* 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:
* (no output)
*/
-#include "busybox.h"
+/* Testing script
+ * ./busybox find "$@" | tee /tmp/bb_find
+ * echo ==================
+ * /path/to/gnu/find "$@" | tee /tmp/std_find
+ * echo ==================
+ * 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"
+#endif
+/* GNUism: */
+#ifndef FNM_CASEFOLD
+# define FNM_CASEFOLD 0
+#endif
-USE_FEATURE_FIND_XDEV(static dev_t *xdev_dev;)
-USE_FEATURE_FIND_XDEV(static int xdev_count;)
+#define dbg(...) ((void)0)
+/* #define dbg(...) bb_error_msg(__VA_ARGS__) */
-typedef int (*action_fp)(const char *fileName, struct stat *statbuf, void *);
+/* This is a NOEXEC applet. Be very careful! */
+
+
+typedef int (*action_fp)(const char *fileName, const struct stat *statbuf, void *) FAST_FUNC;
typedef struct {
action_fp f;
+#if ENABLE_FEATURE_FIND_NOT
+ bool invert;
+#endif
} action;
-#define ACTS(name, arg...) typedef struct { action a; arg; } action_##name;
-#define ACTF(name) static int func_##name(const char *fileName, struct stat *statbuf, action_##name* ap)
+
+#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, \
+ const struct stat *statbuf UNUSED_PARAM, \
+ action_##name* ap UNUSED_PARAM)
+
ACTS(print)
- ACTS(name, char *pattern;)
-USE_FEATURE_FIND_PRINT0(ACTS(print0))
-USE_FEATURE_FIND_TYPE( ACTS(type, int type_mask;))
-USE_FEATURE_FIND_PERM( ACTS(perm, char perm_char; int perm_mask;))
-USE_FEATURE_FIND_MTIME( ACTS(mtime, char mtime_char; int mtime_days;))
-USE_FEATURE_FIND_MMIN( ACTS(mmin, char mmin_char; int mmin_mins;))
-USE_FEATURE_FIND_NEWER( ACTS(newer, time_t newer_mtime;))
-USE_FEATURE_FIND_INUM( ACTS(inum, ino_t inode_num;))
-USE_FEATURE_FIND_EXEC( ACTS(exec, char **exec_argv; int *subst_count; int exec_argc;))
-USE_DESKTOP( ACTS(paren, action ***subexpr;))
-USE_DESKTOP( ACTS(size, off_t size;))
-USE_DESKTOP( ACTS(prune))
-
-static action ***actions;
-static int need_print = 1;
-
-static inline int one_char(const char* str, char c)
-{
- return (str[0] == c && str[1] == '\0');
-}
+ ACTS(name, const char *pattern; bool iname;)
+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_PERM( ACTS(perm, char perm_char; mode_t perm_mask;))
+IF_FEATURE_FIND_MTIME( ACTS(mtime, char mtime_char; unsigned mtime_days;))
+IF_FEATURE_FIND_MMIN( ACTS(mmin, char mmin_char; unsigned mmin_mins;))
+IF_FEATURE_FIND_NEWER( ACTS(newer, time_t newer_mtime;))
+IF_FEATURE_FIND_INUM( ACTS(inum, ino_t inode_num;))
+IF_FEATURE_FIND_USER( ACTS(user, uid_t uid;))
+IF_FEATURE_FIND_SIZE( ACTS(size, char size_char; off_t size;))
+IF_FEATURE_FIND_CONTEXT(ACTS(context, security_context_t context;))
+IF_FEATURE_FIND_PAREN( ACTS(paren, action ***subexpr;))
+IF_FEATURE_FIND_PRUNE( ACTS(prune))
+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;))
+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)
-static int count_subst(const char *str)
+#if ENABLE_FEATURE_FIND_EXEC
+static unsigned count_subst(const char *str)
{
- int count = 0;
- while ((str = strstr(str, "{}"))) {
+ unsigned count = 0;
+ while ((str = strstr(str, "{}")) != NULL) {
count++;
str++;
}
}
-static char* subst(const char *src, int count, const char* filename)
+static char* subst(const char *src, unsigned count, const char* filename)
{
char *buf, *dst, *end;
- int flen = strlen(filename);
+ size_t flen = strlen(filename);
/* we replace each '{}' with filename: growth by strlen-2 */
buf = dst = xmalloc(strlen(src) + count*(flen-2) + 1);
while ((end = strstr(src, "{}"))) {
strcpy(dst, src);
return buf;
}
+#endif
+/* Return values of ACTFs ('action functions') are a bit mask:
+ * bit 1=1: prune (use SKIP constant for setting it)
+ * 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;
- int rc = TRUE;
+ int rc = 0;
action **app, *ap;
+ /* "action group" is a set of actions ANDed together.
