Add sp_get_port_by_name() function.

[libserialport.git] / serialport.c

diff --git a/serialport.c b/serialport.c
index 3c81f9ef097af937f250f2a5ef7a23789493327f..93303767c05dfb512926c538cbb6748dcade4db6 100644 (file)
--- a/serialport.c
+++ b/serialport.c
@@ -45,11 +45,14 @@
 
 #include "serialport.h"
 
-static struct sp_port *sp_port_new(const char *portname)
+struct sp_port *sp_get_port_by_name(const char *portname)
 {
        struct sp_port *port;
        int len;
 
+       if (!portname)
+               return NULL;
+
        if (!(port = malloc(sizeof(struct sp_port))))
                return NULL;
 
@@ -74,7 +77,7 @@ static struct sp_port **sp_list_append(struct sp_port **list, const char *portna
        if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2))))
                goto fail;
        list = tmp;
-       if (!(list[count] = sp_port_new(portname)))
+       if (!(list[count] = sp_get_port_by_name(portname)))
                goto fail;
        list[count + 1] = NULL;
        return list;