initial commit

2026-06-21 19:36:29 +03:00 · 2020-05-10 01:48:59 +03:00
parent 45c49bdb98
commit d4e0ae967d
8 changed files with 422 additions and 0 deletions
--- a/main.c
+++ b/main.c
@@ -0,0 +1,83 @@
+/*
+ * This file is part of the ttyterm project.
+ * Copyright 2020 Edward V. Emelianov <edward.emelianoff@gmail.com>.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <signal.h>
+#include <stdio.h>
+#include <string.h> // strcmp
+#include <usefull_macros.h>
+#include "cmdlnopts.h"
+#include "tty.h"
+
+// we don't need more than 64 bytes for TTY input buffer - USB CDC can't transmit more in one packet
+#define BUFLEN 65
+
+static TTY_descr *dev = NULL;
+
+void signals(int signo){
+    restore_console();
+    if(dev) close_tty(&dev);
+    exit(signo);
+}
+
+typedef enum{
+    EOL_N = 0,
+    EOL_R,
+    EOL_RN
+} eol_t;
+
+int main(int argc, char **argv){
+    glob_pars *G = NULL; // default parameters see in cmdlnopts.c
+    initial_setup();
+    G = parse_args(argc, argv);
+    dev = new_tty(G->ttyname, G->speed, BUFLEN);
+    if(!dev || !(dev = tty_open(dev, 1))) return 1; // open exclusively
+    eol_t eol = EOL_N;
+    if(strcmp(G->eol, "n")){ // change eol
+        if(strcmp(G->eol, "r") == 0) eol = EOL_R;
+        else if(strcmp(G->eol, "rn") == 0) eol = EOL_RN;
+        else ERRX("End of line should be \"r\", \"n\" or \"rn\"");
+    }
+    signal(SIGTERM, signals); // kill (-15) - quit
+    signal(SIGHUP, signals);  // hup - quit
+    signal(SIGINT, signals);  // ctrl+C - quit
+    signal(SIGQUIT, signals); // ctrl+\ - quit
+    signal(SIGTSTP, SIG_IGN); // ignore ctrl+Z
+    setup_con();
+    const char r = '\r';
+    while(1){
+        int b;
+        int l = read_ttyX(dev, &b);
+        if(l < 0) signals(9);
+        if(b > -1){
+            char c = (char)b;
+            if(c == '\n' && eol != EOL_N){ // !\n
+                if(eol == EOL_R) c = '\r'; // \r
+                else if(write_tty(dev->comfd, &r, 1)) WARN("write_tty()"); // \r\n
+            }
+            if(write_tty(dev->comfd, &c, 1)) WARN("write_tty()");
+        }
+        if(l){
+            printf("%s", dev->buf);
+            fflush(stdout);
+           // if(fout) copy_buf_to_file(buff, &oldcmd);
+        }
+    }
+    // never reached
+    return 0;
+}
+