Reworked find with David Douthitt to support -type, -perm, -mtime, and
other improvements.
This commit is contained in:
Matt Kraai
parent
a164c647ac
commit
096370d349
9
Config.h
9
Config.h
@ -309,6 +309,15 @@
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// Support for human readable output by ls, du, etc.(example 13k, 23M, 235G)
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#define BB_FEATURE_HUMAN_READABLE
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//
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// Support for the find -type option.
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#define BB_FEATURE_FIND_TYPE
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//
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// Support for the find -perm option.
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#define BB_FEATURE_FIND_PERM
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//
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// Support for the find -mtine option.
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#define BB_FEATURE_FIND_MTIME
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//
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// End of Features List
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//
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//
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@ -377,7 +377,15 @@ const char find_usage[] =
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"\nEXPRESSION may consist of:\n"
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"\t-follow\t\tDereference symbolic links.\n"
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"\t-name PATTERN\tFile name (leading directories removed) matches PATTERN.\n"
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"\t-print\t\tprint the full file name followed by a newline to stdout."
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#ifdef BB_FEATURE_FIND_TYPE
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"\t-type X\t\tFiletype matches X (where X is one of: f,d,l,b,c,...)\n"
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#endif
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#ifdef BB_FEATURE_FIND_PERM
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"\t-perm PERMS\tPermissions match any of (+NNN); all of (-NNN); or exactly (NNN)\n"
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#endif
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#ifdef BB_FEATURE_FIND_MTIME
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"\t-mtime TIME\tModified time is greater than (+N); less than (-N); or exactly (N) days\n"
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#endif
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#endif
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;
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#endif
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196
find.c
196
find.c
@ -5,6 +5,8 @@
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*
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* Copyright (C) 1999,2000,2001 by Lineo, inc.
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* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
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* Reworked by David Douthitt <n9ubh@callsign.net> and
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* Matt Kraai <kraai@alumni.carnegiemellon.edu>.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -28,82 +30,168 @@
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#include <dirent.h>
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#include <string.h>
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#include <stdlib.h>
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#include <fnmatch.h>
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#include <time.h>
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#include <ctype.h>
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static char *pattern = NULL;
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static char *directory = ".";
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static int dereferenceFlag = FALSE;
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static char *pattern;
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#ifdef BB_FEATURE_FIND_TYPE
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static int type_mask = 0;
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#endif
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#ifdef BB_FEATURE_FIND_PERM
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static char perm_char = 0;
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static int perm_mask = 0;
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#endif
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#ifdef BB_FEATURE_FIND_MTIME
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static char mtime_char;
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static int mtime_days;
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#endif
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static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
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{
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if (pattern == NULL)
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puts(fileName);
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else {
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char *tmp = strrchr(fileName, '/');
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if (pattern != NULL) {
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const char *tmp = strrchr(fileName, '/');
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if (tmp == NULL)
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tmp = (char *) fileName;
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tmp = fileName;
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else
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tmp++;
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if (check_wildcard_match(tmp, pattern) == TRUE)
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puts(fileName);
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if (!(fnmatch(pattern, tmp, FNM_PERIOD) == 0))
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goto no_match;
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}
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#ifdef BB_FEATURE_FIND_TYPE
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if (type_mask != 0) {
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if (!((statbuf->st_mode & S_IFMT) == type_mask))
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goto no_match;
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}
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#endif
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#ifdef BB_FEATURE_FIND_PERM
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if (perm_mask != 0) {
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if (!((isdigit(perm_char) && (statbuf->st_mode & 07777) == perm_mask) ||
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(perm_char == '-' && (statbuf->st_mode & perm_mask) == perm_mask) ||
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(perm_char == '+' && (statbuf->st_mode & perm_mask) != 0)))
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goto no_match;
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}
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#endif
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#ifdef BB_FEATURE_FIND_MTIME
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if (mtime_days != 0) {
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time_t file_age = time(NULL) - statbuf->st_mtime;
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time_t mtime_secs = mtime_days * 24 * 60 * 60;
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if (!((isdigit(mtime_char) && mtime_secs >= file_age &&
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mtime_secs < file_age + 24 * 60 * 60) ||
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(mtime_char == '+' && mtime_secs >= file_age) ||
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(mtime_char == '-' && mtime_secs < file_age)))
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goto no_match;
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}
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#endif
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puts(fileName);
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no_match:
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return (TRUE);
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}
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#ifdef BB_FEATURE_FIND_TYPE
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static int find_type(char *type)
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{
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int mask = 0;
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switch (type[0]) {
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case 'b':
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mask = S_IFBLK;
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break;
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case 'c':
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mask = S_IFCHR;
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break;