+ * groups are ORed together.
+ * We simply evaluate each group until we find one in which all actions
+ * succeed. */
+
+ /* -prune is special: if it is encountered, then we won't
+ * descend into current directory. It doesn't matter whether
+ * action group (in which -prune sits) will succeed or not:
+ * find * -prune -name 'f*' -o -name 'm*' -- prunes every dir
+ * find * -name 'f*' -o -prune -name 'm*' -- prunes all dirs
+ * not starting with 'f' */
+
+ /* We invert TRUE bit (bit 0). Now 1 there means 'failure'.
+ * and bitwise OR in "rc |= TRUE ^ ap->f()" will:
+ * (1) make SKIP (-prune) bit stick; and (2) detect 'failure'.
+ * 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;
- do {
+ while (1) {
ap = app[++cur_action];
- } while (ap && (rc = ap->f(fileName, statbuf, ap)));
- if (!ap) {
- /* all actions in group were successful */
- break;
+ if (!ap) /* all actions in group were successful */
+ return rc ^ TRUE; /* restore TRUE bit */
+ rc |= TRUE ^ ap->f(fileName, statbuf, ap);
+#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;
}
}
- return rc;
+ 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 = strrchr(fileName, '/');
- if (tmp == NULL)
- tmp = fileName;
- else
- tmp++;
- return fnmatch(ap->pattern, tmp, FNM_PERIOD) == 0;
+ const char *tmp = bb_basename(fileName);
+ if (tmp != fileName && *tmp == '\0') {
+ /* "foo/bar/". Oh no... go back to 'b' */
+ tmp--;
+ while (tmp != fileName && *--tmp != '/')
+ continue;
+ if (*tmp == '/')
+ tmp++;
+ }
+ /* 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
+ACTF(regex)
+{
+ regmatch_t match;
+ if (regexec(&ap->compiled_pattern, fileName, 1, &match, 0 /*eflags*/))
+ return 0; /* no match */
+ if (match.rm_so)
+ return 0; /* match doesn't start at pos 0 */
+ if (fileName[match.rm_eo])
+ return 0; /* match doesn't end exactly at end of pathname */
+ return 1;
+}
+#endif
#if ENABLE_FEATURE_FIND_TYPE
ACTF(type)
{
#if ENABLE_FEATURE_FIND_PERM
ACTF(perm)
{
- return !((isdigit(ap->perm_char) && (statbuf->st_mode & 07777) == ap->perm_mask)
- || (ap->perm_char == '-' && (statbuf->st_mode & ap->perm_mask) == ap->perm_mask)
- || (ap->perm_char == '+' && (statbuf->st_mode & ap->perm_mask) != 0));
+ /* -perm +mode: at least one of perm_mask bits are set */
+ if (ap->perm_char == '+')
+ return (statbuf->st_mode & ap->perm_mask) != 0;
+ /* -perm -mode: all of perm_mask are set */
+ if (ap->perm_char == '-')
+ return (statbuf->st_mode & ap->perm_mask) == ap->perm_mask;
+ /* -perm mode: file mode must match perm_mask */
+ return (statbuf->st_mode & 07777) == ap->perm_mask;
}
#endif
#if ENABLE_FEATURE_FIND_MTIME
ACTF(mtime)
{
time_t file_age = time(NULL) - statbuf->st_mtime;
- time_t mtime_secs = ap->mtime_days * 24 * 60 * 60;
- return !((isdigit(ap->mtime_char) && file_age >= mtime_secs
- && file_age < mtime_secs + 24 * 60 * 60)
