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/*
* Copyright 2022 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include <assert.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/uio.h>
#include <unistd.h>
int main() {
int fd = open("testfile", O_CREAT | O_TRUNC | O_RDWR, S_IRWXU);
assert(fd >= 0);
char buf0[16] = "a=1\n";
char buf1[] = "b=2\n";
struct iovec iov[] = {{.iov_base = buf0, .iov_len = 4},
{.iov_base = buf1, .iov_len = 4}};
ssize_t nwritten = pwritev(fd, iov, 2, 0);
assert(nwritten == 8);
size_t nread = read(fd, buf0, sizeof(buf0));
assert(nread == 8);
assert(strcmp(buf0, "a=1\nb=2\n") == 0);
close(fd);
printf("success\n");
return 0;
}
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