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| #include <stdio.h>
| #include <stdlib.h>
| #include <string.h>
| #include <unistd.h>
|
| #ifndef BUFSIZ
| # define BUFSIZ 4096
| #endif
|
| #undef BUFSIZ
| # define BUFSIZ 64
| int main (void)
| {
| short ibuff[BUFSIZ], obuff[BUFSIZ];
| int rc, i, len;
|
| while ((rc = read (0, ibuff, sizeof (ibuff))) > 0) {
| memset (obuff, 0, sizeof (obuff));
| for (i = 0; i < (rc + 1) / 2; i++) {
| obuff[i] = ibuff[i ^ 1];
| }
|
| len = (rc + 1) & ~1;
|
| if (write (1, obuff, len) != len) {
| perror ("read error");
| return (EXIT_FAILURE);
| }
|
| memset (ibuff, 0, sizeof (ibuff));
| }
|
| if (rc < 0) {
| perror ("read error");
| return (EXIT_FAILURE);
| }
| return (EXIT_SUCCESS);
| }
|
|
