[hackers] [sbase] ed: Use reallocarray || Michael Forney

[git]

commit a8dc42e6b5aa0926ec3bea32dd17bd319d0f3b99
Author:     Michael Forney <mfor...@mforney.org>
AuthorDate: Tue Dec 31 13:41:38 2019 -0800
Commit:     Michael Forney <mfor...@mforney.org>
CommitDate: Tue Dec 31 13:41:38 2019 -0800

    ed: Use reallocarray

diff --git a/ed.c b/ed.c
index b844e86..e998e81 100644
--- a/ed.c
+++ b/ed.c
@@ -204,7 +204,7 @@ makeline(char *s, int *off)
        if (lastidx >= idxsize) {
                lp = NULL;
                if (idxsize <= SIZE_MAX - NUMLINES)
-                   lp = realloc(zero, (idxsize + NUMLINES) * sizeof(*lp));
+                   lp = reallocarray(zero, idxsize + NUMLINES, sizeof(*lp));
                if (!lp)
                        error("out of memory");
                idxsize += NUMLINES;