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+/*
+ * LTbigf.c -- Lsof Test big file size and offset tests
+ *
+ * V. Abell
+ * Purdue University
+ */
+
+
+/*
+ * Copyright 2002 Purdue Research Foundation, West Lafayette, Indiana
+ * 47907. All rights reserved.
+ *
+ * Written by V. 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 2002 Purdue Research Foundation.\nAll rights reserved.\n";
+#endif
+
+#include "LsofTest.h"
+
+#if !defined(LT_BIGF)
+
+/*
+ * Here begins the version of this program for dialects that don't support
+ * large files.
+ */
+
+
+/*
+ * Main program for dialects that don't support large files
+ */
+
+int
+main(argc, argv)
+ int argc; /* argument count */
+ char *argv[]; /* arguments */
+{
+ char *pn; /* program name */
+/*
+ * Get program name and issue start and exit message.
+ */
+ if ((pn = (char *)strrchr(argv[0], '/')))
+ pn++;
+ else
+ pn = argv[0];
+
+ (void) printf("%s ... %s\n", pn, LT_DONT_DO_TEST);
+ return(0);
+}
+#else /* defined(LT_BIGF) */
+
+/*
+ * Here begins the version of this program for dialects that support
+ * large files.
+ */
+
+#include "lsof_fields.h"
+
+
+/*
+ * Pre-definitions that may be changed by specific dialects
+ */
+
+#define OFFTST_STAT 1 /* offset tests status */
+
+
+#if defined(LT_DIAL_aix)
+/*
+ * AIX-specific definitions
+ */
+
+#define OFFSET_T off64_t /* define offset type */
+#endif /* defined(LT_DIAL_aix) */
+
+
+#if defined(LT_DIAL_bsdi)
+/*
+ * BSDI-specific definitions
+ */
+
+#define OFFSET_T off_t /* define offset type */
+#define OPENF open /* define open function */
+#define SEEKF lseek /* define seek function */
+#define STATF stat /* define stat function */
+#define STATS struct stat /* define stat structure */
+#endif /* defined(LT_DIAL_bsdi) */
+
+
+#if defined(LT_DIAL_darwin)
+/*
+ * Darwin-specific definitions
+ */
+
+# if LT_VERS>=900
+#define OFFSET_T off_t /* define offset type */
+#define OPENF open /* define open function */
+#define SEEKF lseek /* define seek function */
+#define STATF stat /* define stat function */
+#define STATS struct stat /* define stat structure */
+# endif /* LT_VERS>=900 */
+#endif /* defined(LT_DIAL_darwin) */
+
+
+#if defined(LT_DIAL_du)
+/*
+ * DEC_OSF/1|Digital_UNIX|Tru64_UNIX-specific items
+ */
+
+#define OFFSET_T off_t /* define offset type */
+#define OPENF open /* define open function */
+#define SEEKF lseek /* define seek function */
+#define STATF stat /* define stat function */
+#define STATS struct stat /* define stat structure */
+#endif /* defined(LT_DIAL_du) */
+
+
+#if defined(LT_DIAL_freebsd)
+/*
+ * FreeBSD-specific definitions
+ */
+
+#define OFFSET_T off_t /* define offset type */
+#define OPENF open /* define open function */
+#define SEEKF lseek /* define seek function */
+#define STATF stat /* define stat function */
+#define STATS struct stat /* define stat structure */
+#endif /* defined(LT_DIAL_freebsd) */
+
+
+#if defined(LT_DIAL_linux)
+/*
+ * Linux-specific definitions
+ */
+
+#undef OFFTST_STAT
+#define OFFTST_STAT 0 /* Linux lsof may not be able to report
+ * offsets -- see the function
+ * ck_Linux_offset_support() */
+#define OFFSET_T off_t /* define offset type */
+#define OPENF open /* define open function */
+#define SEEKF lseek /* define seek function */
+#define STATF stat /* define stat function */
+#define STATS struct stat /* define stat structure */