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case 'd':
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mask = S_IFDIR;
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break;
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case 'p':
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mask = S_IFIFO;
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break;
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case 'f':
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mask = S_IFREG;
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break;
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case 'l':
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mask = S_IFLNK;
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break;
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case 's':
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mask = S_IFSOCK;
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break;
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}
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if (mask == 0 || type[1] != '\0')
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error_msg_and_die("invalid argument `%s' to `-type'", type);
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return mask;
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}
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#endif
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int find_main(int argc, char **argv)
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{
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/* peel off the "find" */
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argc--;
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argv++;
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int dereference = FALSE;
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int i, firstopt, status = EXIT_SUCCESS;
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if (argc > 0 && **argv != '-') {
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directory = *argv;
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argc--;
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argv++;
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for (firstopt = 1; firstopt < argc; firstopt++) {
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if (argv[firstopt][0] == '-')
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break;
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}
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/* Parse any options */
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while (argc > 0 && **argv == '-') {
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int stopit = FALSE;
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while (*++(*argv) && stopit == FALSE)
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switch (**argv) {
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case 'f':
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if (strcmp(*argv, "follow") == 0) {
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argc--;
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argv++;
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dereferenceFlag = TRUE;
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for (i = firstopt; i < argc; i++) {
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if (strcmp(argv[i], "-follow") == 0)
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dereference = TRUE;
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else if (strcmp(argv[i], "-name") == 0) {
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if (++i == argc)
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error_msg_and_die("option `-name' requires an argument");
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pattern = argv[i];
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#ifdef BB_FEATURE_FIND_TYPE
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} else if (strcmp(argv[i], "-type") == 0) {
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if (++i == argc)
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error_msg_and_die("option `-type' requires an argument");
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type_mask = find_type(argv[i]);
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#endif
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#ifdef BB_FEATURE_FIND_PERM
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} else if (strcmp(argv[i], "-perm") == 0) {
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char *end;
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if (++i == argc)
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error_msg_and_die("option `-perm' requires an argument");
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perm_mask = strtol(argv[i], &end, 8);
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if (end[0] != '\0')
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error_msg_and_die("invalid argument `%s' to `-perm'", argv[i]);
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if (perm_mask > 07777)
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error_msg_and_die("invalid argument `%s' to `-perm'", argv[i]);
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if ((perm_char = argv[i][0]) == '-')
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perm_mask = -perm_mask;
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#endif
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#ifdef BB_FEATURE_FIND_MTIME
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} else if (strcmp(argv[i], "-mtime") == 0) {
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char *end;
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if (++i == argc)
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error_msg_and_die("option `-mtime' requires an argument");
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mtime_days = strtol(argv[i], &end, 10);
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if (end[0] != '\0')
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error_msg_and_die("invalid argument `%s' to `-mtime'", argv[i]);
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if ((mtime_char = argv[i][0]) == '-')
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mtime_days = -mtime_days;
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#endif
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} else
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usage(find_usage);
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}
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break;
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case 'n':
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if (strcmp(*argv, "name") == 0) {
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if (argc-- > 1) {
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pattern = *(++argv);
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stopit = TRUE;
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if (firstopt == 1) {
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if (recursive_action(".", TRUE, dereference, FALSE, fileAction,
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fileAction, NULL) == FALSE)
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status = EXIT_FAILURE;
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} else {
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usage(find_usage);
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for (i = 1; i < firstopt; i++) {
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if (recursive_action(argv[i], TRUE, dereference, FALSE, fileAction,
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fileAction, NULL) == FALSE)
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status = EXIT_FAILURE;
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}
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}
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break;
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case '-':
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/* Ignore all long options */
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break;
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default:
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usage(find_usage);
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}
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if (argc-- > 1)
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argv++;
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if (**argv != '-')
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break;
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else
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break;
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}
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if (recursive_action(directory, TRUE, FALSE, FALSE,
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fileAction, fileAction, NULL) == FALSE) {
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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return status;
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}
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196
findutils/find.c
196
findutils/find.c
@ -5,6 +5,8 @@
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*
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* Copyright (C) 1999,2000,2001 by Lineo, inc.
