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Diffstat (limited to 'test.c')
| -rw-r--r-- | test.c | 102 |
1 files changed, 102 insertions, 0 deletions
@@ -0,0 +1,102 @@ +/* SPDX-License-Identifier: BSD-3-Clause */ +/* + * Copyright (C) 2022, 2023 Ferass El Hafidi <vitali64pmemail@protonmail.com> + */ +#include <unistd.h> +#include <stdio.h> +#include <errno.h> +#include <string.h> +#include <sys/stat.h> +#include <stdint.h> +#include <string.h> +#include <stdlib.h> + +/* For readability reasons, define true, false */ +int true = 0; +int false = 1; + +#ifdef FASESBOX +int test_main(int argc, char *argv[]) { +#else +int main(int argc, char *argv[]) { +#endif + char param[256]; + struct stat file_status; + + for (int i = 0; i < 256; i++) param[i] = 0; + + if (!strcmp(argv[0], "[")) { + if (strcmp(argv[argc - 1], "]")) { + /* FIXME: Is printing an error message POSIX-compliant? */ + fprintf(stderr, "[: No matching ]\n"); + return 1; + } + argc--; + argv[argc] = 0; + } + + if (argc < 2) return false; + if (!strcmp(argv[1], "!")) { + true = 1; + false = 0; + argc--; + argv++; + } + if (argc == 3) { + param[(uint8_t)argv[1][1]] = argv[1][1]; + /* Files */ + lstat(argv[2], &file_status); + if (!errno) { + if (param['b'] && S_ISBLK(file_status.st_mode) != 0) return true; + else if (param['c'] && S_ISCHR(file_status.st_mode) != 0) return true; + else if (param['d'] && S_ISDIR(file_status.st_mode) != 0) return true; + /* Just return true, if -e is used. If it was false, stat() would + * have failed. If it failed, there's a check about which value + * to return. Return false if -e is used, otherwise, return errno + */ + else if (param['e']) return true; + else if (param['f'] && S_ISREG(file_status.st_mode) != 0) return true; + else if (param['g'] && file_status.st_mode & S_ISGID) return true; + else if ((param['h'] || param['L']) + && S_ISLNK(file_status.st_mode) != 0) return true; + else if (param['p'] && S_ISFIFO(file_status.st_mode) != 0) return true; + /* TODO: Better check for -r/-w. */ + else if (param['r'] && (file_status.st_mode & S_IRUSR + || file_status.st_mode & S_IROTH)) return true; + else if (param['S'] && S_ISSOCK(file_status.st_mode) != 0) return true; + else if (param['s'] && file_status.st_size > 0) return true; + else if (param['u'] && S_ISDIR(file_status.st_mode) + && file_status.st_mode & S_ISUID) return true; + else if (param['w'] && (file_status.st_mode & S_IWUSR + || file_status.st_mode & S_IWOTH)) return true; + else if (param['x'] && (file_status.st_mode & S_IXUSR + || file_status.st_mode & S_IXOTH)) return true; + } + else if (errno && param['e']) return false; + if (param['t']) { + if (isatty(strtol(argv[2], NULL, 10))) return true; + else return false; + } + /* Strings */ + if (param['n'] && strlen(argv[2])) return true; + else if (param['z'] && !strlen(argv[2])) return true; + } + + else if (argc == 4) { + if (!strcmp(argv[2], "=") && !strcmp(argv[1], argv[3])) return true; + else if (!strcmp(argv[2], "!=") && strcmp(argv[1], argv[3])) return true; + else if (!strcmp(argv[2], "-eq") && !strcmp(argv[1], argv[3])) return true; + else if (!strcmp(argv[2], "-ne") && strcmp(argv[1], argv[3])) return true; + else if (!strcmp(argv[2], "-gt") && + strtol(argv[1], NULL, 10) > strtol(argv[3], NULL, 10)) return true; + else if (!strcmp(argv[2], "-ge") && + strtol(argv[1], NULL, 10)>= strtol(argv[3], NULL, 10)) return true; + else if (!strcmp(argv[2], "-lt") && + strtol(argv[1], NULL, 10) < strtol(argv[3], NULL, 10)) return true; + else if (!strcmp(argv[2], "-le") && + strtol(argv[1], NULL, 10)<= strtol(argv[3], NULL, 10)) return true; + } + + /* TODO: Better error handling. */ + return false; +} |