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sendmail: another update from the maintainer

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function                                             old     new   delta
sendgetmail_main                                    1894    1937     +43
crond_main                                          1416    1423      +7
packed_usage                                       24540   24470     -70
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 50/-70)            Total: -20 bytes
This commit is contained in:
Denis Vlasenko
2008-06-28 21:46:41 +00:00
parent 78ff8197cc
commit 6ea75e2f5d
3 changed files with 82 additions and 68 deletions
Download Patch File Download Diff File Expand all files Collapse all files

84
networking/sendmail.c
View File

@@ -262,32 +262,49 @@ static void pop3_message(const char *filename)
}
#endif
static char *parse_url(char *url, char **user, char **pass)
{
// parse [user[:pass]@]host
// return host
char *s = strchr(url, '@');
*user = *pass = NULL;
if (s) {
*s++ = '\0';
*user = url;
url = s;
s = strchr(*user, ':');
if (s) {
*s++ = '\0';
*pass = s;
}
}
return url;
}
int sendgetmail_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int sendgetmail_main(int argc ATTRIBUTE_UNUSED, char **argv)
{
llist_t *opt_recipients = NULL;
llist_t *opt_attachments = NULL;
char *opt_from;
const char *opt_user;
const char *opt_pass;
char *opt_user;
char *opt_pass;
enum {
OPT_w = 1 << 0, // network timeout
OPT_H = 1 << 1, // server[:port]
OPT_U = 1 << 2, // user
OPT_P = 1 << 3, // password
OPT_X = 1 << 4, // connect using openssl s_client helper
OPT_H = 1 << 1, // [user:password@]server[:port]
OPT_S = 1 << 2, // connect using openssl s_client helper
OPTS_t = 1 << 5, // sendmail: read addresses from body
OPTF_t = 1 << 5, // fetchmail: use "TOP" not "RETR"
OPTS_t = 1 << 3, // sendmail: read addresses from body
OPTF_t = 1 << 3, // fetchmail: use "TOP" not "RETR"
OPTS_s = 1 << 6, // sendmail: subject
OPTF_z = 1 << 6, // fetchmail: delete from server
OPTS_s = 1 << 4, // sendmail: subject
OPTF_z = 1 << 4, // fetchmail: delete from server
OPTS_c = 1 << 7, // sendmail: assumed charset
OPTS_a = 1 << 8, // sendmail: attachment(s)
OPTS_i = 1 << 9, // sendmail: ignore lone dots in message body (implied)
OPTS_c = 1 << 5, // sendmail: assumed charset
OPTS_a = 1 << 6, // sendmail: attachment(s)
OPTS_i = 1 << 7, // sendmail: ignore lone dots in message body (implied)
OPTS_n = 1 << 10, // sendmail: request notification
OPTS_N = 1 << 8, // sendmail: request notification
};
const char *options;
int opts;
@@ -303,18 +320,18 @@ int sendgetmail_main(int argc ATTRIBUTE_UNUSED, char **argv)
// save initial stdin (body or attachements can be piped!)
xdup2(STDIN_FILENO, INITIAL_STDIN_FILENO);
opt_complementary = "w+:a::";
options = "w:H:U:P:Xt" "s:c:a:inf:";
options = "w:H:St" "s:c:a:iN:f:";
// body is pseudo attachment read from stdin
llist_add_to_end(&opt_attachments, (char *)"-");
} else {
// FETCHMAIL
opt_after_connect = NULL;
opt_complementary = "-1:w+:P";
options = "w:H:U:P:Xt" "z";
opt_complementary = "-1:w+";
options = "w:H:St" "z";
}
opts = getopt32(argv, options,
&timeout, &opt_connect, &opt_user, &opt_pass,
&opt_subject, &opt_charset, &opt_attachments, &opt_from
&timeout /* -w */, &opt_connect /* -H */,
&opt_subject, &opt_charset, &opt_attachments, NULL, &opt_from
);
//argc -= optind;
argv += optind;
@@ -326,8 +343,14 @@ int sendgetmail_main(int argc ATTRIBUTE_UNUSED, char **argv)
if (!opt_connect)
opt_connect = "127.0.0.1";
}
// fetch username and password, if any
// NB: parse_url modifies opt_connect[] ONLY if '@' is there.
// Thus "127.0.0.1" won't be modified, an is ok that it is RO.
opt_connect = parse_url((char*)opt_connect, &opt_user, &opt_pass);
// bb_error_msg("H[%s] U[%s] P[%s]", opt_connect, opt_user, opt_pass);
// SSL ordered? ->
if (opts & OPT_X) {
if (opts & OPT_S) {
// ... use openssl helper
launch_helper(xargs);
// no SSL ordered? ->
@@ -340,10 +363,8 @@ int sendgetmail_main(int argc ATTRIBUTE_UNUSED, char **argv)
xdup2(STDIN_FILENO, STDOUT_FILENO);
}
#if ENABLE_FETCHMAIL
// are we sendmail?
if (opt_after_connect)
#endif
if (!ENABLE_FETCHMAIL || opt_after_connect)
/***************************************************
* SENDMAIL
***************************************************/
@@ -364,7 +385,7 @@ int sendgetmail_main(int argc ATTRIBUTE_UNUSED, char **argv)
}
// we didn't use SSL helper? ->
if (!(opts & OPT_X)) {
if (!(opts & OPT_S)) {
// ... wait for initial server OK
smtp_check(NULL, 220);
}
@@ -402,14 +423,13 @@ int sendgetmail_main(int argc ATTRIBUTE_UNUSED, char **argv)
// set sender
// NOTE: if password has not been specified
// then no authentication is possible
code = (opts & OPT_P) ? -1 : 250;
code = (opt_pass) ? -1 : 250;
// first try softly without authentication
while (250 != smtp_checkp("MAIL FROM:<%s>", opt_from, code)) {
// MAIL FROM failed -> authentication needed
// have we got username?
if (!(opts & OPT_U)) {
if (!opt_user) {
// no! fetch it from "from" option
//opts |= OPT_U;
opt_user = xstrdup(opt_from);
*strchrnul(opt_user, '@') = '\0';
}
@@ -450,7 +470,7 @@ int sendgetmail_main(int argc ATTRIBUTE_UNUSED, char **argv)
}
// put notification
if (opts & OPTS_n)
if (opts & OPTS_N)
printf("Disposition-Notification-To: %s\r\n", opt_from);
// make a random string -- it will delimit message parts
@@ -515,7 +535,6 @@ int sendgetmail_main(int argc ATTRIBUTE_UNUSED, char **argv)
* FETCHMAIL
***************************************************/
else {
char *buf;
unsigned nmsg;
char *hostname;
@@ -533,11 +552,14 @@ int sendgetmail_main(int argc ATTRIBUTE_UNUSED, char **argv)
*fargs = *argv;
// authenticate
if (!(opts & OPT_U)) {
//opts |= OPT_U;
if (!opt_user) {
// N.B. IMHO getenv("USER") can be way easily spoofed!
opt_user = bb_getpwuid(NULL, -1, getuid());
}
// password is mandatory
if (!opt_pass) {
bb_error_msg_and_die("no password");
}
// get server greeting
pop3_checkr(NULL, NULL, &buf);