[hackers] [sbase] Fix segmentation fault in paste(1) || Pieter Kockx

[git]

commit d90ba15f2990d7dc06d7c0c7877079e1f8dd3464
Author:     Pieter Kockx <pieterko...@gmail.com>
AuthorDate: Thu Sep 7 19:00:10 2017 +0200
Commit:     Michael Forney <mfor...@mforney.org>
CommitDate: Thu Sep 7 22:58:24 2017 -0700

    Fix segmentation fault in paste(1)
    
    libutil/unescape received a pointer to a a string in
    read-only memory.

diff --git a/paste.c b/paste.c
index 1d4e9f6..b0ac761 100644
--- a/paste.c
+++ b/paste.c
@@ -97,6 +97,7 @@ main(int argc, char *argv[])
                break;
        case 'd':
                adelim = EARGF(usage());
+               unescape(adelim);
                break;
        default:
                usage();
@@ -107,7 +108,6 @@ main(int argc, char *argv[])
 
        /* populate delimiters */
        /* TODO: fix libutf to accept sizes */
-       unescape(adelim);
        delim = ereallocarray(NULL, utflen(adelim) + 1, sizeof(*delim));
        if (!(delimlen = utftorunestr(adelim, delim)))
                usage();