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73 lines
2.1 KiB
Raku
73 lines
2.1 KiB
Raku
/* 4.t
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- read of descriptor without read permission (4.t)
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- write to descriptor without write permission (4.t)
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- check that O_APPEND writes actually append
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*/
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#include "aio_setup.h"
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#define SIZE 512
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#define READ 'r'
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#define WRITE 'w'
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int attempt(int fd, void *buf, int count, long long pos, int rw, int expect)
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{
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struct iocb iocb;
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int res;
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switch(rw) {
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case READ: io_prep_pread (&iocb, fd, buf, count, pos); break;
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case WRITE: io_prep_pwrite(&iocb, fd, buf, count, pos); break;
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}
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printf("expect %3d: (%c), res = ", expect, rw);
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fflush(stdout);
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res = sync_submit(&iocb);
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printf("%3d [%s]%s\n", res, (res <= 0) ? strerror(-res) : "Success",
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(res != expect) ? " -- FAILED" : "");
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if (res != expect)
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return 1;
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return 0;
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}
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int test_main(void)
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{
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char buf[SIZE];
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int rofd, wofd, rwfd;
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int status = 0, res;
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memset(buf, 0, SIZE);
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rofd = open("testdir/rofile", O_RDONLY); assert(rofd != -1);
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wofd = open("testdir/wofile", O_WRONLY); assert(wofd != -1);
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rwfd = open("testdir/rwfile", O_RDWR); assert(rwfd != -1);
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status |= attempt(rofd, buf, SIZE, 0, WRITE, -EBADF);
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status |= attempt(wofd, buf, SIZE, 0, READ, -EBADF);
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status |= attempt(rwfd, buf, SIZE, 0, WRITE, SIZE);
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status |= attempt(rwfd, buf, SIZE, 0, READ, SIZE);
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status |= attempt(rwfd, buf, SIZE, -1, READ, -EINVAL);
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status |= attempt(rwfd, buf, SIZE, -1, WRITE, -EINVAL);
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rwfd = open("testdir/rwfile", O_RDWR|O_APPEND); assert(rwfd != -1);
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res = ftruncate(rwfd, 0); assert(res == 0);
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status |= attempt(rwfd, buf, SIZE, 0, READ, 0);
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status |= attempt(rwfd, "1234", 4, 0, WRITE, 4);
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status |= attempt(rwfd, "5678", 4, 0, WRITE, 4);
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memset(buf, 0, SIZE);
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status |= attempt(rwfd, buf, SIZE, 0, READ, 8);
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printf("read after append: [%s]\n", buf);
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assert(memcmp(buf, "12345678", 8) == 0);
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status |= attempt(rwfd, KERNEL_RW_POINTER, SIZE, 0, READ, -EFAULT);
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status |= attempt(rwfd, KERNEL_RW_POINTER, SIZE, 0, WRITE, -EFAULT);
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/* Some architectures map the 0 page. Ugh. */
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#if !defined(__ia64__)
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status |= attempt(rwfd, NULL, SIZE, 0, WRITE, -EFAULT);
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#endif
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return status;
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}
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