sh: Fix crash with empty functions (f() { }) introduced in r196483

Empty pairs of braces are represented by a NULL node pointer, just like
empty lines at the top level.

Support for empty pairs of braces may be removed later. They make the code
more complex, have inconsistent behaviour (may or may not change $?), are
not specified by POSIX and are not allowed by some other shells like bash,
dash and ksh93.

Reported by:	kan

1 files changed, 1 insertions, 1 deletions

diff --git a/bin/sh/exec.c b/bin/sh/exec.c
index 639a23cf78f3..810782166a9f 100644
--- a/bin/sh/exec.c
+++ b/bin/sh/exec.c
@@ -286,7 +286,7 @@ printentry(struct tblentry *cmdp, int verbose)
 		out1fmt("function %s", cmdp->cmdname);
 		if (verbose) {
 			INTOFF;
-			name = commandtext(&cmdp->param.func->n);
+			name = commandtext(getfuncnode(cmdp->param.func));
 			out1c(' ');
 			out1str(name);
 			ckfree(name);