36 lines
832 B
C
36 lines
832 B
C
/* This file is part of the sample code and exercises
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* used by the class "Advanced Programming in the UNIX
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* Environment" taught by Jan Schaumann
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* <jschauma@netmeister.org> at Stevens Institute of
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* Technology.
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*
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* This file is in the public domain.
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*
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* You don't have to, but if you feel like
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* acknowledging where you got this code, you may
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* reference me by name, email address, or point
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* people to the course website:
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* https://stevens.netmeister.org/631/
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*/
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/*
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* This trivial program verifies whether or not STDIN is seekable. Test
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* on a regular file, on a pipe or a fifo.
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*/
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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int
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main(void) {
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if (lseek(STDIN_FILENO, 0, SEEK_CUR) == -1 )
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printf("cannot seek\n");
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else
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printf("seek OK\n");
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return EXIT_SUCCESS;
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}
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