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-rw-r--r--dialects/aix/ddev.c728
1 files changed, 728 insertions, 0 deletions
diff --git a/dialects/aix/ddev.c b/dialects/aix/ddev.c
new file mode 100644
index 0000000..4150aa6
--- /dev/null
+++ b/dialects/aix/ddev.c
@@ -0,0 +1,728 @@
+/*
+ * ddev.c - AIX device support functions 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: ddev.c,v 1.14 2005/08/08 19:46:38 abe Exp $";
+#endif
+
+
+#include "lsof.h"
+
+
+/*
+ * Local definitions
+ */
+
+#define LIKE_BLK_SPEC "like block special"
+#define LIKE_CHR_SPEC "like character special"
+
+
+/*
+ * Local function prototypes
+ */
+
+_PROTOTYPE(static int rmdupdev,(struct l_dev ***dp, int n, char *nm));
+
+
+#if defined(HASDCACHE) && AIXV>=4140
+
+
+/*
+ * clr_sect() - clear cached clone and pseudo sections
+ */
+
+void
+clr_sect()
+{
+ struct clone *c, *c1;
+
+ if (Clone) {
+ for (c = Clone; c; c = c1) {
+ c1 = c->next;
+ if (c->cd.name)
+ (void) free((FREE_P *)c->cd.name);
+ (void) free((FREE_P *)c);
+ }
+ Clone = (struct clone *)NULL;
+ }
+}
+#endif /* defined(HASDCACHE) && AIXV>=4140 */
+
+
+/*
+ * getchan() - get channel from file path name
+ */
+
+int
+getchan(p)
+ char *p; /* file path name */
+{
+ int ch;
+ char *s;
+
+ if (!(s = strrchr(p, '/')))
+ return(-1);
+ if (*(++s) == '\0')
+ return(-1);
+ for (ch = 0; *s; s++) {
+
+#if defined(__STDC__)
+ if ( ! isdigit(*s))
+#else
+ if ( ! isascii(*s) || ! isdigit(*s))
+#endif /* __STDC__ */
+
+ return(-1);
+ ch = (ch * 10) + *s - '0';
+ }
+ return(ch);
+}
+
+
+/*
+ * printdevname() - print device name
+ */
+
+int
+printdevname(dev, rdev, f, nty)
+ dev_t *dev; /* device */
+ dev_t *rdev; /* raw device */
+ int f; /* 1 = follow with '\n' */
+ int nty; /* node type: N_BLK or N_CHR */
+{
+ struct l_dev *dp;
+/*
+ * Search device table for a full match.
+ */
+ if ((dp = lkupdev(dev, rdev, 1, 1))) {
+ if (Lf->ch < 0)
+ safestrprt(dp->name, stdout, f);
+ else {
+ safestrprt(dp->name, stdout, 0);
+ (void) printf("/%d%s", Lf->ch, f ? "\n" : "");
+ }
+ return(1);
+ }
+/*
+ * Search device table for a match without inode number and dev.
+ */
+ if ((dp = lkupdev(&DevDev, rdev, 0, 1))) {
+
+ /*
+ * A raw device match was found. Record it as a name column addition.
+ */
+ char *cp, *ttl;
+ int len;
+
+ ttl = (nty == N_BLK) ? LIKE_BLK_SPEC : LIKE_CHR_SPEC;
+ len = (int)(1 + strlen(ttl) + 1 + strlen(dp->name) + 1);
+ if (!(cp = (char *)malloc((MALLOC_S)(len + 1)))) {
+ (void) fprintf(stderr, "%s: no nma space for: (%s %s)\n",
+ Pn, ttl, dp->name);
+ Exit(1);
+ }
+ (void) snpf(cp, len + 1, "(%s %s)", ttl, dp->name);
+ (void) add_nma(cp, len);
+ (void) free((MALLOC_P *)cp);
+ return(0);
+ }
+ return(0);
+}
+
+
+/*
+ * readdev() - read device names, modes and types
+ */
+
+void
+readdev(skip)
+ int skip; /* skip device cache read if 1 */
+{
+
+#if defined(HASDCACHE)
+ int dcrd;
+#endif /* defined(HASDCACHE) */
+
+ DIR *dfp;
+ struct dirent *dp;
+ char *fp = (char *)NULL;
+ int i = 0;
+
+#if defined(HASBLKDEV)
+ int j = 0;
+#endif /* defined(HASBLKDEV) */
+
+ char *path = (char *)NULL;
+ MALLOC_S pl;
+ struct stat sb;
+
+#if AIXV>=4140
+ struct clone *c;
+ dev_t cd;
+#endif /* AIXV >=4140 */
+
+ if (Sdev)
+ return;
+
+#if defined(HASDCACHE)
+/*
+ * Read device cache, as directed.
