Enrico Fraccaroli
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/// MentOS, The Mentoring Operating system project
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/// @file cmd_newfile.c
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/// @brief
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/// @copyright (c) 2019 This file is distributed under the MIT License.
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/// See LICENSE.md for details.
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#include "commands.h"
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#include "stdio.h"
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#include "fcntl.h"
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#include "string.h"
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#include "unistd.h"
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#include "strerror.h"
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#include <misc/debug.h>
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void cmd_newfile(int argc, char **argv)
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{
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if (argc != 2) {
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printf("%s: missing operand.\n", argv[0]);
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printf("Try '%s --help' for more information.\n\n", argv[0]);
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return;
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}
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if (strcmp(argv[1], "--help") == 0) {
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printf("Makes a new file, and prompt for it's content.\n");
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printf("Usage:\n");
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printf(" %s <filename>\n", argv[0]);
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return;
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}
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char text[256];
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printf("Filename: %s\n", argv[1]);
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int fd = open(argv[1], O_RDWR | O_CREAT | O_APPEND, 0);
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if (fd < 0) {
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printf("%s: Cannot create file '%s': %s\n\n", argv[0], argv[1],
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"unknown" /*strerror(errno)*/);
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return;
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}
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printf("Type one line of text here (new line to complete):\n");
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scanf("%s", text);
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if (write(fd, text, strlen(text)) == -1) {
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printf("%s: Cannot write on file '%s': %s\n\n", argv[0], argv[1],
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"unknown" /*strerror(errno)*/);
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return;
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}
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if (close(fd) == -1) {
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printf("%s: Cannot close file '%s': %s\n\n", argv[0], argv[1],
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"unknown" /*strerror(errno)*/);
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return;
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}
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}
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