28 lines
710 B
C
28 lines
710 B
C
#include <kernel/fs/vfs.h>
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#include <kernel/devices/earlyterm.h>
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ssize_t vfs_read(FILE *file, void *buf, size_t count)
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{
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//TODO: Check permission !!
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// Check error
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if (file == NULL || buf == NULL)
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return (-1);
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// Get / check file's informations
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if (file->private == NULL ||
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file->file_op == NULL ||
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file->file_op->read == NULL)
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return (-1);
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// Check error
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if (file->cursor == 0xffffffff)
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earlyterm_write("pos = %#x\n", file->cursor);
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// Read with FS specifique primitive and return the numbe of reading bytes.
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ssize_t read = file->file_op->read(((struct dentry*)file->private)->inode, buf, count, file->cursor);
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if (read > 0)
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file->cursor = file->cursor + read;
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return (read);
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}
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