- || (ap->mtime_char == '+' && file_age >= mtime_secs + 24 * 60 * 60)
- || (ap->mtime_char == '-' && file_age < mtime_secs));
+ time_t mtime_secs = ap->mtime_days * 24*60*60;
+ if (ap->mtime_char == '+')
+ return file_age >= mtime_secs + 24*60*60;
+ if (ap->mtime_char == '-')
+ return file_age < mtime_secs;
+ /* just numeric mtime */
+ return file_age >= mtime_secs && file_age < (mtime_secs + 24*60*60);
}
#endif
#if ENABLE_FEATURE_FIND_MMIN
{
time_t file_age = time(NULL) - statbuf->st_mtime;
time_t mmin_secs = ap->mmin_mins * 60;
- return !((isdigit(ap->mmin_char) && file_age >= mmin_secs
- && file_age < mmin_secs + 60)
- || (ap->mmin_char == '+' && file_age >= mmin_secs + 60)
- || (ap->mmin_char == '-' && file_age < mmin_secs));
+ if (ap->mmin_char == '+')
+ return file_age >= mmin_secs + 60;
+ if (ap->mmin_char == '-')
+ return file_age < mmin_secs;
+ /* just numeric mmin */
+ return file_age >= mmin_secs && file_age < (mmin_secs + 60);
}
#endif
#if ENABLE_FEATURE_FIND_NEWER
ACTF(newer)
{
- return (ap->newer_mtime >= statbuf->st_mtime);
+ return (ap->newer_mtime < statbuf->st_mtime);
}
#endif
#if ENABLE_FEATURE_FIND_INUM
ACTF(inum)
{
- return (statbuf->st_ino != ap->inode_num);
+ return (statbuf->st_ino == ap->inode_num);
}
#endif
#if ENABLE_FEATURE_FIND_EXEC
ACTF(exec)
{
int i, rc;
- char *argv[ap->exec_argc+1];
+#if ENABLE_USE_PORTABLE_CODE
+ char **argv = alloca(sizeof(char*) * (ap->exec_argc + 1));
+#else /* gcc 4.3.1 generates smaller code: */
+ char *argv[ap->exec_argc + 1];
+#endif
for (i = 0; i < ap->exec_argc; i++)
argv[i] = subst(ap->exec_argv[i], ap->subst_count[i], fileName);
argv[i] = NULL; /* terminate the list */
- rc = wait4pid(spawn(argv));
- if (rc)
- bb_perror_msg("%s", argv[0]);
- for (i = 0; i < ap->exec_argc; i++)
- free(argv[i]);
- return rc == 0; /* return 1 if success */
+
+ rc = spawn_and_wait(argv);
+ if (rc < 0)
+ bb_simple_perror_msg(argv[0]);
+
+ i = 0;
+ while (argv[i])
+ free(argv[i++]);
+ return rc == 0; /* return 1 if exitcode 0 */
+}
+#endif
+#if ENABLE_FEATURE_FIND_USER
+ACTF(user)
+{
+ return (statbuf->st_uid == ap->uid);
+}
+#endif
+#if ENABLE_FEATURE_FIND_GROUP
+ACTF(group)
+{
+ return (statbuf->st_gid == ap->gid);
}
#endif
-
#if ENABLE_FEATURE_FIND_PRINT0
ACTF(print0)
{
return TRUE;
}
#endif
-
ACTF(print)
{
puts(fileName);
return TRUE;
}
-
-#if ENABLE_DESKTOP
+#if ENABLE_FEATURE_FIND_PAREN
ACTF(paren)
{
return exec_actions(ap->subexpr, fileName, statbuf);
}
-
+#endif
+#if ENABLE_FEATURE_FIND_SIZE
+ACTF(size)
+{
+ if (ap->size_char == '+')
+ return statbuf->st_size > ap->size;
+ if (ap->size_char == '-')
+ return statbuf->st_size < ap->size;
+ return statbuf->st_size == ap->size;
+}
+#endif
+#if ENABLE_FEATURE_FIND_PRUNE
/*
* -prune: if -depth is not given, return true and do not descend
* current dir; if -depth is given, return false with no effect.
