diff options
Diffstat (limited to 'nss')
| -rw-r--r-- | nss/getent.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/nss/getent.c b/nss/getent.c index f25de8f1fc..07a7d09795 100644 --- a/nss/getent.c +++ b/nss/getent.c @@ -40,6 +40,7 @@ #include <netinet/in.h> #include <sys/socket.h> #include <scratch_buffer.h> +#include <inttypes.h> /* Get libc version number. */ #include <version.h> @@ -393,15 +394,34 @@ ahosts_keys_int (int af, int xflags, int number, char *key[]) sockstr = sockbuf; } + /* Three digits per byte, plus '%' and null terminator. */ + char scope[3 * sizeof (uint32_t) + 2]; + struct sockaddr_in6 *addr6 + = (struct sockaddr_in6 *) runp->ai_addr; + if (runp->ai_family != AF_INET6 || addr6->sin6_scope_id == 0) + /* No scope ID present. */ + scope[0] = '\0'; + else + snprintf (scope, sizeof (scope), "%%%" PRIu32, + addr6->sin6_scope_id); + char buf[INET6_ADDRSTRLEN]; - printf ("%-15s %-6s %s\n", - inet_ntop (runp->ai_family, - runp->ai_family == AF_INET - ? (void *) &((struct sockaddr_in *) runp->ai_addr)->sin_addr - : (void *) &((struct sockaddr_in6 *) runp->ai_addr)->sin6_addr, - buf, sizeof (buf)), - sockstr, - runp->ai_canonname ?: ""); + if (inet_ntop (runp->ai_family, + runp->ai_family == AF_INET + ? (void *) &((struct sockaddr_in *) runp->ai_addr)->sin_addr + : &addr6->sin6_addr, + buf, sizeof (buf)) == NULL) + { + strcpy (buf, "<invalid>"); + scope[0] = '\0'; + } + + int pad = 15 - strlen (buf) - strlen (scope); + if (pad < 0) + pad = 0; + + printf ("%s%-*s %-6s %s\n", + buf, pad, scope, sockstr, runp->ai_canonname ?: ""); runp = runp->ai_next; } |