1 files changed, 86 insertions, 0 deletions
diff --git a/gsmdecode/src/common.c b/gsmdecode/src/common.c
new file mode 100644
index 0000000..decea53
--- /dev/null
+++ b/gsmdecode/src/common.c
@@ -0,0 +1,86 @@
+/*
+ */
+
+#include "common.h"
+#include <stdio.h>
+#include <string.h>
+
+void
+hexdump(const unsigned char *data, size_t len)
+{
+        size_t n = 0;
+	int line = 0;
+
+	if (!len)
+		return;
+
+	printf("%03x: ", line++);
+	while (1)
+	{
+		printf("%2.2x ", data[n++]);
+		if (n >= len)
+			break;
+		if ((n % 8 == 0) && (n % 16 != 0))
+			printf(" - "); 
+		if (n % 16 == 0)
+			printf("\n%03x: ", line++);
+	}
+	printf("\n");
+}
+
+#ifndef HAVE_STRLCPY
+/*           
+ * bsd'sh strlcpy().
+ * The strlcpy() function copies up to size-1 characters from the
+ * NUL-terminated string src to dst, NUL-terminating the result.
+ * Return: total length of the string tried to create.
+ */
+size_t
+strlcpy(char *dst, const char *src, size_t size)
+{
+        size_t len = strlen(src);
+        size_t ret = len;
+
+        if (size <= 0)
+		return 0;
+	if (len >= size)
+		len = size - 1;
+	memcpy(dst, src, len);
+	dst[len] = 0;
+
+	return ret;
+}
+#endif
+
+/*
+ * Debuggging...
+ * Convert an interger to a bit string and output it.
+ * Most significatn bit first.
+ */
+char *
+int2bit(unsigned int val)
+{
+	static char buf[33 + 3];
+	char *ptr = buf;
+	unsigned int i = 0x1 << 31;
+	int round = 0;
+
+	while (i > 0)
+	{
+
+		if (val & i)
+			*ptr++ = '1';
+		else
+			*ptr++ = '0';
+
+		i = i >> 1;
+
+		if ((++round % 8 == 0) && (i > 0))
+			*ptr++ = '.';
+	}
+
+	*ptr = '\0';
+
+	return buf;
+}
+