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29 lines
438 B
C
29 lines
438 B
C
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/*
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* fseek.c
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*
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* Christian Groessler, 07-Aug-2000
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <fcntl.h>
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#include "_file.h"
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int fseek(FILE* f, long offset, int whence)
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{
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long res;
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/* Is the file open? */
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if ((f->f_flags & _FOPEN) == 0) {
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_errno = EINVAL; /* File not open */
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return 1;
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}
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res = lseek(f->f_fd, offset, whence);
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if (res == -1L) return 1;
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return 0;
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}
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