Audit bb_common_bufsiz usage, add script which looks for misuse.

tr: stop using globals needlessly.
code: -103 bytes

1 files changed, 5 insertions, 4 deletions

diff --git a/networking/hostname.c b/networking/hostname.c
index 50ef7b5d1..862bbdfa2 100644
--- a/networking/hostname.c
+++ b/networking/hostname.c
@@ -29,12 +29,13 @@ static void do_sethostname(char *s, int isfile)
                 }
         } else {
                 f = xfopen(s, "r");
-                while (fgets(bb_common_bufsiz1, sizeof(bb_common_bufsiz1), f) != NULL) {
-                        if (bb_common_bufsiz1[0] == '#') {
+#define strbuf bb_common_bufsiz1
+                while (fgets(strbuf, sizeof(strbuf), f) != NULL) {
+                        if (strbuf[0] == '#') {
                                 continue;
                         }
-                        chomp(bb_common_bufsiz1);
-                        do_sethostname(bb_common_bufsiz1, 0);
+                        chomp(strbuf);
+                        do_sethostname(strbuf, 0);
                 }
                 if (ENABLE_FEATURE_CLEAN_UP)
                         fclose(f);