Applied vodz' patches #49 and #50 (with a small correction in runshell.c)

#49: I found one memory overflow and memory leak in "ln" applet.
Last patch reduced also 54 bytes. ;)

#50: I found bug in loginutils/Makefile.in.
New patch have also new function to libbb and
aplied this to applets and other cosmetic changes.

1 files changed, 2 insertions, 8 deletions

diff --git a/coreutils/expr.c b/coreutils/expr.c
index 0299cc73a..55ae3a969 100644
--- a/coreutils/expr.c
+++ b/coreutils/expr.c
@@ -146,12 +146,8 @@ static int null (VALUE *v)
 
 static void tostring (VALUE *v)
 {
-        char *temp;
-
         if (v->type == integer) {
-                temp = xmalloc (4 * (sizeof (int) / sizeof (char)));
-                sprintf (temp, "%d", v->u.i);
-                v->u.s = temp;
+               bb_asprintf (&(v->u.s), "%d", v->u.i);
                 v->type = string;
         }
 }
@@ -377,9 +373,7 @@ static VALUE *eval6 (void)
                 else {
                         v = xmalloc (sizeof(VALUE));
                         v->type = string;
-                        v->u.s = strncpy ((char *) xmalloc (i2->u.i + 1),
-                                l->u.s + i1->u.i - 1, i2->u.i);
-                                v->u.s[i2->u.i] = 0;
+                       v->u.s = xstrndup(l->u.s + i1->u.i - 1, i2->u.i);
                 }
                 freev (l);
                 freev (i1);