*/
ACTF(prune)
{
- return SKIP;
+ return SKIP + TRUE;
}
-
-ACTF(size)
+#endif
+#if ENABLE_FEATURE_FIND_DELETE
+ACTF(delete)
{
- return statbuf->st_size == ap->size;
+ int rc;
+ if (S_ISDIR(statbuf->st_mode)) {
+ rc = rmdir(fileName);
+ } else {
+ rc = unlink(fileName);
+ }
+ if (rc < 0)
+ bb_simple_perror_msg(fileName);
+ return TRUE;
}
#endif
-
-
-static int fileAction(const char *fileName, struct stat *statbuf, void* junk, int depth)
+#if ENABLE_FEATURE_FIND_CONTEXT
+ACTF(context)
{
+ security_context_t con;
int rc;
-#ifdef CONFIG_FEATURE_FIND_XDEV
- if (S_ISDIR(statbuf->st_mode) && xdev_count) {
- int i;
- for (i = 0; i < xdev_count; i++) {
- if (xdev_dev[i] != statbuf->st_dev)
- return SKIP;
- }
+
+ if (G.recurse_flags & ACTION_FOLLOWLINKS) {
+ rc = getfilecon(fileName, &con);
+ } else {
+ rc = lgetfilecon(fileName, &con);
}
+ if (rc < 0)
+ return FALSE;
+ rc = strcmp(ap->context, con);
+ freecon(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
- rc = exec_actions(actions, fileName, statbuf);
+
+static int FAST_FUNC fileAction(const char *fileName,
+ struct stat *statbuf,
+ void *userData UNUSED_PARAM,
+ int depth IF_NOT_FEATURE_FIND_MAXDEPTH(UNUSED_PARAM))
+{
+ int r;
+
+#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 (rc && need_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
+ /* -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
+
/* Cannot return 0: our caller, recursive_action(),
* will perror() and skip dirs (if called on dir) */
- return rc == 0 ? TRUE : rc;
+ return (r & SKIP) ? SKIP : TRUE;
}
#if ENABLE_FEATURE_FIND_TYPE
-static int find_type(char *type)
+static int find_type(const char *type)
{
int mask = 0;
- switch (type[0]) {
- case 'b':
+ if (*type == 'b')
mask = S_IFBLK;
- break;
- case 'c':
+ else if (*type == 'c')
mask = S_IFCHR;
- break;
- case 'd':
+ else if (*type == 'd')
mask = S_IFDIR;
- break;
- case 'p':
+ else if (*type == 'p')
mask = S_IFIFO;
- break;
- case 'f':
+ else if (*type == 'f')
mask = S_IFREG;
- break;
- case 'l':
+ else if (*type == 'l')
mask = S_IFLNK;
- break;
- case 's':
+ else if (*type == 's')
mask = S_IFSOCK;
- break;
- }
if (mask == 0 || type[1] != '\0')
bb_error_msg_and_die(bb_msg_invalid_arg, type, "-type");
}
#endif
-action*** parse_params(char **argv)
+#if ENABLE_FEATURE_FIND_PERM \
+ || ENABLE_FEATURE_FIND_MTIME || ENABLE_FEATURE_FIND_MMIN \
+ || ENABLE_FEATURE_FIND_SIZE || ENABLE_FEATURE_FIND_LINKS
+static const char* plus_minus_num(const char* str)
+{
+ if (*str == '-' || *str == '+')
+ str++;
+ return str;
+}
+#endif
+
+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 ENABLE_DESKTOP
+ PARM_and ,
+ PARM_or ,
+ IF_FEATURE_FIND_NOT( PARM_not ,)
+#endif
+ PARM_print ,
+ IF_FEATURE_FIND_PRINT0( PARM_print0 ,)
+ 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/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_MTIME( PARM_mtime ,)
+ IF_FEATURE_FIND_MMIN( PARM_mmin ,)
+ IF_FEATURE_FIND_NEWER( PARM_newer ,)
+ IF_FEATURE_FIND_INUM( PARM_inum ,)
+ IF_FEATURE_FIND_USER( PARM_user ,)
+ 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 =
+ "-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" )
+#endif
+ "-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/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_MTIME( "-mtime\0" )
+ IF_FEATURE_FIND_MMIN( "-mmin\0" )
+ IF_FEATURE_FIND_NEWER( "-newer\0" )
+ IF_FEATURE_FIND_INUM( "-inum\0" )
+ IF_FEATURE_FIND_USER( "-user\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;
- int cur_group = 0;
- int cur_action = 0;
+ unsigned cur_group = 0;
+ unsigned cur_action = 0;
+ IF_FEATURE_FIND_NOT( bool invert_flag = 0; )
+ /* This is the only place in busybox where we use nested function.