+
+_PROTOTYPE(static int ck_Linux_offset_support,(void));
+#endif /* defined(LT_DIAL_linux) */
+
+
+#if defined(LT_DIAL_hpux)
+/*
+ * HP-UX-specific definitions
+ */
+
+#define OFFSET_T off64_t /* define offset type */
+#endif /* defined(LT_DIAL_hpux) */
+
+
+#if defined(LT_DIAL_netbsd)
+/*
+ * NetBSD-specific definitions
+ */
+
+#define OFFSET_T off_t /* define offset type */
+#define OPENF open /* define open function */
+#define SEEKF lseek /* define seek function */
+#define STATF stat /* define stat function */
+#define STATS struct stat /* define stat structure */
+#endif /* defined(LT_DIAL_netbsd) */
+
+
+#if defined(LT_DIAL_openbsd)
+/*
+ * OpenBSD-specific definitions
+ */
+
+#define OFFSET_T off_t /* define offset type */
+#define OPENF open /* define open function */
+#define SEEKF lseek /* define seek function */
+#define STATF stat /* define stat function */
+#define STATS struct stat /* define stat structure */
+#endif /* defined(LT_DIAL_openbsd) */
+
+
+#if defined(LT_DIAL_ou)
+/*
+ * OpenUNIX-specific items
+ */
+
+#include <signal.h>
+
+#define IGNORE_SIGXFSZ
+#define OFFSET_T off64_t /* define offset type */
+#endif /* defined(LT_DIAL_ou) */
+
+
+#if defined(LT_DIAL_solaris)
+/*
+ * Solaris-specific definitions
+ */
+
+#define OFFSET_T off64_t /* define offset type */
+#endif /* defined(LT_DIAL_solaris) */
+
+
+#if defined(LT_DIAL_uw)
+/*
+ * UnixWare-specific items
+ */
+
+#include <signal.h>
+
+#define IGNORE_SIGXFSZ
+#define OFFSET_T off64_t /* define offset type */
+#endif /* defined(LT_DIAL_uw) */
+
+
+/*
+ * Local definitions
+ */
+
+#if !defined(OPENF)
+#define OPENF open64 /* open() function */
+#endif /* !defined(OPENF) */
+
+#if !defined(OFFSET_T)
+#define OFFSET_T unsigned long long /* offset type */
+#endif /* !defined(OFFSET_T) */
+
+#if !defined(SEEKF)
+#define SEEKF lseek64 /* seek() function */
+# endif /* !defined(SEEKF) */
+
+#if !defined(STATF)
+#define STATF stat64 /* stat(2) structure */
+#endif /* !defined(STATF) */
+
+#if !defined(STATS)
+#define STATS struct stat64 /* stat(2) structure */
+#endif /* !defined(STATS) */
+
+#define TST_OFFT 0 /* test offset in 0t decimal*/
+#define TST_OFFX 1 /* test offset in hex */
+#define TST_SZ 2 /* test size */
+
+
+/*
+ * Globals
+ */
+
+int Fd = -1; /* test file descriptor; open if >= 0 */
+pid_t MyPid = (pid_t)0; /* PID of this process */
+char *Path = (char *)NULL; /* test file path; none if NULL */
+char *Pn = (char *)NULL; /* program name */
+
+
+/*
+ * Local function prototypes
+ */
+
+_PROTOTYPE(static void cleanup,(void));
+_PROTOTYPE(static int tstwlsof,(int tt, char *opt, OFFSET_T sz));
+
+
+/*
+ * Main program for dialects that support large files
+ */
+
+int
+main(argc, argv)
+ int argc; /* argument count */
+ char *argv[]; /* arguments */
+{
+ char buf[2048]; /* temporary buffer */
+ int do_offt = OFFTST_STAT; /* do offset tests if == 1 */
+ char *em; /* error message pointer */
+ int i; /* temporary integer */
+ int len; /* string length */
+ OFFSET_T sz = 0x140000000ll; /* test file size */
+ char szbuf[64]; /* size buffer */
+ char *tcp; /* temporary character pointer */
+ int tofft = 0; /* 0t offset test result */
+ int toffx = 0; /* 0x offset test result */
+ int tsz = 0; /* size test result */
+ int xv = 0; /* exit value */
+/*
+ * Get program name and PID, issue start message, and build space prefix.
