#include "fs.h" #include #include "buf.h" #include "inode.h" #include /*===========================================================================* * fs_newnode * *===========================================================================*/ int fs_newnode(message *fs_m_in, message *fs_m_out) { register int r = OK; pmode_t bits; struct inode *rip; uid_t uid; gid_t gid; dev_t dev; uid = (uid_t) fs_m_in->REQ_UID; gid = (gid_t) fs_m_in->REQ_GID; bits = (pmode_t) fs_m_in->REQ_MODE; dev = fs_m_in->REQ_DEV; /* Try to allocate the inode */ if( (rip = alloc_inode(dev, bits, uid, gid) ) == NULL) return(err_code); switch (bits & S_IFMT) { case S_IFBLK: case S_IFCHR: rip->i_rdev = dev; /* Major/minor dev numbers */ break; case S_IFIFO: if ((get_block(dev, rip->i_num)) == NULL) r = EIO; break; default: r = EIO; /* Unsupported file type */ } if (r != OK) { free_inode(rip); } else { /* Fill in the fields of the response message */ fs_m_out->RES_INODE_NR = rip->i_num; fs_m_out->RES_MODE = rip->i_mode; fs_m_out->RES_FILE_SIZE = rip->i_size; fs_m_out->RES_UID = rip->i_uid; fs_m_out->RES_GID = rip->i_gid; fs_m_out->RES_DEV = dev; } return(r); }