1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) 1998 Malcolm Beattie */
6 /* Copyright (C) 1999 - 2018 Exim maintainers */
8 /* Modified by PH to get rid of the "na" usage, March 1999.
9 Modified further by PH for general tidying for Exim 4.
10 Threaded Perl support added by Stefan Traby, Nov 2002
14 /* This Perl add-on can be distributed under the same terms as Exim itself. */
15 /* See the file NOTICE for conditions of use and distribution. */
20 #define EXIM_TRUE TRUE
23 #define EXIM_FALSE FALSE
26 #define EXIM_DEBUG DEBUG
34 #define ERRSV (GvSV(errgv))
37 /* Some people like very old perl versions, so avoid any build side-effects. */
44 # define EXTERN_C extern
47 EXTERN_C
void boot_DynaLoader(pTHX_ CV
*cv
);
50 static PerlInterpreter
*interp_perl
= 0;
59 croak("Usage: Exim::expand_string(string)");
61 str
= expand_string(US
SvPV(ST(0), len
));
62 ST(0) = sv_newmortal();
64 sv_setpv(ST(0), CCS str
);
65 else if (!f
.expand_string_forcedfail
)
66 croak("syntax error in Exim::expand_string argument: %s",
67 expand_string_message
);
75 croak("Usage: Exim::debug_write(string)");
76 debug_printf("%s", US
SvPV(ST(0), len
));
84 croak("Usage: Exim::log_write(string)");
85 log_write(0, LOG_MAIN
, "%s", US
SvPV(ST(0), len
));
88 static void xs_init(pTHX
)
90 char *file
= __FILE__
;
91 newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader
, file
);
92 newXS("Exim::expand_string", xs_expand_string
, file
);
93 newXS("Exim::debug_write", xs_debug_write
, file
);
94 newXS("Exim::log_write", xs_log_write
, file
);
98 init_perl(uschar
*startup_code
)
101 static char *argv
[4] = { "exim-perl" };
105 if (opt_perl_taintmode
) argv
[argc
++] = "-T";
106 argv
[argc
++] = "/dev/null";
109 assert(sizeof(argv
)/sizeof(argv
[0]) > argc
);
111 if (interp_perl
) return 0;
112 interp_perl
= perl_alloc();
113 perl_construct(interp_perl
);
114 perl_parse(interp_perl
, xs_init
, argc
, argv
, 0);
115 perl_run(interp_perl
);
119 /*********************************************************************/
120 /* These lines by PH added to make "warn" output go to the Exim log; I
121 hope this doesn't break anything. */
124 "$SIG{__WARN__} = sub { my($s) = $_[0];"
126 "Exim::log_write($s) };", 0);
128 perl_eval_sv(sv
, G_SCALAR
|G_DISCARD
|G_KEEPERR
);
130 if (SvTRUE(ERRSV
)) return US
SvPV(ERRSV
, len
);
131 /*********************************************************************/
133 sv
= newSVpv(CS startup_code
, 0);
135 perl_eval_sv(sv
, G_SCALAR
|G_DISCARD
|G_KEEPERR
);
137 if (SvTRUE(ERRSV
)) return US
SvPV(ERRSV
, len
);
139 setlocale(LC_ALL
, "C"); /* In case it got changed */
149 perl_destruct(interp_perl
);
150 perl_free(interp_perl
);
155 call_perl_cat(gstring
* yield
, uschar
**errstrp
, uschar
*name
, uschar
**arg
)
165 *errstrp
= US
"the Perl interpreter has not been started";
172 while (*arg
!= NULL
) XPUSHs(newSVpv(CS (*arg
++), 0));
174 items
= perl_call_pv(CS name
, G_SCALAR
|G_EVAL
);
180 *errstrp
= US
SvPV(ERRSV
, len
);
188 str
= US
SvPV(sv
, len
);
189 yield
= string_catn(yield
, str
, (int)len
);
193 setlocale(LC_ALL
, "C"); /* In case it got changed */