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/* @(#)rewind.c 1.4 98/12/19 Connectathon Testsuite */
#if defined (DOS) || defined (WIN32)
#define DOSorWIN32
#include "../tests.h"
#endif
#ifndef DOSorWIN32
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#endif /* DOSorWIN32 */
main()
{
char buffer[8192];
int size = 8192;
int fd;
int i;
off_t off;
#ifdef DOSorWIN32
fprintf(stderr, "This Test Not Executable on DOS or Windows\n");
exit(1);
#else
if ((fd = open("test.file", O_RDWR | O_CREAT, 0666)) == -1) {
perror("open");
exit(1);
}
for (i = 0; i < 3; i++) {
if (write(fd, buffer, size) != size) {
perror("write");
exit(1);
}
}
if ((off = lseek(fd, (off_t)0, SEEK_SET)) != 0) {
printf("file offset=%ld, expected 0\n", (long)off);
exit(1);
}
if (ftruncate(fd, 0)) {
perror("ftruncate");
exit(1);
}
if (write(fd, buffer, 1) != 1) {
perror("write");
exit(1);
}
if ((off = lseek(fd, 0, SEEK_END)) != 1) {
printf("file offset=%ld, expected 1\n", (long)off);
exit(1);
}
close(fd);
exit(0);
#endif /* DOSorWIN32 */
}
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