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b701e39fbb
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b8fcbcce94
@ -1,6 +1,5 @@
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#include <stdio.h>
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#include <unistd.h>
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int main(void) {
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puts("\033c");
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return 0;
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return write(1, "\033[H\033[J", 6) != 6;
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}
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@ -1,11 +1,21 @@
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#include <time.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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unsigned int a_flag;
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unsigned int l_flag;
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int list(const char *path, int flag, int label) {
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void PrintPerm(struct stat sb) {
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printf("%c", (S_ISDIR(sb.st_mode)) ? 'd' : '-');
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printf("%c%c%c", (sb.st_mode & S_IRUSR) ? 'r' : '-', (sb.st_mode & S_IWUSR) ? 'w' : '-', (sb.st_mode & S_IXUSR) ? 'x' : '-');
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printf("%c%c%c", (sb.st_mode & S_IRGRP) ? 'r' : '-', (sb.st_mode & S_IWGRP) ? 'w' : '-', (sb.st_mode & S_IXGRP) ? 'x' : '-');
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printf("%c%c%c", (sb.st_mode & S_IROTH) ? 'r' : '-', (sb.st_mode & S_IWOTH) ? 'w' : '-', (sb.st_mode & S_IXOTH) ? 'x' : '-');
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}
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int list(const char *path, int label) {
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struct stat statbuf;
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if (stat(path, &statbuf)) {
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fprintf(stderr, "ls: unable to stat %s: %s\n", path, strerror(errno));
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@ -23,53 +33,77 @@ int list(const char *path, int flag, int label) {
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printf("\n%s: \n", path);
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/* Open and print dir */
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struct dirent *ep;
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DIR *dp = opendir(path);
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if (dp == NULL) {
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fprintf(stderr, "ls: %s: %s\n", path, strerror(errno));
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return 1;
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}
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struct dirent *ep;
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while ((ep = readdir(dp)) != NULL) {
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if (ep->d_name[0] == '.' && !flag)
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if (ep->d_name[0] == '.' && !a_flag)
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continue;
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if (l_flag) {
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struct stat sb;
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if (lstat(ep->d_name, &sb) == -1) {
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fprintf(stderr, "ls: lstat()\n");
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return 1;
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}
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/* Permissions */
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PrintPerm(sb);
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/* Date and other info */
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struct tm *tm = localtime(&sb.st_mtime);
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char date[14];
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if (strftime(date, sizeof(date), "%b %d %H:%M", tm) == 0) {
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fprintf(stderr, "ls: strftime()\n");
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return 1;
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}
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printf(" %jd %jd %s ", (uintmax_t)sb.st_mode, (uintmax_t)sb.st_size, date);
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}
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printf("%s ", ep->d_name);
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printf("\n");
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}
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closedir(dp);
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printf("\n");
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return 0;
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}
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int main(const int argc, const char **argv) {
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int flag = 0;
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int i;
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for (i = 1; i < argc; i++) {
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if (argv[i][0] != '-')
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break;
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else if (!strcmp(argv[i], "-a"))
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flag = 1;
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a_flag = 1;
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else if (!strcmp(argv[i], "-l"))
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l_flag = 1;
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else if (!strcmp(argv[i], "-h")) {
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printf("ls [-a (Show hidden files)] [Path]\n");
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printf("ls [-a (Show hidden files)] [-l (use a long listing format (month / day / hour:min))] [Path]\n");
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return 0;
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}
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}
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if (i == argc)
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return list(".", flag, 0);
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return list(".", 0);
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if (i == argc - 1)
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return list(argv[i], flag, 0);
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return list(argv[i], 0);
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else
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for (int i = 1; i < argc; i++)
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if (list(argv[i], flag, 1))
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if (list(argv[i], 1))
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return 1;
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return 0;
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}
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