hush: GETOPT_RESET() _after_ getopts too.

NOEXEC'ed applets which use getopt() need this.

function                                             old     new   delta
builtin_getopts                                      403     413     +10

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

4 files changed, 6 insertions, 5 deletions

diff --git a/include/libbb.h b/include/libbb.h
index 95a7470a8..06f887732 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1212,7 +1212,7 @@ uint32_t getopt32long(char **argv, const char *optstring, const char *longopts,
  * By ~2008, OpenBSD 3.4 was changed to survive glibc-like optind = 0
  * (to interpret it as if optreset was set).
  */
-#ifdef __GLIBC__
+#if 1 /*def __GLIBC__*/
 #define GETOPT_RESET() (optind = 0)
 #else /* BSD style */
 #define GETOPT_RESET() (optind = 1)
diff --git a/libbb/getopt32.c b/libbb/getopt32.c
index f778c6e89..378510063 100644
--- a/libbb/getopt32.c
+++ b/libbb/getopt32.c
@@ -517,7 +517,7 @@ vgetopt32(char **argv, const char *applet_opts, const char *applet_long_options,
         }
 
         /* In case getopt32 was already called:
-         * reset the libc getopt() function, which keeps internal state.
+         * reset libc getopt() internal state.
          * run_nofork_applet() does this, but we might end up here
          * also via gunzip_main() -> gzip_main(). Play safe.
          */
diff --git a/shell/hush.c b/shell/hush.c
index 8e0022531..d27550ba0 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -9956,7 +9956,7 @@ Test that VAR is a valid variable name?
          * until we get Nth result (or failure).
          * (N == G.getopt_count is reset to 0 whenever OPTIND is [un]set).
          */
-        optind = 0; /* reset getopt() state */
+        GETOPT_RESET();
         count = 0;
         n = string_array_len(argv);
         do {
@@ -9971,6 +9971,7 @@ Test that VAR is a valid variable name?
         /* Set OPTIND. Prevent resetting of the magic counter! */
         set_local_var_from_halves("OPTIND", utoa(optind));
         G.getopt_count = count; /* "next time, give me N+1'th result" */
+        GETOPT_RESET(); /* just in case */
 
         /* Set OPTARG */
         /* Always set or unset, never left as-is, even on exit/error:
diff --git a/shell/shell_common.c b/shell/shell_common.c
index 7a0799ed5..c978693f9 100644
--- a/shell/shell_common.c
+++ b/shell/shell_common.c
@@ -425,8 +425,8 @@ shell_builtin_ulimit(char **argv)
          * ulimit 123 -c2 -l 456
          */
 
-        /* In case getopt was already called:
-         * reset the libc getopt() function, which keeps internal state.
+        /* In case getopt() was already called:
+         * reset libc getopt() internal state.
          */
         GETOPT_RESET();