Add -r raw input mode

README.md

@@ -16,7 +16,7 @@ sudo make install
 ## Usage
 
 ```sh
-sbotc [-j] [-T] [-l]
+sbotc [-j] [-T] [-l] [-r]
       [ -n | [-c <cap>] [-k <key>] [-K <keypair_seed>] ]
       [ [-s <host>] [-p <port>] [ -4 | -6 ] | [-u <socket_path>] ]
       [ -a | [-t <type>] <method> [<argument>...] ]

sbotc.1

@@ -48,6 +48,8 @@ standard I/O.
 Send stdin data as JSON.
 .It Fl l
 Don't output newlines after string or JSON packets.
+.It Fl r
+Raw mode. Disables stdin line buffering/editing and echoing.
 .It Fl T
 Test using shs1-testsuite protocol. Instead of connecting to a server and running
 a command, connect to stdio. On successful handshake, output concatenation of

sbotc.c

@@ -25,6 +25,7 @@
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/un.h>
+#include <termios.h>
 #include <unistd.h>
 
 #include <sodium.h>
@@ -104,7 +105,7 @@ static const unsigned char ssb_cap[] = {
 };
 
 static void usage() {
-	fputs("usage: sbotc [-j] [-T] [-l]\n"
+	fputs("usage: sbotc [-j] [-T] [-l] [-r]\n"
 	      "             [ -n | [-c <cap>] [-k <key>] [-K <keypair_seed>] ]\n"
 	      "             [ [-s <host>] [-p <port>] [ -4 | -6 ] | [-u <socket_path>] ]\n"
 	      "             [ -a | [-t <type>] <method> [<argument>...] ]\n", stderr);
@@ -857,7 +858,7 @@ static int muxrpc_write_blob_add(struct boxs *bs, int infd, int outfd, int req_i
 	  in == stream_state_ended_error || out == stream_state_ended_error ? 2 : 1;
 }
 
-static int muxrpc_duplex(struct boxs *bs, int infd, int outfd, enum pkt_type in_ptype, int req_id, bool no_newline) {
+static int muxrpc_duplex(struct boxs *bs, int infd, int outfd, enum pkt_type in_ptype, int req_id, bool no_newline, bool raw) {
 	int rc;
 	fd_set rd;
 	int sfd = bs->s;
@@ -866,7 +867,7 @@ static int muxrpc_duplex(struct boxs *bs, int infd, int outfd, enum pkt_type in_
 	enum stream_state out = stream_state_open;
 
 	while (out == stream_state_open
-	   || (in == stream_state_open && out != stream_state_ended_error)) {
+	   || (!raw && in == stream_state_open && out != stream_state_ended_error)) {
 		FD_ZERO(&rd);
 		if (in == stream_state_open) FD_SET(infd, &rd);
 		if (out == stream_state_open) FD_SET(sfd, &rd);
@@ -957,6 +958,7 @@ int main(int argc, char *argv[]) {
 	bool test = false;
 	bool noauth = false;
 	bool no_newline = false;
+	bool raw = false;
 	bool host_arg = false;
 	bool port_arg = false;
 	bool key_arg = false;
@@ -999,6 +1001,7 @@ int main(int argc, char *argv[]) {
 			case '6': ipv6_arg = true; break;
 			case 'a': passthrough = true; break;
 			case 'l': no_newline = true; break;
+			case 'r': raw = true; break;
 			default: usage();
 		}
 	}
@@ -1134,6 +1137,17 @@ do_tcp_connect:
 
 	muxrpc_call(&bs, method, argument, type, typestr, 1);
 
+	struct termios orig_tc;
+	if (raw) {
+		struct termios raw_tc;
+		rc = tcgetattr(STDIN_FILENO, &orig_tc);
+		if (rc < 0) warnx("tcgetattr");
+		raw_tc = orig_tc;
+		raw_tc.c_lflag &= ~(ICANON | ECHO);
+		rc = tcsetattr(STDIN_FILENO, TCSANOW, &raw_tc);
+		if (rc < 0) warnx("tcgetattr");
+	}
+
 	switch (type) {
 		case muxrpc_type_async:
 			rc = muxrpc_read_async(&bs, STDOUT_FILENO, 1, no_newline);
@@ -1149,10 +1163,15 @@ do_tcp_connect:
 			}
 			break;
 		case muxrpc_type_duplex:
-			rc = muxrpc_duplex(&bs, STDIN_FILENO, STDOUT_FILENO, ptype, 1, no_newline);
+			rc = muxrpc_duplex(&bs, STDIN_FILENO, STDOUT_FILENO, ptype, 1, no_newline, raw);
 			break;
 	}
 
+	if (raw) {
+		rc = tcsetattr(STDIN_FILENO, TCSANOW, &orig_tc);
+		if (rc < 0) warnx("tcsetattr");
+	}
+
 	bs_end(&bs);
 	close(s);
 	return rc;