| 6,8 → 6,21 |
|---|
| * You should apply any license and copyright that you wish to this file, |
| * replacing this header in its entirety. */ |
| |
| /* Extremely primitive 'ls' implementation. Does not sort or stat files, |
| * just here for convenience */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <dirent.h> |
| #include <fcntl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <string.h> |
| |
| #include "errors.h" |
| #include "config.h" |
| #include "util.h" |
| #include "entry.h" |
| #include "ls.h" |
| #include "cmds.h" |
| 14,35 → 27,94 |
|---|
| |
| static char *cmdname = "ls"; |
| |
| unsigned int ls_scope(const char *path) |
| { |
| int fd; |
| DIR *dirp; |
| |
| dirp = opendir(path); |
| if (dirp) { |
| closedir(dirp); |
| return LS_DIR; |
| } |
| |
| fd = open(path, O_RDONLY); |
| if (fd > 0) { |
| close(fd); |
| return LS_FILE; |
| } |
| |
| return LS_BOGUS; |
| } |
| |
| void ls_print(const char *f) |
| { |
| if (ls_scope(f) == LS_FILE) |
| printf("%-40s\n", f); |
| else |
| printf("%-40s <DIR>\n", f); |
| return; |
| } |
| |
| /* Dispays help for ls in various levels */ |
| void * help_cmd_ls(unsigned int level) |
| { |
| printf("This is the %s help for '%s'.\n", |
| level ? EXT_HELP : SHORT_HELP, cmdname); |
| return 0; |
| return CMD_VOID; |
| } |
| |
| /* Main entry point for ls, accepts an array of arguments */ |
| int * cmd_ls(char **argv) |
| { |
| unsigned int argc; |
| unsigned int i; |
| unsigned int scope; |
| char *buff; |
| |
| DIR *dirp; |
| struct dirent *dp; |
| |
| /* Count the arguments */ |
| for (argc = 0; argv[argc] != NULL; argc ++); |
| |
| printf("%s %s\n", TEST_ANNOUNCE, cmdname); |
| printf("%d arguments passed to %s", argc - 1, cmdname); |
| if (argc > 2) { |
| printf("%s - Too many arguments. Try `help %s extended'\n", |
| cmdname, cmdname); |
| return CMD_FAILURE; |
| } |
| |
| if (argc < 2) { |
| printf("\n"); |
| return 0; |
| buff = (char *) malloc(PATH_MAX); |
| if (NULL == buff) { |
| cli_error(CL_ENOMEM, "%s: ", cmdname); |
| return CMD_FAILURE; |
| } |
| memset(buff, 0, sizeof(buff)); |
| |
| printf(":\n"); |
| for (i = 1; i < argc; i++) |
| printf("[%d] -> %s\n", i, argv[i]); |
| if (argc == 1) |
| getcwd(buff, PATH_MAX); |
| else |
| strncpy(buff, argv[1], PATH_MAX); |
| |
| return 0; |
| scope = ls_scope(buff); |
| |
| switch (scope) { |
| case LS_BOGUS: |
| cli_error(CL_ENOENT, buff); |
| free(buff); |
| return CMD_FAILURE; |
| case LS_FILE: |
| ls_print(buff); |
| break; |
| case LS_DIR: |
| dirp = opendir(buff); |
| while ((dp = readdir(dirp))) |
| ls_print(dp->d_name); |
| closedir(dirp); |
| break; |
| } |
| |
| free(buff); |
| |
| return CMD_SUCCESS; |
| |
| } |
| |