From b5279ecc51ff751ccd052fbb7c20efd529575f7e Mon Sep 17 00:00:00 2001 From: cvs2svn <> Date: Tue, 18 Feb 2014 19:58:41 +0000 Subject: This commit was manufactured by cvs2svn to create tag 'cygwin-pre-user-db'. Sprout from cygwin-1_7_29-release-branchpoint 2014-02-18 19:58:40 UTC cvs2svn 'This commit was manufactured by cvs2svn to create branch 'cygwin-1_7_29' Cherrypick from master 2014-02-08 22:25:11 UTC Corinna Vinschen 'Fix ChangeLog': winsup/cygwin/ChangeLog winsup/cygwin/miscfuncs.cc winsup/cygwin/miscfuncs.h winsup/cygwin/mount.cc Delete: winsup/COPYING winsup/CYGWIN_LICENSE winsup/ChangeLog winsup/Makefile.common winsup/Makefile.in winsup/README winsup/acinclude.m4 winsup/aclocal.m4 winsup/autogen.sh winsup/c++wrap winsup/ccwrap winsup/config.guess winsup/config.sub winsup/configure winsup/configure.ac winsup/configure.cygwin winsup/cygserver/ChangeLog winsup/cygserver/ChangeLog.64bit winsup/cygserver/Makefile.in winsup/cygserver/README winsup/cygserver/aclocal.m4 winsup/cygserver/autogen.sh winsup/cygserver/bsd_helper.cc winsup/cygserver/bsd_helper.h winsup/cygserver/bsd_log.cc winsup/cygserver/bsd_log.h winsup/cygserver/bsd_mutex.cc winsup/cygserver/bsd_mutex.h 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winsup/testsuite/winsup.api/pthread/test.h winsup/testsuite/winsup.api/pthread/threadidafterfork.c winsup/testsuite/winsup.api/pthread/tsd1.c winsup/testsuite/winsup.api/resethand.c winsup/testsuite/winsup.api/samples/sample-fail.c winsup/testsuite/winsup.api/samples/sample-miscompile.c winsup/testsuite/winsup.api/samples/sample-pass.c winsup/testsuite/winsup.api/semtest.c winsup/testsuite/winsup.api/shmtest.c winsup/testsuite/winsup.api/sigchld.c winsup/testsuite/winsup.api/signal-into-win32-api.c winsup/testsuite/winsup.api/systemcall.c winsup/testsuite/winsup.api/user_malloc.c winsup/testsuite/winsup.api/waitpid.c winsup/testsuite/winsup.api/winsup.exp winsup/utils/COPYING.dumper winsup/utils/ChangeLog winsup/utils/ChangeLog-2000 winsup/utils/ChangeLog.64bit winsup/utils/Makefile.in winsup/utils/aclocal.m4 winsup/utils/autogen.sh winsup/utils/bloda.cc winsup/utils/configure winsup/utils/configure.ac winsup/utils/cygcheck.cc winsup/utils/cygpath.cc winsup/utils/cygwin-console-helper.cc winsup/utils/dump_setup.cc winsup/utils/dumper.cc winsup/utils/dumper.h winsup/utils/getconf.c winsup/utils/getfacl.c winsup/utils/kill.cc winsup/utils/ldd.cc winsup/utils/ldh.cc winsup/utils/loadlib.h winsup/utils/locale.cc winsup/utils/minidumper.cc winsup/utils/mkgroup.c winsup/utils/mkpasswd.c winsup/utils/module_info.cc winsup/utils/mount.cc winsup/utils/parse_pe.cc winsup/utils/passwd.c winsup/utils/path.cc winsup/utils/path.h winsup/utils/pldd.c winsup/utils/ps.cc winsup/utils/regtool.cc winsup/utils/setfacl.c winsup/utils/setmetamode.c winsup/utils/ssp.c winsup/utils/ssp.txt winsup/utils/strace.cc winsup/utils/testsuite.cc winsup/utils/testsuite.h winsup/utils/tzset.c winsup/utils/umount.cc winsup/utils/utils.xml winsup/utils/wide_path.h --- winsup/testsuite/libltp/lib/write_log.c | 468 -------------------------------- 1 file changed, 468 deletions(-) delete mode 100644 winsup/testsuite/libltp/lib/write_log.c (limited to 'winsup/testsuite/libltp/lib/write_log.c') diff --git a/winsup/testsuite/libltp/lib/write_log.c b/winsup/testsuite/libltp/lib/write_log.c deleted file mode 100644 index 316dfe79b..000000000 --- a/winsup/testsuite/libltp/lib/write_log.c +++ /dev/null @@ -1,468 +0,0 @@ -/* - * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * - * Further, this software is distributed without any warranty that it is - * free of the rightful claim of any third person regarding infringement - * or the like. Any license provided herein, whether implied or - * otherwise, applies only to this software file. Patent licenses, if - * any, provided herein do not apply to combinations of this program with - * other software, or any other product whatsoever. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write the Free Software Foundation, Inc., 59 - * Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, - * Mountain View, CA 94043, or: - * - * http://www.sgi.com - * - * For further information regarding this notice, see: - * - * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ - */ -/* - * This module contains code for logging writes to files, and for - * perusing the resultant logfile. The main intent of all this is - * to provide a 'write history' of a file which can be examined to - * judge the state of a file (ie. whether it is corrupted or not) based - * on the write activity. - * - * The main abstractions available to the user are the wlog_file, and - * the wlog_rec. A wlog_file is a handle encapsulating a write logfile. - * It is initialized with the wlog_open() function. This handle is - * then passed to the various wlog_xxx() functions to provide transparent - * access to the write logfile. - * - * The wlog_rec datatype is a structure which contains all the information - * about a file write. Examples include the file name, offset, length, - * pattern, etc. In addition there is a bit which is cleared/set based - * on whether or not the write has been confirmed as complete. This - * allows the write logfile to contain information on writes which have - * been initiated, but not yet completed (as in async io). - * - * There is also a function to scan a write logfile in reverse order. - * - * NOTE: For target file analysis based on a write logfile, the - * assumption is made that the file being written to is - * locked from simultaneous access, so that the order of - * write completion is predictable. This is an issue when - * more than 1 process is trying to write data to the same - * target file simultaneously. - * - * The history file created is a collection of variable length records - * described by scruct wlog_rec_disk in write_log.h. See that module for - * the layout of the data on disk. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include "write_log.h" - -#ifndef BSIZE -#ifdef linux -#define BSIZE DEV_BSIZE -#else -#ifdef __CYGWIN__ -#define BSIZE S_BLKSIZE -#else -#define BSIZE BBSIZE -#endif -#endif -#endif - -#ifndef PATH_MAX -#define PATH_MAX 255 -/*#define PATH_MAX pathconf("/", _PC_PATH_MAX)*/ -#endif - -char Wlog_Error_String[256]; - -#if __STDC__ -static int wlog_rec_pack(struct wlog_rec *wrec, char *buf, int flag); -static int wlog_rec_unpack(struct wlog_rec *wrec, char *buf); -#else -static int wlog_rec_pack(); -static int wlog_rec_unpack(); -#endif - -/* - * Initialize a write logfile. wfile is a wlog_file structure that has - * the w_file field filled in. The rest of the information in the - * structure is initialized by the routine. - * - * The trunc flag is used to indicate whether or not the logfile should - * be truncated if it currently exists. If it is non-zero, the file will - * be truncated, otherwise it will be appended to. - * - * The mode argument is the [absolute] mode which the file will be - * given if it does not exist. This mode is not affected by your process - * umask. - */ - -int -wlog_open(wfile, trunc, mode) -struct wlog_file *wfile; -int trunc; -int mode; -{ - int omask, oflags; - - if (trunc) - trunc = O_TRUNC; - - omask = umask(0); - - /* - * Open 1 file descriptor as O_APPEND - */ - - oflags = O_WRONLY | O_APPEND | O_CREAT | trunc; - wfile->w_afd = - open(wfile->w_file, oflags, mode); - umask(omask); - - if (wfile->w_afd == -1) { - sprintf(Wlog_Error_String, - "Could not open write_log - open(%s, %#o, %#o) failed: %s\n", - wfile->w_file, oflags, mode, strerror(errno)); - return -1; - } - - /* - * Open the next fd as a random access descriptor - */ - - oflags = O_RDWR; - if ((wfile->w_rfd = open(wfile->w_file, oflags)) == -1) { - sprintf(Wlog_Error_String, - "Could not open write log - open(%s, %#o) failed: %s\n", - wfile->w_file, oflags, strerror(errno)); - close(wfile->w_afd); - wfile->w_afd = -1; - return -1; - } - - return 0; -} - -/* - * Release all resources associated with a wlog_file structure allocated - * with the wlog_open() call. - */ - -int -wlog_close(wfile) -struct wlog_file *wfile; -{ - close(wfile->w_afd); - close(wfile->w_rfd); - return 0; -} - -/* - * Write a wlog_rec structure to a write logfile. Offset is used to - * control where the record will be written. If offset is < 0, the - * record will be appended to the end of the logfile. Otherwise, the - * record which exists at the indicated offset will be overlayed. This - * is so that we can record writes which are outstanding (with the w_done - * bit in wrec cleared), but not completed, and then later update the - * logfile when the write request completes (as with async io). When - * offset is >= 0, only the fixed length portion of the record is - * rewritten. See text in write_log.h for details on the format of an - * on-disk record. - * - * The return value of the function is the byte offset in the logfile - * where the record begins. - * - * Note: It is the callers responsibility to make sure that the offset - * parameter 'points' to a valid record location when a record is to be - * overlayed. This is guarenteed by saving the return value of a previous - * call to wlog_record_write() which wrote the record to be overlayed. - * - * Note2: The on-disk version of the wlog_rec is MUCH different than - * the user version. Don't expect to od the logfile and see data formatted - * as it is in the wlog_rec structure. Considerable data packing takes - * place before the record is written. - */ - -int -wlog_record_write(wfile, wrec, offset) -struct wlog_file *wfile; -struct wlog_rec *wrec; -long offset; -{ - int reclen; - char wbuf[WLOG_REC_MAX_SIZE + 2]; - - /* - * If offset is -1, we append the record at the end of file - * - * Otherwise, we overlay wrec at the file offset indicated and assume - * that the caller passed us the correct offset. We do not record the - * fname in this case. - */ - - reclen = wlog_rec_pack(wrec, wbuf, (offset < 0)); - - if (offset < 0) { - /* - * Since we're writing a complete new record, we must also tack - * its length onto the end so that wlog_scan_backward() will work. - * Length is asumed to fit into 2 bytes. - */ - - wbuf[reclen] = reclen / 256; - wbuf[reclen+1] = reclen % 256; - reclen += 2; - - write(wfile->w_afd, wbuf, reclen); - offset = lseek(wfile->w_afd, 0, SEEK_CUR) - reclen; - } else { - lseek(wfile->w_rfd, offset, SEEK_SET); - write(wfile->w_rfd, wbuf, reclen); - } - - return offset; -} - -/* - * Function to scan a logfile in reverse order. Wfile is a valid - * wlog_file structure initialized by wlog_open(). nrecs is the number - * of records to scan (all records are scanned if nrecs is 0). func is - * a user-supplied function to call for each record found. The function - * will be passed a single parameter - a wlog_rec structure . - */ - -int -wlog_scan_backward(wfile, nrecs, func, data) -struct wlog_file *wfile; -int nrecs; -int (*func)(); -long data; -{ - int fd, leftover, nbytes, offset, recnum, reclen, rval; - char buf[BSIZE*32], *bufend, *cp, *bufstart; - char albuf[WLOG_REC_MAX_SIZE]; - struct wlog_rec wrec; - - fd = wfile->w_rfd; - - /* - * Move to EOF. offset will always hold the current file offset - */ - - lseek(fd, 0, SEEK_END); - offset = lseek(fd, 0, SEEK_CUR); - - bufend = buf + sizeof(buf); - bufstart = buf; - - recnum = 0; - leftover = 0; - while ((!nrecs || recnum < nrecs) && offset > 0) { - /* - * Check for beginning of file - if there aren't enough bytes - * remaining to fill buf, adjust bufstart. - */ - - if (offset + leftover < sizeof(buf)) { - bufstart = bufend - (offset + leftover); - offset = 0; - } else { - offset -= sizeof(buf) - leftover; - } - - /* - * Move to the proper file offset, and read into buf - */ - - lseek(fd, offset, SEEK_SET); - nbytes = read(fd, bufstart, bufend - bufstart - leftover); - - if (nbytes == -1) { - sprintf(Wlog_Error_String, - "Could not read history file at offset %d - read(%d, %#o, %d) failed: %s\n", - offset, fd, (int)bufstart, - bufend - bufstart - leftover, strerror(errno)); - return -1; - } - - cp = bufend; - leftover = 0; - - while (cp >= bufstart) { - - /* - * If cp-bufstart is not large enough to hold a piece - * of record length information, copy remainder to end - * of buf and continue reading the file. - */ - - if (cp - bufstart < 2) { - leftover = cp - bufstart; - memcpy(bufend - leftover, bufstart, leftover); - break; - } - - /* - * Extract the record length. We must do it this way - * instead of casting cp to an int because cp might - * not be word aligned. - */ - - reclen = (*(cp-2) * 256) + *(cp -1); - - /* - * If cp-bufstart isn't large enough to hold a - * complete record, plus the length information, copy - * the leftover bytes to the end of buf and continue - * reading. - */ - - if (cp - bufstart < reclen + 2) { - leftover = cp - bufstart; - memcpy(bufend - leftover, bufstart, leftover); - break; - } - - /* - * Adjust cp to point at the start of the record. - * Copy the record into wbuf so that it is word - * aligned and pass the record to the user supplied - * function. - */ - - cp -= reclen + 2; - memcpy(albuf, cp, reclen); - - wlog_rec_unpack(&wrec, albuf); - - /* - * Call the user supplied function - - * stop if instructed to. - */ - - if ((rval = (*func)(&wrec, data)) == WLOG_STOP_SCAN) { - break; - } - - recnum++; - - if (nrecs && recnum >= nrecs) - break; - } - } - - return 0; -} - -/* - * The following 2 routines are used to pack and unpack the user - * visible wlog_rec structure to/from a character buffer which is - * stored or read from the write logfile. Any changes to either of - * these routines must be reflected in the other. - */ - -static int -wlog_rec_pack(wrec, buf, flag) -struct wlog_rec *wrec; -char *buf; -int flag; -{ - char *file, *host, *pattern; - struct wlog_rec_disk *wrecd; - - wrecd = (struct wlog_rec_disk *)buf; - - wrecd->w_pid = (uint)wrec->w_pid; - wrecd->w_offset = (uint)wrec->w_offset; - wrecd->w_nbytes = (uint)wrec->w_nbytes; - wrecd->w_oflags = (uint)wrec->w_oflags; - wrecd->w_done = (uint)wrec->w_done; - wrecd->w_async = (uint)wrec->w_async; - - wrecd->w_pathlen = (wrec->w_pathlen > 0) ? (uint)wrec->w_pathlen : 0; - wrecd->w_hostlen = (wrec->w_hostlen > 0) ? (uint)wrec->w_hostlen : 0; - wrecd->w_patternlen = (wrec->w_patternlen > 0) ? (uint)wrec->w_patternlen : 0; - - /* - * If flag is true, we should also pack the variable length parts - * of the wlog_rec. By default, we only pack the fixed length - * parts. - */ - - if (flag) { - file = buf + sizeof(struct wlog_rec_disk); - host = file + wrecd->w_pathlen; - pattern = host + wrecd->w_hostlen; - - if (wrecd->w_pathlen > 0) - memcpy(file, wrec->w_path, wrecd->w_pathlen); - - if (wrecd->w_hostlen > 0) - memcpy(host, wrec->w_host, wrecd->w_hostlen); - - if (wrecd->w_patternlen > 0) - memcpy(pattern, wrec->w_pattern, wrecd->w_patternlen); - - return (sizeof(struct wlog_rec_disk) + - wrecd->w_pathlen + wrecd->w_hostlen + wrecd->w_patternlen); - } else { - return sizeof(struct wlog_rec_disk); - } -} - -static int -wlog_rec_unpack(wrec, buf) -struct wlog_rec *wrec; -char *buf; -{ - char *file, *host, *pattern; - struct wlog_rec_disk *wrecd; - - bzero((char *)wrec, sizeof(struct wlog_rec)); - wrecd = (struct wlog_rec_disk *)buf; - - wrec->w_pid = wrecd->w_pid; - wrec->w_offset = wrecd->w_offset; - wrec->w_nbytes = wrecd->w_nbytes; - wrec->w_oflags = wrecd->w_oflags; - wrec->w_hostlen = wrecd->w_hostlen; - wrec->w_pathlen = wrecd->w_pathlen; - wrec->w_patternlen = wrecd->w_patternlen; - wrec->w_done = wrecd->w_done; - wrec->w_async = wrecd->w_async; - - if (wrec->w_pathlen > 0) { - file = buf + sizeof(struct wlog_rec_disk); - memcpy(wrec->w_path, file, wrec->w_pathlen); - } - - if (wrec->w_hostlen > 0) { - host = buf + sizeof(struct wlog_rec_disk) + wrec->w_pathlen; - memcpy(wrec->w_host, host, wrec->w_hostlen); - } - - if (wrec->w_patternlen > 0) { - pattern = buf + sizeof(struct wlog_rec_disk) + - wrec->w_pathlen + wrec->w_hostlen; - memcpy(wrec->w_pattern, pattern, wrec->w_patternlen); - } - - return 0; -} -- cgit v1.2.3