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/*++
/* NAME
/* ehlo_mask 3
/* SUMMARY
/* map EHLO keywords to bit mask
/* SYNOPSIS
/* #include <ehlo_mask.h>
/*
/* #define EHLO_MASK_8BITMIME (1<<0)
/* #define EHLO_MASK_PIPELINING (1<<1)
/* #define EHLO_MASK_SIZE (1<<2)
/* #define EHLO_MASK_VRFY (1<<3)
/* #define EHLO_MASK_ETRN (1<<4)
/* #define EHLO_MASK_AUTH (1<<5)
/* #define EHLO_MASK_VERP (1<<6)
/* #define EHLO_MASK_STARTTLS (1<<7)
/* #define EHLO_MASK_XCLIENT (1<<8)
/* #define EHLO_MASK_XFORWARD (1<<9)
/* #define EHLO_MASK_ENHANCEDSTATUSCODES (1<<10)
/* #define EHLO_MASK_DSN (1<<11)
/* #define EHLO_MASK_SMTPUTF8 (1<<12)
/* #define EHLO_MASK_CHUNKING (1<<13)
/* #define EHLO_MASK_SILENT (1<<15)
/*
/* int ehlo_mask(keyword_list)
/* const char *keyword_list;
/*
/* const char *str_ehlo_mask(bitmask)
/* int bitmask;
/* DESCRIPTION
/* ehlo_mask() computes the bit-wise OR of the masks that correspond
/* to the names listed in the \fIkeyword_list\fR argument, separated by
/* comma and/or whitespace characters. Undefined names are silently
/* ignored.
/*
/* str_ehlo_mask() translates a mask into its equivalent names.
/* The result is written to a static buffer that is overwritten
/* upon each call. Undefined bits cause a fatal run-time error.
/* DIAGNOSTICS
/* Fatal: str_ehlo_mask() found an undefined bit.
/* LICENSE
/* .ad
/* .fi
/* The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/* Wietse Venema
/* IBM T.J. Watson Research
/* P.O. Box 704
/* Yorktown Heights, NY 10598, USA
/*
/* Wietse Venema
/* Google, Inc.
/* 111 8th Avenue
/* New York, NY 10011, USA
/*--*/
/* System library.*/
#include <sys_defs.h>
/* Utility library. */
#include <name_mask.h>
/* Global library. */
#include <ehlo_mask.h>
/*
* The lookup table.
*/
static const NAME_MASK ehlo_mask_table[] = {
"8BITMIME", EHLO_MASK_8BITMIME,
"AUTH", EHLO_MASK_AUTH,
"ETRN", EHLO_MASK_ETRN,
"PIPELINING", EHLO_MASK_PIPELINING,
"SIZE", EHLO_MASK_SIZE,
"VERP", EHLO_MASK_VERP,
"VRFY", EHLO_MASK_VRFY,
"XCLIENT", EHLO_MASK_XCLIENT,
"XFORWARD", EHLO_MASK_XFORWARD,
"STARTTLS", EHLO_MASK_STARTTLS,
"ENHANCEDSTATUSCODES", EHLO_MASK_ENHANCEDSTATUSCODES,
"DSN", EHLO_MASK_DSN,
"EHLO_MASK_SMTPUTF8", EHLO_MASK_SMTPUTF8,
"SMTPUTF8", EHLO_MASK_SMTPUTF8,
"CHUNKING", EHLO_MASK_CHUNKING,
"SILENT-DISCARD", EHLO_MASK_SILENT, /* XXX In-band signaling */
0,
};
/* ehlo_mask - string to bit mask */
int ehlo_mask(const char *mask_str)
{
/*
* We allow "STARTTLS" besides "starttls, because EHLO keywords are often
* spelled in uppercase. We ignore non-existent EHLO keywords so people
* can switch between Postfix versions without trouble.
*/
return (name_mask_opt("ehlo string mask", ehlo_mask_table,
mask_str, NAME_MASK_ANY_CASE | NAME_MASK_IGNORE));
}
/* str_ehlo_mask - mask to string */
const char *str_ehlo_mask(int mask_bits)
{
/*
* We don't allow non-existent bits. Doing so makes no sense at this
* time.
*/
return (str_name_mask("ehlo bitmask", ehlo_mask_table, mask_bits));
}
#ifdef TEST
/*
* Stand-alone test program.
*/
#include <stdlib.h>
#include <vstream.h>
#include <vstring.h>
#include <vstring_vstream.h>
int main(int unused_argc, char **unused_argv)
{
int mask_bits;
VSTRING *buf = vstring_alloc(1);
const char *mask_string;
while (vstring_get_nonl(buf, VSTREAM_IN) != VSTREAM_EOF) {
mask_bits = ehlo_mask(vstring_str(buf));
mask_string = str_ehlo_mask(mask_bits);
vstream_printf("%s -> 0x%x -> %s\n", vstring_str(buf), mask_bits,
mask_string);
vstream_fflush(VSTREAM_OUT);
}
vstring_free(buf);
exit(0);
}
#endif
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