String-handling: rename string_cat() to string_catn() and intro a new string_cat()

[exim.git] / src / src / perl.c

diff --git a/src/src/perl.c b/src/src/perl.c
index 533d2c47df4aef3699ee6e8feb3444a3ac1487d7..92218a6efb1e5d33ba9c5289dc53a9b7e9337a03 100644 (file)
--- a/src/src/perl.c
+++ b/src/src/perl.c
@@ -1,5 +1,3 @@
-/* $Cambridge: exim/src/src/perl.c,v 1.1 2004/10/07 10:39:01 ph10 Exp $ */
-
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
@@ -15,6 +13,7 @@
 /* This Perl add-on can be distributed under the same terms as Exim itself. */
 /* See the file NOTICE for conditions of use and distribution. */
 
+#include <assert.h>
 #include "exim.h"
 
 #define EXIM_TRUE TRUE
@@ -97,11 +96,17 @@ static void  xs_init(pTHX)
 uschar *
 init_perl(uschar *startup_code)
 {
-  static int argc = 2;
-  static char *argv[3] = { "exim-perl", "/dev/null", 0 };
+  static int argc = 1;
+  static char *argv[4] = { "exim-perl" };
   SV *sv;
   STRLEN len;
 
+  if (opt_perl_taintmode) argv[argc++] = "-T";
+  argv[argc++] = "/dev/null";
+  argv[argc] = 0;
+
+  assert(sizeof(argv)/sizeof(argv[0]) > argc);
+
   if (interp_perl) return 0;
   interp_perl = perl_alloc();
   perl_construct(interp_perl);
@@ -109,11 +114,28 @@ init_perl(uschar *startup_code)
   perl_run(interp_perl);
     {
     dSP;
+
+    /*********************************************************************/
+    /* These lines by PH added to make "warn" output go to the Exim log; I
+    hope this doesn't break anything. */
+
+    sv = newSVpv(
+      "$SIG{__WARN__} = sub { my($s) = $_[0];"
+      "$s =~ s/\\n$//;"
+      "Exim::log_write($s) };", 0);
+    PUSHMARK(SP);
+    perl_eval_sv(sv, G_SCALAR|G_DISCARD|G_KEEPERR);
+    SvREFCNT_dec(sv);
+    if (SvTRUE(ERRSV)) return US SvPV(ERRSV, len);
+    /*********************************************************************/
+
     sv = newSVpv(CS startup_code, 0);
     PUSHMARK(SP);
     perl_eval_sv(sv, G_SCALAR|G_DISCARD|G_KEEPERR);
     SvREFCNT_dec(sv);
     if (SvTRUE(ERRSV)) return US SvPV(ERRSV, len);
+
+    setlocale(LC_ALL, "C");    /* In case it got changed */
     return NULL;
     }
 }
@@ -164,10 +186,11 @@ call_perl_cat(uschar *yield, int *sizep, int *ptrp, uschar **errstrp,
     return NULL;
     }
   str = US SvPV(sv, len);
-  yield = string_cat(yield, sizep, ptrp, str, (int)len);
+  yield = string_catn(yield, sizep, ptrp, str, (int)len);
   FREETMPS;
   LEAVE;
 
+  setlocale(LC_ALL, "C");    /* In case it got changed */
   return yield;
 }