#define DPRINTF(X,args...)
#endif /* DEBUG */
+/* Make sure the incoming char * buffer is aligned enough to handle our random
+ * structures. This define is the same as we use for malloc alignment (which
+ * has same requirements). The offset is the number of bytes we need to adjust
+ * in order to attain desired alignment.
+ */
+#define ALIGN_ATTR __alignof__(double __attribute_aligned__ (sizeof(size_t)))
+#define ALIGN_BUFFER_OFFSET(buf) ((ALIGN_ATTR - ((size_t)buf % ALIGN_ATTR)) % ALIGN_ATTR)
+
/* Global stuff (stuff needing to be locked to be thread safe)... */
extern int __nameservers attribute_hidden;
char *cp, **alias;
int aliases, i, ret = HOST_NOT_FOUND;
+ /* make sure user char * is aligned */
+ i = ALIGN_BUFFER_OFFSET(buf);
+ if (unlikely(i)) {
+ if (buflen < i)
+ return ERANGE;
+ buf += i;
+ buflen -= i;
+ }
+
if (buflen < sizeof(char *)*(ALIAS_DIM))
return ERANGE;
alias = (char **)buf;
DPRINTF("Nothing found in /etc/hosts\n");
+ /* make sure user char * is aligned */
+ i = ALIGN_BUFFER_OFFSET(buf);
+ if (unlikely(i)) {
+ if (buflen < i)
+ return ERANGE;
+ buf += i;
+ buflen -= i;
+ }
+
*h_errnop = NETDB_INTERNAL;
if (buflen < sizeof(*in))
return ERANGE;