Refactor the separator splitting loop of S_incpush() into a S_incpush_use_sep().

Add a parameter to S_incpush() to optionally pass in the length. As S_incpush()
treats the directory parameter as const char, remove some malloc()s elsewhere
that were copying data on the assumption that it was not const safe.

1 files changed, 2 insertions, 1 deletions

diff --git a/proto.h b/proto.h
index a4fc66400a..03904d1c3a 100644
--- a/proto.h
+++ b/proto.h
@@ -4759,7 +4759,8 @@ STATIC void	S_find_beginning(pTHX_ SV* linestr_sv, PerlIO *rsfp)
 	assert(linestr_sv); assert(rsfp)
 
 STATIC void	S_forbid_setid(pTHX_ const char flag, const bool suidscript);
-STATIC void	S_incpush(pTHX_ const char *dir, U32 flags);
+STATIC void	S_incpush(pTHX_ const char *const dir, STRLEN len, U32 flags);
+STATIC void	S_incpush_use_sep(pTHX_ const char *p, U32 flags);
 STATIC void	S_init_interp(pTHX);
 STATIC void	S_init_ids(pTHX);
 STATIC void	S_init_main_stash(pTHX);