[newlib-cygwin] Prevent more NULL ptr accesses due to Balloc out of memory

[newlib-cygwin] Prevent more NULL ptr accesses due to Balloc out of memory

[Jeff Johnston]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=1fdf871c9d32fdf4c4aca31be8d40bef5747eaae

commit 1fdf871c9d32fdf4c4aca31be8d40bef5747eaae
Author: Jeff Johnston <jjohnstn@redhat.com>
Date:   Thu Jan 9 15:18:14 2020 -0500

    Prevent more NULL ptr accesses due to Balloc out of memory
    
    - fix gdtoa-gethex.c, ldtoa.c, and strtodg.c to use eBalloc

Diff:
---
 newlib/libc/stdlib/gdtoa-gethex.c |  4 ++--
 newlib/libc/stdlib/ldtoa.c        |  2 +-
 newlib/libc/stdlib/strtodg.c      | 12 ++++++------
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/newlib/libc/stdlib/gdtoa-gethex.c b/newlib/libc/stdlib/gdtoa-gethex.c
index e0c2fff..1d3da28 100644
--- a/newlib/libc/stdlib/gdtoa-gethex.c
+++ b/newlib/libc/stdlib/gdtoa-gethex.c
@@ -129,7 +129,7 @@ increment (struct _reent *ptr,
 #endif
 	{
 		if (b->_wds >= b->_maxwds) {
-			b1 = Balloc(ptr, b->_k+1);
+			b1 = eBalloc(ptr, b->_k+1);
 			Bcopy(b1, b);
 			Bfree(ptr, b);
 			b = b1;
@@ -219,7 +219,7 @@ gethex (struct _reent *ptr, const char **sp, const FPI *fpi,
 	n = s1 - s0 - 1;
 	for(k = 0; n > 7; n >>= 1)
 		k++;
-	b = Balloc(ptr, k);
+	b = eBalloc(ptr, k);
 	x = b->_x;
 	n = 0;
 	L = 0;
diff --git a/newlib/libc/stdlib/ldtoa.c b/newlib/libc/stdlib/ldtoa.c
index 7513862..1cc9715 100644
--- a/newlib/libc/stdlib/ldtoa.c
+++ b/newlib/libc/stdlib/ldtoa.c
@@ -2923,7 +2923,7 @@ stripspaces:
   for (_REENT_MP_RESULT_K (ptr) = 0;
        sizeof (_Bigint) - sizeof (__ULong) + j <= i; j <<= 1)
     _REENT_MP_RESULT_K (ptr)++;
-  _REENT_MP_RESULT (ptr) = Balloc (ptr, _REENT_MP_RESULT_K (ptr));
+  _REENT_MP_RESULT (ptr) = eBalloc (ptr, _REENT_MP_RESULT_K (ptr));
 
 /* Copy from internal temporary buffer to permanent buffer.  */
   outstr = (char *) _REENT_MP_RESULT (ptr);
diff --git a/newlib/libc/stdlib/strtodg.c b/newlib/libc/stdlib/strtodg.c
index 743f60b..0b5af99 100644
--- a/newlib/libc/stdlib/strtodg.c
+++ b/newlib/libc/stdlib/strtodg.c
@@ -63,7 +63,7 @@ sum (struct _reent *p, _Bigint *a, _Bigint *b)
 	if (a->_wds < b->_wds) {
 		c = b; b = a; a = c;
 		}
-	c = Balloc(p, a->_k);
+	c = eBalloc(p, a->_k);
 	c->_wds = a->_wds;
 	carry = 0;
 	xa = a->_x;
@@ -103,7 +103,7 @@ sum (struct _reent *p, _Bigint *a, _Bigint *b)
 #endif
 	if (carry) {
 		if (c->_wds == c->_maxwds) {
-			b = Balloc(p, c->_k + 1);
+			b = eBalloc(p, c->_k + 1);
 			Bcopy(b, c);
 			Bfree(p, c);
 			c = b;
@@ -190,7 +190,7 @@ increment (struct _reent *p, _Bigint *b)
 #endif
 	{
 		if (b->_wds >= b->_maxwds) {
-			b1 = Balloc(p,b->_k+1);
+			b1 = eBalloc(p,b->_k+1);
 			Bcopy(b1,b);
 			Bfree(p,b);
 			b = b1;
@@ -253,7 +253,7 @@ set_ones (struct _reent *p, _Bigint *b, int n)
 	k = (n + ((1 << kshift) - 1)) >> kshift;
 	if (b->_k < k) {
 		Bfree(p,b);
-		b = Balloc(p,k);
+		b = eBalloc(p,k);
 		}
 	k = n >> kshift;
 	if (n &= kmask)
@@ -792,9 +792,9 @@ _strtodg_l (struct _reent *p, const char *s00, char **se, FPI *fpi, Long *exp,
 	bd0 = s2b(p, s0, nd0, nd, y);
 
 	for(;;) {
-		bd = Balloc(p,bd0->_k);
+		bd = eBalloc(p,bd0->_k);
 		Bcopy(bd, bd0);
-		bb = Balloc(p,rvb->_k);
+		bb = eBalloc(p,rvb->_k);
 		Bcopy(bb, rvb);
 		bbbits = rvbits - bb0;
 		bbe = rve + bb0;