diff options
Diffstat (limited to 'networking')
| -rw-r--r-- | networking/sendmail.c | 84 |
1 files changed, 53 insertions, 31 deletions
diff --git a/networking/sendmail.c b/networking/sendmail.c index 071d9d6..b81c852 100644 --- a/networking/sendmail.c +++ b/networking/sendmail.c @@ -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); |