Initial commit

1 files changed, 156 insertions, 0 deletions

diff --git a/buf.c b/buf.c
new file mode 100644
index 0000000..ac7e83a
--- /dev/null
+++ b/buf.c
@@ -0,0 +1,156 @@
+#include "buf.h"
+
+
+bbuf* bbuf_new(int size)
+{
+	bbuf *ret = NULL;
+	ret = malloc(sizeof(bbuf));
+	if (!ret)
+	{
+		return NULL;
+	}
+	ret->buf = malloc(size);
+	if (!ret->buf)
+	{
+		free(ret);
+		return NULL;
+	}
+	ret->buf_size = size;
+	ret->size = 0;
+	return ret;
+}
+
+//set buffer value
+int bbuf_set(bbuf *a, char *val, int size)
+{
+	if (!a)
+		return -1;
+
+	if (!a->buf)
+		return -1;
+
+	if (size<0)
+		return -1;
+
+	if (size > a->buf_size)
+	{
+		a->size = a->buf_size;
+	} else
+	{
+		a->size = size;
+	}
+	memcpy(a->buf, val, a->size);
+
+	return a->size;
+}
+
+
+//get copy of buffer
+bbuf *bbuf_copy(bbuf *buf)
+{
+	bbuf *ret = NULL;
+
+	if (!buf)
+	{
+		return NULL;
+	}
+
+	ret = malloc(sizeof(bbuf));
+	memcpy(ret, buf, sizeof(bbuf));
+	ret->buf = malloc(buf->buf_size);
+	if (!ret->buf)
+	{
+		free(ret);
+		return NULL;
+	}
+	memcpy(ret->buf, buf->buf, buf->buf_size);
+	ret->size = buf->size;
+	ret->buf_size = buf->buf_size;
+
+	return ret;
+}
+
+
+//get buffer from buffer, mapped pointer, plz dont modify
+int bbuf_get(bbuf *buf, char **val, int *size)
+{
+	if (!buf)
+	{
+		return -1;
+	}
+
+	if (!val)
+	{
+		return -1;
+	}
+
+	*size = buf->size;
+	*val = buf->buf;
+
+	return 0;
+}
+
+
+//resize buffer
+int bbuf_realloc(bbuf *buf, int size)
+{
+	int ret = -1;
+	char *ptr=NULL;
+	if (!buf)
+		return -1;
+	if (size < 0)
+		return -1;
+	if (buf->buf_size == size)
+		return size;
+
+	ret = buf->buf_size;
+	ptr = realloc(buf->buf, size);
+	if (ptr != NULL)
+	{
+		buf->buf = ptr;
+		ret = size;
+	}
+
+	return ret;
+}
+
+
+//increase buffer for size
+int bbuf_inc(bbuf *a, char *b, int size)
+{
+	printf("Not implemented\n");
+	return -1;
+}
+
+
+//decrease buffer for size
+int bbuf_dec(bbuf *a, char *b, int size)
+{
+	printf("Not implemented\n");
+	return -1;
+}
+
+
+//free buffer
+void bbuf_free(bbuf *buf)
+{
+	if (buf == NULL)
+	{
+		return;
+	}
+	if (buf->buf != NULL)
+	{
+		memset(buf->buf, 0, buf->buf_size);
+		free(buf->buf);
+		buf->buf = NULL;
+		memset(buf, 0, sizeof(bbuf));
+		free(buf);
+	}
+}
+
+int bbuf_concat(bbuf *a, bbuf *b)
+{
+	printf("Not implemented\n");
+	return -1;
+}
+