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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 1.41 2013/01/02 17:14:59 abe Exp $";
+#endif
+
+
+#include "lsof.h"
+
+
+/*
+ * Global storage definitions
+ */
+
+#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 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, 0, 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_NAME, 0, LSOF_FNM_NAME, NULL, 0 }, /* 14 */
+ { LSOF_FID_NI, 0, LSOF_FNM_NI, &Fsv, FSV_NI }, /* 15 */
+ { LSOF_FID_OFFSET, 0, LSOF_FNM_OFFSET, NULL, 0 }, /* 16 */
+ { LSOF_FID_PID, 1, LSOF_FNM_PID, NULL, 0 }, /* 17 */
+ { LSOF_FID_PGID, 0, LSOF_FNM_PGID, &Fpgid, 1 }, /* 18 */
+ { LSOF_FID_PROTO, 0, LSOF_FNM_PROTO, NULL, 0 }, /* 19 */
+ { LSOF_FID_RDEV, 0, LSOF_FNM_RDEV, NULL, 0 }, /* 20 */
+ { LSOF_FID_PPID, 0, LSOF_FNM_PPID, &Fppid, 1 }, /* 21 */
+ { LSOF_FID_SIZE, 0, LSOF_FNM_SIZE, NULL, 0 }, /* 22 */
+ { LSOF_FID_STREAM, 0, LSOF_FNM_STREAM, NULL, 0 }, /* 23 */
+ { LSOF_FID_TYPE, 0, LSOF_FNM_TYPE, NULL, 0 }, /* 24 */
+ { LSOF_FID_TCPTPI, 0, LSOF_FNM_TCPTPI, &Ftcptpi, TCPTPI_ALL }, /* 25 */
+ { LSOF_FID_UID, 0, LSOF_FNM_UID, NULL, 0 }, /* 26 */
+ { LSOF_FID_ZONE, 0, LSOF_FNM_ZONE, &Fzone, 1 }, /* 27 */
+ { LSOF_FID_CNTX, 0, LSOF_FNM_CNTX, &Fcntx, 1 }, /* 28 */
+ { LSOF_FID_TERM, 0, LSOF_FNM_TERM, NULL, 0 }, /* 29 */
+ { ' ', 0, NULL, NULL, 0 }
+};
+
+int Hdr = 0; /* header print status */
+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 */
+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 = 1; /* all processes are selected (default) */
+int Selflags = 0; /* selection flags -- see SEL* in lsof.h */
+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 TaskPrtFl = 0; /* task print 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 TidColW = 0; /* 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 */