+ */
+ if ((Pn = strrchr(argv[0], '/')))
+ Pn++;
+ else
+ Pn = argv[0];
+ MyPid = getpid();
+ (void) printf("%s ... ", Pn);
+ (void) fflush(stdout);
+ PrtMsg((char *)NULL, Pn);
+/*
+ * Process arguments.
+ */
+ if (ScanArg(argc, argv, "hp:", Pn))
+ xv = 1;
+ if (xv || LTopt_h) {
+ (void) PrtMsg("usage: [-h] [-p path]", Pn);
+ PrtMsg (" -h print help (this panel)", Pn);
+ PrtMsgX (" -p path define test file path", Pn, cleanup, xv);
+ }
+
+#if defined(LT_DIAL_linux)
+/*
+ * If this is Linux, see if lsof can report file offsets.
+ */
+ do_offt = ck_Linux_offset_support();
+#endif /* defined(LT_DIAL_linux) */
+
+/*
+ * See if lsof can be executed and can access kernel memory.
+ */
+ if ((em = IsLsofExec()))
+ (void) PrtMsgX(em, Pn, cleanup, 1);
+ if ((em = CanRdKmem()))
+ (void) PrtMsgX(em, Pn, cleanup, 1);
+/*
+ * Construct the path. If LT_BIGSZOFF_PATH is defined in the environment,
+ * use it. otherwise construct a path in the CWD.
+ */
+ if (!(Path = LTopt_p)) {
+ (void) snprintf(buf, sizeof(buf), "./config.LTbigf%ld",
+ (long)MyPid);
+ buf[sizeof(buf) - 1] = '\0';
+ Path = MkStrCpy(buf, &len);
+ }
+/*
+ * Fill buffer for writing to the test file.
+ */
+ for (i = 0; i < sizeof(buf); i++) {
+ buf[i] = (char)(i & 0xff);
+ }
+
+#if defined(IGNORE_SIGXFSZ)
+/*
+ * Ignore SIGXFSZ, if directed by a dialect-specific option.
+ */
+ (void) signal(SIGXFSZ, SIG_IGN);
+#endif /* defined(IGNORE_SIGXFSZ) */
+
+/*
+ * Open a new test file at the specified path.
+ */
+ (void) unlink(Path);
+ if ((Fd = OPENF(Path, O_RDWR|O_CREAT, 0600)) < 0) {
+ (void) fprintf(stderr, "ERROR!!! can't open %s\n", Path);
+
+print_hint:
+
+ /*
+ * Print a hint about the LT_BIGSZOFF_PATH environment variable.
+ */
+
+ MsgStat = 1;
+ (void) snprintf(buf, sizeof(buf) - 1, " Errno %d: %s",
+ errno, strerror(errno));
+ buf[sizeof(buf) - 1] = '\0';
+ (void) PrtMsg(buf, Pn);
+ (void) PrtMsg("Hint: try using \"-p path\" to supply a path in a", Pn);
+ (void) PrtMsg("file system that has large file support enabled.\n", Pn);
+ (void) PrtMsg("Hint: try raising the process ulimit file block", Pn);
+ (void) PrtMsg("size to a value that will permit this test to", Pn);
+ (void) snprintf(szbuf, sizeof(szbuf) - 1, "%lld", (long long)sz);
+ szbuf[sizeof(szbuf) - 1] = '\0';
+ (void) snprintf(buf, sizeof(buf) - 1,
+ "write a file whose size appears to be %s", szbuf);
+ buf[sizeof(buf) - 1] = '\0';
+ (void) PrtMsg(buf, Pn);
+ (void) PrtMsg("bytes. (The file really isn't that big -- it", Pn);
+ (void) PrtMsg("just has a large \"hole\" in its mid-section.)\n", Pn);
+ (void) PrtMsgX("See 00FAQ and 00TEST for more information.", Pn,
+ cleanup, 1);
+ }
+/*
+ * Write a buffer load at the beginning of the file.
+ */
+ if (SEEKF(Fd, (OFFSET_T)0, SEEK_SET) < 0) {
+ (void) fprintf(stderr,
+ "ERROR!!! can't seek to the beginning of %s\n", Path);
+ goto print_hint;
+ }
+ if (write(Fd, buf, sizeof(buf)) != sizeof(buf)) {
+ (void) fprintf(stderr,
+ "ERROR!!! can't write %d bytes to the beginning of %s\n",
+ (int)sizeof(buf), Path);
+ goto print_hint;
+ }
+/*
+ * Write a buffer load near the end of the file to bring it to the
+ * specified length. Leave the file open so lsof can find it.
+ */
+ if (SEEKF(Fd, (OFFSET_T)(sz - sizeof(buf)), SEEK_SET) < 0) {
+ (void) snprintf(szbuf, sizeof(szbuf) - 1, "%lld",
+ (unsigned long long)(sz - sizeof(buf)));
+ (void) fprintf(stderr, "ERROR!!! can't seek to %s in %s\n", szbuf,
+ Path);
+ goto print_hint;
+ }
+ if (write(Fd, buf, sizeof(buf)) != sizeof(buf)) {
+ (void) fprintf(stderr,
+ "ERROR!!! can't write %d bytes near the end of %s\n",
+ (int)sizeof(buf), Path);
+ goto print_hint;
+ }
+/*
+ * Fsync() the file.
+ */
+ if (fsync(Fd)) {
+ (void) fprintf(stderr, "ERROR!!! can't fsync %s\n", Path);
+ goto print_hint;
+ }
+
+/*
+ * If this dialect can't report offsets, disable the offset tests.
+ */
+ if (!do_offt) {
+ tofft = toffx = 1;
+ PrtMsg("WARNING!!! lsof can't return file offsets for this dialect,",
+ Pn);
+ PrtMsg(" so offset tests have been disabled.", Pn);
+ }
+/*
+ * Do file size test.
+ */
+ tsz = tstwlsof(TST_SZ, "-s", sz);
+/*
+ * If enabled, do offset tests.
+ */
+ if (!tofft)
+ tofft = tstwlsof(TST_OFFT, "-oo20", sz);
+ if (!toffx)
+ toffx = tstwlsof(TST_OFFX, "-oo2", sz);
+/*
+ * Compute exit value and exit.
+ */
+ if ((tsz != 1) || (tofft != 1) || (toffx != 1)) {
+ tcp = (char *)NULL;
+ xv = 1;
+ } else {
+ tcp = "OK";
+ xv = 0;
+ }
+ (void) PrtMsgX(tcp, Pn, cleanup, xv);
+ return(0);
+}
+
+
+#if defined(LT_DIAL_linux)
+/*
+ * ck_Linux_offset_support() -- see if lsof can report offsets for this
+ * Linux implementation
+ */
+
+static int
+ck_Linux_offset_support()
+{
+ char buf[1024]; /* lsof output line buffer */
+ int bufl = sizeof(buf); /* size of buf[] */
+ char *opv[5]; /* option vector for lsof */
+ int rv = 1; /* return value:
+ * 0 == no lsof offset support
+ * 1 == lsof offset support */
+/*
+ * Ask lsof to report the test's FD zero offset.
+ */
+ if (IsLsofExec())
+ return(0);
+ opv[0] = "-o";
+ snprintf(buf, bufl - 1, "-p%d", (int)getpid());
+ opv[1] = buf;
+ opv[2] = "-ad0";
+ opv[3] = "+w";
+ opv[4] = (char *)NULL;
+ if (ExecLsof(opv))
+ return(0);
+/*
+ * Read the lsof output. Look for a line with "WARNING: can't report offset"
+ * in it. If it is found, then this Linux lsof can't report offsets.
+ */
+ while(fgets(buf, bufl - 1, LsofFs)) {
+ if (strstr(buf, "WARNING: can't report offset")) {
+ rv = 0;
+ break;
+ }
+ }
+ (void) StopLsof();
+ return(rv);
+}
+#endif /* defined(LT_DIAL_linux) */
+
+
+/*
+ * cleanup() -- release resources
+ */
+
+static void
+cleanup()
+{
+ if (Fd >= 0) {
+/*
+ * Close the test file.
