diff options
Diffstat (limited to 'core/head.c')
-rw-r--r-- | core/head.c | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/core/head.c b/core/head.c deleted file mode 100644 index 236c74d..0000000 --- a/core/head.c +++ /dev/null @@ -1,92 +0,0 @@ -/* head - copy the first part of files - * 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 <fcntl.h> -#include <unistd.h> -#include <stdio.h> -#include <errno.h> -#include <string.h> -#include <stdlib.h> -#include "version.h" - -#ifndef COMPILETIME -#define COMPILETIME -#endif - -/* Functions Prototypes */ -int getopt(int argc, char *const argv[], const char *optstring); -void printUsage(); - -int main(int argc, char *const argv[]) { - int argument, i = 1, lines, lines_printed; - FILE *file; - - char s[4096]; - - while ((argument = getopt(argc, argv, "n:")) != -1) { - if (argument == '?' || argument == ':') { - printUsage(); - return 1; - } - else if (argument == 'n') { - lines = strtol(optarg, NULL, 10); - if (errno) return errno; - } - else - lines = 10; - } - if (argc < 2) { - while (read(STDIN_FILENO, s, 4096) > 0) - printf("%s", s); - } - if (!lines) lines = 10; - for (i = 1; i != argc; i++) { - if (strcmp(argv[i], "-n")) { - if (strcmp(argv[i], "-")) file = fopen(argv[i], "r"); - else while (read(STDIN_FILENO, s, 4096) > 0) printf("%s", s); - if (file == NULL) return errno; /* Something went wrong */ - for (lines_printed = 1; lines_printed <= lines; lines_printed++) { - if (fgets(s, 4096, file) != NULL) - printf("%s", s); - else if (errno) return errno; - } - fclose(file); - } - else i++; - } - return 0; -} - -void printUsage() { - printf("Ferass' Base System. (%s)\n\n" - "Usage: head [-n number] [file]\n\n" - "Copy file to standard output until <number> lines.\n\n" - "\t-n number\tNumber of lines to be copied to standard output\n", - COMPILETIME); -} |