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/*++
/* NAME
/* strip_addr 3
/* SUMMARY
/* strip extension from full or localpart-only address
/* SYNOPSIS
/* #include <strip_addr.h>
/*
/* char *strip_addr_internal(address, extension, delimiter_set)
/* const char *address;
/* char **extension;
/* const char *delimiter_set;
/* LEGACY SUPPORT
/* char *strip_addr(address, extension, delimiter_set)
/* const char *address;
/* char **extension;
/* const char *delimiter_set;
/* DESCRIPTION
/* strip_addr*() takes an address and either returns a null
/* pointer when the address contains no address extension,
/* or returns a copy of the address without address extension.
/* The caller is expected to pass the copy to myfree().
/*
/* With strip_addr_internal(), the input and result are in
/* internal form.
/*
/* strip_addr() is a backwards-compatible form for legacy code.
/*
/* Arguments:
/* .IP address
/* Address localpart or user@domain form.
/* .IP extension
/* A null pointer, or the address of a pointer that is set to
/* the address of a dynamic memory copy of the address extension
/* that had to be chopped off.
/* The copy includes the recipient address delimiter.
/* The caller is expected to pass the copy to myfree().
/* .IP delimiter_set
/* Set of recipient address delimiter characters.
/* SEE ALSO
/* split_addr(3) strip extension from localpart
/* 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>
#include <string.h>
/* Utility library. */
#include <mymalloc.h>
/* Global library. */
#include <split_addr.h>
#include <strip_addr.h>
/* strip_addr - strip extension from address */
char *strip_addr_internal(const char *full, char **extension,
const char *delimiter_set)
{
char *ratsign;
char *extent;
char *saved_ext;
char *stripped;
/*
* A quick test to eliminate inputs without delimiter anywhere.
*/
if (*delimiter_set == 0 || full[strcspn(full, delimiter_set)] == 0) {
stripped = saved_ext = 0;
} else {
stripped = mystrdup(full);
if ((ratsign = strrchr(stripped, '@')) != 0)
*ratsign = 0;
if ((extent = split_addr(stripped, delimiter_set)) != 0) {
extent -= 1;
if (extension) {
*extent = full[strlen(stripped)];
saved_ext = mystrdup(extent);
*extent = 0;
} else
saved_ext = 0;
if (ratsign != 0) {
*ratsign = '@';
memmove(extent, ratsign, strlen(ratsign) + 1);
}
} else {
myfree(stripped);
stripped = saved_ext = 0;
}
}
if (extension)
*extension = saved_ext;
return (stripped);
}
#ifdef TEST
#include <msg.h>
#include <mail_params.h>
int main(int unused_argc, char **unused_argv)
{
char *extension;
char *stripped;
char *delim = "+-";
#define NO_DELIM ""
/*
* No static initializer, because this is owned by a library.
*/
var_double_bounce_sender = DEF_DOUBLE_BOUNCE;
/*
* Incredible. This function takes only three arguments, and the tests
* already take more lines of code than the code being tested.
*/
stripped = strip_addr_internal("foo", (char **) 0, NO_DELIM);
if (stripped != 0)
msg_panic("strip_addr botch 1");
stripped = strip_addr_internal("foo", &extension, NO_DELIM);
if (stripped != 0)
msg_panic("strip_addr botch 2");
if (extension != 0)
msg_panic("strip_addr botch 3");
stripped = strip_addr_internal("foo", (char **) 0, delim);
if (stripped != 0)
msg_panic("strip_addr botch 4");
stripped = strip_addr_internal("foo", &extension, delim);
if (stripped != 0)
msg_panic("strip_addr botch 5");
if (extension != 0)
msg_panic("strip_addr botch 6");
stripped = strip_addr_internal("foo@bar", (char **) 0, NO_DELIM);
if (stripped != 0)
msg_panic("strip_addr botch 7");
stripped = strip_addr_internal("foo@bar", &extension, NO_DELIM);
if (stripped != 0)
msg_panic("strip_addr botch 8");
if (extension != 0)
msg_panic("strip_addr botch 9");
stripped = strip_addr_internal("foo@bar", (char **) 0, delim);
if (stripped != 0)
msg_panic("strip_addr botch 10");
stripped = strip_addr_internal("foo@bar", &extension, delim);
if (stripped != 0)
msg_panic("strip_addr botch 11");
if (extension != 0)
msg_panic("strip_addr botch 12");
stripped = strip_addr_internal("foo-ext", (char **) 0, NO_DELIM);
if (stripped != 0)
msg_panic("strip_addr botch 13");
stripped = strip_addr_internal("foo-ext", &extension, NO_DELIM);
if (stripped != 0)
msg_panic("strip_addr botch 14");
if (extension != 0)
msg_panic("strip_addr botch 15");
stripped = strip_addr_internal("foo-ext", (char **) 0, delim);
if (stripped == 0)
msg_panic("strip_addr botch 16");
msg_info("wanted: foo-ext -> %s", "foo");
msg_info("strip_addr foo-ext -> %s", stripped);
myfree(stripped);
stripped = strip_addr_internal("foo-ext", &extension, delim);
if (stripped == 0)
msg_panic("strip_addr botch 17");
if (extension == 0)
msg_panic("strip_addr botch 18");
msg_info("wanted: foo-ext -> %s %s", "foo", "-ext");
msg_info("strip_addr foo-ext -> %s %s", stripped, extension);
myfree(stripped);
myfree(extension);
stripped = strip_addr_internal("foo-ext@bar", (char **) 0, NO_DELIM);
if (stripped != 0)
msg_panic("strip_addr botch 19");
stripped = strip_addr_internal("foo-ext@bar", &extension, NO_DELIM);
if (stripped != 0)
msg_panic("strip_addr botch 20");
if (extension != 0)
msg_panic("strip_addr botch 21");
stripped = strip_addr_internal("foo-ext@bar", (char **) 0, delim);
if (stripped == 0)
msg_panic("strip_addr botch 22");
msg_info("wanted: foo-ext@bar -> %s", "foo@bar");
msg_info("strip_addr foo-ext@bar -> %s", stripped);
myfree(stripped);
stripped = strip_addr_internal("foo-ext@bar", &extension, delim);
if (stripped == 0)
msg_panic("strip_addr botch 23");
if (extension == 0)
msg_panic("strip_addr botch 24");
msg_info("wanted: foo-ext@bar -> %s %s", "foo@bar", "-ext");
msg_info("strip_addr foo-ext@bar -> %s %s", stripped, extension);
myfree(stripped);
myfree(extension);
stripped = strip_addr_internal("foo+ext@bar", &extension, delim);
if (stripped == 0)
msg_panic("strip_addr botch 25");
if (extension == 0)
msg_panic("strip_addr botch 26");
msg_info("wanted: foo+ext@bar -> %s %s", "foo@bar", "+ext");
msg_info("strip_addr foo+ext@bar -> %s %s", stripped, extension);
myfree(stripped);
myfree(extension);
stripped = strip_addr_internal("foo bar+ext", &extension, delim);
if (stripped == 0)
msg_panic("strip_addr botch 27");
if (extension == 0)
msg_panic("strip_addr botch 28");
msg_info("wanted: foo bar+ext -> %s %s", "foo bar", "+ext");
msg_info("strip_addr foo bar+ext -> %s %s", stripped, extension);
myfree(stripped);
myfree(extension);
return (0);
}
#endif
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