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-rw-r--r--misc/Makefile2
-rw-r--r--misc/getusershell.c12
-rw-r--r--misc/mntent_r.c12
-rw-r--r--misc/tst-mntent2.c41
4 files changed, 54 insertions, 13 deletions
diff --git a/misc/Makefile b/misc/Makefile
index f9ad0b76fc..9eac1b6275 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -78,7 +78,7 @@ endif
 gpl2lgpl := error.c error.h
 
 tests := tst-dirname tst-tsearch tst-fdset tst-efgcvt tst-mntent tst-hsearch \
-	 tst-error1 tst-pselect tst-insremque
+	 tst-error1 tst-pselect tst-insremque tst-mntent2
 ifeq (no,$(cross-compiling))
 tests: $(objpfx)tst-error1-mem
 endif
diff --git a/misc/getusershell.c b/misc/getusershell.c
index 255b579b1a..636da322f9 100644
--- a/misc/getusershell.c
+++ b/misc/getusershell.c
@@ -98,7 +98,7 @@ initshells()
 	register char **sp, *cp;
 	register FILE *fp;
 	struct stat64 statb;
-	int flen;
+	size_t flen;
 
 	free(shells);
 	shells = NULL;
@@ -114,9 +114,11 @@ initshells()
 		okshells[1] = _PATH_CSHELL;
 		return (char **) okshells;
 	}
-	if ((strings = malloc((u_int)statb.st_size + 1)) == NULL)
+	if (statb.st_size > ~(size_t)0 / sizeof (char *) * 3)
 		goto init_okshells;
-	shells = calloc((unsigned)statb.st_size / 3, sizeof (char *));
+	if ((strings = malloc(statb.st_size + 2)) == NULL)
+		goto init_okshells;
+	shells = malloc(statb.st_size / 3 * sizeof (char *));
 	if (shells == NULL) {
 		free(strings);
 		strings = NULL;
@@ -124,11 +126,11 @@ initshells()
 	}
 	sp = shells;
 	cp = strings;
-	flen = statb.st_size;
+	flen = statb.st_size + 2;
 	while (fgets_unlocked(cp, flen - (cp - strings), fp) != NULL) {
 		while (*cp != '#' && *cp != '/' && *cp != '\0')
 			cp++;
-		if (*cp == '#' || *cp == '\0')
+		if (*cp == '#' || *cp == '\0' || cp[1] == '\0')
 			continue;
 		*sp++ = cp;
 		while (!isspace(*cp) && *cp != '#' && *cp != '\0')
diff --git a/misc/mntent_r.c b/misc/mntent_r.c
index 1476c86ee2..829750b395 100644
--- a/misc/mntent_r.c
+++ b/misc/mntent_r.c
@@ -1,5 +1,6 @@
 /* Utilities for reading/writing fstab, mtab, etc.
-   Copyright (C) 1995-2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1995-2000, 2001, 2002, 2003, 2006
+   Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -278,14 +279,11 @@ __hasmntopt (const struct mntent *mnt, const char *opt)
 
   while ((p = strstr (rest, opt)) != NULL)
     {
-      if (p == rest
-	  || (p[-1] == ','
-	      && (p[optlen] == '\0' ||
-		  p[optlen] == '='  ||
-		  p[optlen] == ',')))
+      if ((p == rest || p[-1] == ',')
+	  && (p[optlen] == '\0' || p[optlen] == '=' || p[optlen] == ','))
 	return p;
 
-      rest = strchr (rest, ',');
+      rest = strchr (p, ',');
       if (rest == NULL)
 	break;
       ++rest;
diff --git a/misc/tst-mntent2.c b/misc/tst-mntent2.c
new file mode 100644
index 0000000000..6c25e0127c
--- /dev/null
+++ b/misc/tst-mntent2.c
@@ -0,0 +1,41 @@
+#include <mntent.h>
+#include <stdio.h>
+#include <string.h>
+
+
+int
+main (void)
+{
+  int result = 0;
+  struct mntent mef;
+
+  mef.mnt_fsname = strdupa ("/dev/sdf6");
+  mef.mnt_dir = strdupa ("/some dir");
+  mef.mnt_type = strdupa ("ext3");
+  mef.mnt_opts = strdupa ("opt1,opt2,noopt=6,rw,norw,brw");
+  mef.mnt_freq = 1;
+  mef.mnt_passno = 2;
+
+#define TEST(opt, found) \
+  if (!!hasmntopt (&mef, (opt)) != (found))				\
+    {									\
+      printf ("Option %s was %sfound\n", (opt), (found) ? "not " : "");	\
+      result = 1;							\
+    }
+
+  TEST ("opt1", 1)
+  TEST ("opt2", 1)
+  TEST ("noopt", 1)
+  TEST ("rw", 1)
+  TEST ("norw", 1)
+  TEST ("brw", 1)
+  TEST ("opt", 0)
+  TEST ("oopt", 0)
+  TEST ("w", 0)
+  TEST ("r", 0)
+  TEST ("br", 0)
+  TEST ("nor", 0)
+  TEST ("or", 0)
+
+  return result;
+}