+ * So far more standard alternatives were bigger. */
+ /* 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; )
+ IF_FEATURE_FIND_NOT( invert_flag = 0; )
return ap;
}
+
#define ALLOC_ACTION(name) (action_##name*)alloc_action(sizeof(action_##name), (action_fp) func_##name)
- appp = xzalloc(2 * sizeof(*appp)); /* appp[0],[1] == NULL */
+ appp = xzalloc(2 * sizeof(appp[0])); /* appp[0],[1] == NULL */
+
+ while (*argv) {
+ const char *arg = argv[0];
+ int parm = index_in_strings(params, arg);
+ const char *arg1 = argv[1];
-// Actions have side effects and return a true or false value
-// We implement: -print, -print0, -exec
+ dbg("arg:'%s' arg1:'%s' parm:%d PARM_type:%d", arg, arg1, parm, PARM_type);
-// The rest are tests.
+ if (parm >= PARM_name) {
+ /* All options/actions starting from -name require argument */
+ if (!arg1)
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ argv++;
+ }
-// 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
+ /* We can use big switch() here, but on i386
+ * it doesn't give smaller code. Other arches? */
- while (*argv) {
- char *arg = argv[0];
- char *arg1 = argv[1];
- /* --- Operators --- */
- if (strcmp(arg, "-a") == 0
- USE_DESKTOP(|| strcmp(arg, "-and") == 0)
- ) {
- /* no special handling required */
+/* 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;
}
- else if (strcmp(arg, "-o") == 0
- USE_DESKTOP(|| strcmp(arg, "-or") == 0)
- ) {
+#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));
- appp[cur_group] = NULL;
+ /*appp[cur_group] = NULL; - already NULL */
appp[cur_group+1] = NULL;
cur_action = 0;
}
-
- /* --- Tests and actions --- */
- else if (strcmp(arg, "-print") == 0) {
- need_print = 0;
+#if ENABLE_FEATURE_FIND_NOT
+ 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
+ /* Actions */
+ else if (parm == PARM_print) {
+ dbg("%d", __LINE__);
+ G.need_print = 0;
(void) ALLOC_ACTION(print);
}
#if ENABLE_FEATURE_FIND_PRINT0
- else if (strcmp(arg, "-print0") == 0) {
- need_print = 0;
+ else if (parm == PARM_print0) {
+ dbg("%d", __LINE__);
+ G.need_print = 0;
(void) ALLOC_ACTION(print0);
}
#endif
- else if (strcmp(arg, "-name") == 0) {
- action_name *ap;
- if (!*++argv)
+#if ENABLE_FEATURE_FIND_PRUNE
+ else if (parm == PARM_prune) {
+ dbg("%d", __LINE__);
+ (void) ALLOC_ACTION(prune);
+ }
+#endif
+#if ENABLE_FEATURE_FIND_DELETE
+ else if (parm == PARM_delete) {
+ dbg("%d", __LINE__);
+ G.need_print = 0;
+ G.recurse_flags |= ACTION_DEPTHFIRST;
+ (void) ALLOC_ACTION(delete);
+ }
+#endif
+#if ENABLE_FEATURE_FIND_EXEC
+ else if (parm == PARM_exec) {
+ int i;
+ action_exec *ap;
+ dbg("%d", __LINE__);
+ G.need_print = 0;
+ ap = ALLOC_ACTION(exec);
+ ap->exec_argv = ++argv; /* first arg after -exec */
+ /*ap->exec_argc = 0; - ALLOC_ACTION did it */
+ while (1) {
+ 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++;
+ }
+ if (ap->exec_argc == 0)
bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ ap->subst_count = xmalloc(ap->exec_argc * sizeof(int));
+ i = ap->exec_argc;
+ while (i--)
+ ap->subst_count[i] = count_subst(ap->exec_argv[i]);
+ }
+#endif
+#if ENABLE_FEATURE_FIND_PAREN
+ else if (parm == PARM_char_brace) {
+ action_paren *ap;
+ char **endarg;
+ unsigned nested = 1;
+
+ dbg("%d", __LINE__);
+ endarg = argv;
+ while (1) {
+ if (!*++endarg)
+ bb_error_msg_and_die("unpaired '('");
+ if (LONE_CHAR(*endarg, '('))
