[hackers] [sbase] Convert split(1) to parseoffset() || FRIGN

[git]

commit 8125e8829d87e83cb93528d5338b2179f3c76517
Author:     FRIGN <d...@frign.de>
AuthorDate: Wed Sep 30 19:21:06 2015 +0200
Commit:     sin <s...@2f30.org>
CommitDate: Wed Sep 30 19:44:10 2015 +0100

    Convert split(1) to parseoffset()
    
    This drops a lot of duplicate code. Also simplify it in other
    parts of the main arg-handler.

diff --git a/split.c b/split.c
index c5bd82d..69a0ee6 100644
--- a/split.c
+++ b/split.c
@@ -48,10 +48,9 @@ int
 main(int argc, char *argv[])
 {
        FILE *in = stdin, *out = NULL;
-       size_t size = 1000, scale = 1, n;
-       long l;
+       size_t size = 1000, n;
        int ret = 0, ch, plen, slen = 2, always = 0;
-       char name[NAME_MAX + 1], *prefix = "x", *file = NULL, *tmp, *end;
+       char name[NAME_MAX + 1], *prefix = "x", *file = NULL;
 
        ARGBEGIN {
        case 'a':
@@ -59,29 +58,8 @@ main(int argc, char *argv[])
                break;
        case 'b':
                always = 1;
-               tmp = EARGF(usage());
-               l = strtol(tmp, &end, 10);
-               if (l <= 0)
-                       eprintf("invalid number of bytes: %s\n", tmp);
-               size = (size_t)l;
-               if (!*end)
-                       break;
-               switch (toupper((int)*end)) {
-               case 'K':
-                       scale = 1024;
-                       break;
-               case 'M':
-                       scale = 1024L * 1024L;
-                       break;
-               case 'G':
-                       scale = 1024L * 1024L * 1024L;
-                       break;
-               default:
-                       usage();
-               }
-               if (size > (SIZE_MAX / scale))
-                       eprintf("'%s': out of range\n", tmp);
-               size *= scale;
+               if ((size = parseoffset(EARGF(usage()))) < 0)
+                       return 1;
                break;
        case 'd':
                base = 10;
@@ -89,8 +67,7 @@ main(int argc, char *argv[])
                break;
        case 'l':
                always = 0;
-               tmp = EARGF(usage());
-               size = estrtonum(tmp, 1, MIN(LLONG_MAX, SIZE_MAX));
+               size = estrtonum(EARGF(usage()), 1, MIN(LLONG_MAX, SIZE_MAX));
                break;
        default:
                usage();