+ */
+ if (!skip) {
+ if (DCstate == 2 || DCstate == 3) {
+ if ((dcrd = read_dcache()) == 0)
+ return;
+ }
+ } else
+ dcrd = 1;
+#endif /* defined(HASDCACHE) */
+
+#if AIXV>=4140
+/*
+ * Establish the clone major device for AIX 4.1.4 and above.
+ */
+ if (stat("/dev/clone", &sb) == 0) {
+ cd = sb.st_rdev;
+ CloneMaj = GET_MAJ_DEV(cd);
+ }
+#endif /* AIXV >=4140 */
+
+ Dstk = (char **)NULL;
+ Dstkn = Dstkx = 0;
+ (void) stkdir("/dev");
+/*
+ * Unstack the next /dev or /dev/<subdirectory> directory.
+ */
+ while (--Dstkx >= 0) {
+ if (!(dfp = opendir(Dstk[Dstkx]))) {
+
+#if defined(WARNDEVACCESS)
+ if (!Fwarn) {
+ (void) fprintf(stderr, "%s: WARNING: can't open: ", Pn);
+ safestrprt(Dstk[Dstkx], stderr, 1);
+ }
+#endif /* defined(WARNDEVACCESS) */
+
+ (void) free((FREE_P *)Dstk[Dstkx]);
+ Dstk[Dstkx] = (char *)NULL;
+ continue;
+ }
+ if (path) {
+ (void) free((FREE_P *)path);
+ path = (char *)NULL;
+ }
+ if (!(path = mkstrcat(Dstk[Dstkx], -1, "/", 1, (char *)NULL,
+ -1, &pl)))
+ {
+ (void) fprintf(stderr, "%s: no space for: ", Pn);
+ safestrprt(Dstk[Dstkx], stderr, 1);
+ Exit(1);
+ }
+ (void) free((FREE_P *)Dstk[Dstkx]);
+ Dstk[Dstkx] = (char *)NULL;
+ /*
+ * Scan the directory.
+ */
+ for (dp = readdir(dfp); dp; dp = readdir(dfp)) {
+ if (!dp->d_ino || (dp->d_name[0] == '.'))
+ continue;
+ /*
+ * Form the full path name and get its status.
+ */
+ if (fp) {
+ (void) free((FREE_P *)fp);
+ fp = (char *)NULL;
+ }
+ if (!(fp = mkstrcat(path, (int)pl, dp->d_name, dp->d_namlen,
+ (char *)NULL, -1, (MALLOC_S *)NULL))) {
+ (void) fprintf(stderr, "%s: no space for: ", Pn);
+ safestrprt(path, stderr, 0);
+ safestrprt(dp->d_name, stderr, 1);
+ Exit(1);
+ }
+
+#if defined(USE_STAT)
+ if (stat(fp, &sb) != 0)
+#else /* !defined(USE_STAT) */
+ if (lstat(fp, &sb) != 0)
+#endif /* defined(USE_STAT) */
+
+ {
+ if (errno == ENOENT) /* symbolic link to nowhere? */
+ continue;
+
+#if defined(WARNDEVACCESS)
+ if (!Fwarn) {
+ int errno_save = errno;
+
+ (void) fprintf(stderr, "%s: can't stat: ", Pn);
+ safestrprt(fp, stderr, 0);
+ (void) fprintf(stderr, ": %s\n", strerror(errno_save));
+ }
+#endif /* defined(WARNDEVACCESS) */
+
+ continue;
+ }
+ /*
+ * If it's a subdirectory, stack its name for later processing.
+ */
+ if ((sb.st_mode & S_IFMT) == S_IFDIR) {
+ (void) stkdir(fp);
+ continue;
+ }
+ if ((sb.st_mode & S_IFMT) == S_IFCHR) {
+
+ /*
+ * Save character device information.
+ */
+ if (i >= Ndev) {
+ Ndev += DEVINCR;
+ if (!Devtp)
+ Devtp = (struct l_dev *)malloc(
+ (MALLOC_S)(sizeof(struct l_dev)*Ndev));
+ else
+ Devtp = (struct l_dev *)realloc( (MALLOC_P *)Devtp,
+ (MALLOC_S)(sizeof(struct l_dev)*Ndev));
+ if (!Devtp) {
+ (void) fprintf(stderr,
+ "%s: no space for character device\n", Pn);
+ Exit(1);
+ }
+ }
+ Devtp[i].rdev = sb.st_rdev;
+ Devtp[i].inode = (INODETYPE)sb.st_ino;
+ if (!(Devtp[i].name = mkstrcpy(fp, (MALLOC_S *)NULL))) {
+ (void) fprintf(stderr, "%s: no space for: ", Pn);
+ safestrprt(fp, stderr, 1);
+ Exit(1);
+ }
+ Devtp[i].v = 0;
+ i++;
+
+#if AIXV>=4140
+ /*
+ * Save information on AIX 4.1.4 and above clone devices.
