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4.92.1
store.c
399 строк
15 KB
Masatake YAMATO
Import the final source tree published by Vic, the original lsof maintainer.
23 июл 2018, 06:45
23 июл 2018, 06:45
8662085
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/* * store.c - common global storage for lsof */ /* * Copyright 1994 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 1994 Purdue Research Foundation.\nAll rights reserved.\n"; static char *rcsid = "$Id: store.c,v 1.44 2018/02/14 14:20:14 abe Exp $"; #endif #include "lsof.h" /* * Global storage definitions */ int AllProc = 1; /* all processes are selected (default) */ #if defined(HASBLKDEV) struct l_dev *BDevtp = (struct l_dev *)NULL; /* block device table pointer */ int BNdev = 0; /* number of entries in BDevtp[] */ struct l_dev **BSdev = (struct l_dev **)NULL; /* pointer to BDevtp[] pointers, sorted * by device */ #endif /* defined(HASBLKDEV) */ int CkPasswd = 0; /* time to check /etc/passwd for change */ #if defined(HAS_STD_CLONE) struct clone *Clone = (struct clone *)NULL; /* clone device list */ #endif /* defined(HAS_STD_CLONE) */ int CmdColW; /* COMMAND column width */ struct str_lst *Cmdl = (struct str_lst *)NULL; /* command names selected with -c */ int CmdLim = CMDL; /* COMMAND column width limit */ int Cmdni = 0; /* command name inclusions selected with -c */ int Cmdnx = 0; /* command name exclusions selected with -c */ lsof_rx_t *CmdRx = (lsof_rx_t *)NULL; /* command regular expression table */ #if defined(HASSELINUX) cntxlist_t *CntxArg = (cntxlist_t *)NULL; /* security context arguments supplied with * -Z */ int CntxColW; /* security context column width */ int CntxStatus = 0; /* security context status: 0 == disabled, * 1 == enabled */ #endif /* defined(HASSELINUX) */ #if defined(HASDCACHE) unsigned DCcksum; /* device cache file checksum */ int DCfd = -1; /* device cache file descriptor */ FILE *DCfs = (FILE *)NULL; /* stream pointer for DCfd */ char *DCpathArg = (char *)NULL; /* device cache path from -D[b|r|u]<path> */ char *DCpath[] = { /* device cache paths, indexed by DCpathX *when it's >= 0 */ (char *)NULL, (char *)NULL, (char *)NULL, (char *)NULL }; int DCpathX = -1; /* device cache path index: * -1 = path not defined * 0 = defined via -D * 1 = defined via HASENVDC * 2 = defined via HASSYSDC * 3 = defined via HASPERSDC and * HASPERSDCPATH */ int DCrebuilt = 0; /* an unsafe device cache file has been * rebuilt */ int DCstate = 3; /* device cache state: * 0 = ignore (-Di) * 1 = build (-Db[path]) * 2 = read; don't rebuild (-Dr[path]) * 3 = update; read and rebuild if * necessary (-Du[path]) */ int DCunsafe = 0; /* device cache file is potentially unsafe, * (The [cm]time check failed.) */ #endif /* defined(HASDCACHE) */ int DChelp = 0; /* -D? status */ int DevColW; /* DEVICE column width */ dev_t DevDev; /* device number of /dev or its equivalent */ struct l_dev *Devtp = (struct l_dev *)NULL; /* device table pointer */ /* * Externals for a stkdir(), dumbed-down for older AIX compilers. */ char **Dstk = (char **)NULL; /* the directory stack */ int Dstkx = 0; /* Dstk[] index */ int Dstkn = 0; /* Dstk[] entries allocated */ efsys_list_t *Efsysl = (efsys_list_t *)NULL; /* file systems for which kernel blocks are * to be eliminated */ int ErrStat = 0; /* path stat() error count */ uid_t Euid; /* effective UID of this lsof process */ int Fand = 0; /* -a option status */ int Fblock = 0; /* -b option status */ int FcColW; /* FCT column width */ int Fcntx = 0; /* -Z option status */ int FdColW; /* FD column width */ int FeptE = 0; /* -E option status: 0==none, 1==info, * 2==info+files */ int Ffilesys = 0; /* -f option status: * 0 = paths may be file systems * 1 = paths are just files * 2 = paths must be file systems */ #if defined(HASNCACHE) int Fncache = 1; /* -C option status */ int NcacheReload = 1; /* 1 == call ncache_load() */ #endif /* defined(HASNCACHE) */ int Ffield = 0; /* -f and -F status */ int FgColW; /* FILE-FLAG column width */ int Fhelp = 0; /* -h option status */ int Fhost = 1; /* -H option status */ int Fnet = 0; /* -i option status: 0==none * 1==find all * 2==some found*/ int FnetTy = 0; /* Fnet type request: 0==all * 4==IPv4 * 6==IPv6 */ int Fnfs = 0; /* -N option status: 0==none, 1==find all, * 2==some found*/ int Fnlink = 0; /* -L option status */ int Foffset = 0; /* -o option status */ int Fovhd = 0; /* -O option status */ int Fport = 1; /* -P option status */ #if !defined(HASNORPC_H) # if defined(HASPMAPENABLED) int FportMap = 1; /* +|-M option status */ # else /* !defined(HASPMAPENABLED) */ int FportMap = 0; /* +|-M option status */ # endif /* defined(HASPMAPENABLED) */ #endif /* !defined(HASNORPC_H) */ int Fpgid = 0; /* -g option status */ int Fppid = 0; /* -R option status */ int Fsize = 0; /* -s option status */ int FsColW; /* FSTR-ADDR column width */ int Fsv = FSV_DEFAULT; /* file struct value selections */ int FsvByf = 0; /* Fsv was set by +f */ int FsvFlagX = 0; /* hex format status for FSV_FG */ int Ftask = 0; /* -K option value */ int NiColW; /* NODE-ID column width */ char *NiTtl = NITTL; /* NODE-ID column title */ int Ftcptpi = TCPTPI_STATE; /* -T option status */ int Fterse = 0; /* -t option status */ int Funix = 0; /* -U option status */ int Futol = 1; /* -l option status */ int Fverbose = 0; /* -V option status */ #if defined(WARNINGSTATE) int Fwarn = 1; /* +|-w option status */ #else /* !defined(WARNINGSTATE) */ int Fwarn = 0; /* +|-w option status */ #endif /* defined(WARNINGSTATE) */ #if defined(HASXOPT_VALUE) int Fxopt = HASXOPT_VALUE; /* -X option status */ #endif /* defined(HASXOPT_VALUE) */ int Fxover = 0; /* -x option value */ int Fzone = 0; /* -z option status */ struct fd_lst *Fdl = (struct fd_lst *)NULL; /* file descriptors selected with -d */ int FdlTy = -1; /* Fdl[] type: -1 == none * 0 == include * 1 == exclude */ struct fieldsel FieldSel[] = { { LSOF_FID_ACCESS, 0, LSOF_FNM_ACCESS, NULL, 0 }, /* 0 */ { LSOF_FID_CMD, 0, LSOF_FNM_CMD, NULL, 0 }, /* 1 */ { LSOF_FID_CT, 0, LSOF_FNM_CT, &Fsv, FSV_CT }, /* 2 */ { LSOF_FID_DEVCH, 0, LSOF_FNM_DEVCH, NULL, 0 }, /* 3 */ { LSOF_FID_DEVN, 0, LSOF_FNM_DEVN, NULL, 0 }, /* 4 */ { LSOF_FID_FD, 1, LSOF_FNM_FD, NULL, 0 }, /* 5 */ { LSOF_FID_FA, 0, LSOF_FNM_FA, &Fsv, FSV_FA }, /* 6 */ { LSOF_FID_FG, 0, LSOF_FNM_FG, &Fsv, FSV_FG }, /* 7 */ { LSOF_FID_INODE, 0, LSOF_FNM_INODE, NULL, 0 }, /* 8 */ { LSOF_FID_NLINK, 0, LSOF_FNM_NLINK, &Fnlink, 1 }, /* 9 */ { LSOF_FID_TID, 0, LSOF_FNM_TID, NULL, 0 }, /* 11 */ { LSOF_FID_LOCK, 0, LSOF_FNM_LOCK, NULL, 0 }, /* 11 */ { LSOF_FID_LOGIN, 0, LSOF_FNM_LOGIN, NULL, 0 }, /* 12 */ { LSOF_FID_MARK, 1, LSOF_FNM_MARK, NULL, 0 }, /* 13 */ { LSOF_FID_TCMD, 0, LSOF_FNM_TCMD, NULL, 0 }, /* 14 */ { LSOF_FID_NAME, 0, LSOF_FNM_NAME, NULL, 0 }, /* 15 */ { LSOF_FID_NI, 0, LSOF_FNM_NI, &Fsv, FSV_NI }, /* 16 */ { LSOF_FID_OFFSET, 0, LSOF_FNM_OFFSET, NULL, 0 }, /* 17 */ { LSOF_FID_PID, 1, LSOF_FNM_PID, NULL, 0 }, /* 18 */ { LSOF_FID_PGID, 0, LSOF_FNM_PGID, &Fpgid, 