aboutsummaryrefslogtreecommitdiff
path: root/core/ls.c
diff options
context:
space:
mode:
Diffstat (limited to 'core/ls.c')
-rw-r--r--core/ls.c270
1 files changed, 0 insertions, 270 deletions
diff --git a/core/ls.c b/core/ls.c
deleted file mode 100644
index 11aa31e..0000000
--- a/core/ls.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/* ls - list files and directories in the given path
- * Copyright (C) 2022 Ferass EL HAFIDI
- * Copyright (C) 2022 Leah Rowe
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the copyright holder nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <unistd.h>
-#include <string.h>
-#include <dirent.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <pwd.h>
-#include <grp.h>
-#include <time.h>
-#include <sys/ioctl.h>
-#include "version.h"
-
-#ifndef COMPILETIME
-#define COMPILETIME
-#endif
-
-char param[256];
-int getopt(int argc, char *const argv[], const char *optstring);
-int ls(char *path);
-void printUsage(char *params);
-
-int main(int argc, char *argv[]) {
- int status = 0;
- int success = 0;
- int argument, i;
- char* params = "aACR1imlpgno";
-
- for(i=0; i<256; i++) {
- param[i]=0;
- }
-
- while ((argument = getopt(argc, argv, params)) != -1) {
- if (argument == '?') {
- printUsage(params);
- return 1;
- }
- param[argument] = argument;
-
- if (argument=='C') {
- param['1'] = 0;
- param['m'] = 0;
- }
- else if (argument=='1' || argument=='g' || argument=='n') {
- param['m'] = 0;
- param['C'] = 0;
- }
- else if (argument=='m') {
- param['1'] = 0;
- param['C'] = 0;
- }
- if (argument=='o' || argument=='n' || argument=='g') {
- param['l'] = 'l';
- }
- }
- if (status) {
- if(!param['1']) printf("\n");
- return status;
- }
-
- if (!param['C'] && !param['m'] && !param['1'])
- param['1'] = '1';
-
- if (param['l'] || param['g']) {
- param['m'] = 0;
- param['C'] = 0;
- param['1'] = '1';
- }
-
- for (i = 1; i < argc; i++) {
- if ((success |= (argv[i][0] != '-' ? 1 : 0))) {
- if (!strcmp(argv[i],".")) status |= ls("./");
- else status |= ls(argv[i]);
- }
- }
-
- i = success ? status : ls("./");
- if(!param['1'])
- printf("\n");
-
- return i;
-}
-
-void printUsage(char *params) {
- printf("Ferass' Base System. (%s)\n\n"
- "Usage: "
- "ls [-%s] [directory] ...\n\n"
- "Print <directory>'s contents to standard output.\n\n"
- "\t-a\tInclude names starting with a dot, including '.' and '..'\n"
- "\t-A\tSame as `-a` but don't include '.' and '..'\n"
- "\t-C\tPrint in columns\n"
- "\t-1\tPrint in lines\n"
- "\t-R\tRecursively list directories\n"
- "\t-i\tFor each file, write its serial number\n"
- "\t-m\tList names followed by a comma and space character\n"
- "\t-l\tDo not follow symbolic links named as operands and "
- "write in long format (unfinished)\n"
- "\t-p\tShow '/' after each name if that name is a directory\n"
- "\t-g\tEnable the -l option but don't print the file owner's name\n"
- "\t-n\tEnable the -l option but print the file owner and group's numeric "
- "UID and GID instead of their name\n"
- "\t-o\tEnable the -l option but don't print the file group's name\n",
- COMPILETIME, params);
-}
-
-int ls(char *path) {
- int file, dotname, cwdname, prevdir, dot;
- long unsigned int cols_used;
- DIR *directory, *subdirectory;
- struct stat file_status;
- struct dirent *dirtree;
- struct winsize columns;
- char *name, file_moddate[256];
- char file_modes[] = "----------";
- directory = opendir(path);
-
- if (param['C']) {
- ioctl(STDOUT_FILENO, TIOCGWINSZ, &columns);
- cols_used = 0;
- }
-
- if (directory == NULL) {
- file = open(path, O_RDONLY);
- if (file == -1) return errno;
- printf("%s\n", path);
- close(file);
- return errno;
- }
-
- if (param['R']) {
- printf("The previous ls -R implementation had so much "
- "flaws that it got removed from the ls codebase.\n");
- return 0;
- }
- while ((dirtree = readdir(directory)) != NULL) {
- name = dirtree->d_name;
-
- cwdname = strcmp(name, ".") ? 0 : 1;
- prevdir = strcmp(name, "..") ? 0 : 1;
- dotname = (name[0]=='.' && !cwdname && !prevdir) ? 1 : 0;
- dot = dotname | prevdir | cwdname;
-
- if (dot && !param['a'] && !param['A']) continue;
- if ((cwdname || prevdir) && param['A']) continue;
-
- if (param['i']) printf("%lu ", dirtree->d_ino);
- if (param['l']) {
- char *fullpath = malloc(strlen(path) + strlen(name) + 2);
- if (fullpath) {
- strcpy(fullpath, path);
- if (path[strlen(path) - 1] != '/') strcat(fullpath, "/");
- strcat(fullpath, name);
- }
- lstat(fullpath, &file_status);
- /* File modes */
- /* File type */
- {
- if (S_ISBLK(file_status.st_mode)) file_modes[0] = 'b';
- else if (S_ISCHR(file_status.st_mode)) file_modes[0] = 'c';
- else if (S_ISDIR(file_status.st_mode)) file_modes[0] = 'd';
- else if (S_ISFIFO(file_status.st_mode)) file_modes[0] = 'p';
- else if (S_ISREG(file_status.st_mode)) file_modes[0] = '-';
- else if (S_ISLNK(file_status.st_mode)) file_modes[0] = 'l';
- else file_modes[0] = 's';
- }
- /* User */
- {
- if (file_status.st_mode & S_IRUSR) file_modes[1] = 'r';
- if (file_status.st_mode & S_IWUSR) file_modes[2] = 'w';
- if (file_status.st_mode & S_IXUSR) file_modes[3] = 'x';
- }
- /* Group */
- {
- if (file_status.st_mode & S_IRGRP) file_modes[4] = 'r';
- if (file_status.st_mode & S_IWGRP) file_modes[5] = 'w';
- if (file_status.st_mode & S_IXGRP) file_modes[6] = 'x';
- }
- /* Others */
- {
- if (file_status.st_mode & S_IROTH) file_modes[7] = 'r';
- if (file_status.st_mode & S_IWOTH) file_modes[8] = 'w';
- if (file_status.st_mode & S_IXOTH) file_modes[9] = 'x';
- }
- printf("%s ", file_modes);
- /* Number of links */
- printf("%lu ", file_status.st_nlink);
- /* Owner name/uid */
- if (!param['g'])
- /* This recursiveness is needed for whatever reason,
- * else it doesn't work...
- */
- if (!param['n'])
- printf("%s ", getpwuid(file_status.st_uid)->pw_name);
- if (param['n']) printf("%u ", file_status.st_uid);
- /* Group name/gid */
- if (!param['o'])
- if (!param['n']) printf("%s ", getgrgid(file_status.st_gid)->gr_name);
- if (param['n']) printf("%u ", file_status.st_gid);
- /* Size of file */
- printf("%lu ", file_status.st_size);
- /* Date and time */
- int strftime_status = strftime(file_moddate, sizeof(file_moddate),
- "%b %e %H:%MM", localtime(&file_status.st_mtime));
- /* It should be st_mtim right? */
- file_moddate[strlen(file_moddate) - 1] = 0; /* Remove newline */
- printf("%s ", strftime_status ? file_moddate : "<strftime() returned 0>");
- free(fullpath);
- }
- printf("%s", name);
- if (param['p']) {
- char *fullpath = malloc(strlen(path) + strlen(name) + 2);
- if (fullpath) {
- strcpy(fullpath, path);
- if (path[strlen(path) - 1] != '/') strcat(fullpath, "/");
- strcat(fullpath, name);
- }
- stat(fullpath, &file_status);
- if (S_ISDIR(file_status.st_mode)) printf("/");
- free(fullpath);
- }
- if (param['C']) {
- if (cols_used < (long unsigned int)((columns.ws_col) / 12)) {
- for (long unsigned int i = strlen(name); i < 11; i++) printf(" ");
- cols_used++;
- }
- if (cols_used == (long unsigned int)((columns.ws_col) / 12)) {
- printf("\n");
- cols_used = 0;
- }
- }
- else if (param['1'])
- printf("\n");
- else if (param['m'])
- printf(", ");
- }
- closedir(directory);
-
- return errno;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-16 20:40:02 +0000