| /* |
| * dfile.c - SCO OpenServer file processing functions for lsof |
| */ |
| |
| |
| /* |
| * Copyright 1995 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. |
| */ |
| |
| #ifndef lint |
| static char copyright[] = |
| "@(#) Copyright 1995 Purdue Research Foundation.\nAll rights reserved.\n"; |
| static char *rcsid = "$Id: dfile.c,v 1.11 2000/12/04 14:32:49 abe Exp abe $"; |
| #endif |
| |
| #include "lsof.h" |
| |
| |
| /* |
| * get_max_fd() - get maximum file descriptor plus one |
| */ |
| |
| int |
| get_max_fd() |
| { |
| |
| #if defined(F_GETHFDO) || defined(_SC_OPEN_MAX) |
| int nd; |
| #endif /* defined(F_GETHFDO) || defined(_SC_OPEN_MAX) */ |
| |
| #if defined(F_GETHFDO) |
| if ((nd = fcntl(-1, F_GETHFDO, 0)) >= 0) |
| return(nd); |
| #endif /* defined(F_GETHFDO) */ |
| |
| #if defined(_SC_OPEN_MAX) |
| if ((nd = sysconf(_SC_OPEN_MAX)) >= 0) |
| return(nd); |
| #endif /* defined(_SC_OPEN_MAX) */ |
| |
| return(getdtablesize()); |
| } |
| |
| |
| /* |
| * print_dev() - print dev |
| */ |
| |
| char * |
| print_dev(lf, dev) |
| struct lfile *lf; /* file whose device is to be printed */ |
| dev_t *dev; /* device to be printed */ |
| { |
| static char buf[128]; |
| |
| (void) snpf(buf, sizeof(buf), "%d,%d", |
| lf->is_nfs ? ((~(*dev >> 8)) & 0xff) : emajor(*dev), |
| eminor(*dev)); |
| return(buf); |
| } |
| |
| |
| /* |
| * print_ino() - print inode |
| */ |
| |
| char * |
| print_ino(lf) |
| struct lfile *lf; /* file whose device is to be printed */ |
| { |
| static char buf[128]; |
| |
| (void) snpf(buf, sizeof(buf), (lf->inode & 0x80000000) ? "%#x" : "%lu", |
| lf->inode); |
| return(buf); |
| } |
| |
| |
| /* |
| * process_file() - process file |
| */ |
| |
| void |
| process_file(fp) |
| KA_T fp; /* kernel file structure address */ |
| { |
| struct file f; |
| int flag; |
| |
| if (kread(fp, (char *)&f, sizeof(f))) { |
| (void) snpf(Namech, Namechl, "can't read file struct from %s", |
| print_kptr(fp, (char *)NULL, 0)); |
| enter_nm(Namech); |
| return; |
| } |
| Lf->off = (SZOFFTYPE)f.f_offset; |
| |
| if (f.f_count) { |
| |
| /* |
| * Construct access code. |
| */ |
| if ((flag = (f.f_flag & (FREAD | FWRITE))) == FREAD) |
| Lf->access = 'r'; |
| else if (flag == FWRITE) |
| Lf->access = 'w'; |
| else if (flag == (FREAD | FWRITE)) |
| Lf->access = 'u'; |
| /* |
| * Process structure. |
| */ |
| |
| #if defined(HASFSTRUCT) |
| /* |
| * Save file structure values. |
| */ |
| if (Fsv & FSV_CT) { |
| Lf->fct = (long)f.f_count; |
| Lf->fsv |= FSV_CT; |
| } |
| if (Fsv & FSV_FA) { |
| Lf->fsa = fp; |
| Lf->fsv |= FSV_FA; |
| } |
| if (Fsv & FSV_FG) { |
| Lf->ffg = (long)f.f_flag; |
| Lf->fsv |= FSV_FG; |
| } |
| if (Fsv & FSV_NI) { |
| Lf->fna = (KA_T)f.f_inode; |
| Lf->fsv |= FSV_NI; |
| } |
| #endif /* defined(HASFSTRUCT) */ |
| |
| process_node((KA_T)f.f_inode); |
| return; |
| } |
| enter_nm("no more information"); |
| } |