+ *
+ * But first unlink it to discourage some kernel file system implementations
+ * (e.g., HFS on Apple Darwin, aka Mac OS X) from trying to fill the file's
+ * large holes. (Filling can take a long time.)
+ */
+ if (Path) {
+ (void) unlink(Path);
+ Path = (char *)NULL;
+ }
+ (void) close(Fd);
+ Fd = -1;
+ }
+}
+
+
+/*
+ * tstwlsof() -- test the open file with lsof
+ */
+
+static int
+tstwlsof(tt, opt, sz)
+ int tt; /* test type -- i.e., TST_* */
+ char *opt; /* additional lsof options */
+ OFFSET_T sz; /* expected size (and offset) */
+{
+ char buf[2048], buf1[2048]; /* temporary buffers */
+ LTfldo_t *cmdp; /* command pointer */
+ LTfldo_t *devp; /* device pointer */
+ char *em; /* error message pointer */
+ int ff = 0; /* file found status */
+ LTfldo_t *fop; /* field output pointer */
+ LTfldo_t *inop; /* inode number pointer */
+ LTdev_t lsofdc; /* lsof device components */
+ int nf; /* number of fields */
+ LTfldo_t *nmp; /* file name pointer */
+ LTfldo_t *offp; /* file offset pointer */
+ char *opv[4]; /* option vector for ExecLsof() */
+ pid_t pid; /* PID */
+ int pids = 0; /* PID found status */
+ STATS sb; /* stat(2) buffer */
+ LTdev_t stdc; /* stat(2) device components */
+ LTfldo_t *szp; /* file size pointer */
+ LTfldo_t *tfop; /* temporary field output pointer */
+ int ti; /* temporary index */
+ LTfldo_t *typ; /* file type pointer */
+ int xv = 0; /* exit value */
+/*
+ * Check the test type.
+ */
+ switch (tt) {
+ case TST_OFFT:
+ case TST_OFFX:
+ case TST_SZ:
+ break;
+ default:
+ (void) snprintf(buf, sizeof(buf) - 1,
+ "ERROR!!! unknown test type: %d", tt);
+ buf[sizeof(buf) - 1] = '\0';
+ (void) PrtMsgX(buf, Pn, cleanup, 1);
+ }
+/*
+ * Get test file's information.
+ */
+ if (STATF(Path, &sb)) {
+ (void) snprintf(buf, sizeof(buf) - 1,
+ "ERROR!!! can't stat(2) %s: %s", Path, strerror(errno));
+ buf[sizeof(buf) - 1] = '\0';
+ (void) PrtMsgX(buf, Pn, cleanup, 1);
+ }
+/*
+ * Extract components from test file's device number.
+ */
+ if ((em = ConvStatDev(&sb.st_dev, &stdc))) {
+ (void) PrtMsg(em, Pn);
+ return(0);
+ }
+/*
+ * Complete the option vector and start lsof execution.
+ */
+ ti = 0;
+ if (opt && *opt)
+ opv[ti++] = opt;
+
+#if defined(USE_LSOF_C_OPT)
+ opv[ti++] = "-C";
+#else /* !defined(USE_LSOF_C_OPT) */
+ opv[ti++] = "--";
+#endif /* defined(USE_LSOF_C_OPT) */
+
+ opv[ti++] = Path;
+ opv[ti] = (char *)NULL;
+ if ((em = ExecLsof(opv))) {
+ (void) PrtMsg(em, Pn);
+ return(0);
+ }
+/*
+ * Read lsof output.
+ */
+ while (!ff && (fop = RdFrLsof(&nf, &em))) {
+ switch (fop->ft) {
+ case LSOF_FID_PID:
+
+ /*
+ * This is a process information line.
+ */
+ pid = (pid_t)atoi(fop->v);
+ pids = 1;
+ cmdp = (LTfldo_t *)NULL;
+ for (fop++, ti = 1; ti < nf; fop++, ti++) {
+ switch (fop->ft) {
+ case LSOF_FID_CMD:
+ cmdp = fop;
+ break;
+ }
+ }
+ if (!cmdp || (pid != MyPid))
+ pids = 0;
+ break;
+ case LSOF_FID_FD:
+
+ /*
+ * This is a file descriptor line.
