mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/* Pipe to a Subprocess
|
|
Copyright (C) 1991-2025 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
void
|
|
write_data (FILE * stream)
|
|
{
|
|
int i;
|
|
for (i = 0; i < 100; i++)
|
|
fprintf (stream, "%d\n", i);
|
|
if (ferror (stream))
|
|
{
|
|
fprintf (stderr, "Output to stream failed.\n");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
/*@group*/
|
|
int
|
|
main (void)
|
|
{
|
|
FILE *output;
|
|
|
|
output = popen ("more", "w");
|
|
if (!output)
|
|
{
|
|
fprintf (stderr,
|
|
"incorrect parameters or too many files.\n");
|
|
return EXIT_FAILURE;
|
|
}
|
|
write_data (output);
|
|
if (pclose (output) != 0)
|
|
{
|
|
fprintf (stderr,
|
|
"Could not run more or other error.\n");
|
|
}
|
|
return EXIT_SUCCESS;
|
|
}
|
|
/*@end group*/
|