diff options
| -rw-r--r-- | findutils/Config.in | 19 | ||||
| -rw-r--r-- | findutils/find.c | 148 | ||||
| -rw-r--r-- | include/usage.h | 68 |
3 files changed, 151 insertions, 84 deletions
diff --git a/findutils/Config.in b/findutils/Config.in index a32e989..bcdc024 100644 --- a/findutils/Config.in +++ b/findutils/Config.in @@ -57,8 +57,14 @@ config FEATURE_FIND_XDEV default y depends on FIND help - This option will allow find to restrict searches to a single - filesystem. + This option allows find to restrict searches to a single filesystem. + +config FEATURE_FIND_MAXDEPTH + bool "Enable -maxdepth N option" + default y + depends on FIND + help + This option enables -maxdepth N option. config FEATURE_FIND_NEWER bool "Enable -newer option for comparing file mtimes" @@ -149,7 +155,14 @@ config FEATURE_FIND_PATH default y depends on FIND help - The -path option matches whole pathnames instead of just filenames. + The -path option matches whole pathname instead of just filename. + +config FEATURE_FIND_REGEX + bool "Enable -regex: match pathname to regex" + default y + depends on FIND + help + The -regex option matches whole pathname against regular expression. config GREP bool "grep" diff --git a/findutils/find.c b/findutils/find.c index 2d271d2..386bc54 100644 --- a/findutils/find.c +++ b/findutils/find.c @@ -47,6 +47,9 @@ #include <fnmatch.h> #include "libbb.h" +#if ENABLE_FEATURE_FIND_REGEX +#include "xregex.h" +#endif /* This is a NOEXEC applet. Be very careful! */ @@ -66,6 +69,8 @@ typedef struct { #define ACTF(name) static int func_##name(const char *fileName, struct stat *statbuf, action_##name* ap) ACTS(print) ACTS(name, const char *pattern;) +USE_FEATURE_FIND_PATH( ACTS(path, const char *pattern;)) +USE_FEATURE_FIND_REGEX( ACTS(regex, regex_t compiled_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; mode_t perm_mask;)) @@ -80,7 +85,6 @@ USE_FEATURE_FIND_PAREN( ACTS(paren, action ***subexpr;)) USE_FEATURE_FIND_SIZE( ACTS(size, off_t size;)) USE_FEATURE_FIND_PRUNE( ACTS(prune)) USE_FEATURE_FIND_DELETE(ACTS(delete)) -USE_FEATURE_FIND_PATH( ACTS(path, const char *pattern;)) static action ***actions; static bool need_print = 1; @@ -182,6 +186,25 @@ ACTF(name) } return fnmatch(ap->pattern, tmp, FNM_PERIOD) == 0; } +#if ENABLE_FEATURE_FIND_PATH +ACTF(path) +{ + return fnmatch(ap->pattern, fileName, 0) == 0; +} +#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) { @@ -258,21 +281,18 @@ ACTF(exec) 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) { @@ -280,20 +300,23 @@ ACTF(print0) 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) +{ + return statbuf->st_size == ap->size; +} +#endif #if ENABLE_FEATURE_FIND_PRUNE /* * -prune: if -depth is not given, return true and do not descend @@ -306,7 +329,6 @@ ACTF(prune) return SKIP + TRUE; } #endif - #if ENABLE_FEATURE_FIND_DELETE ACTF(delete) { @@ -322,24 +344,16 @@ ACTF(delete) } #endif -#if ENABLE_FEATURE_FIND_PATH -ACTF(path) -{ - return fnmatch(ap->pattern, fileName, 0) == 0; -} -#endif -#if ENABLE_FEATURE_FIND_SIZE -ACTF(size) +static int fileAction(const char *fileName, struct stat *statbuf, void *userData, int depth) { - return statbuf->st_size == ap->size; -} -#endif + int i; +#if ENABLE_FEATURE_FIND_MAXDEPTH + int maxdepth = (int)(ptrdiff_t)userData; + if (depth > maxdepth) return SKIP; +#endif -static int fileAction(const char *fileName, struct stat *statbuf, void* junk, int depth) -{ - int i; #if ENABLE_FEATURE_FIND_XDEV if (S_ISDIR(statbuf->st_mode) && xdev_count) { for (i = 0; i < xdev_count; i++) { @@ -404,6 +418,8 @@ static action*** parse_params(char **argv) PARM_print , USE_FEATURE_FIND_PRINT0(PARM_print0 ,) PARM_name , + USE_FEATURE_FIND_PATH( PARM_path ,) + USE_FEATURE_FIND_REGEX( PARM_regex ,) USE_FEATURE_FIND_TYPE( PARM_type ,) USE_FEATURE_FIND_PERM( PARM_perm ,) USE_FEATURE_FIND_MTIME( PARM_mtime ,) @@ -418,7 +434,6 @@ static action*** parse_params(char **argv) USE_FEATURE_FIND_SIZE( PARM_size ,) USE_FEATURE_FIND_PRUNE( PARM_prune ,) USE_FEATURE_FIND_DELETE(PARM_delete ,) - USE_FEATURE_FIND_PATH( PARM_path ,) #if ENABLE_DESKTOP PARM_and , PARM_or , @@ -433,6 +448,8 @@ static action*** parse_params(char **argv) "-print" , USE_FEATURE_FIND_PRINT0("-print0",) "-name" , + USE_FEATURE_FIND_PATH( "-path" ,) + USE_FEATURE_FIND_REGEX( "-regex" ,) USE_FEATURE_FIND_TYPE( "-type" ,) USE_FEATURE_FIND_PERM( "-perm" ,) USE_FEATURE_FIND_MTIME( "-mtime" ,) @@ -447,7 +464,6 @@ static action*** parse_params(char **argv) USE_FEATURE_FIND_SIZE( "-size" ,) USE_FEATURE_FIND_PRUNE( "-prune" ,) USE_FEATURE_FIND_DELETE("-delete",) - USE_FEATURE_FIND_PATH( "-path" ,) #if ENABLE_DESKTOP "-and" , "-or" , @@ -536,6 +552,24 @@ static action*** parse_params(char **argv) ap = ALLOC_ACTION(name); ap->pattern = arg1; } +#if ENABLE_FEATURE_FIND_PATH + else if (parm == PARM_path) { + action_path *ap; + if (!*++argv) + bb_error_msg_and_die(bb_msg_requires_arg, arg); + ap = ALLOC_ACTION(path); + ap->pattern = arg1; + } +#endif +#if ENABLE_FEATURE_FIND_REGEX + else if (parm == PARM_regex) { + action_regex *ap; + if (!*++argv) + bb_error_msg_and_die(bb_msg_requires_arg, arg); + 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; @@ -678,6 +712,15 @@ static action*** parse_params(char **argv) argv = endarg; } #endif +#if ENABLE_FEATURE_FIND_SIZE + else if (parm == PARM_size) { + action_size *ap; + if (!*++argv) + bb_error_msg_and_die(bb_msg_requires_arg, arg); + ap = ALLOC_ACTION(size); + ap->size = XATOOFF(arg1); + } +#endif #if ENABLE_FEATURE_FIND_PRUNE else if (parm == PARM_prune) { USE_FEATURE_FIND_NOT( invert_flag = 0; ) @@ -691,26 +734,10 @@ static action*** parse_params(char **argv) (void) ALLOC_ACTION(delete); } #endif -#if ENABLE_FEATURE_FIND_PATH - else if (parm == PARM_path) { - action_path *ap; - if (!*++argv) - bb_error_msg_and_die(bb_msg_requires_arg, arg); - ap = ALLOC_ACTION(path); - ap->pattern = arg1; - } -#endif -#if ENABLE_FEATURE_FIND_SIZE - else if (parm == PARM_size) { - action_size *ap; - if (!*++argv) - bb_error_msg_and_die(bb_msg_requires_arg, arg); - ap = ALLOC_ACTION(size); - ap->size = XATOOFF(arg1); - } -#endif - else + else { + bb_error_msg("unrecognized: %s", arg); bb_show_usage(); + } argv++; } return appp; @@ -721,15 +748,24 @@ static action*** parse_params(char **argv) int find_main(int argc, char **argv); int find_main(int argc, char **argv) { - static const char * const options[] = { + static const char *const options[] = { "-follow", -USE_FEATURE_FIND_XDEV( "-xdev", ) +USE_FEATURE_FIND_XDEV( "-xdev" ,) +USE_FEATURE_FIND_MAXDEPTH("-maxdepth",) NULL }; + enum { + OPT_FOLLOW, +USE_FEATURE_FIND_XDEV( OPT_XDEV ,) +USE_FEATURE_FIND_MAXDEPTH(OPT_MAXDEPTH,) + }; char *arg; char **argp; int i, firstopt, status = EXIT_SUCCESS; +#if ENABLE_FEATURE_FIND_MAXDEPTH + int maxdepth = INT_MAX; +#endif for (firstopt = 1; firstopt < argc; firstopt++) { if (argv[firstopt][0] == '-') @@ -750,19 +786,19 @@ USE_FEATURE_FIND_XDEV( "-xdev", ) /* 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 + * 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])) { - i = index_in_str_array(options, arg); - if (i == 0) { /* -follow */ + int opt = index_in_str_array(options, arg); + if (opt == OPT_FOLLOW) { recurse_flags |= ACTION_FOLLOWLINKS; argp[0] = (char*)"-a"; } #if ENABLE_FEATURE_FIND_XDEV - else if (i == 1) { /* -xdev */ + if (opt == OPT_XDEV) { struct stat stbuf; if (!xdev_count) { xdev_count = firstopt - 1; @@ -778,6 +814,16 @@ USE_FEATURE_FIND_XDEV( "-xdev", ) argp[0] = (char*)"-a"; } #endif +#if ENABLE_FEATURE_FIND_MAXDEPTH + if (opt == OPT_MAXDEPTH) { + if (!argp[1]) + bb_show_usage(); + maxdepth = xatoi_u(argp[1]); + argp[0] = (char*)"-a"; + argp[1] = (char*)"-a"; + argp++; + } +#endif argp++; } @@ -788,7 +834,11 @@ USE_FEATURE_FIND_XDEV( "-xdev", ) recurse_flags, /* flags */ fileAction, /* file action */ fileAction, /* dir action */ +#if ENABLE_FEATURE_FIND_MAXDEPTH + (void*)maxdepth,/* user data */ +#else NULL, /* user data */ +#endif 0)) /* depth */ status = EXIT_FAILURE; } diff --git a/include/usage.h b/include/usage.h index 0c02d25..8c438e2 100644 --- a/include/usage.h +++ b/include/usage.h @@ -943,46 +943,50 @@ "the current directory, default EXPRESSION is '-print'\n" \ "\nEXPRESSION may consist of:" \ "\n -follow Dereference symlinks" \ + USE_FEATURE_FIND_XDEV( \ + "\n -xdev Don't descend directories on other filesystems") \ + USE_FEATURE_FIND_MAXDEPTH( \ + "\n -maxdepth N Descend at most N levels. -maxdepth 0 applies" \ + "\n tests/actions to command line arguments only") \ "\n -name PATTERN File name (leading directories removed) matches PATTERN" \ "\n -print Print (default and assumed)" \ USE_FEATURE_FIND_PRINT0( \ "\n -print0 Delimit output with null characters rather than" \ - "\n newlines" \ - ) USE_FEATURE_FIND_TYPE( \ - "\n -type X Filetype matches X (where X is one of: f,d,l,b,c,...)" \ - ) USE_FEATURE_FIND_PERM( \ + "\n newlines") \ + USE_FEATURE_FIND_TYPE( \ + "\n -type X Filetype matches X (where X is one of: f,d,l,b,c,...)") \ + USE_FEATURE_FIND_PERM( \ "\n -perm PERMS Permissions match any of (+NNN), all of (-NNN)," \ - "\n or exactly (NNN)" \ - ) USE_FEATURE_FIND_MTIME( \ + "\n or exactly (NNN)") \ + USE_FEATURE_FIND_MTIME( \ "\n -mtime DAYS Modified time is greater than (+N), less than (-N)," \ - "\n or exactly (N) days" \ - ) USE_FEATURE_FIND_MMIN( \ + "\n or exactly (N) days") \ + USE_FEATURE_FIND_MMIN( \ "\n -mmin MINS Modified time is greater than (+N), less than (-N)," \ - "\n or exactly (N) minutes" \ - ) USE_FEATURE_FIND_NEWER( \ - "\n -newer FILE Modified time is more recent than FILE's" \ - ) USE_FEATURE_FIND_INUM( \ - "\n -inum N File has inode number N" \ - ) USE_FEATURE_FIND_EXEC( \ + "\n or exactly (N) minutes") \ + USE_FEATURE_FIND_NEWER( \ + "\n -newer FILE Modified time is more recent than FILE's") \ + USE_FEATURE_FIND_INUM( \ + "\n -inum N File has inode number N") \ + USE_FEATURE_FIND_EXEC( \ "\n -exec CMD Execute CMD with all instances of {} replaced by the" \ - "\n files matching EXPRESSION" \ - ) USE_FEATURE_FIND_USER( \ - "\n -user NAME File is owned by user NAME (numeric user ID allowed)" \ - ) USE_FEATURE_FIND_GROUP( \ - "\n -group NAME File belongs to group NAME (numeric group ID allowed)" \ - ) USE_FEATURE_FIND_DEPTH( \ - "\n -depth Process directory after traversing it" \ - ) USE_FEATURE_FIND_SIZE( \ - "\n -size N File size is N" \ - ) USE_FEATURE_FIND_PRUNE( \ - "\n -prune Stop traversing current subtree" \ - ) USE_FEATURE_FIND_DELETE( \ - "\n -delete Delete files, turns on -depth option" \ - ) USE_FEATURE_FIND_PATH( \ - "\n -path Path matches PATTERN" \ - ) USE_FEATURE_FIND_PAREN( \ - "\n (EXPR) Group an expression" \ - ) + "\n files matching EXPRESSION") \ + USE_FEATURE_FIND_USER( \ + "\n -user NAME File is owned by user NAME (numeric user ID allowed)") \ + USE_FEATURE_FIND_GROUP( \ + "\n -group NAME File belongs to group NAME (numeric group ID allowed)") \ + USE_FEATURE_FIND_DEPTH( \ + "\n -depth Process directory after traversing it") \ + USE_FEATURE_FIND_SIZE( \ + "\n -size N File size is N") \ + USE_FEATURE_FIND_PRUNE( \ + "\n -prune Stop traversing current subtree") \ + USE_FEATURE_FIND_DELETE( \ + "\n -delete Delete files, turns on -depth option") \ + USE_FEATURE_FIND_PATH( \ + "\n -path Path matches PATTERN") \ + USE_FEATURE_FIND_PAREN( \ + "\n (EXPR) Group an expression") \ #define find_example_usage \ "$ find / -name passwd\n" \ |