Add Makefile targets for (cross)building Debian package

[sojka/sterm.git] / sterm.c

diff --git a/sterm.c b/sterm.c
index 6ecb117926ee89dd3e3b4a03ccfb8c315a42b76d..e5bf7df51423dfb12428ccd935ad842eb0e31011 100644 (file)
--- a/sterm.c
+++ b/sterm.c
@@ -133,6 +133,7 @@ void usage(const char* argv0)
        fprintf(stderr, "Usage: %s [options] <device>\n", argv0);
        fprintf(stderr,
                "Options:\n"
+               "  -b <duration> send break signal\n"
                "  -c        enter command mode\n"
                "  -d[PULSE] make pulse on DTR\n"
                "  -e        ignore '~.' escape sequence\n"
@@ -176,6 +177,7 @@ void handle_commands(int fd)
 
        while (!go) {
                char *p1 = NULL;
+               int num;
                if (fgets(command, sizeof(command), stdin) == NULL) {
                        if (!feof(stdin))
                            perror("Command read");
@@ -185,8 +187,12 @@ void handle_commands(int fd)
                        pulse(fd, dtr_rts_arg('d', p1), 0);
                else if (sscanf(command, "rts %ms", &p1) == 1)
                        pulse(fd, 0, dtr_rts_arg('r', p1));
+               else if (sscanf(command, "break %d", &num) == 1)
+                       CHECK(tcsendbreak(fd, num));
                else if (strcmp(command, "go\n") == 0)
                        break;
+               else if (strcmp(command, "exit\n") == 0)
+                       exit(0);
                else {
                        fprintf(stderr, "Unknown command: %s\n", command);
                        exit(1);
@@ -206,14 +212,16 @@ int main(int argc, char *argv[])
        bool stdin_tty;
        bool raw = true;
        bool cmd = false;
+       int break_dur = -1;
 
        if ((stdin_tty = isatty(0))) {
                CHECK(tcgetattr(0, &stdin_tio_backup));
                atexit(restore_stdin_term);
        }
 
-       while ((opt = getopt(argc, argv, "cnd::er::s:v")) != -1) {
+       while ((opt = getopt(argc, argv, "b:cnd::er::s:v")) != -1) {
                switch (opt) {
+               case 'b': break_dur = atoi(optarg); break;
                case 'c': cmd = true; break;
                case 'd': dtr = dtr_rts_arg(opt, optarg); break;
                case 'e': exit_on_escape = false; break;
@@ -314,6 +322,9 @@ int main(int argc, char *argv[])
                if (dtr || rts)
                        pulse(fd, dtr, rts);
 
+               if (break_dur != -1)
+                       CHECK(tcsendbreak(fd, break_dur));
+
                 /* Disable flow control */
                tio.c_cflag &= ~(CRTSCTS);
                tio.c_iflag &= ~(IXON|IXOFF);