84 lines
1.6 KiB
C
84 lines
1.6 KiB
C
/*
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* line - read one line
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*
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* Gunnar Ritter, Freiburg i. Br., Germany, December 2000.
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*
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* Public Domain.
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*/
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/*
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* This command is deprecated. The utility is in maintenance mode,
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* meaning we keep them in source tree for backward compatibility
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* only. Do not waste time making this command better, unless the
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* fix is about security or other very critical issue.
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*
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* See Documentation/deprecated.txt for more information.
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*/
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#include <getopt.h>
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#include <stdio.h>
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#include <unistd.h>
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#include "c.h"
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#include "closestream.h"
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#include "nls.h"
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#include "widechar.h"
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static void __attribute__((__noreturn__)) usage(void)
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{
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FILE *out = stdout;
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fputs(USAGE_HEADER, out);
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fprintf(out, _(" %s [options]\n"), program_invocation_short_name);
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fputs(USAGE_SEPARATOR, out);
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fputs(_("Read one line.\n"), out);
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fputs(USAGE_OPTIONS, out);
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printf(USAGE_HELP_OPTIONS(16));
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printf(USAGE_MAN_TAIL("line(1)"));
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exit(EXIT_SUCCESS);
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}
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int main(int argc, char **argv)
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{
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wint_t c;
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int opt;
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int status = EXIT_SUCCESS;
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static const struct option longopts[] = {
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{"version", no_argument, NULL, 'V'},
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{"help", no_argument, NULL, 'h'},
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{NULL, 0, NULL, 0}
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};
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setlocale(LC_ALL, "");
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bindtextdomain(PACKAGE, LOCALEDIR);
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textdomain(PACKAGE);
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close_stdout_atexit();
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while ((opt = getopt_long(argc, argv, "Vh", longopts, NULL)) != -1)
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switch (opt) {
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case 'V':
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print_version(EXIT_SUCCESS);
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case 'h':
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usage();
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default:
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errtryhelp(EXIT_FAILURE);
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}
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setvbuf(stdin, NULL, _IONBF, 0);
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for (;;) {
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c = getwchar();
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if (c == WEOF) {
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status = EXIT_FAILURE;
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break;
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}
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if (c == '\n')
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break;
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putwchar(c);
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}
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putwchar(L'\n');
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return status;
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}
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