4 files changed, 22 insertions, 8 deletions

diff --git a/libbb/getopt32.c b/libbb/getopt32.c
index 378510063..5ab4d66f1 100644
--- a/libbb/getopt32.c
+++ b/libbb/getopt32.c
@@ -89,6 +89,12 @@ getopt32(char **argv, const char *applet_opts, ...)
         root:x:0:0:root:/root:/bin/bash
         user:x:500:500::/home/user:/bin/bash
 
+ "^"    options string is "^optchars""\0""opt_complementary".
+
+ "!"    If the first character in the applet_opts string is a '!',
+        report bad options, missing required options,
+        inconsistent options with all-ones return value (instead of abort.
+
  "+"    If the first character in the applet_opts string is a plus,
         then option processing will stop as soon as a non-option is
         encountered in the argv array.  Useful for applets like env
@@ -96,10 +102,7 @@ getopt32(char **argv, const char *applet_opts, ...)
         env -i ls -d /
         Here we want env to process just the '-i', not the '-d'.
 
- "!"    Report bad options, missing required options,
-        inconsistent options with all-ones return value (instead of abort).
-
- "^"    options string is "^optchars""\0""opt_complementary".
+        (The order of multiple prefixes must be "^!+...")
 
 uint32_t
 getopt32long(char **argv, const char *applet_opts, const char *logopts...)
diff --git a/shell/ash.c b/shell/ash.c
index 05c47950f..bcf7a3470 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -14161,6 +14161,10 @@ readcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
                 }
         }
 
+        if (!ENABLE_ASH_BASH_COMPAT && !argptr) {
+                bb_simple_error_msg("read: need variable name");
+                return 1;
+        }
         params.argv = argptr;
         params.setvar = setvar0;
         params.ifs = bltinlookup("IFS"); /* can be NULL */
diff --git a/shell/hush.c b/shell/hush.c
index 144ad3edd..77921e11c 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -4251,7 +4251,7 @@ static int done_word(struct parse_context *ctx)
                  || endofname(command->argv[0])[0] != '\0'
                 ) {
                         /* bash says just "not a valid identifier" */
-                        syntax_error("not a valid identifier in for");
+                        syntax_error("bad variable name in for");
                         return 1;
                 }
                 /* Force FOR to have just one word (variable name) */
@@ -10799,10 +10799,17 @@ static int FAST_FUNC builtin_read(char **argv)
          */
         params.read_flags = getopt32(argv,
 # if BASH_READ_D
-                "!srn:p:t:u:d:", &params.opt_n, &params.opt_p, &params.opt_t, &params.opt_u, &params.opt_d
+                IF_NOT_HUSH_BASH_COMPAT("^")
+                "!srn:p:t:u:d:" IF_NOT_HUSH_BASH_COMPAT("\0" "-1"/*min 1 arg*/),
+                &params.opt_n, &params.opt_p, &params.opt_t, &params.opt_u, &params.opt_d
 # else
-                "!srn:p:t:u:", &params.opt_n, &params.opt_p, &params.opt_t, &params.opt_u
+                IF_NOT_HUSH_BASH_COMPAT("^")
+                "!srn:p:t:u:" IF_NOT_HUSH_BASH_COMPAT("\0" "-1"/*min 1 arg*/),
+                &params.opt_n, &params.opt_p, &params.opt_t, &params.opt_u
 # endif
+//TODO: print "read: need variable name"
+//for the case of !BASH "read" with no args (now it fails silently)
+//(or maybe extend getopt32() to emit a message if "-1" fails)
         );
         if ((uint32_t)params.read_flags == (uint32_t)-1)
                 return EXIT_FAILURE;
diff --git a/shell/shell_common.c b/shell/shell_common.c
index e3d6783b5..2e36d9208 100644
--- a/shell/shell_common.c
+++ b/shell/shell_common.c
@@ -59,7 +59,7 @@ shell_builtin_read(struct builtin_read_params *params)
         while (*pp) {
                 if (endofname(*pp)[0] != '\0') {
                         /* Mimic bash message */
-                        bb_error_msg("read: '%s': not a valid identifier", *pp);
+                        bb_error_msg("read: '%s': bad variable name", *pp);
                         return (const char *)(uintptr_t)1;
                 }
                 pp++;