3 files changed, 69 insertions, 3 deletions

diff --git a/src/util/Makefile.am b/src/util/Makefile.am
index bb257f5..bec625a 100644
--- a/src/util/Makefile.am
+++ b/src/util/Makefile.am
@@ -3,7 +3,7 @@ AM_CFLAGS = -std=gnu99
 
 bin_PROGRAMS = libgsmd-tool
 
-libgsmd_tool_SOURCES = libgsmd-tool.c
+libgsmd_tool_SOURCES = libgsmd-tool.c shell.c
 libgsmd_tool_LDADD = ../libgsmd/libgsmd.la
 libgsmd_tool_LDFLAGS = -dynamic
 
diff --git a/src/util/libgsmd-tool.c b/src/util/libgsmd-tool.c
index a3da490..e8590c1 100644
--- a/src/util/libgsmd-tool.c
+++ b/src/util/libgsmd-tool.c
@@ -8,13 +8,42 @@
 
 #include <libgsmd/libgsmd.h>
 
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
 static struct lgsm_handle *lgsmh;
 static int verbose = 0;
 
+enum mode_enum {
+	MODE_NONE,
+	MODE_SHELL,
+	MODE_EVENTLOG,
+};
+
+static char *modes[] = {
+	[MODE_NONE]	= "",
+	[MODE_SHELL]	= "shell",
+	[MODE_EVENTLOG]	= "eventlog",
+};
+
+static int parse_mode(char *modestr)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(modes); i++) {
+		if (!strcmp(modes[i], modestr))
+			return i;
+	}
+
+	return -1;
+}
+
 static struct option opts[] = {
 	{ "help", 0, 0, 'h' },
 	{ "version", 0, 0, 'V' },
 	{ "verbose", 0, 0, 'v' },
+	{ "mode", 1, 0, 'm' },
 	{ 0, 0, 0, 0 }
 };
 
@@ -28,14 +57,14 @@ static void help(void)
 
 int main(int argc, char **argv)
 {
-	int rc, i;
+	int rc, i, mode;
 
 	printf("libgsm-tool - (C) 2006 by Harald Welte\n"
 		"This program is Free Software and has ABSOLUTELY NO WARRANTY\n\n");
 
 	while (1) {
 		int c, option_index = 0;
-		c = getopt_long(argc, argv, "hVv", opts, &option_index);
+		c = getopt_long(argc, argv, "vVhm:", opts, &option_index);
 		if (c == -1)
 			break;
 
@@ -50,6 +79,13 @@ int main(int argc, char **argv)
 			help();
 			exit(0);
 			break;
+		case 'm':
+			mode = parse_mode(optarg);
+			if (mode < 0) {
+				fprintf(stderr, "unknown/unsupported mode `%s'\n", optarg);
+				exit(2);
+			}
+			break;
 		}
 	}
 
@@ -59,6 +95,11 @@ int main(int argc, char **argv)
 		exit(1);
 	}
 
+	switch (mode) {
+	case MODE_SHELL:
+		shell_main(lgsmh);
+		break;
+	}
 
 	exit(0);
 }
diff --git a/src/util/shell.c b/src/util/shell.c
new file mode 100644
index 0000000..eb1991d
--- /dev/null
+++ b/src/util/shell.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <string.h>
+
+#include <libgsmd/libgsmd.h>
+
+#define STDIN_BUF_SIZE	1024
+
+int shell_main(struct lgsmd_handle *lgsmh)
+{
+	int rc;
+	char buf[STDIN_BUF_SIZE+1];
+
+	while (1) {
+		rc = fscanf(stdin, "%s", buf);
+		if (rc == EOF) {
+			printf("EOF\n");
+			return -1;
+		}
+		if (rc <= 0) {
+			printf("NULL\n");
+			continue;
+		}
+		printf("STR=`%s'\n", buf);
+	}
+}