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* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
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* Reworked by David Douthitt <n9ubh@callsign.net> and
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* Matt Kraai <kraai@alumni.carnegiemellon.edu>.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -28,82 +30,168 @@
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#include <dirent.h>
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#include <string.h>
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#include <stdlib.h>
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#include <fnmatch.h>
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#include <time.h>
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#include <ctype.h>
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static char *pattern = NULL;
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static char *directory = ".";
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static int dereferenceFlag = FALSE;
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static char *pattern;
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#ifdef BB_FEATURE_FIND_TYPE
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static int type_mask = 0;
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#endif
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#ifdef BB_FEATURE_FIND_PERM
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static char perm_char = 0;
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static int perm_mask = 0;
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#endif
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#ifdef BB_FEATURE_FIND_MTIME
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static char mtime_char;
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static int mtime_days;
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#endif
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static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
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{
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if (pattern == NULL)
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puts(fileName);
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else {
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char *tmp = strrchr(fileName, '/');
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if (pattern != NULL) {
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const char *tmp = strrchr(fileName, '/');
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if (tmp == NULL)
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tmp = (char *) fileName;
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tmp = fileName;
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else
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tmp++;
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if (check_wildcard_match(tmp, pattern) == TRUE)
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puts(fileName);
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if (!(fnmatch(pattern, tmp, FNM_PERIOD) == 0))
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goto no_match;
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}
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#ifdef BB_FEATURE_FIND_TYPE
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if (type_mask != 0) {
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if (!((statbuf->st_mode & S_IFMT) == type_mask))
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goto no_match;
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}
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#endif
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#ifdef BB_FEATURE_FIND_PERM
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if (perm_mask != 0) {
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if (!((isdigit(perm_char) && (statbuf->st_mode & 07777) == perm_mask) ||
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(perm_char == '-' && (statbuf->st_mode & perm_mask) == perm_mask) ||
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(perm_char == '+' && (statbuf->st_mode & perm_mask) != 0)))
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goto no_match;
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}
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#endif
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#ifdef BB_FEATURE_FIND_MTIME
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if (mtime_days != 0) {
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time_t file_age = time(NULL) - statbuf->st_mtime;
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time_t mtime_secs = mtime_days * 24 * 60 * 60;
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if (!((isdigit(mtime_char) && mtime_secs >= file_age &&
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mtime_secs < file_age + 24 * 60 * 60) ||
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(mtime_char == '+' && mtime_secs >= file_age) ||
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(mtime_char == '-' && mtime_secs < file_age)))
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goto no_match;
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}
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#endif
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puts(fileName);
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no_match:
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return (TRUE);
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}
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#ifdef BB_FEATURE_FIND_TYPE
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static int find_type(char *type)
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{
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int mask = 0;
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switch (type[0]) {
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case 'b':
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mask = S_IFBLK;
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break;
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case 'c':
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mask = S_IFCHR;
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break;
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case 'd':
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mask = S_IFDIR;
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break;
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case 'p':
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mask = S_IFIFO;
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break;
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case 'f':
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mask = S_IFREG;
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break;
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case 'l':
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mask = S_IFLNK;
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break;
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case 's':
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mask = S_IFSOCK;
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break;
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}
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if (mask == 0 || type[1] != '\0')
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error_msg_and_die("invalid argument `%s' to `-type'", type);
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return mask;
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}
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#endif
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int find_main(int argc, char **argv)
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{
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/* peel off the "find" */
