diff options
| author | Yang Tse <yangsita@gmail.com> | 2006-07-12 07:33:54 +0000 |
|---|---|---|
| committer | Yang Tse <yangsita@gmail.com> | 2006-07-12 07:33:54 +0000 |
| commit | f975fd03a15f3c4792c0f99d734e663440afaf40 (patch) | |
| tree | 122498d69e64cc0a1cb1eeb455e5301758ef4fc4 | |
| parent | 8272874704485b57da9c3b4ea9a2511f27cc8045 (diff) | |
Read the return value of the swrite() macro and 'print' a message in case of failure.
| -rw-r--r-- | lib/telnet.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/telnet.c b/lib/telnet.c index 0b57f7706..29e053e15 100644 --- a/lib/telnet.c +++ b/lib/telnet.c @@ -71,6 +71,7 @@ #include "transfer.h" #include "sendf.h" #include "telnet.h" +#include "connect.h" #define _MPRINTF_REPLACE /* use our functions only */ #include <curl/mprintf.h> @@ -290,12 +291,18 @@ static void send_negotiation(struct connectdata *conn, int cmd, int option) { unsigned char buf[3]; ssize_t bytes_written; + int err; + struct SessionHandle *data = conn->data; buf[0] = CURL_IAC; buf[1] = cmd; buf[2] = option; bytes_written = swrite(conn->sock[FIRSTSOCKET], buf, 3); + if(bytes_written < 0) { + err = Curl_sockerrno(); + failf(data,"Sending data failed (%d)",err); + } printoption(conn->data, "SENT", cmd, option); } @@ -847,6 +854,7 @@ static void suboption(struct connectdata *conn) ssize_t bytes_written; size_t len; size_t tmplen; + int err; char varname[128]; char varval[128]; struct SessionHandle *data = conn->data; @@ -860,6 +868,10 @@ static void suboption(struct connectdata *conn) "%c%c%c%c%s%c%c", CURL_IAC, CURL_SB, CURL_TELOPT_TTYPE, CURL_TELQUAL_IS, tn->subopt_ttype, CURL_IAC, CURL_SE); bytes_written = swrite(conn->sock[FIRSTSOCKET], temp, len); + if(bytes_written < 0) { + err = Curl_sockerrno(); + failf(data,"Sending data failed (%d)",err); + } printsub(data, '>', &temp[2], len-2); break; case CURL_TELOPT_XDISPLOC: @@ -868,6 +880,10 @@ static void suboption(struct connectdata *conn) "%c%c%c%c%s%c%c", CURL_IAC, CURL_SB, CURL_TELOPT_XDISPLOC, CURL_TELQUAL_IS, tn->subopt_xdisploc, CURL_IAC, CURL_SE); bytes_written = swrite(conn->sock[FIRSTSOCKET], temp, len); + if(bytes_written < 0) { + err = Curl_sockerrno(); + failf(data,"Sending data failed (%d)",err); + } printsub(data, '>', &temp[2], len-2); break; case CURL_TELOPT_NEW_ENVIRON: @@ -891,6 +907,10 @@ static void suboption(struct connectdata *conn) "%c%c", CURL_IAC, CURL_SE); len += 2; bytes_written = swrite(conn->sock[FIRSTSOCKET], temp, len); + if(bytes_written < 0) { + err = Curl_sockerrno(); + failf(data,"Sending data failed (%d)",err); + } printsub(data, '>', &temp[2], len-2); break; } |