diff --git a/pmc.8 b/pmc.8 index dfe71bb..1128bf7 100644 --- a/pmc.8 +++ b/pmc.8 @@ -22,14 +22,14 @@ pmc \- PTP management client .BI \-t " transport-specific-field" ] [ .B \-v -] +] [ command ] ... .SH DESCRIPTION .B pmc is a program which implements a PTP management client according to IEEE -standard 1588. The program reads from the standard input actions specified by -name and management ID, sends them over the selected transport and prints any -received replies. There are three actions supported: +standard 1588. The program reads from the standard input or from the command +line actions specified by name and management ID, sends them over the selected +transport and prints any received replies. There are three actions supported: .B GET retrieves the specified information, .B SET diff --git a/pmc.c b/pmc.c index 2736d85..5e000bb 100644 --- a/pmc.c +++ b/pmc.c @@ -381,7 +381,7 @@ static int do_command(char *str) static void usage(char *progname) { fprintf(stderr, - "\nusage: %s [options]\n\n" + "\nusage: %s [options] [commands]\n\n" " Network Transport\n\n" " -2 IEEE 802.3\n" " -4 UDP IPV4 (default)\n" @@ -402,8 +402,8 @@ static void usage(char *progname) int main(int argc, char *argv[]) { char *iface_name = NULL, *progname; - int c, cnt, length, tmo = -1; - char line[1024]; + int c, cnt, length, tmo = -1, batch_mode = 0; + char line[1024], *command = NULL; enum transport_type transport_type = TRANS_UDP_IPV4; UInteger8 boundary_hops = 1, domain_number = 0, transport_specific = 0; struct ptp_message *msg; @@ -458,6 +458,9 @@ int main(int argc, char *argv[]) if (!iface_name) { iface_name = transport_type == TRANS_UDS ? "/var/run/pmc" : "eth0"; } + if (optind < argc) { + batch_mode = 1; + } print_set_progname(progname); print_set_syslog(1); @@ -469,12 +472,28 @@ int main(int argc, char *argv[]) return -1; } - pollfd[0].fd = STDIN_FILENO; - pollfd[0].events = POLLIN|POLLPRI; + pollfd[0].fd = batch_mode ? -1 : STDIN_FILENO; pollfd[1].fd = pmc_get_transport_fd(pmc); - pollfd[1].events = POLLIN|POLLPRI; while (1) { + if (batch_mode && !command) { + if (optind < argc) { + command = argv[optind++]; + } else { + /* No more commands, wait a bit for + any outstanding replies and exit. */ + tmo = 100; + } + } + + pollfd[0].events = 0; + pollfd[1].events = POLLIN | POLLPRI; + + if (!batch_mode && !command) + pollfd[0].events |= POLLIN | POLLPRI; + if (command) + pollfd[1].events |= POLLOUT; + cnt = poll(pollfd, N_FD, tmo); if (cnt < 0) { if (EINTR == errno) { @@ -505,9 +524,13 @@ int main(int argc, char *argv[]) continue; } line[length - 1] = 0; - if (do_command(line)) { - fprintf(stderr, "bad command: %s\n", line); + command = line; + } + if (pollfd[1].revents & POLLOUT) { + if (do_command(command)) { + fprintf(stderr, "bad command: %s\n", command); } + command = NULL; } if (pollfd[1].revents & (POLLIN|POLLPRI)) { msg = pmc_recv(pmc);