X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=findutils%2Ffind.c;h=6407c6c5afd2c623ba532975932e17db23de6c14;hb=9b70f197b4dd5be47c5d0d4479525efe012964ee;hp=6346d454f4a08fcdad7c1a6d45eb908016ebe2f2;hpb=e49d5ecbbe51718fa925b6890a735e5937cc2aa2;p=oweals%2Fbusybox.git diff --git a/findutils/find.c b/findutils/find.c index 6346d454f..6407c6c5a 100644 --- a/findutils/find.c +++ b/findutils/find.c @@ -2,122 +2,1531 @@ /* * Mini find implementation for busybox * + * Copyright (C) 1999-2004 by Erik Andersen * - * Copyright (C) 1999 by Lineo, inc. - * Written by Erik Andersen , + * Reworked by David Douthitt and + * Matt Kraai . * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. + * Licensed under GPLv2, see file LICENSE in this source tree. + */ +/* findutils-4.1.20: * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * # find file.txt -exec 'echo {}' '{} {}' ';' + * find: echo file.txt: No such file or directory + * # find file.txt -exec 'echo' '{} {}' '; ' + * find: missing argument to '-exec' + * # find file.txt -exec 'echo {}' '{} {}' ';' junk + * find: paths must precede expression + * # find file.txt -exec 'echo {}' '{} {}' ';' junk ';' + * find: paths must precede expression + * # find file.txt -exec 'echo' '{} {}' ';' + * file.txt file.txt + * (strace: execve("/bin/echo", ["echo", "file.txt file.txt"], [ 30 vars ])) + * # find file.txt -exec 'echo' '{} {}' ';' -print -exec pwd ';' + * file.txt file.txt + * file.txt + * /tmp + * # find -name '*.c' -o -name '*.h' + * [shows files, *.c and *.h intermixed] + * # find file.txt -name '*f*' -o -name '*t*' + * file.txt + * # find file.txt -name '*z*' -o -name '*t*' + * file.txt + * # find file.txt -name '*f*' -o -name '*z*' + * file.txt * + * # find t z -name '*t*' -print -o -name '*z*' + * t + * # find t z t z -name '*t*' -o -name '*z*' -print + * z + * z + * # find t z t z '(' -name '*t*' -o -name '*z*' ')' -o -print + * (no output) */ +/* 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 (14 kb)" +//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: +//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_EXECUTABLE +//config: bool "Enable -executable: file is executable" +//config: default y +//config: depends on FIND +//config: +//config:config FEATURE_FIND_XDEV +//config: bool "Enable -xdev: 'stay in filesystem'" +//config: default y +//config: depends on FIND +//config: +//config:config FEATURE_FIND_MAXDEPTH +//config: bool "Enable -mindepth N and -maxdepth N" +//config: default y +//config: depends on FIND +//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: +//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_EXEC_PLUS +//config: bool "Enable -exec ... {} +" +//config: default y +//config: depends on FEATURE_FIND_EXEC +//config: help +//config: Support the 'find -exec ... {} +' option for executing commands +//config: for all matched files at once. +//config: Without this option, -exec + is a synonym for -exec ; +//config: (IOW: it works correctly, but without expected speedup) +//config: +//config:config FEATURE_FIND_USER +//config: bool "Enable -user: username/uid matching" +//config: default y +//config: depends on FIND +//config: +//config:config FEATURE_FIND_GROUP +//config: bool "Enable -group: group/gid matching" +//config: default y +//config: depends on FIND +//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: +//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, don't descend into it. Useful for +//config: exclusion .svn and CVS directories. +//config: +//config:config FEATURE_FIND_QUIT +//config: bool "Enable -quit: exit" +//config: default y +//config: depends on FIND +//config: help +//config: If this action is reached, 'find' exits. +//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)) -#include "internal.h" -#include "regexp.h" -#include -#include -#include - - -static char *pattern = NULL; -static char *directory = "."; -static int dereferenceFlag = FALSE; - -static const char find_usage[] = "find [PATH...] [EXPRESSION]\n\n" - "Search for files in a directory hierarchy. The default PATH is\n" - "the current directory; default EXPRESSION is '-print'\n\n" - "\nEXPRESSION may consist of:\n" - "\t-follow\n\t\tDereference symbolic links.