| /* |
| * line - read one line |
| * |
| * Gunnar Ritter, Freiburg i. Br., Germany, December 2000. |
| * |
| * Public Domain. |
| */ |
| |
| /* |
| * This command is deprecated. The utility is in maintenance mode, |
| * meaning we keep them in source tree for backward compatibility |
| * only. Do not waste time making this command better, unless the |
| * fix is about security or other very critical issue. |
| * |
| * See Documentation/deprecated.txt for more information. |
| */ |
| |
| #include <getopt.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| |
| #include "c.h" |
| #include "closestream.h" |
| #include "nls.h" |
| #include "widechar.h" |
| |
| static void __attribute__((__noreturn__)) usage(FILE *out) |
| { |
| fputs(USAGE_HEADER, out); |
| fprintf(out, _(" %s [options]\n"), program_invocation_short_name); |
| |
| fputs(USAGE_SEPARATOR, out); |
| fputs(_("Read one line.\n"), out); |
| |
| fputs(USAGE_OPTIONS, out); |
| fputs(USAGE_HELP, out); |
| fputs(USAGE_VERSION, out); |
| fprintf(out, USAGE_MAN_TAIL("line(1)")); |
| exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| wint_t c; |
| int opt; |
| int status = EXIT_SUCCESS; |
| |
| static const struct option longopts[] = { |
| {"version", no_argument, NULL, 'V'}, |
| {"help", no_argument, NULL, 'h'}, |
| {NULL, 0, NULL, 0} |
| }; |
| |
| setlocale(LC_ALL, ""); |
| bindtextdomain(PACKAGE, LOCALEDIR); |
| textdomain(PACKAGE); |
| atexit(close_stdout); |
| |
| while ((opt = getopt_long(argc, argv, "Vh", longopts, NULL)) != -1) |
| switch (opt) { |
| case 'V': |
| printf(UTIL_LINUX_VERSION); |
| return EXIT_SUCCESS; |
| case 'h': |
| usage(stdout); |
| default: |
| errtryhelp(EXIT_FAILURE); |
| } |
| |
| setvbuf(stdin, NULL, _IONBF, 0); |
| for (;;) { |
| c = getwchar(); |
| if (c == WEOF) { |
| status = EXIT_FAILURE; |
| break; |
| } |
| if (c == '\n') |
| break; |
| putwchar(c); |
| } |
| putwchar(L'\n'); |
| |
| return status; |
| } |