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/*++
/* NAME
/* mail_addr_crunch 3
/* SUMMARY
/* parse and canonicalize addresses, apply address extension
/* SYNOPSIS
/* #include <mail_addr_crunch.h>
/*
/* ARGV *mail_addr_crunch(string, extension)
/* const char *string;
/* const char *extension;
/* DESCRIPTION
/* mail_addr_crunch() parses a string with zero or more addresses,
/* rewrites each address to canonical form, and optionally applies
/* an address extension to each resulting address. Input and result
/* are in external (quoted) format. The caller is expected to pass
/* the result to argv_free().
/*
/* Arguments:
/* .IP string
/* A string with zero or more addresses in RFC 822 (external) format.
/* .IP extension
/* A null pointer, or an address extension (including the recipient
/* address delimiter) that is propagated to all result addresses.
/* DIAGNOSTICS
/* Fatal error: out of memory.
/* SEE ALSO
/* tok822_parse(3), address parser
/* canon_addr(3), address canonicalization
/* 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
/*--*/
/* System library. */
#include <sys_defs.h>
#include <string.h>
/* Utility library. */
#include <mymalloc.h>
#include <argv.h>
#include <vstring.h>
/* Global library. */
#include <tok822.h>
#include <canon_addr.h>
#include <mail_addr_crunch.h>
/* mail_addr_crunch - break string into addresses, optionally add extension */
ARGV *mail_addr_crunch(const char *string, const char *extension)
{
VSTRING *extern_addr = vstring_alloc(100);
VSTRING *canon_addr = vstring_alloc(100);
ARGV *argv = argv_alloc(1);
TOK822 *tree;
TOK822 **addr_list;
TOK822 **tpp;
char *ratsign;
int extlen;
if (extension)
extlen = strlen(extension);
#define STR(x) vstring_str(x)
/*
* Parse the string, rewrite each address to canonical form, and convert
* the result to external (quoted) form. Optionally apply the extension
* to each address found.
*/
tree = tok822_parse(string);
addr_list = tok822_grep(tree, TOK822_ADDR);
for (tpp = addr_list; *tpp; tpp++) {
tok822_externalize(extern_addr, tpp[0]->head, TOK822_STR_DEFL);
canon_addr_external(canon_addr, STR(extern_addr));
if (extension) {
if ((ratsign = strrchr(STR(canon_addr), '@')) == 0) {
vstring_strcat(canon_addr, extension);
} else {
VSTRING_SPACE(canon_addr, extlen + 1);
ratsign = strrchr(STR(canon_addr), '@');
memmove(ratsign + extlen, ratsign, strlen(ratsign) + 1);
memcpy(ratsign, extension, extlen);
VSTRING_SKIP(canon_addr);
}
}
argv_add(argv, STR(canon_addr), ARGV_END);
}
argv_terminate(argv);
myfree((char *) addr_list);
tok822_free_tree(tree);
vstring_free(canon_addr);
vstring_free(extern_addr);
return (argv);
}
#ifdef TEST
/*
* Stand-alone test program, sort of interactive.
*/
#include <unistd.h>
#include <msg.h>
#include <vstream.h>
#include <vstring_vstream.h>
#include <mail_conf.h>
#include <mail_params.h>
int main(int unused_argc, char **unused_argv)
{
VSTRING *extension = vstring_alloc(1);
VSTRING *buf = vstring_alloc(1);
ARGV *argv;
char **cpp;
mail_conf_read();
if (chdir(var_queue_dir) < 0)
msg_fatal("chdir %s: %m", var_queue_dir);
vstream_printf("extension: (CR for none): ");
vstream_fflush(VSTREAM_OUT);
if (vstring_get_nonl(extension, VSTREAM_IN) == VSTREAM_EOF)
exit(0);
vstream_printf("print strings to be translated, one per line\n");
vstream_fflush(VSTREAM_OUT);
while (vstring_get_nonl(buf, VSTREAM_IN) != VSTREAM_EOF) {
argv = mail_addr_crunch(STR(buf), VSTRING_LEN(extension) ? STR(extension) : 0);
for (cpp = argv->argv; *cpp; cpp++)
vstream_printf(" %s\n", *cpp);
vstream_fflush(VSTREAM_OUT);
}
}
#endif
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