From: Martin Ling <redacted>
Date: Sun, 3 Nov 2013 21:35:46 +0000 (+0000)
Subject: Add sp_get_port_by_name() function.
X-Git-Tag: libserialport-0.1.0~149
X-Git-Url: https://sigrok.org/gitweb/?a=commitdiff_plain;h=d4babed247a917219709f5bb50241d54e1a037be;hp=5919c9134abff82adeed3941fde27fed65d01dcb;p=libserialport.git

Add sp_get_port_by_name() function.
---

diff --git a/serialport.c b/serialport.c
index 3c81f9e..9330376 100644
--- 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;
diff --git a/serialport.h b/serialport.h
index 8c42720..9a32109 100644
--- a/serialport.h
+++ b/serialport.h
@@ -79,6 +79,7 @@ enum {
 	SP_FLOW_SOFTWARE = 2
 };
 
+struct sp_port *sp_get_port_by_name(const char *portname);
 struct sp_port **sp_list_ports(void);
 void sp_free_port_list(struct sp_port **ports);
 int sp_open(struct sp_port *port, int flags);