+ nested++;
+ else if (LONE_CHAR(*endarg, ')') && !--nested) {
+ *endarg = NULL;
+ break;
+ }
+ }
+ ap = ALLOC_ACTION(paren);
+ ap->subexpr = parse_params(argv + 1);
+ *endarg = (char*) ")"; /* restore NULLed parameter */
+ argv = 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 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*/);
}
+#endif
#if ENABLE_FEATURE_FIND_TYPE
- else if (strcmp(arg, "-type") == 0) {
+ else if (parm == PARM_type) {
action_type *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
ap = ALLOC_ACTION(type);
ap->type_mask = find_type(arg1);
+ dbg("created:type mask:%x", ap->type_mask);
}
#endif
#if ENABLE_FEATURE_FIND_PERM
-/* TODO:
- * -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 (strcmp(arg, "-perm") == 0) {
+ else if (parm == PARM_perm) {
action_perm *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(perm);
- ap->perm_mask = xstrtol_range(arg1, 8, 0, 07777);
ap->perm_char = arg1[0];
- if (ap->perm_char == '-')
- ap->perm_mask = -ap->perm_mask;
+ arg1 = plus_minus_num(arg1);
+ /*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);
}
#endif
#if ENABLE_FEATURE_FIND_MTIME
- else if (strcmp(arg, "-mtime") == 0) {
+ else if (parm == PARM_mtime) {
action_mtime *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(mtime);
- ap->mtime_days = xatol(arg1);
ap->mtime_char = arg1[0];
- if (ap->mtime_char == '-')
- ap->mtime_days = -ap->mtime_days;
+ ap->mtime_days = xatoul(plus_minus_num(arg1));
}
#endif
#if ENABLE_FEATURE_FIND_MMIN
- else if (strcmp(arg, "-mmin") == 0) {
+ else if (parm == PARM_mmin) {
action_mmin *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(mmin);
- ap->mmin_mins = xatol(arg1);
ap->mmin_char = arg1[0];
- if (ap->mmin_char == '-')
- ap->mmin_mins = -ap->mmin_mins;
+ ap->mmin_mins = xatoul(plus_minus_num(arg1));
}
#endif
#if ENABLE_FEATURE_FIND_NEWER
- else if (strcmp(arg, "-newer") == 0) {
- action_newer *ap;
+ else if (parm == PARM_newer) {
struct stat stat_newer;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
- xstat(arg1, &stat_newer);
+ action_newer *ap;
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(newer);
+ xstat(arg1, &stat_newer);
ap->newer_mtime = stat_newer.st_mtime;
}
#endif
#if ENABLE_FEATURE_FIND_INUM
- else if (strcmp(arg, "-inum") == 0) {
+ else if (parm == PARM_inum) {
action_inum *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(inum);
ap->inode_num = xatoul(arg1);
}
#endif
-#if ENABLE_FEATURE_FIND_EXEC
- else if (strcmp(arg, "-exec") == 0) {
- int i;
- action_exec *ap;
- need_print = 0;
- ap = ALLOC_ACTION(exec);
- ap->exec_argv = ++argv; /* first arg after -exec */
- ap->exec_argc = 0;
- while (1) {
- if (!*argv) /* did not see ';' till end */
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
- if (one_char(argv[0], ';'))
- break;
- argv++;
- ap->exec_argc++;
- }
- if (ap->exec_argc == 0)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
- ap->subst_count = xmalloc(ap->exec_argc * sizeof(int));
- i = ap->exec_argc;
- while (i--)
- ap->subst_count[i] = count_subst(ap->exec_argv[i]);
+#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)
+ ap->uid = xuname2uid(arg1);
}
#endif
-#if ENABLE_DESKTOP
- else if (one_char(arg, '(')) {
- action_paren *ap;
- char **endarg;
- int nested = 1;
-
- endarg = argv;
- while (1) {
- if (!*++endarg)
- bb_error_msg_and_die("unpaired '('");