1 }, /* 19 */ { LSOF_FID_PROTO, 0, LSOF_FNM_PROTO, NULL, 0 }, /* 20 */ { LSOF_FID_RDEV, 0, LSOF_FNM_RDEV, NULL, 0 }, /* 21 */ { LSOF_FID_PPID, 0, LSOF_FNM_PPID, &Fppid, 1 }, /* 22 */ { LSOF_FID_SIZE, 0, LSOF_FNM_SIZE, NULL, 0 }, /* 23 */ { LSOF_FID_STREAM, 0, LSOF_FNM_STREAM, NULL, 0 }, /* 24 */ { LSOF_FID_TYPE, 0, LSOF_FNM_TYPE, NULL, 0 }, /* 25 */ { LSOF_FID_TCPTPI, 0, LSOF_FNM_TCPTPI, &Ftcptpi, TCPTPI_ALL }, /* 26 */ { LSOF_FID_UID, 0, LSOF_FNM_UID, NULL, 0 }, /* 27 */ { LSOF_FID_ZONE, 0, LSOF_FNM_ZONE, &Fzone, 1 }, /* 28 */ { LSOF_FID_CNTX, 0, LSOF_FNM_CNTX, &Fcntx, 1 }, /* 29 */ { LSOF_FID_TERM, 0, LSOF_FNM_TERM, NULL, 0 }, /* 30 */ { ' ', 0, NULL, NULL, 0 } }; int Hdr = 0; /* header print status */ int IgnTasks = 0; /* ignore tasks when non-zero */ char *InodeFmt_d = (char *) NULL; /* INODETYPE decimal printf specification */ char *InodeFmt_x = (char *) NULL; /* INODETYPE hexadecimal printf specification */ int LastPid = -1; /* last PID listed (for eliminating duplicates * in terse output) */ struct lfile *Lf = (struct lfile *)NULL; /* current local file structure */ struct lproc *Lp = (struct lproc *)NULL; /* current local process table entry */ struct lproc *Lproc = (struct lproc *)NULL; /* local process table */ int MaxFd; /* maximum file descriptors to close */ char *Memory = (char *)NULL; /* core file path */ int MntSup = 0; /* mount supplement state: 0 == none * 1 == create * 2 == read */ char *MntSupP = (char *)NULL; /* mount supplement path -- if MntSup == 2 */ #if defined(HASPROCFS) struct mounts *Mtprocfs = (struct mounts *)NULL; /* /proc mount entry */ #endif /* defined(HASPROCFS) */ int Mxpgid = 0; /* maximum process group ID table entries */ int Mxpid = 0; /* maximum PID table entries */ int Mxuid = 0; /* maximum UID table entries */ gid_t Mygid; /* real GID of this lsof process */ int Mypid; /* lsof's process ID */ uid_t Myuid; /* real UID of this lsof process */ char *Namech = (char *)NULL; /* name characters for printing */ size_t Namechl = (size_t)0; /* sizeof(Namech) */ int NCmdRxU = 0; /* number of CmdRx[] entries */ int Ndev = 0; /* number of entries in Devtp[] */ #if defined(HASNLIST) struct NLIST_TYPE *Nl = (struct NLIST_TYPE *)NULL; /* kernel name list */ int Nll = 0; /* Nl calloc'd length */ #endif /* defined(HASNLIST) */ long Nlink = 0l; /* report nlink values below this number * (0 = report all nlink values) */ int Nlproc = 0; /* number of entries in Lproc[] */ int NlColW; /* NLINK column width */ int NmColW; /* NAME column width */ char *Nmlst = (char *)NULL; /* namelist file path */ int NodeColW; /* NODE column width */ int Npgid = 0; /* -g option count */ int Npgidi = 0; /* -g option inclusion count */ int Npgidx = 0; /* -g option exclusion count */ int Npid = 0; /* -p option count */ int Npidi = 0; /* -p option inclusion count */ int Npidx = 0; /* -p option exclusion count */ int Npuns; /* number of unselected PIDs (starts at Npid) */ int Ntype; /* node type (see N_* symbols) */ int Nuid = 0; /* -u option count */ int Nuidexcl = 0; /* -u option count of UIDs excluded */ int Nuidincl = 0; /* -u option count of UIDs included */ struct nwad *Nwad = (struct nwad *)NULL; /* list of network addresses */ int OffDecDig = OFFDECDIG; /* offset decimal form (0t...) digit limit */ int OffColW; /* OFFSET column width */ int PgidColW; /* PGID column width */ int PidColW; /* PID column width */ struct lfile *Plf = (struct lfile *)NULL; /* previous local file structure */ char *Pn; /* program name */ int PpidColW; /* PPID column width */ #if defined(HASPROCFS) int Procfind = 0; /* 1 when searching for an proc file system * file and one was found */ struct procfsid *Procfsid = (struct procfsid *)NULL; /* proc file system PID search table */ int Procsrch = 0; /* 1 if searching for any proc file system * file */ #endif /* defined(HASPROCFS) */ int PrPass = 0; /* print pass: 0 = compute column widths * 1 = print */ int RptTm = 0; /* repeat time -- set by -r */ struct l_dev **Sdev = (struct l_dev **)NULL; /* pointer to Devtp[] pointers, sorted * by device */ int SelAll = 0; /* SELALL flags, modified by IgnTasks */ int Selflags = 0; /* selection flags -- see SEL* in lsof.h */ int SelProc = 0; /* SELPROC flags, modified by IgnTasks */ int Setgid = 0; /* setgid state */ int Selinet = 0; /* select only Internet socket files */ int Setuidroot = 0; /* setuid-root state */ struct sfile *Sfile = (struct sfile *)NULL; /* chain of files to search for */ struct int_lst *Spgid = (struct int_lst *)NULL; /* process group IDs to search for */ struct int_lst *Spid = (struct int_lst *)NULL; /* Process IDs to search for */ struct seluid *Suid = (struct seluid *)NULL; /* User IDs to include or exclude */ int SzColW; /* SIZE column width */ int SzOffColW; /* SIZE/OFF column width */ char *SzOffFmt_0t = (char *)NULL; /* SZOFFTYPE 0t%u printf specification */ char *SzOffFmt_d = (char *)NULL; /* SZOFFTYPE %d printf specification */ char *SzOffFmt_dv = (char *)NULL; /* SZOFFTYPE %*d printf specification */ char *SzOffFmt_x = (char *)NULL; /* SZOFFTYPE %#x printf specification */ int TaskCmdColW = 0; /* task command column width */ int TaskCmdLim = TASKCMDL; /* TASKCMD column width limit (same as * CmdLim) */ int TaskPrtCmd = 0; /* task print task command flag */ int TaskPrtTid = 0; /* task print TID flag */ int TcpStAlloc = 0; /* allocated (possibly unused) entries in TCP * state tables */ unsigned char *TcpStI = (unsigned char *)NULL; /* included TCP states */ int TcpStIn = 0; /* number of entries in TcpStI[] */ int TcpStOff = 0; /* offset for TCP state number to adjust * negative numbers to an index into TcpSt[], * TcpStI[] and TcpStX[] */ unsigned char *TcpStX = (unsigned char *)NULL; /* excluded TCP states */ int TcpStXn = 0; /* number of entries in TcpStX[] */ int TcpNstates = 0; /* number of TCP states -- either in * tcpstates[] or TcpSt[] */ char **TcpSt = (char **)NULL; /* local TCP state names, indexed by system * state value */ char Terminator = '\n'; /* output field terminator */ int TaskTidColW = 0; /* task TID column width */ int TmLimit = TMLIMIT; /* Readlink() and stat() timeout (seconds) */ int TypeColW; /* TYPE column width */ int UdpStAlloc = 0; /* allocated (possibly unused) entries in UDP * state tables */ unsigned char *UdpStI = (unsigned char *)NULL; /* included UDP states */ int UdpStIn = 0; /* number of entries in UdpStI[] */ int UdpStOff = 0; /* offset for UDP state number to adjust * negative numbers to an index into UdpSt[], * UdpStI[] and UdpStX[] */ unsigned char *UdpStX = (unsigned char *)NULL; /* excluded UDP states */ int UdpStXn = 0; /* number of entries in UdpStX[] */ int UdpNstates = 0; /* number of UDP states in UdpSt[] */ char **UdpSt = (char **)NULL; /* local UDP state names, indexed by system * state number */ int UserColW; /* USER column width */ #if defined(HASZONES) znhash_t **ZoneArg = (znhash_t **)NULL; /* zone arguments supplied with -z */ #endif /* defined(HASZONES) */ int ZoneColW; /* ZONE column width */