1 files changed, 153 insertions, 0 deletions
diff --git a/tests/test_libgps.c b/tests/test_libgps.c
new file mode 100644
index 00000000..050cd443
--- /dev/null
+++ b/tests/test_libgps.c
@@ -0,0 +1,153 @@
+/*
+ * A simple command-line exerciser for the library.
+ * Not really useful for anything but debugging.
+ * SPDX-License-Identifier: BSD-2-clause
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <ctype.h>
+
+#include "../gps.h"
+#include "../libgps.h"
+#include "../gpsdclient.h"
+
+#include <unistd.h>
+#include <getopt.h>
+#include <signal.h>
+
+static void onsig(int sig)
+{
+    (void)fprintf(stderr, "libgps: died with signal %d\n", sig);
+    exit(EXIT_FAILURE);
+}
+
+#ifdef SOCKET_EXPORT_ENABLE
+/* must start zeroed, otherwise the unit test will try to chase garbage pointer fields. */
+static struct gps_data_t gpsdata;
+#endif
+
+int main(int argc, char *argv[])
+{
+    struct gps_data_t collect;
+    struct fixsource_t source;
+    char buf[BUFSIZ];
+    int option;
+    bool batchmode = false;
+    bool forwardmode = false;
+    char *fmsg = NULL;
+#ifdef CLIENTDEBUG_ENABLE
+    int debug = 0;
+#endif
+
+    (void)signal(SIGSEGV, onsig);
+#ifdef SIGBUS
+    (void)signal(SIGBUS, onsig);
+#endif
+
+    while ((option = getopt(argc, argv, "bf:hsD:?")) != -1) {
+	switch (option) {
+	case 'b':
+	    batchmode = true;
+	    break;
+	case 'f':
+	    forwardmode = true;
+	    fmsg = optarg;
+	    break;
+	case 's':
+	    (void)
+		printf("Sizes: fix=%zd gpsdata=%zd rtcm2=%zd rtcm3=%zd "
+                       "ais=%zd compass=%zd raw=%zd devices=%zd policy=%zd "
+                       "version=%zd, noise=%zd\n",
+		 sizeof(struct gps_fix_t),
+		 sizeof(struct gps_data_t), sizeof(struct rtcm2_t),
+		 sizeof(struct rtcm3_t), sizeof(struct ais_t),
+		 sizeof(struct attitude_t), sizeof(struct rawdata_t),
+		 sizeof(collect.devices), sizeof(struct gps_policy_t),
+		 sizeof(struct version_t), sizeof(struct gst_t));
+	    exit(EXIT_SUCCESS);
+#ifdef CLIENTDEBUG_ENABLE
+	case 'D':
+	    debug = atoi(optarg);
+	    break;
+#endif
+	case '?':
+	case 'h':
+	default:
+	    (void)fputs("usage: test_libgps [-b] [-f fwdmsg] [-D lvl] [-s] [server[:port:[device]]]\n", stderr);
+	    exit(EXIT_FAILURE);
+	}
+    }
+
+    /* Grok the server, port, and device. */
+    if (optind < argc) {
+	gpsd_source_spec(argv[optind], &source);
+    } else
+	gpsd_source_spec(NULL, &source);
+
+#ifdef CLIENTDEBUG_ENABLE
+    gps_enable_debug(debug, stdout);
+#endif
+    if (batchmode) {
+#ifdef SOCKET_EXPORT_ENABLE
+	while (fgets(buf, sizeof(buf), stdin) != NULL) {
+	    if (buf[0] == '{' || isalpha( (int) buf[0])) {
+		gps_unpack(buf, &gpsdata);
+#ifdef LIBGPS_DEBUG
+		libgps_dump_state(&gpsdata);
+#endif
+	    }
+	}
+#endif
+    } else if (gps_open(source.server, source.port, &collect) != 0) {
+	(void)fprintf(stderr,
+		      "test_libgps: no gpsd running or network error: %d, %s\n",
+		      errno, gps_errstr(errno));
+	exit(EXIT_FAILURE);
+    } else if (forwardmode) {
+	if (gps_send(&collect, fmsg) == -1) {
+	  (void)fprintf(stderr,
+			"test_libgps: gps send error: %d, %s\n",
+			errno, gps_errstr(errno));
+	}
+	if (gps_read(&collect, NULL, 0) == -1) {
+	  (void)fprintf(stderr,
+			"test_libgps: gps read error: %d, %s\n",
+			errno, gps_errstr(errno));
+	}
+#ifdef SOCKET_EXPORT_ENABLE
+#ifdef LIBGPS_DEBUG
+	libgps_dump_state(&collect);
+#endif
+#endif
+	(void)gps_close(&collect);
+    } else {
+	int tty = isatty(0);
+
+	if (tty)
+	    (void)fputs("This is the gpsd exerciser.\n", stdout);
+	for (;;) {
+	    if (tty)
+		(void)fputs("> ", stdout);
+	    if (fgets(buf, sizeof(buf), stdin) == NULL) {
+		if (tty)
+		    putchar('\n');
+		break;
+	    }
+	    collect.set = 0;
+	    (void)gps_send(&collect, buf);
+	    (void)gps_read(&collect, NULL, 0);
+#ifdef SOCKET_EXPORT_ENABLE
+#ifdef LIBGPS_DEBUG
+	    libgps_dump_state(&collect);
+#endif
+#endif
+	}
+	(void)gps_close(&collect);
+    }
+    return 0;
+}
+