48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
#include "fs.h"
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#include <sys/stat.h>
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#include <unistd.h>
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#include <minix/callnr.h>
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#include <minix/com.h>
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#include "buf.h"
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#include "inode.h"
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#include <minix/vfsif.h>
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/*===========================================================================*
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* fs_newnode *
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*===========================================================================*/
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PUBLIC int fs_newnode()
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{
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register int r = OK;
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mode_t bits;
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struct inode *rip;
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dev_t dev;
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caller_uid = fs_m_in.REQ_UID;
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caller_gid = fs_m_in.REQ_GID;
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bits = fs_m_in.REQ_MODE;
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dev = fs_m_in.REQ_DEV;
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/* Try to allocate the inode */
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if( (rip = alloc_inode(dev, bits) ) == NIL_INODE) return(err_code);
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if ((bits & S_IFMT) != S_IFIFO) {
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r = EIO; /* We only support pipes */
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} else if ((get_block(dev, rip->i_num)) == NIL_BUF)
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r = EIO;
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if (r != OK) {
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free_inode(rip);
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} else {
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/* Fill in the fields of the response message */
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fs_m_out.RES_INODE_NR = rip->i_num;
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fs_m_out.RES_MODE = rip->i_mode;
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fs_m_out.RES_FILE_SIZE_LO = rip->i_size;
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fs_m_out.RES_UID = rip->i_uid;
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fs_m_out.RES_GID = rip->i_gid;
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fs_m_out.RES_DEV = dev;
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}
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return(r);
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}
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