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Implement STARTTLS for certain protocols, currently only supporting SMTP.

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This commit is contained in:
Richard Levitte 2001-11-14 13:57:52 +00:00
parent 475918410b
commit 135c0af1bb
1 changed files with 33 additions and 2 deletions
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35
apps/s_client.c
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@ -210,6 +210,10 @@ static void sc_usage(void)
BIO_printf(bio_err," -serverpref - Use server's cipher preferences (only SSLv2)\n");
BIO_printf(bio_err," -cipher - preferred cipher to use, use the 'openssl ciphers'\n");
BIO_printf(bio_err," command to see what is available\n");
BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n");
BIO_printf(bio_err," for those protocols that support it, where\n");
BIO_printf(bio_err," 'prot' defines which one to assume. Currently,\n");
BIO_printf(bio_err," only \"smtp\" is supported.\n");
BIO_printf(bio_err," -engine id - Initialise and use the specified engine\n");
BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
@ -223,7 +227,7 @@ int MAIN(int argc, char **argv)
SSL *con=NULL,*con2=NULL;
X509_STORE *store = NULL;
int s,k,width,state=0;
char *cbuf=NULL,*sbuf=NULL;
char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
int cbuf_len,cbuf_off;
int sbuf_len,sbuf_off;
fd_set readfds,writefds;
@ -237,6 +241,7 @@ int MAIN(int argc, char **argv)
int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
SSL_CTX *ctx=NULL;
int ret=1,in_init=1,i,nbio_test=0;
int smtp_starttls = 0;
int prexit = 0, vflags = 0;
SSL_METHOD *meth=NULL;
BIO *sbio;
@ -267,7 +272,8 @@ int MAIN(int argc, char **argv)
bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
if ( ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
{
BIO_printf(bio_err,"out of memory\n");
goto end;
@ -389,6 +395,15 @@ int MAIN(int argc, char **argv)
else if (strcmp(*argv,"-nbio") == 0)
{ c_nbio=1; }
#endif
else if (strcmp(*argv,"-starttls") == 0)
{
if (--argc < 1) goto bad;
++argv;
if (strcmp(*argv,"smtp") == 0)
smtp_starttls = 1;
else
goto bad;
}
else if (strcmp(*argv,"-engine") == 0)
{
if (--argc < 1) goto bad;
@ -552,6 +567,14 @@ re_start:
sbuf_len=0;
sbuf_off=0;
/* This is an ugly hack that does a lot of assumptions */
if (smtp_starttls)
{
BIO_read(sbio,mbuf,BUFSIZZ);
BIO_printf(sbio,"STARTTLS\r\n");
BIO_read(sbio,sbuf,BUFSIZZ);
}
for (;;)
{
FD_ZERO(&readfds);
@ -571,6 +594,13 @@ re_start:
print_stuff(bio_c_out,con,full_log);
if (full_log > 0) full_log--;
if (smtp_starttls)
{
BIO_printf(bio_err,"%s",mbuf);
/* We don't need to know any more */
smtp_starttls = 0;
}
if (reconnect)
{
reconnect--;
@ -861,6 +891,7 @@ end:
if (ctx != NULL) SSL_CTX_free(ctx);
if (cbuf != NULL) { memset(cbuf,0,BUFSIZZ); OPENSSL_free(cbuf); }
if (sbuf != NULL) { memset(sbuf,0,BUFSIZZ); OPENSSL_free(sbuf); }
if (mbuf != NULL) { memset(mbuf,0,BUFSIZZ); OPENSSL_free(mbuf); }
if (bio_c_out != NULL)
{
BIO_free(bio_c_out);