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/*
* 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(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);
printf(USAGE_HELP_OPTIONS(16));
printf(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);
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();
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;
}
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