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authorDJ Delorie <dj@delorie.com>2017-01-20 19:52:52 -0500
committerDJ Delorie <dj@delorie.com>2017-01-20 19:55:53 -0500
commitf3bef6a748097d02d196df247f7b292c7b83744c (patch)
treefa997286ae0b251f99055bd35885781382239cb8 /elf
parentaee47c934e6b6256f58a3d75815a43fc33237a80 (diff)
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* elf/dl-tunables.c (tunable_set_val_if_valid_range): Split into ...
(tunable_set_val_if_valid_range_signed) ... this, and ...
(tunable_set_val_if_valid_range_unsigned) ... this.
(tunable_initialize): Call the correct one of the above based on type.
Diffstat (limited to 'elf')
-rw-r--r--elf/dl-tunables.c30
1 files changed, 26 insertions, 4 deletions
diff --git a/elf/dl-tunables.c b/elf/dl-tunables.c
index ba5246a099..cbf4c8e8f2 100644
--- a/elf/dl-tunables.c
+++ b/elf/dl-tunables.c
@@ -172,10 +172,10 @@ tunables_strtoul (const char *nptr)
    explicit constraints of the tunable or with the implicit constraints of its
    type.  */
 static void
-tunable_set_val_if_valid_range (tunable_t *cur, const char *strval,
+tunable_set_val_if_valid_range_signed (tunable_t *cur, const char *strval,
 				int64_t default_min, int64_t default_max)
 {
-  int64_t val = tunables_strtoul (strval);
+  int64_t val = (int64_t) tunables_strtoul (strval);
 
   int64_t min = cur->type.min;
   int64_t max = cur->type.max;
@@ -193,6 +193,28 @@ tunable_set_val_if_valid_range (tunable_t *cur, const char *strval,
     }
 }
 
+static void
+tunable_set_val_if_valid_range_unsigned (tunable_t *cur, const char *strval,
+					 uint64_t default_min, uint64_t default_max)
+{
+  uint64_t val = (uint64_t) tunables_strtoul (strval);
+
+  uint64_t min = cur->type.min;
+  uint64_t max = cur->type.max;
+
+  if (min == max)
+    {
+      min = default_min;
+      max = default_max;
+    }
+
+  if (val >= min && val <= max)
+    {
+      cur->val.numval = val;
+      cur->strval = strval;
+    }
+}
+
 /* Validate range of the input value and initialize the tunable CUR if it looks
    good.  */
 static void
@@ -202,12 +224,12 @@ tunable_initialize (tunable_t *cur, const char *strval)
     {
     case TUNABLE_TYPE_INT_32:
 	{
-	  tunable_set_val_if_valid_range (cur, strval, INT32_MIN, INT32_MAX);
+	  tunable_set_val_if_valid_range_signed (cur, strval, INT32_MIN, INT32_MAX);
 	  break;
 	}
     case TUNABLE_TYPE_SIZE_T:
 	{
-	  tunable_set_val_if_valid_range (cur, strval, 0, SIZE_MAX);
+	  tunable_set_val_if_valid_range_unsigned (cur, strval, 0, SIZE_MAX);
 	  break;
 	}
     case TUNABLE_TYPE_STRING: