diff options
Diffstat (limited to 'mailutils/sendmail.c')
| -rw-r--r-- | mailutils/sendmail.c | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/mailutils/sendmail.c b/mailutils/sendmail.c index 0170f2870..1dbaf595c 100644 --- a/mailutils/sendmail.c +++ b/mailutils/sendmail.c @@ -36,7 +36,9 @@ //usage: "\n openssl s_client -quiet -tls1 -connect smtp.gmail.com:465" //usage: "\n $SMTP_ANTISPAM_DELAY: seconds to wait after helper connect" //usage: "\n -S HOST[:PORT] Server (default $SMTPHOST or 127.0.0.1)" -//usage: "\n -amLOGIN Log in using AUTH LOGIN (-amCRAM-MD5 not supported)" +//usage: "\n -amLOGIN Log in using AUTH LOGIN" +//usage: "\n -amPLAIN or AUTH PLAIN" +//usage: "\n (-amCRAM-MD5 not supported)" //usage: "\n -auUSER Username for AUTH" //usage: "\n -apPASS Password for AUTH" //usage: "\n" @@ -248,6 +250,10 @@ int sendmail_main(int argc UNUSED_PARAM, char **argv) OPT_S = 1 << 6, // specify connection string OPT_a = 1 << 7, // authentication tokens OPT_v = 1 << 8, // verbosity + //--- from -am + OPT_am_mask = 3 << 14, // AUTH method + OPT_am_login = 0 << 14, // AUTH LOGIN (default) + OPT_am_plain = 1 << 14, // AUTH PLAIN }; // init global variables @@ -286,9 +292,12 @@ int sendmail_main(int argc UNUSED_PARAM, char **argv) G.user = xstrdup(a+1); if ('p' == a[0]) G.pass = xstrdup(a+1); - // N.B. we support only AUTH LOGIN so far - //if ('m' == a[0]) - // G.method = xstrdup(a+1); + if ('m' == a[0]) { + if (strcasecmp("plain", a+1) == 0) + opts |= OPT_am_plain; + else if (strcasecmp("login", a+1) != 0) + bb_error_msg_and_die("unsupported AUTH method %s", a+1); + } } // N.B. list == NULL here //bb_error_msg("OPT[%x] AU[%s], AP[%s], AM[%s], ARGV[%s]", opts, au, ap, am, *argv); @@ -348,13 +357,28 @@ int sendmail_main(int argc UNUSED_PARAM, char **argv) // perform authentication if (opts & OPT_a) { - smtp_check("AUTH LOGIN", 334); // we must read credentials unless they are given via -a[up] options if (!G.user || !G.pass) get_cred_or_die(4); - encode_base64(NULL, G.user, NULL); - smtp_check("", 334); - encode_base64(NULL, G.pass, NULL); + if ((opts & OPT_am_mask) == OPT_am_plain) { + char *plain_auth; + size_t user_len, pass_len; + user_len = strlen(G.user); + pass_len = strlen(G.pass); + smtp_check("AUTH PLAIN", 334); + // use \1 as placeholders for \0 (format string is NUL-terminated) + plain_auth = xasprintf("\1%s\1%s", G.user, G.pass); + // substitute placeholders + plain_auth[0] = '\0'; + plain_auth[1 + user_len] = '\0'; + encode_n_base64(NULL, plain_auth, 1 + user_len + 1 + pass_len, NULL); + free(plain_auth); + } else if ((opts & OPT_am_mask) == OPT_am_login) { + smtp_check("AUTH LOGIN", 334); + encode_base64(NULL, G.user, NULL); + smtp_check("", 334); + encode_base64(NULL, G.pass, NULL); + } smtp_check("", 235); } |