\n" - "\t-name PATTERN\n\t\tFile name (with leading directories removed) matches PATTERN.\n" - "\t-print\n\t\tprint the full file name followed by a newline to stdout.\n\n" -#if defined BB_REGEXP - "This version of find matches full regular expresions.\n"; +//kbuild:lib-$(CONFIG_FIND) += find.o + +//usage:#define find_trivial_usage +//usage: "[-HL] [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 -L,-follow Follow symlinks" +//usage: "\n -H ...on command line only" +//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,s,p)" +//usage: ) +//usage: IF_FEATURE_FIND_EXECUTABLE( +//usage: "\n -executable File is executable" +//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_EXEC_PLUS( +//usage: "\n -exec CMD ARG + Run CMD with {} replaced by list of file names" +//usage: ) +//usage: IF_FEATURE_FIND_DELETE( +//usage: "\n -delete Delete current file/directory. Turns on -depth option" +//usage: ) +//usage: IF_FEATURE_FIND_QUIT( +//usage: "\n -quit Exit" +//usage: ) +//usage: +//usage:#define find_example_usage +//usage: "$ find / -name passwd\n" +//usage: "/etc/passwd\n" + +#include +#include "libbb.h" +#include "common_bufsiz.h" +#if ENABLE_FEATURE_FIND_REGEX +# include "xregex.h" +#endif +/* GNUism: */ +#ifndef FNM_CASEFOLD +# define FNM_CASEFOLD 0 +#endif + +#if 1 +# define dbg(...) ((void)0) #else - "This version of find matches strings (not regular expresions).\n"; +# define dbg(...) bb_error_msg(__VA_ARGS__) +#endif + + +/* 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, ...) 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, 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_EXECUTABLE(ACTS(executable)) +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_QUIT( ACTS(quit)) +IF_FEATURE_FIND_DELETE( ACTS(delete)) +IF_FEATURE_FIND_EXEC( ACTS(exec, + char **exec_argv; /* -exec ARGS */ + unsigned *subst_count; + int exec_argc; /* count of ARGS */ + IF_FEATURE_FIND_EXEC_PLUS( + /* + * filelist is NULL if "exec ;" + * non-NULL if "exec +" + */ + char **filelist; + int filelist_idx; + int file_len; + ) + )) +IF_FEATURE_FIND_GROUP( ACTS(group, gid_t gid;)) +IF_FEATURE_FIND_LINKS( ACTS(links, char links_char; int links_count;)) -static int fileAction(const char *fileName, struct stat *statbuf) +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; + smalluint exitstatus; + recurse_flags_t recurse_flags; + IF_FEATURE_FIND_EXEC_PLUS(unsigned max_argv_len;) +} FIX_ALIASING; +#define G (*(struct globals*)bb_common_bufsiz1) +#define INIT_G() do { \ + setup_common_bufsiz(); \ + BUILD_BUG_ON(sizeof(G) > COMMON_BUFSIZE); \ + /* we have to zero it out because of NOEXEC */ \ + memset(&G, 0, sizeof(G)); \ + IF_FEATURE_FIND_MAXDEPTH(G.minmaxdepth[1] = INT_MAX;) \ + IF_FEATURE_FIND_EXEC_PLUS(G.max_argv_len = bb_arg_max() - 2048;) \ + G.need_print = 1; \ + G.recurse_flags = ACTION_RECURSE; \ +} while (0) + +/* 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, const struct stat *statbuf) { - if (pattern == NULL) - fprintf(stdout, "%s\n", fileName); - else { - char *tmp = strrchr(fileName, '/'); + int cur_group; + int cur_action; + 