31 lines
584 B
C
31 lines
584 B
C
#include <kernel/fs/vfs.h>
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#include <kernel/fs/file.h>
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#include <fcntl.h>
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/* vfs_lseek() - File cursor management */
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off_t vfs_lseek(FILE *file, off_t offset, int whence)
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{
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// Check potential error.
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if (file == NULL)
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return (-1);
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if (whence == SEEK_SET)
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{
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file->cursor = offset;
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return (file->cursor);
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}
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if (whence == SEEK_CUR)
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{
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file->cursor = file->cursor + offset;
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return (file->cursor);
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}
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if (whence == SEEK_END)
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{
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//TODO: get file size !!
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//TODO: use copy-on-write system !!
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//file->cursor = file->size + offset - 1;
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return (-1);
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}
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return (-1);
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}
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