Implemented major feature: call hold and transfer

git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@212 74dad513-b988-da41-8d7b-12977e46ad98

1 files changed, 79 insertions, 0 deletions

diff --git a/pjsip/src/pjsip-simple/errno.c b/pjsip/src/pjsip-simple/errno.c
index 374178e2..e26b5a7b 100644
--- a/pjsip/src/pjsip-simple/errno.c
+++ b/pjsip/src/pjsip-simple/errno.c
@@ -17,4 +17,83 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
  */
 #include <pjsip-simple/errno.h>
+#include <pj/string.h>
+
+/* PJSIP-SIMPLE's own error codes/messages 
+ * MUST KEEP THIS ARRAY SORTED!!
+ * Message must be limited to 64 chars!
+ */
+static const struct 
+{
+    int code;
+    const char *msg;
+} err_str[] = 
+{
+    { PJSIP_SIMPLE_ENOPKG,	    "No SIP event package with the specified name" },
+    { PJSIP_SIMPLE_EPKGEXISTS,	    "SIP event package already exist" },
+
+    { PJSIP_SIMPLE_ENOTSUBSCRIBE,   "Expecting SUBSCRIBE request" },
+    { PJSIP_SIMPLE_ENOPRESENCE,	    "No presence associated with the subscription" },
+    { PJSIP_SIMPLE_ENOPRESENCEINFO, "No presence info in the server subscription" },
+    { PJSIP_SIMPLE_EBADCONTENT,	    "Bad Content-Type for presence" },
+    { PJSIP_SIMPLE_EBADPIDF,	    "Bad PIDF content for presence" },
+    { PJSIP_SIMPLE_EBADXPIDF,	    "Bad XPIDF content for presence" },
+};
+
+
+
+/*
+ * pjsipsimple_strerror()
+ */
+PJ_DEF(pj_str_t) pjsipsimple_strerror( pj_status_t statcode, 
+				       char *buf, pj_size_t bufsize )
+{
+    pj_str_t errstr;
+
+    if (statcode >= PJSIP_SIMPLE_ERRNO_START && 
+	statcode < PJSIP_SIMPLE_ERRNO_START + PJ_ERRNO_SPACE_SIZE)
+    {
+	/* Find the error in the table.
+	 * Use binary search!
+	 */
+	int first = 0;
+	int n = PJ_ARRAY_SIZE(err_str);
+
+	while (n > 0) {
+	    int half = n/2;
+	    int mid = first + half;
+
+	    if (err_str[mid].code < statcode) {
+		first = mid+1;
+		n -= (half+1);
+	    } else if (err_str[mid].code > statcode) {
+		n = half;
+	    } else {
+		first = mid;
+		break;
+	    }
+	}
+
+
+	if (PJ_ARRAY_SIZE(err_str) && err_str[first].code == statcode) {
+	    pj_str_t msg;
+	    
+	    msg.ptr = (char*)err_str[first].msg;
+	    msg.slen = pj_ansi_strlen(err_str[first].msg);
+
+	    errstr.ptr = buf;
+	    pj_strncpy_with_null(&errstr, &msg, bufsize);
+	    return errstr;
+
+	} 
+    }
+
+    /* Error not found. */
+    errstr.ptr = buf;
+    errstr.slen = pj_snprintf(buf, bufsize, 
+			      "Unknown error %d",
+			      statcode);
+
+    return errstr;
+}