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. */ - if (tmp == NULL) - tmp = (char *) fileName; - else - tmp++; - if (check_wildcard_match(tmp, pattern) == TRUE) - fprintf(stdout, "%s\n", fileName); + cur_group = -1; + while ((app = appp[++cur_group]) != NULL) { + rc &= ~TRUE; /* 'success' so far, clear TRUE bit */ + cur_action = -1; + while (1) { + ap = app[++cur_action]; + 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 (TRUE); + dbg("returning:0x%x", rc ^ TRUE); + return rc ^ TRUE; /* restore TRUE bit */ } -int find_main(int argc, char **argv) +#if !FNM_CASEFOLD +static char *strcpy_upcase(char *dst, const char *src) { - /* peel off the "find" */ - argc--; - argv++; + 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 - if (argc > 0 && **argv != '-') { - directory = *argv; - argc--; - argv++; +ACTF(name) +{ + int r; + const char *tmp = bb_basename(fileName); + /* GNU findutils: find DIR/ -name DIR + * prints "DIR/" (DIR// prints "DIR//" etc). + * Need to strip trailing "/". + * Such names can come only from top-level names, but + * we can't do this before recursive_action() call, + * since then "find FILE/ -name FILE" + * would also work (on non-directories), which is wrong. + */ + char *trunc_slash = NULL; + + if (*tmp == '\0') { + /* "foo/bar/[//...]" */ + while (tmp != fileName && tmp[-1] == '/') + tmp--; + if (tmp == fileName) { /* entire fileName is "//.."? */ + /* yes, convert "//..." to "/" + * Testcases: + * find / -maxdepth 1 -name /: prints / + * find // -maxdepth 1 -name /: prints // + * find / -maxdepth 1 -name //: prints nothing + * find // -maxdepth 1 -name //: prints nothing + */ + if (tmp[1]) + trunc_slash = (char*)tmp + 1; + } else { + /* no, it's "foo/bar/[//...]", go back to 'b' */ + trunc_slash = (char*)tmp; + while (tmp != fileName && tmp[-1] != '/') + tmp--; + } } - /* Parse any options */ - while (argc > 0 && **argv == '-') { - int stopit = FALSE; + /* 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 (trunc_slash) *trunc_slash = '\0'; +#if FNM_CASEFOLD + r = fnmatch(ap->pattern, tmp, (ap->iname ? FNM_CASEFOLD : 0)); +#else + if (ap->iname) + tmp = strcpy_upcase(alloca(strlen(tmp) + 1), tmp); + r = fnmatch(ap->pattern, tmp, 0); +#endif + if (trunc_slash) *trunc_slash = '/'; + return r == 0; +} - while (*++(*argv) && stopit == FALSE) - switch (**argv) { - case 'f': - if (strcmp(*argv, "follow") == 0) { - argc--; - argv++; - dereferenceFlag = TRUE; +#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) +{ + return ((statbuf->st_mode & S_IFMT) == ap->type_mask); +} +#endif +#if ENABLE_FEATURE_FIND_EXECUTABLE +ACTF(executable) +{ + return access(fileName, X_OK) == 0; +} +#endif +#if ENABLE_FEATURE_FIND_PERM +ACTF(perm) +{ + /* -perm [+/]mode: at least one of perm_mask bits are set */ + if (ap->perm_char == '+' || 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; + 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 +ACTF(mmin) +{ + time_t file_age = time(NULL) - statbuf->st_mtime; + time_t mmin_secs = ap->mmin_mins * 60; + 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); +} +#endif +#if ENABLE_FEATURE_FIND_INUM +ACTF(inum) +{ + return (statbuf->st_ino == ap->inode_num); +} +#endif +#if ENABLE_FEATURE_FIND_EXEC +static int do_exec(action_exec *ap, const char *fileName) +{ + int i, rc; +# if ENABLE_FEATURE_FIND_EXEC_PLUS + int size = ap->exec_argc + ap->filelist_idx + 1; +# else + int size = ap->exec_argc + 1; +# endif +# if ENABLE_USE_PORTABLE_CODE + char **argv = alloca(sizeof(char*) * size); +# else /* gcc 4.3.1 generates smaller code: */ + char *argv[size]; +# endif + char **pp = argv; + + for (i = 0; i < ap->exec_argc; i++) { + const char *arg = ap->exec_argv[i]; + +# if ENABLE_FEATURE_FIND_EXEC_PLUS + if (ap->filelist) { + /* Handling "-exec +" + * Only one exec_argv[i] has substitution in it. + * Expand that one exec_argv[i] into file list. + */ + if (ap->subst_count[i] == 0) { + *pp++ = xstrdup(arg); + } else { + int j = 0; + while (ap->filelist[j]) { + /* 2nd arg here should be ap->subst_count[i], but it is always 1: */ + *pp++ = xmalloc_substitute_string(arg, 1, "{}", ap->filelist[j]); + free(ap->filelist[j]); + j++; } - break; - case 'n': - if (strcmp(*argv, "name") == 0) { - if (argc-- > 1) { - pattern = *(++argv); - stopit = TRUE; - } else { - usage(find_usage); - } + } + } else +# endif + { + /* Handling "-exec ;" */ + *pp++ = xmalloc_substitute_string(arg, ap->subst_count[i], "{}", fileName); + } + } + *pp = NULL; /* terminate the list */ + +# if ENABLE_FEATURE_FIND_EXEC_PLUS + if (ap->filelist) { + ap->filelist[0] = NULL; + ap->filelist_idx = 0; + ap->file_len = 0; + } +# endif + + 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 */ +} +ACTF(exec) +{ +# if ENABLE_FEATURE_FIND_EXEC_PLUS + if (ap->filelist) { + int rc; + + ap->filelist = xrealloc_vector(ap->filelist, 8, ap->filelist_idx); + ap->filelist[ap->filelist_idx++] = xstrdup(fileName); + ap->file_len += strlen(fileName) + sizeof(char*) + 1; + /* If we have lots of files already, exec the command */ + rc = 1; + if (ap->file_len >= G.max_argv_len) + rc = do_exec(ap, NULL); + return rc; + } +# endif + return do_exec(ap, fileName); +} +# if ENABLE_FEATURE_FIND_EXEC_PLUS +static int flush_exec_plus(void) +{ + action *ap; + action **app; + action ***appp = G.actions; + while ((app = *appp++) != NULL) { + while ((ap = *app++) != NULL) { + if (ap->f == (action_fp)func_exec) { + action_exec *ae = (void*)ap; + if (ae->filelist_idx != 0) { + int rc = do_exec(ae, NULL); +# if ENABLE_FEATURE_FIND_NOT + if (ap->invert) rc = !rc; +# endif + if (rc == 0) + return 1; } - break; - case '-': - /* Ignore all long options */ - break; - default: - usage(find_usage); } - if (argc-- > 1) + } + } + return 0; +} +# endif +#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) +{ + printf("%s%c", fileName, '\0'); + return TRUE; +} +#endif +ACTF(print) +{ + puts(fileName); + return TRUE; +} +#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. + * Example: + * find dir -name 'asm-*' -prune -o -name '*.[chS]' -print + */ +ACTF(prune) +{ + return SKIP + TRUE; +} +#endif +#if ENABLE_FEATURE_FIND_QUIT +ACTF(quit) +{ + exit(G.exitstatus); +} +#endif +#if ENABLE_FEATURE_FIND_DELETE +ACTF(delete) +{ + int rc; + if (S_ISDIR(statbuf->st_mode)) { + /* "find . -delete" skips rmdir(".") */ + rc = 0; + if (NOT_LONE_CHAR(fileName, '.')) + rc = rmdir(fileName); + } else { + rc = unlink(fileName); + } + if (rc < 0) + bb_simple_perror_msg(fileName); + return TRUE; +} +#endif +#if ENABLE_FEATURE_FIND_CONTEXT +ACTF(context) +{ + security_context_t con; + int rc; + + 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 + +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; + int same_fs = 1; + +#if ENABLE_FEATURE_FIND_XDEV + if (S_ISDIR(statbuf->st_mode) && G.xdev_count) { + int i; + for (i = 0; i < G.xdev_count; i++) { + if (G.xdev_dev[i] == statbuf->st_dev) + goto found; + } + //bb_error_msg("'%s': not same fs", fileName); + same_fs = 0; + found: ; + } +#endif + +#if ENABLE_FEATURE_FIND_MAXDEPTH + if (depth < G.minmaxdepth[0]) { + if (same_fs) + return TRUE; /* skip this, continue recursing */ + return SKIP; /* stop 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 + /* -xdev stops on mountpoints, but AFTER mountpoit itself + * is processed as usual */ + if (!same_fs) { + return SKIP; + } + + /* Cannot return 0: our