From dda52c18d6a434f6f4c947cd75770240a738f9d6 Mon Sep 17 00:00:00 2001
From: ewt <devnull@localhost>
Date: Thu, 19 Jun 1997 22:18:02 +0000
Subject: [PATCH] Changes for OSF/1 getmntinfo_r()

CVS patchset: 1708
CVS date: 1997/06/19 22:18:02
---
 config.h.in      |  3 +++
 configure.in     |  6 ++++--
 lib/fs.c         | 47 ++++++++++++++++++++++++++++++++++-------------
 misc/getmntent.c |  2 +-
 misc/miscfn.h    |  5 ++++-
 5 files changed, 46 insertions(+), 17 deletions(-)

diff --git a/config.h.in b/config.h.in
index 2702668..07b32bf 100644
--- a/config.h.in
+++ b/config.h.in
@@ -93,4 +93,7 @@
 /* Define as one if you have "struct mnttab" (only sco?) */
 #define HAVE_STRUCT_MNTTAB 0
 
+/* Define as one if you have getmntinfo_r() (only osf?) */
+#define HAVE_GETMNTINFO_R 0
+
 #endif
diff --git a/configure.in b/configure.in
index 6393251..2a92e2e 100644
--- a/configure.in
+++ b/configure.in
@@ -277,8 +277,10 @@ fi
 dnl Checks for library functions.
 AC_CHECK_FUNC(inet_aton, AC_DEFINE(HAVE_INET_ATON), MISCOBJS="$MISCOBJS inet_aton.o")
 AC_CHECK_FUNC(realpath, AC_DEFINE(HAVE_REALPATH), MISCOBJS="$MISCOBJS realpath.o")
-AC_CHECK_FUNC(getmntent, AC_DEFINE(HAVE_GETMNTENT), MISCOBJS="$MISCOBJS getmntent.o")
-AC_CHECK_FUNC(mntctl, AC_DEFINE(HAVE_MNTCTL))
+AC_CHECK_FUNC(getmntent, AC_DEFINE(HAVE_GETMNTENT), [
+   AC_CHECK_FUNC(mntctl, AC_DEFINE(HAVE_MNTCTL),[
+       AC_CHECK_FUNC(getmntinfo_r, AC_DEFINE(HAVE_GETMNTINFO_R),
+                 MISCOBJS="$MISCOBJS getmntent.o") ])])
 AC_CHECK_FUNC(strerror, [], MISCOBJS="$MISCOBJS strerror.o")
 AC_CHECK_FUNC(strtol, [], MISCOBJS="$MISCOBJS strtol.o")
 AC_CHECK_FUNC(strtoul, [], MISCOBJS="$MISCOBJS strtoul.o")
diff --git a/lib/fs.c b/lib/fs.c
index 1d88e30..3b34800 100644
--- a/lib/fs.c
+++ b/lib/fs.c
@@ -108,19 +108,30 @@ static int getFilesystemList(void) {
 }
 #else 
 static int getFilesystemList(void) {
-    our_mntent item, * itemptr;
-    FILE * mtab;
     int numAlloced = 10;
     int num = 0;
     struct stat sb;
     int i;
-
-    mtab = fopen(MOUNTED, "r");
-    if (!mtab) {
-	rpmError(RPMERR_MTAB, _("failed to open %s: %s"), MOUNTED, 
-		 strerror(errno));
-	return 1;
-    }
+    char * mntdir;
+    #if GETMNTENT_ONE || GETMNTENT_TWO
+    our_mntent item, * itemptr;
+    FILE * mtab;
+    #elif HAVE_GETMNTINFO_R
+    struct statfs * mounts = NULL;
+    int mntCount = 0, bufSize = 0, flags = MNT_NOWAIT;
+    int nextMount = 0;
+    #endif
+
+    #if GETMNTENT_ONE || GETMNTENT_TWO
+	mtab = fopen(MOUNTED, "r");
+	if (!mtab) {
+	    rpmError(RPMERR_MTAB, _("failed to open %s: %s"), MOUNTED, 
+		     strerror(errno));
+	    return 1;
+	}
+    #elif HAVE_GETMNTINFO_R
+	getmntinfo_r(&mounts, flags, &mntCount, &bufSize);
+    #endif
 
     filesystems = malloc(sizeof(*filesystems) * (numAlloced + 1));
 
@@ -130,13 +141,18 @@ static int getFilesystemList(void) {
 	    itemptr = getmntent(mtab);
 	    if (!itemptr) break;
 	    item = *itemptr;
+	    mntdir = item.our_mntdir;
 	#elif GETMNTENT_TWO
 	    /* Solaris, maybe others */
 	    if (getmntent(mtab, &item)) break;
+	    mntdir = item.our_mntdir;
+	#elif HAVE_GETMNTINFO_R
+	    if (nextMount == mntCount) break;
+	    mntdir = mounts[nextMount++].f_mntonname;
 	#endif
 
-	if (stat(item.our_mntdir, &sb)) {
-	    rpmError(RPMERR_STAT, "failed to stat %s: %s", item.our_mntdir,
+	if (stat(mntdir, &sb)) {
+	    rpmError(RPMERR_STAT, "failed to stat %s: %s", mntdir,
 			strerror(errno));
 
 	    for (i = 0; i < num; i++)
@@ -153,10 +169,15 @@ static int getFilesystemList(void) {
 	}
 
 	filesystems[num].dev = sb.st_dev;
-	filesystems[num++].mntPoint = strdup(item.our_mntdir);
+	filesystems[num++].mntPoint = strdup(mntdir);
     }
 
-    fclose(mtab);
+    #if GETMNTENT_ONE || GETMNTENT_TWO
+	fclose(mtab);
+    #elif HAVE_GETMNTINFO_R
+	free(mounts);
+    #endif
+
     filesystems[num].mntPoint = NULL;
 
     fsnames = malloc(sizeof(*fsnames) * (num + 1));
diff --git a/misc/getmntent.c b/misc/getmntent.c
index ebce8ab..d2455a2 100644
--- a/misc/getmntent.c
+++ b/misc/getmntent.c
@@ -11,7 +11,7 @@
 #define COMMENTCHAR '#'
 #endif
 
-#if HAVE_STRUCT_MNTTAB {
+#if HAVE_STRUCT_MNTTAB 
 our_mntent * getmntent(FILE *filep) {
     static struct mnttab entry;
     static our_mntent item = { entry.mt_filsys };
diff --git a/misc/miscfn.h b/misc/miscfn.h
index 0ca0ef3..80a5194 100644
--- a/misc/miscfn.h
+++ b/misc/miscfn.h
@@ -62,7 +62,10 @@ extern void *myrealloc(void *, size_t);
 #define lchown chown
 #endif
 
-#if HAVE_MNTENT_H || !(HAVE_GETMNTENT) || HAVE_STRUCT_MNTTAB
+#if HAVE_GETMNTINFO_R || HAVE_MNTCTL
+# define GETMNTENT_ONE 0
+# define GETMNTENT_TWO 0
+#elif HAVE_MNTENT_H || !(HAVE_GETMNTENT) || HAVE_STRUCT_MNTTAB
 # if HAVE_MNTENT_H || HAVE_STRUCT_MNTTAB
 #  include <mntent.h>
 #  define our_mntent struct mntent
-- 
2.7.4