| /* |
| * fino.c -- find inode functions for lsof library |
| */ |
| |
| |
| /* |
| * Copyright 1997 Purdue Research Foundation, West Lafayette, Indiana |
| * 47907. All rights reserved. |
| * |
| * Written by Victor A. Abell |
| * |
| * This software is not subject to any license of the American Telephone |
| * and Telegraph Company or the Regents of the University of California. |
| * |
| * Permission is granted to anyone to use this software for any purpose on |
| * any computer system, and to alter it and redistribute it freely, subject |
| * to the following restrictions: |
| * |
| * 1. Neither the authors nor Purdue University are responsible for any |
| * consequences of the use of this software. |
| * |
| * 2. The origin of this software must not be misrepresented, either by |
| * explicit claim or by omission. Credit to the authors and Purdue |
| * University must appear in documentation and sources. |
| * |
| * 3. Altered versions must be plainly marked as such, and must not be |
| * misrepresented as being the original software. |
| * |
| * 4. This notice may not be removed or altered. |
| */ |
| |
| |
| /* |
| * fino.c -- find block (optional) and character device file inode numbers |
| * |
| * The caller must define: |
| * |
| * HASBLKDEV to activate the block device inode lookup |
| */ |
| |
| |
| #include "../machine.h" |
| |
| #if defined(HASBLKDEV) || defined(USE_LIB_FIND_CH_INO) |
| |
| # if !defined(lint) |
| static char copyright[] = |
| "@(#) Copyright 1997 Purdue Research Foundation.\nAll rights reserved.\n"; |
| static char *rcsid = "$Id: fino.c,v 1.5 2008/10/21 16:12:36 abe Exp $"; |
| # endif /* !defined(lint) */ |
| |
| #include "../lsof.h" |
| |
| #else /* !defined(HASBLKDEV) && !defined(USE_LIB_FIND_CH_INO) */ |
| char fino_d1[] = "d"; char *fino_d2 = fino_d1; |
| #endif /* defined(HASBLKDEV) || defined(USE_LIB_FIND_CH_INO) */ |
| |
| |
| #if defined(HASBLKDEV) |
| /* |
| * find_bl_ino() - find the inode number for a block device file |
| */ |
| |
| void |
| find_bl_ino() |
| { |
| dev_t ldev, tdev; |
| int low, hi, mid; |
| |
| readdev(0); |
| |
| # if defined(HASDCACHE) |
| find_bl_ino_again: |
| # endif /* defined(HASDCACHE) */ |
| |
| low = mid = 0; |
| hi = BNdev - 1; |
| if (!Lf->dev_def || (Lf->dev != DevDev) || !Lf->rdev_def) |
| return; |
| ldev = Lf->rdev; |
| while (low <= hi) { |
| mid = (low + hi) / 2; |
| tdev = BSdev[mid]->rdev; |
| if (ldev < tdev) |
| hi = mid - 1; |
| else if (ldev > tdev) |
| low = mid + 1; |
| else { |
| |
| # if defined(HASDCACHE) |
| if (DCunsafe && !BSdev[mid]->v && !vfy_dev(BSdev[mid])) |
| goto find_bl_ino_again; |
| # endif /* defined(HASDCACHE) */ |
| |
| Lf->inode = BSdev[mid]->inode; |
| if (Lf->inp_ty == 0) |
| Lf->inp_ty = 1; |
| return; |
| } |
| } |
| } |
| #endif /* defined(HASBLKDEV) */ |
| |
| |
| #if defined(USE_LIB_FIND_CH_INO) |
| /* |
| * find_ch_ino() - find the inode number for a character device file |
| */ |
| |
| void |
| find_ch_ino() |
| { |
| dev_t ldev, tdev; |
| int low, hi, mid; |
| |
| readdev(0); |
| |
| # if defined(HASDCACHE) |
| find_ch_ino_again: |
| # endif /* defined(HASDCACHE) */ |
| |
| low = mid = 0; |
| hi = Ndev - 1; |
| if (!Lf->dev_def || (Lf->dev != DevDev) || !Lf->rdev_def) |
| return; |
| ldev = Lf->rdev; |
| while (low <= hi) { |
| mid = (low + hi) / 2; |
| tdev = Sdev[mid]->rdev; |
| if (ldev < tdev) |
| hi = mid - 1; |
| else if (ldev > tdev) |
| low = mid + 1; |
| else { |
| |
| # if defined(HASDCACHE) |
| if (DCunsafe && !Sdev[mid]->v && !vfy_dev(Sdev[mid])) |
| goto find_ch_ino_again; |
| # endif /* defined(HASDCACHE) */ |
| |
| Lf->inode = Sdev[mid]->inode; |
| if (Lf->inp_ty == 0) |
| Lf->inp_ty = 1; |
| return; |
| } |
| } |
| } |
| #endif /* defined(USE_LIB_FIND_CH_INO) */ |