caller, recursive_action(), + * will perror() and skip dirs (if called on dir) */ + return (r & SKIP) ? SKIP : TRUE; +} + + +#if ENABLE_FEATURE_FIND_TYPE +static int find_type(const char *type) +{ + int mask = 0; + + if (*type == 'b') + mask = S_IFBLK; + else if (*type == 'c') + mask = S_IFCHR; + else if (*type == 'd') + mask = S_IFDIR; + else if (*type == 'p') + mask = S_IFIFO; + else if (*type == 'f') + mask = S_IFREG; + else if (*type == 'l') + mask = S_IFLNK; + else if (*type == 's') + mask = S_IFSOCK; + + if (mask == 0 || type[1] != '\0') + bb_error_msg_and_die(bb_msg_invalid_arg_to, type, "-type"); + + return mask; +} +#endif + +#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 + +/* Say no to GCCism */ +#define USE_NESTED_FUNCTION 0 + +#if !USE_NESTED_FUNCTION +struct pp_locals { + action*** appp; + unsigned cur_group; + unsigned cur_action; + IF_FEATURE_FIND_NOT( bool invert_flag; ) +}; +static action* alloc_action(struct pp_locals *ppl, int sizeof_struct, action_fp f) +{ + action *ap = xzalloc(sizeof_struct); + action **app; + action ***group = &ppl->appp[ppl->cur_group]; + *group = app = xrealloc(*group, (ppl->cur_action+2) * sizeof(ppl->appp[0][0])); + app[ppl->cur_action++] = ap; + app[ppl->cur_action] = NULL; + ap->f = f; + IF_FEATURE_FIND_NOT( ap->invert = ppl->invert_flag; ) + IF_FEATURE_FIND_NOT( ppl->invert_flag = 0; ) + return ap; +} +#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_QUIT( PARM_quit ,) + IF_FEATURE_FIND_DELETE( PARM_delete ,) + IF_FEATURE_FIND_EXEC( PARM_exec ,) + IF_FEATURE_FIND_EXECUTABLE(PARM_executable,) + 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_QUIT( "-quit\0" ) + IF_FEATURE_FIND_DELETE( "-delete\0" ) + IF_FEATURE_FIND_EXEC( "-exec\0" ) + IF_FEATURE_FIND_EXECUTABLE("-executable\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") + ; + +#if !USE_NESTED_FUNCTION + struct pp_locals ppl; +#define appp (ppl.appp ) +#define cur_group (ppl.cur_group ) +#define cur_action (ppl.cur_action ) +#define invert_flag (ppl.invert_flag) +#define ALLOC_ACTION(name) (action_##name*)alloc_action(&ppl, sizeof(action_##name), (action_fp) func_##name) +#else + action*** appp; + unsigned cur_group; + unsigned cur_action; + IF_FEATURE_FIND_NOT( bool invert_flag; ) + + /* 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[0][0])); + 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) +#endif + + cur_group = 0; + cur_action = 0; + IF_FEATURE_FIND_NOT( invert_flag = 0; ) + 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]; + + dbg("arg:'%s' arg1:'%s' parm:%d PARM_type:%d", arg, arg1, parm, PARM_type); + + 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++; - if (**argv != '-') + } + + /* We can use big switch() here, but on i386 + * it doesn't give smaller code. Other arches? */ + +/* 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[0])); + /*appp[cur_group] = NULL; - already NULL */ + appp[cur_group+1] = NULL; + cur_action = 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 (parm == PARM_print0) { + dbg("%d", __LINE__); + G.need_print = 0; + (void) ALLOC_ACTION(print0); + } +#endif +#if ENABLE_FEATURE_FIND_PRUNE + else if (parm == PARM_prune) { + dbg("%d", __LINE__); + (void) ALLOC_ACTION(prune); + } +#endif +#if ENABLE_FEATURE_FIND_QUIT + else if (parm == PARM_quit) { + dbg("%d", __LINE__); + (void) ALLOC_ACTION(quit); + } +#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; + IF_FEATURE_FIND_EXEC_PLUS(int all_subst = 0;) + 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...". + if ((argv[0][0] == ';' || argv[0][0] == '+') + && argv[0][1] == '\0' + ) { +# if ENABLE_FEATURE_FIND_EXEC_PLUS + if (argv[0][0] == '+') + ap->filelist = xzalloc(sizeof(ap->filelist[0])); +# endif + 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_strstr(ap->exec_argv[i], "{}"); + IF_FEATURE_FIND_EXEC_PLUS(all_subst += ap->subst_count[i];) + } +# if ENABLE_FEATURE_FIND_EXEC_PLUS + /* + * coreutils expects {} to appear only once in "-exec +" + */ + if (all_subst != 1 && ap->filelist) + bb_error_msg_and_die("only one '{}' allowed for -exec +"); +# endif + } +#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 (parm == PARM_type) { + 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_EXECUTABLE + else if (parm == PARM_executable) { + (void) ALLOC_ACTION(executable); + } +#endif +#if ENABLE_FEATURE_FIND_PERM +/* -perm BITS File's mode bits are exactly BITS (octal or symbolic). + * Symbolic modes use mode 0 as a point of departure. + * -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 = (arg1[0] == '/' ? arg1+1 : plus_minus_num(arg1)); + /*ap->perm_mask = 0; - ALLOC_ACTION did it */ + ap->perm_mask = bb_parse_mode(arg1, ap->perm_mask); + if (ap->perm_mask == (mode_t)-1) + 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)); + } +#endif +#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)); + } +#endif +#if ENABLE_FEATURE_FIND_NEWER + 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; + } +#endif +#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); + } +#endif +#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_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); + } +#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; + dbg("%d", __LINE__); + ap = ALLOC_ACTION(size); + 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 { + bb_error_msg("unrecognized: %s", arg); + bb_show_usage(); + } + argv++; + } + dbg("exiting %s", __func__); + return appp; +#undef ALLOC_ACTION +#undef appp +#undef cur_action +#undef invert_flag +} + +int find_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int find_main(int argc UNUSED_PARAM, char **argv) +{ + int i, firstopt; + char **past_HLP, *saved; + + INIT_G(); + + /* "find -type f" + getopt("+HLP") => disaster. + * Need to avoid getopt running into a non-HLP option. + * Do this by temporarily storing NULL there: + */ + past_HLP = argv; + for (;;) { + saved = *++past_HLP; + if (!saved) + break; + if (saved[0] != '-') + break; + if (!saved[1]) + break; /* it is "-" */ + if ((saved+1)[strspn(saved+1, "HLP")] != '\0') + break; + } + *past_HLP = NULL; + /* "+": stop on first non-option */ + i = getopt32(argv, "+HLP"); + if (i & (1<<0)) + G.recurse_flags |= ACTION_FOLLOWLINKS_L0 | ACTION_DANGLING_OK; + if (i & (1<<1)) + G.recurse_flags |= ACTION_FOLLOWLINKS | ACTION_DANGLING_OK; + /* -P is default and is ignored */ + argv = past_HLP; /* same result as "argv += optind;" */ + *past_HLP = saved; + + for (firstopt = 0; argv[firstopt]; firstopt++) { + if (argv[firstopt][0] == '-') break; - else + if (ENABLE_FEATURE_FIND_NOT && LONE_CHAR(argv[firstopt], '!')) break; + if (ENABLE_FEATURE_FIND_PAREN && LONE_CHAR(argv[firstopt], '(')) + break; + } + if (firstopt == 0) { + *--argv = (char*)"."; + firstopt++; } - if (recursiveAction(directory, TRUE, FALSE, FALSE, - fileAction, fileAction) == FALSE) { - exit(FALSE); + G.actions = parse_params(&argv[firstopt]); + argv[firstopt] = NULL; + +#if ENABLE_FEATURE_FIND_XDEV + 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 + + for (i = 0; argv[i]; i++) { + if (!recursive_action(argv[i], + G.recurse_flags,/* flags */ + fileAction, /* file action */ + fileAction, /* dir action */ + NULL, /* user data */ + 0) /* depth */ + ) { + G.exitstatus |= EXIT_FAILURE; + } } - exit(TRUE); + IF_FEATURE_FIND_EXEC_PLUS(G.exitstatus |= flush_exec_plus();) + return G.exitstatus; }