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text-utils/line.c
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Karel Zak
docs: cleanup public domain license texts
21 фев 2024, 12:13
21 фев 2024, 12:13
3ce8e12
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/* * No copyright is claimed. This code is in the public domain; do with * it what you wish. * * line - read one line * * Gunnar Ritter, Freiburg i. Br., Germany, December 2000. * * 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(void) { FILE *out = stdout; 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); fprintf(out,USAGE_HELP_OPTIONS(16)); fprintf(out, USAGE_MAN_TAIL("line(1)")); exit(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); close_stdout_atexit(); while ((opt = getopt_long(argc, argv, "Vh", longopts, NULL)) != -1) switch (opt) { case 'V': print_version(EXIT_SUCCESS); case 'h': usage(); 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; }