+ */
+ if (CloneMaj >= 0 && CloneMaj == GET_MAJ_DEV(sb.st_rdev)) {
+ if (!(c = (struct clone *)malloc(
+ (MALLOC_S)sizeof(struct clone))))
+ {
+ (void) fprintf(stderr,
+ "%s: no space for clone device: ", Pn);
+ safestrprt(fp, stderr, 1);
+ exit(1);
+ }
+ if (!(c->cd.name = mkstrcpy(fp, (MALLOC_S)NULL))) {
+ (void) fprintf(stderr,
+ "%s: no space for clone name: ", Pn);
+ safestrprt(fp, stderr, 1);
+ exit(1);
+ }
+ c->cd.inode = (INODETYPE)sb.st_ino;
+ c->cd.rdev = sb.st_rdev;
+ c->cd.v = 0;
+ c->next = Clone;
+ Clone = c;
+ if (ClonePtc < 0 && strcmp(path, "/dev/ptc") == 0)
+ ClonePtc = GET_MIN_DEV(sb.st_rdev);
+ }
+#endif /* AIXV >=4140 */
+
+ }
+
+#if defined(HASBLKDEV)
+ if ((sb.st_mode & S_IFMT) == S_IFBLK) {
+
+ /*
+ * Save block device information in BDevtp[].
+ */
+ if (j >= BNdev) {
+ BNdev += DEVINCR;
+ if (!BDevtp)
+ BDevtp = (struct l_dev *)malloc(
+ (MALLOC_S)(sizeof(struct l_dev)*BNdev));
+ else
+ BDevtp = (struct l_dev *)realloc(
+ (MALLOC_P *)BDevtp,
+ (MALLOC_S)(sizeof(struct l_dev)*BNdev));
+ if (!BDevtp) {
+ (void) fprintf(stderr,
+ "%s: no space for block device\n", Pn);
+ Exit(1);
+ }
+ }
+ BDevtp[j].rdev = sb.st_rdev;
+ BDevtp[j].inode = (INODETYPE)sb.st_ino;
+ BDevtp[j].name = fp;
+ fp = (char *)NULL;
+ BDevtp[j].v = 0;
+ j++;
+ }
+#endif /* defined(HASBLKDEV) */
+
+ }
+ (void) closedir(dfp);
+ }
+/*
+ * Free any allocated space.
+ */
+ if (Dstk) {
+ (void) free((FREE_P *)Dstk);
+ Dstk = (char **)NULL;
+ Dstkn = Dstkx = 0;
+ }
+ if (fp)
+ (void) free((FREE_P *)fp);
+ if (path)
+ (void) free((FREE_P *)path);
+/*
+ * Reduce the BDevtp[] (optional) and Devtp[] tables to their minimum
+ * sizes; allocate and build sort pointer lists; and sort the tables by
+ * device number.
+ */
+
+#if defined(HASBLKDEV)
+ if (BNdev) {
+ if (BNdev > j) {
+ BNdev = j;
+ BDevtp = (struct l_dev *)realloc((MALLOC_P *)BDevtp,
+ (MALLOC_S)(sizeof(struct l_dev) * BNdev));
+ }
+ if (!(BSdev = (struct l_dev **)malloc(
+ (MALLOC_S)(sizeof(struct l_dev *) * BNdev))))
+ {
+ (void) fprintf(stderr,
+ "%s: no space for block device sort pointers\n", Pn);
+ Exit(1);
+ }
+ for (j = 0; j < BNdev; j++) {
+ BSdev[j] = &BDevtp[j];
+ }
+ (void) qsort((QSORT_P *)BSdev, (size_t)BNdev,
+ (size_t)sizeof(struct l_dev *), compdev);
+ BNdev = rmdupdev(&BSdev, BNdev, "block");
+ } else {
+ if (!Fwarn)
+ (void) fprintf(stderr,
+ "%s: WARNING: no block devices found\n", Pn);
+ }
+#endif /* defined(HASBLKDEV) */
+
+ if (Ndev) {
+ if (Ndev > i) {
+ Ndev = i;
+ Devtp = (struct l_dev *)realloc((MALLOC_P *)Devtp,
+ (MALLOC_S)(sizeof(struct l_dev) * Ndev));
+ }
+ if (!(Sdev = (struct l_dev **)malloc(
+ (MALLOC_S)(sizeof(struct l_dev *) * Ndev))))
+ {
+ (void) fprintf(stderr,
+ "%s: no space for character device sort pointers\n", Pn);
+ Exit(1);
+ }
+ for (i = 0; i < Ndev; i++) {
+ Sdev[i] = &Devtp[i];
+ }
+ (void) qsort((QSORT_P *)Sdev, (size_t)Ndev,
+ (size_t)sizeof(struct l_dev *), compdev);
+ Ndev = rmdupdev(&Sdev, Ndev, "char");
+ } else {
+ (void) fprintf(stderr, "%s: no character devices found\n", Pn);
+ Exit(1);
+ }
+
+#if defined(HASDCACHE)
+/*
+ * Write device cache file, as required.
