safe_strdup 441 sapi/aolserver/aolserver.c #define safe_strdup(x) ((x)?strdup((x)):NULL) safe_strdup 406 sapi/apache2filter/sapi_apache2.c #undef safe_strdup safe_strdup 407 sapi/apache2filter/sapi_apache2.c #define safe_strdup(x) ((x)?strdup((x)):NULL)