- if (one_char(*endarg, '('))
- nested++;
- else if (one_char(*endarg, ')') && !--nested) {
- *endarg = NULL;
- break;
- }
- }
- ap = ALLOC_ACTION(paren);
- ap->subexpr = parse_params(argv + 1);
- *endarg = ")"; /* restore NULLed parameter */
- argv = endarg;
- }
- else if (strcmp(arg, "-prune") == 0) {
- (void) ALLOC_ACTION(prune);
+#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)
+ ap->gid = xgroup2gid(arg1);
}
- else if (strcmp(arg, "-size") == 0) {
+#endif
+#if ENABLE_FEATURE_FIND_SIZE
+ else if (parm == PARM_size) {
+/* -size n[bckw]: file uses n units of space
+ * b (default): units are 512-byte blocks
+ * c: 1 byte
+ * k: kilobytes
+ * w: 2-byte words
+ */
+#if ENABLE_LFS
+#define XATOU_SFX xatoull_sfx
+#else
+#define XATOU_SFX xatoul_sfx
+#endif
+ static const struct suffix_mult find_suffixes[] = {
+ { "c", 1 },
+ { "w", 2 },
+ { "", 512 },
+ { "b", 512 },
+ { "k", 1024 },
+ { "", 0 }
+ };
action_size *ap;
- if (!*++argv)
- bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ dbg("%d", __LINE__);
ap = ALLOC_ACTION(size);
- ap->size = XATOOFF(arg1);
+ ap->size_char = arg1[0];
+ ap->size = XATOU_SFX(plus_minus_num(arg1), find_suffixes);
+ }
+#endif
+#if ENABLE_FEATURE_FIND_CONTEXT
+ else if (parm == PARM_context) {
+ action_context *ap;
+ dbg("%d", __LINE__);
+ ap = ALLOC_ACTION(context);
+ /*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
+ else {
+ bb_error_msg("unrecognized: %s", arg);
bb_show_usage();
+ }
argv++;
}
-
+ dbg("exiting %s", __func__);
return appp;
#undef ALLOC_ACTION
}
-
-int find_main(int argc, char **argv)
+int find_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int find_main(int argc UNUSED_PARAM, char **argv)
{
- int dereference = FALSE;
- char *arg;
- char **argp;
int i, firstopt, status = EXIT_SUCCESS;
- for (firstopt = 1; firstopt < argc; firstopt++) {
+ INIT_G();
+
+ argv++;
+ for (firstopt = 0; argv[firstopt]; firstopt++) {
if (argv[firstopt][0] == '-')
break;
-#if ENABLE_DESKTOP
- if (one_char(argv[firstopt], '('))
+ if (ENABLE_FEATURE_FIND_NOT && LONE_CHAR(argv[firstopt], '!'))
+ break;
+ if (ENABLE_FEATURE_FIND_PAREN && LONE_CHAR(argv[firstopt], '('))
break;
-#endif
}
- if (firstopt == 1) {
- argv[0] = ".";
- 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
+ G.actions = parse_params(&argv[firstopt]);
+ argv[firstopt] = NULL;
- /* Process options, and replace then with -a */
- /* (-a will be ignored by recursive parser later) */
- argp = &argv[firstopt];
- while ((arg = argp[0])) {
- if (strcmp(arg, "-follow") == 0) {
- dereference = TRUE;
- argp[0] = "-a";
- }
#if ENABLE_FEATURE_FIND_XDEV
- else if (strcmp(arg, "-xdev") == 0) {
- 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] = "-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
+ */
}
- argp++;
}
#endif
- actions = parse_params(&argv[firstopt]);
-
- for (i = 1; i < firstopt; i++) {
+ for (i = 0; argv[i]; i++) {
if (!recursive_action(argv[i],
- TRUE, // recurse
- dereference, // follow links
- FALSE, // depth first
- fileAction, // file action
- fileAction, // dir action
- NULL, // user data
- 0)) // depth
+ G.recurse_flags,/* flags */
+ fileAction, /* file action */
+ fileAction, /* dir action */
+ NULL, /* user data */
+ 0) /* depth */
+ ) {
status = EXIT_FAILURE;
+ }
}
+
return status;
}
projects / oweals / busybox.git / blobdiff