53 lines
1 KiB
C
53 lines
1 KiB
C
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/* Check that the syscalls implementing fdopen work trivially.
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#output: This is the first line of this test.\npass\n
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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void
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perr (const char *s)
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{
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perror (s);
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exit (1);
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}
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int
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main (void)
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{
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FILE *f;
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int fd;
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const char fname[] = "sk1test.dat";
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const char tsttxt1[]
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= "This is the first line of this test.\n";
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char buf[sizeof (tsttxt1)] = "";
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/* Write a line to stdout. */
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f = fdopen (1, "w");
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if (f == NULL
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|| fwrite (tsttxt1, 1, strlen (tsttxt1), f) != strlen (tsttxt1))
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perr ("fdopen or fwrite");
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#if 0
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/* Unfortunately we can't get < /dev/null to the simulator with
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reasonable test-framework surgery. */
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/* Try to read from stdin. Expect EOF. */
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f = fdopen (0, "r");
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if (f == NULL
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|| fread (buf, 1, sizeof (buf), f) != 0
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|| feof (f) == 0
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|| ferror (f) != 0)
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{
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printf ("fail\n");
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exit (1);
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}
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#endif
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printf ("pass\n");
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exit (0);
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}
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