Add missing system include <string.h>, if available

Purpose is to squish recently introduced warnings:

resource/c_common/oic_platform/src/oic_platform.c: In function 'HashStrToUuid':
resource/c_common/oic_platform/src/oic_platform.c:92:5: warning: implicit declaration of function 'memcpy' [-Wimplicit-function-declaration]
     memcpy(platformUuid, hash, OIC_UUID_LENGTH);
     ^~~~~~
resource/c_common/oic_platform/src/oic_platform.c:92:5: warning: incompatible implicit declaration of built-in function 'memcpy'
resource/c_common/oic_platform/src/oic_platform.c:92:5: note: include '<string.h>' or provide a declaration of 'memcpy'
In file included from resource/c_common/oic_platform/src/oic_platform.c:57:0:
resource/c_common/oic_platform/src/oic_platform.c: In function 'OICGetPlatformUuid':
resource/c_common/oic_platform/src/oic_platform.c:119:67: warning: implicit declaration of function 'strerror' [-Wimplicit-function-declaration]
         OIC_LOG_V(WARNING, TAG, "Failed gethostname() errno: %s", strerror(errno));
                                                                   ^
resource/c_common/oic_platform/src/oic_platform.c:154:42: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     if (!HashStrToUuid(fqdnComputerName, strlen(fqdnComputerName), platformUuid))
                                          ^~~~~~
resource/c_common/oic_platform/src/oic_platform.c:154:42: warning: incompatible implicit declaration of built-in function 'strlen'
resource/c_common/oic_platform/src/oic_platform.c:154:42: note: include '<string.h>' or provide a declaration of 'strlen'

Change-Id: Ic3755bd59fd80b68011352117c09c88d27b5e4fa
Signed-off-by: Mats Wichmann <mats@linux.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/18351
Tested-by: jenkins-iotivity <jenkins@iotivity.org>
Reviewed-by: George Nash <george.nash@intel.com>
Reviewed-by: Uze Choi <uzchoi@samsung.com>
Reviewed-by: Dave Thaler <dthaler@microsoft.com>

diff --git a/resource/c_common/oic_platform/src/oic_platform.c b/resource/c_common/oic_platform/src/oic_platform.c
index 3573697..dadc843 100644 (file)
--- a/resource/c_common/oic_platform/src/oic_platform.c
+++ b/resource/c_common/oic_platform/src/oic_platform.c
@@ -22,6 +22,10 @@
 #include <unistd.h>
 #endif
 
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
 #endif