51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
#include <kernel/fs/vfs.h>
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#include <kernel/fs/stat.h>
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#include <kernel/devices/earlyterm.h>
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/* vfs_open() - Open file named pathname */
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int vfs_open(FILE *file, char const *pathname, int flags)
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{
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struct dentry *dentry;
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//TODO: handle flags !!
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(void)flags;
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// Get target inode.
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dentry = vfs_dentry_resolve(pathname, 0);
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if (dentry == NULL)
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{
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earlyterm_write("VFS_open() error !\n");
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earlyterm_write("* path error '%s'\n", pathname);
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DBG_WAIT;
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return (-1);
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}
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// Check directory.
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if ((dentry->mode & __S_IFDIR) != 0)
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{
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earlyterm_write("VFS_open(): file type error '%s'\n", pathname);
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DBG_WAIT;
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return (-2);
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}
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//TODO: call FS specific open() primitive ?
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// Debug
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/* earlyterm_write("vfs_open(): inode found !");
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earlyterm_write("* path: %s", pathname);
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earlyterm_write("* name: %s", dentry->name);
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earlyterm_write("* inode: %p", dentry->inode);
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earlyterm_write("* file_op: %p", dentry->dentry_op.file_op);
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DBG_WAIT;*/
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// Update interne dentry counter
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dentry->counter = dentry->counter + 1;
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// Initialize new file.
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file->private = dentry;
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file->permission = dentry->mode & (~__S_IFMT);
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file->file_op = dentry->dentry_op.file_op;
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file->cursor = 0;
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return (0);
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}
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