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Fix telnet size negotiation

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Kevin Lange 2014-02-14 00:58:56 -08:00
parent 441e61ce2d
commit d9d0d5e3cc
3 changed files with 10 additions and 4 deletions
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3
CHANGELOG
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@ -1,3 +1,6 @@
1.4.1
* Fix telnet size negotiation
1.4 1.4
* Added better terminal size autodetection * Added better terminal size autodetection
* Fixed rendering when requested size was larger than * Fixed rendering when requested size was larger than

2
Makefile
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@ -1,5 +1,5 @@
package = nyancat package = nyancat
version = 1.4 version = 1.4.1
tarname = $(package) tarname = $(package)
distdir = $(tarname)-$(version) distdir = $(tarname)-$(version)

7
src/nyancat.c
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@ -342,7 +342,7 @@ int main(int argc, char ** argv) {
int k, ttype; int k, ttype;
uint32_t option = 0, done = 0, sb_mode = 0, do_echo = 0; uint32_t option = 0, done = 0, sb_mode = 0, do_echo = 0;
/* Various pieces for the telnet communication */ /* Various pieces for the telnet communication */
char sb[1024] = {0}; unsigned char sb[1024] = {0};
short sb_len = 0; short sb_len = 0;
/* Whether or not to show the MOTD intro */ /* Whether or not to show the MOTD intro */
@ -481,7 +481,8 @@ int main(int argc, char ** argv) {
/* This was a response to the NAWS command, meaning /* This was a response to the NAWS command, meaning
* that this should be a window size */ * that this should be a window size */
alarm(2); alarm(2);
terminal_width = sb[2]; terminal_width = (sb[1] << 8) | sb[2];
terminal_height = (sb[3] << 8) | sb[4];
done++; done++;
} }
break; break;
@ -606,7 +607,9 @@ int main(int argc, char ** argv) {
signal(SIGPIPE, SIGPIPE_handler); signal(SIGPIPE, SIGPIPE_handler);
/* Handle window changes */ /* Handle window changes */
if (!telnet) {
signal(SIGWINCH, SIGWINCH_handler); signal(SIGWINCH, SIGWINCH_handler);
}
switch (ttype) { switch (ttype) {
case 1: case 1: