delete);
}
#endif
else if (parm == PARM_exec) {
int i;
action_exec *ap;
- need_print = 0;
- IF_FEATURE_FIND_NOT( invert_flag = 0; )
+ dbg("%d", __LINE__);
+ G.need_print = 0;
ap = ALLOC_ACTION(exec);
ap->exec_argv = ++argv; /* first arg after -exec */
- ap->exec_argc = 0;
+ /*ap->exec_argc = 0; - ALLOC_ACTION did it */
while (1) {
- if (!*argv) /* did not see ';' until end */
- bb_error_msg_and_die("-exec CMD must end by ';'");
- if (LONE_CHAR(argv[0], ';'))
+ if (!*argv) /* did not see ';' or '+' until end */
+ bb_error_msg_and_die(bb_msg_requires_arg, "-exec");
+ // find -exec echo Foo ">{}<" ";"
+ // executes "echo Foo >FILENAME<",
+ // find -exec echo Foo ">{}<" "+"
+ // executes "echo Foo FILENAME1 FILENAME2 FILENAME3...".
+ // TODO (so far we treat "+" just like ";")
+ if ((argv[0][0] == ';' || argv[0][0] == '+')
+ && argv[0][1] == '\0'
+ ) {
break;
+ }
argv++;
ap->exec_argc++;
}
char **endarg;
unsigned nested = 1;
+ dbg("%d", __LINE__);
endarg = argv;
while (1) {
if (!*++endarg)
#endif
else if (parm == PARM_name || parm == PARM_iname) {
action_name *ap;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(name);
ap->pattern = arg1;
ap->iname = (parm == PARM_iname);
}
#if ENABLE_FEATURE_FIND_PATH
- else if (parm == PARM_path) {
+ else if (parm == PARM_path IF_DESKTOP(|| parm == PARM_wholename) || parm == PARM_ipath) {
action_path *ap;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(path);
ap->pattern = arg1;
+ ap->ipath = (parm == PARM_ipath);
}
#endif
#if ENABLE_FEATURE_FIND_REGEX
else if (parm == PARM_regex) {
action_regex *ap;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(regex);
xregcomp(&ap->compiled_pattern, arg1, 0 /*cflags*/);
}
action_type *ap;
ap = ALLOC_ACTION(type);
ap->type_mask = find_type(arg1);
+ dbg("created:type mask:%x", ap->type_mask);
}
#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;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(perm);
ap->perm_char = arg1[0];
arg1 = plus_minus_num(arg1);
- ap->perm_mask = 0;
+ /*ap->perm_mask = 0; - ALLOC_ACTION did it */
if (!bb_parse_mode(arg1, &ap->perm_mask))
- bb_error_msg_and_die("invalid mode: %s", arg1);
+ bb_error_msg_and_die("invalid mode '%s'", arg1);
}
#endif
#if ENABLE_FEATURE_FIND_MTIME
else if (parm == PARM_mtime) {
action_mtime *ap;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(mtime);
ap->mtime_char = arg1[0];
ap->mtime_days = xatoul(plus_minus_num(arg1));
#if ENABLE_FEATURE_FIND_MMIN
else if (parm == PARM_mmin) {
action_mmin *ap;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(mmin);
ap->mmin_char = arg1[0];
ap->mmin_mins = xatoul(plus_minus_num(arg1));
else if (parm == PARM_newer) {
struct stat stat_newer;
action_newer *ap;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(newer);
xstat(arg1, &stat_newer);
ap->newer_mtime = stat_newer.st_mtime;
#if ENABLE_FEATURE_FIND_INUM
else if (parm == PARM_inum) {
action_inum *ap;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(inum);
ap->inode_num = xatoul(arg1);
}
#if ENABLE_FEATURE_FIND_USER
else if (parm == PARM_user) {
action_user *ap;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(user);
ap->uid = bb_strtou(arg1, NULL, 10);
if (errno)
#if ENABLE_FEATURE_FIND_GROUP
else if (parm == PARM_group) {
action_group *ap;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(group);
ap->gid = bb_strtou(arg1, NULL, 10);
if (errno)
{ "", 0 }
};
action_size *ap;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(size);
ap->size_char = arg1[0];
ap->size = XATOU_SFX(plus_minus_num(arg1), find_suffixes);
#if ENABLE_FEATURE_FIND_CONTEXT
else if (parm == PARM_context) {
action_context *ap;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(context);
- ap->context = NULL;
+ /*ap->context = NULL; - ALLOC_ACTION did it */
/* SELinux headers erroneously declare non-const parameter */
if (selinux_raw_to_trans_context((char*)arg1, &ap->context))
bb_simple_perror_msg(arg1);
}
+#endif
+#if ENABLE_FEATURE_FIND_LINKS
+ else if (parm == PARM_links) {
+ action_links *ap;
+ dbg("%d", __LINE__);
+ ap = ALLOC_ACTION(links);
+ ap->links_char = arg1[0];
+ ap->links_count = xatoul(plus_minus_num(arg1));
+ }
#endif
else {
bb_error_msg("unrecognized: %s", arg);
}
argv++;
}
+ dbg("exiting %s", __func__);
return appp;
#undef ALLOC_ACTION
}
-
int find_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int find_main(int argc, char **argv)
+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")
- ;
- enum {
- OPT_FOLLOW,
-IF_FEATURE_FIND_XDEV( OPT_XDEV ,)
-IF_FEATURE_FIND_MAXDEPTH(OPT_MINDEPTH,)
- };
-
- 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
- for (firstopt = 1; firstopt < argc; firstopt++) {
+ INIT_G();
+
+ 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, -maxdepth
- */
- /* Process options, and replace then with -a */
- /* (-a will be ignored by recursive parser later) */
- argp = &argv[firstopt];
- while ((arg = argp[0])) {
- int opt = index_in_strings(options, arg);
- if (opt == OPT_FOLLOW) {
- recurse_flags |= ACTION_FOLLOWLINKS;
- 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 (!xdev_count) {
- xdev_count = firstopt - 1;
- xdev_dev = xmalloc(xdev_count * sizeof(dev_t));
- for (i = 1; i < firstopt; i++) {
- /* not xstat(): shouldn't bomb out on
- * "find not_exist exist -xdev" */
- if (stat(argv[i], &stbuf))
- stbuf.st_dev = -1L;
- xdev_dev[i-1] = stbuf.st_dev;
- }
- }
- 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_u(argp[1]);
- argp[0] = (char*)"-a";
- argp[1] = (char*)"-a";
- argp++;
+ 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
- actions = parse_params(&argv[firstopt]);
-
- for (i = 1; i < firstopt; i++) {
+ for (i = 0; argv[i]; i++) {
if (!recursive_action(argv[i],
- recurse_flags, /* flags */
+ 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