+ *
+ * Scan for device number, inode number, name, offset, size, and type
+ * fields.
+ */
+ if (!pids)
+ break;
+ devp = inop = nmp = offp = szp = typ = (LTfldo_t *)NULL;
+ for (fop++, ti = 1; ti < nf; fop++, ti++) {
+ switch(fop->ft) {
+ case LSOF_FID_DEVN:
+ devp = fop;
+ break;
+ case LSOF_FID_INODE:
+ inop = fop;
+ break;
+ case LSOF_FID_NAME:
+ nmp = fop;
+ break;
+ case LSOF_FID_OFFSET:
+ offp = fop;
+ break;
+ case LSOF_FID_SIZE:
+ szp = fop;
+ break;
+ case LSOF_FID_TYPE:
+ typ = fop;
+ break;
+ }
+ }
+ /*
+ * Check the results of the file descriptor field scan.
+ *
+ * (Don't compare path names because of symbolic link interference.)
+ */
+ if (!devp || !inop || !nmp || !typ)
+ break;
+ if (strcasecmp(typ->v, "reg") && strcasecmp(typ->v, "vreg"))
+ break;
+ if (ConvLsofDev(devp->v, &lsofdc))
+ break;
+ if ((stdc.maj != lsofdc.maj)
+ || (stdc.min != lsofdc.min)
+ || (stdc.unit != lsofdc.unit))
+ break;
+ (void) snprintf(buf, sizeof(buf) - 1, "%llu",
+ (unsigned long long)sb.st_ino);
+ buf[sizeof(buf) - 1] = '\0';
+ if (strcmp(inop->v, buf))
+ break;
+ /*
+ * The specifed file has been located. Check its size or offset,
+ * according to the tt argument.
+ */
+ ff = 1;
+ switch (tt) {
+ case TST_OFFT:
+ case TST_SZ:
+
+ /*
+ * Test the size as an offset in decimal with a leading "0t", or
+ * test the size as a size in decimal.
+ */
+ (void) snprintf(buf, sizeof(buf) - 1,
+ (tt == TST_SZ) ? "%llu" : "0t%llu",
+ (unsigned long long)sz);
+ buf[sizeof(buf) - 1] = '\0';
+ tfop = (tt == TST_SZ) ? szp : offp;
+ if (!tfop || strcmp(tfop->v, buf)) {
+ (void) snprintf(buf1, sizeof(buf1) - 1,
+ "%s mismatch: expected %s, got %s",
+ (tt == TST_SZ) ? "size" : "0t offset",
+ buf,
+ tfop ? tfop->v : "nothing");
+ buf1[sizeof(buf1) - 1] = '\0';
+ (void) PrtMsg(buf1, Pn);
+ xv = 0;
+ } else
+ xv = 1;
+ break;
+ case TST_OFFX:
+
+ /*
+ * Test the size as an offset in hex.
+ */
+ (void) snprintf(buf, sizeof(buf) - 1, "0x%llx",
+ (unsigned long long)sz);
+ buf[sizeof(buf) - 1] = '\0';
+ if (!offp || strcmp(offp->v, buf)) {
+ (void) snprintf(buf1, sizeof(buf1) - 1,
+ "0x offset mismatch: expected %s, got %s",
+ buf,
+ offp ? offp->v : "nothing");
+ buf1[sizeof(buf1) - 1] = '\0';
+ (void) PrtMsg(buf1, Pn);
+ xv = 0;
+ } else
+ xv = 1;
+ }
+ break;
+ }
+ }
+ (void) StopLsof();
+ if (em) {
+
+ /*
+ * RdFrLsof() encountered an error.
+ */
+ (void) PrtMsg(em, Pn);
+ xv = 0;
+ }
+ if (!ff) {
+ (void) snprintf(buf, sizeof(buf) - 1, "%s not found by lsof", Path);
+ buf[sizeof(buf) - 1] = '\0';
+ PrtMsg(buf, Pn);
+ xv = 0;
+ }
+ return(xv);
+}
+#endif /* defined(LT_BIG) */
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-16 17:30:07 +0000