[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/nss/bug-erange.c b/ap/libc/glibc/glibc-2.22/nss/bug-erange.c
new file mode 100644
index 0000000..b709418
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/nss/bug-erange.c
@@ -0,0 +1,52 @@
+/* Test case for gethostbyname_r bug when buffer expansion required. */
+
+#include <netdb.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int
+main (void)
+{
+ const char *host = "www.gnu.org";
+
+ /* This code approximates the example code in the library manual. */
+
+ struct hostent hostbuf, *hp;
+ size_t hstbuflen;
+ char *tmphstbuf;
+ int res;
+ int herr;
+
+ hstbuflen = 16; /* Make it way small to ensure ERANGE. */
+ /* Allocate buffer, remember to free it to avoid memory leakage. */
+ tmphstbuf = malloc (hstbuflen);
+
+ while ((res = gethostbyname_r (host, &hostbuf, tmphstbuf, hstbuflen,
+ &hp, &herr)) == ERANGE)
+ {
+ /* Enlarge the buffer. */
+ hstbuflen *= 2;
+ tmphstbuf = realloc (tmphstbuf, hstbuflen);
+ }
+
+ if (res != 0 || hp == NULL)
+ {
+ printf ("gethostbyname_r failed: %s (errno: %m)\n", strerror (res));
+
+ if (access ("/etc/resolv.conf", R_OK))
+ {
+ puts ("DNS probably not set up");
+ return 0;
+ }
+
+ return 1;
+ }
+
+ printf ("Got: %s %s\n", hp->h_name,
+ inet_ntoa (*(struct in_addr *) hp->h_addr));
+ return 0;
+}