+ */
+ if (DCstate == 1 || (DCstate == 3 && dcrd))
+ write_dcache();
+#endif /* defined(HASDCACHE) */
+
+}
+
+
+#if defined(HASDCACHE)
+/*
+ * rereaddev() - reread device names, modes and types
+ */
+
+void
+rereaddev()
+{
+ (void) clr_devtab();
+
+# if defined(DCACHE_CLR)
+ (void) DCACHE_CLR();
+# endif /* defined(DCACHE_CLR) */
+
+ readdev(1);
+ DCunsafe = 0;
+}
+#endif /* defined(HASDCACHE) */
+
+
+/*
+ * rmdupdev() - remove duplicate (major/minor/inode) devices
+ */
+
+static int
+rmdupdev(dp, n, nm)
+ struct l_dev ***dp; /* device table pointers address */
+ int n; /* number of pointers */
+ char *nm; /* device table name for error message */
+{
+
+#if AIXV>=4140
+ struct clone *c, *cp;
+#endif /* AIXV>=4140 */
+
+ int i, j, k;
+ struct l_dev **p;
+
+ for (i = j = 0, p = *dp; i < n ;) {
+ for (k = i + 1; k < n; k++) {
+ if (p[i]->rdev != p[k]->rdev || p[i]->inode != p[k]->inode)
+ break;
+
+#if AIXV>=4140
+ /*
+ * See if we're deleting a duplicate clone device. If so,
+ * delete its clone table entry.
+ */
+ for (c = Clone, cp = (struct clone *)NULL;
+ c;
+ cp = c, c = c->next)
+ {
+ if (c->cd.rdev != p[k]->rdev
+ || c->cd.inode != p[k]->inode
+ || strcmp(c->cd.name, p[k]->name))
+ continue;
+ if (!cp)
+ Clone = c->next;
+ else
+ cp->next = c->next;
+ if (c->cd.name)
+ (void) free((FREE_P *)c->cd.name);
+ (void) free((FREE_P *)c);
+ break;
+ }
+#endif /* AIXV>=4140 */
+
+ }
+ if (i != j)
+ p[j] = p[i];
+ j++;
+ i = k;
+ }
+ if (n == j)
+ return(n);
+ if (!(*dp = (struct l_dev **)realloc((MALLOC_P *)*dp,
+ (MALLOC_S)(j * sizeof(struct l_dev *)))))
+ {
+ (void) fprintf(stderr, "%s: can't realloc %s device pointers\n",
+ Pn, nm);
+ Exit(1);
+ }
+ return(j);
+}
+
+
+#if defined(HASDCACHE) && AIXV>=4140
+/*
+ * rw_clone_sect() - read/write the device cache file clone section
+ */
+
+int
+rw_clone_sect(m)
+ int m; /* mode: 1 = read; 2 = write */
+{
+ char buf[MAXPATHLEN*2], *cp;
+ struct clone *c;
+ int i, len, n;
+
+ if (m == 1) {
+
+ /*
+ * Read the clone section header and validate it.
+ */
+ if (!fgets(buf, sizeof(buf), DCfs)) {
+
+bad_clone_sect:
+
+ if (!Fwarn) {
+ (void) fprintf(stderr,
+ "%s: bad clone section header in %s: ",
+ Pn, DCpath[DCpathX]);
+ safestrprt(buf, stderr, 1);
+ }
+ return(1);
+ }
+ (void) crc(buf, strlen(buf), &DCcksum);
+ len = strlen("clone section: ");
+ if (strncmp(buf, "clone section: ", len) != 0)
+ goto bad_clone_sect;
+ if ((n = atoi(&buf[len])) < 0)
+ goto bad_clone_sect;
+ /*
+ * Read the clone section lines and create the Clone list.