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argc--;
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argv++;
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int dereference = FALSE;
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int i, firstopt, status = EXIT_SUCCESS;
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|
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if (argc > 0 && **argv != '-') {
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directory = *argv;
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argc--;
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argv++;
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for (firstopt = 1; firstopt < argc; firstopt++) {
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if (argv[firstopt][0] == '-')
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break;
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}
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/* Parse any options */
|
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while (argc > 0 && **argv == '-') {
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int stopit = FALSE;
|
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|
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while (*++(*argv) && stopit == FALSE)
|
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switch (**argv) {
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case 'f':
|
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if (strcmp(*argv, "follow") == 0) {
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argc--;
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argv++;
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dereferenceFlag = TRUE;
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for (i = firstopt; i < argc; i++) {
|
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if (strcmp(argv[i], "-follow") == 0)
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dereference = TRUE;
|
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else if (strcmp(argv[i], "-name") == 0) {
|
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if (++i == argc)
|
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error_msg_and_die("option `-name' requires an argument");
|
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pattern = argv[i];
|
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#ifdef BB_FEATURE_FIND_TYPE
|
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} else if (strcmp(argv[i], "-type") == 0) {
|
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if (++i == argc)
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error_msg_and_die("option `-type' requires an argument");
|
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type_mask = find_type(argv[i]);
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#endif
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#ifdef BB_FEATURE_FIND_PERM
|
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} else if (strcmp(argv[i], "-perm") == 0) {
|
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char *end;
|
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if (++i == argc)
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error_msg_and_die("option `-perm' requires an argument");
|
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perm_mask = strtol(argv[i], &end, 8);
|
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if (end[0] != '\0')
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error_msg_and_die("invalid argument `%s' to `-perm'", argv[i]);
|
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if (perm_mask > 07777)
|
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error_msg_and_die("invalid argument `%s' to `-perm'", argv[i]);
|
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if ((perm_char = argv[i][0]) == '-')
|
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perm_mask = -perm_mask;
|
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#endif
|
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#ifdef BB_FEATURE_FIND_MTIME
|
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} else if (strcmp(argv[i], "-mtime") == 0) {
|
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char *end;
|
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if (++i == argc)
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error_msg_and_die("option `-mtime' requires an argument");
|
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mtime_days = strtol(argv[i], &end, 10);
|
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if (end[0] != '\0')
|
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error_msg_and_die("invalid argument `%s' to `-mtime'", argv[i]);
|
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if ((mtime_char = argv[i][0]) == '-')
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mtime_days = -mtime_days;
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#endif
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} else
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usage(find_usage);
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}
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break;
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case 'n':
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if (strcmp(*argv, "name") == 0) {
|
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if (argc-- > 1) {
|
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pattern = *(++argv);
|
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stopit = TRUE;
|
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|
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if (firstopt == 1) {
|
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if (recursive_action(".", TRUE, dereference, FALSE, fileAction,
|
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fileAction, NULL) == FALSE)
|
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status = EXIT_FAILURE;
|
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} else {
|
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usage(find_usage);
|
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for (i = 1; i < firstopt; i++) {
|
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if (recursive_action(argv[i], TRUE, dereference, FALSE, fileAction,
|
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fileAction, NULL) == FALSE)
|
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status = EXIT_FAILURE;
|
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}
|
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}
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break;
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case '-':
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||||
/* Ignore all long options */
|
||||
break;
|
||||
default:
|
||||
usage(find_usage);
|
||||
}
|
||||
if (argc-- > 1)
|
||||
argv++;
|
||||
if (**argv != '-')
|
||||
break;
|
||||
else
|
||||
break;
|
||||
}
|
||||
|
||||
if (recursive_action(directory, TRUE, FALSE, FALSE,
|
||||
fileAction, fileAction, NULL) == FALSE) {
|
||||
return EXIT_FAILURE;
|
||||
}
|
||||
|
||||
return EXIT_SUCCESS;
|
||||
return status;
|
||||
}
|
||||
|
||||
10
usage.c
10
usage.c
@ -377,7 +377,15 @@ const char find_usage[] =
|
||||
"\nEXPRESSION may consist of:\n"
|
||||
"\t-follow\t\tDereference symbolic links.\n"
|
||||
"\t-name PATTERN\tFile name (leading directories removed) matches PATTERN.\n"
|
||||
"\t-print\t\tprint the full file name followed by a newline to stdout."
|
||||
#ifdef BB_FEATURE_FIND_TYPE
|
||||
"\t-type X\t\tFiletype matches X (where X is one of: f,d,l,b,c,...)\n"
|
||||
#endif
|
||||
#ifdef BB_FEATURE_FIND_PERM
|
||||
"\t-perm PERMS\tPermissions match any of (+NNN); all of (-NNN); or exactly (NNN)\n"
|
||||
#endif
|
||||
#ifdef BB_FEATURE_FIND_MTIME
|
||||
"\t-mtime TIME\tModified time is greater than (+N); less than (-N); or exactly (N) days\n"
|
||||
#endif
|
||||
#endif
|
||||
;
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user