+ */
+ for (i = 0; i < n; i++) {
+ if (!fgets(buf, sizeof(buf), DCfs)) {
+ if (!Fwarn) {
+ (void) fprintf(stderr,
+ "%s: bad clone line in %s: ", Pn, DCpath[DCpathX]);
+ safestrprt(buf, stderr, 1);
+ }
+ return(1);
+ }
+ (void) crc(buf, strlen(buf), &DCcksum);
+ /*
+ * Allocate a clone structure.
+ */
+ if (!(c = (struct clone *)calloc(1, sizeof(struct clone)))) {
+ (void) fprintf(stderr,
+ "%s: no space for cached clone: ", Pn);
+ safestrprt(buf, stderr, 1);
+ Exit(1);
+ }
+ /*
+ * Enter the clone device number.
+ */
+ if (!(cp = x2dev(buf, &c->cd.rdev)) || *cp++ != ' ') {
+
+bad_cached_clone:
+ if (!Fwarn) {
+ (void) fprintf(stderr,
+ "%s: bad cached clone device: ", Pn);
+ safestrprt(buf, stderr, 1);
+ }
+ return(1);
+ }
+ CloneMaj = GET_MAJ_DEV(c->cd.rdev);
+ /*
+ * Enter the clone inode number.
+ */
+ for (c->cd.inode = (INODETYPE)0; *cp != ' '; cp++) {
+ if (*cp < '0' || *cp > '9')
+ goto bad_cached_clone;
+ c->cd.inode = (INODETYPE)((c->cd.inode * 10) + (*cp - '0'));
+ }
+ /*
+ * Enter the clone path name.
+ */
+ if ((len = strlen(++cp)) < 2 || *(cp + len - 1) != '\n') {
+ if (!Fwarn) {
+ (void) fprintf(stderr,
+ "%s: bad cached clone path: ", Pn);
+ safestrprt(buf, stderr, 1);
+ }
+ return(1);
+ }
+ *(cp + len - 1) = '\0';
+ if (!(c->cd.name = mkstrcpy(cp, (MALLOC_S *)NULL))) {
+ (void) fprintf(stderr,
+ "%s: no space for cached clone path: ", Pn);
+ safestrprt(buf, stderr, 1);
+ Exit(1);
+ }
+ c->cd.v = 0;
+ c->next = Clone;
+ Clone = c;
+ if (ClonePtc < 0 && strcmp(c->cd.name, "/dev/ptc") == 0)
+ ClonePtc = GET_MIN_DEV(c->cd.rdev);
+ }
+ return(0);
+ } else if (m == 2) {
+
+ /*
+ * Write the clone section header.
+ */
+ for (c = Clone, n = 0; c; c = c->next, n++)
+ ;
+ (void) snpf(buf, sizeof(buf), "clone section: %d\n", n);
+ if (wr2DCfd(buf, &DCcksum))
+ return(1);
+ /*
+ * Write the clone section lines.
+ */
+ for (c = Clone; c; c = c->next) {
+ (void) snpf(buf, sizeof(buf), "%x %ld %s\n",
+ c->cd.rdev, (long)c->cd.inode, c->cd.name);
+ if (wr2DCfd(buf, &DCcksum))
+ return(1);
+ }
+ return(0);
+ }
+/*
+ * A shouldn't-happen case: mode neither 1 nor 2.
+ */
+ (void) fprintf(stderr, "%s: internal rw_clone_sect error: %d\n",
+ Pn, m);
+ Exit(1);
+}
+#endif /* defined(HASDCACHE) && AIXV>=4140 */
+
+
+#if defined(HASDCACHE)
+/*
+ * vfy_dev() - verify a device table entry (usually when DCunsafe == 1)
+ *
+ * Note: rereads entire device table when an entry can't be verified.
+ */
+
+int
+vfy_dev(dp)
+ struct l_dev *dp; /* device table pointer */
+{
+ struct stat sb;
+
+ if (!DCunsafe || dp->v)
+ return(1);
+
+#if defined(USE_STAT)
+ if (stat(dp->name, &sb) != 0
+#else /* !defined(USE_STAT) */
+ if (lstat(dp->name, &sb) != 0
+#endif /* defined(USE_STAT) */
+
+ || dp->rdev != sb.st_rdev
+ || dp->inode != (INODETYPE)sb.st_ino) {
+ (void) rereaddev();
+ return(0);
+ }
+ dp->v = 1;
+ return(1);
+}
+#endif /* defined(HASDCACHE) */
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