Use fgetln(3) instead of fgets(3) so we can easily recognize lines

that are too long and ignore them instead of corrupting later entries.

1 files changed, 12 insertions, 8 deletions

diff --git a/src/lib/libc/net/getprotoent.c b/src/lib/libc/net/getprotoent.c
index 381feb6faf..2bef526e7a 100644
--- a/src/lib/libc/net/getprotoent.c
+++ b/src/lib/libc/net/getprotoent.c
@@ -32,7 +32,7 @@
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char rcsid[] = "$OpenBSD: getprotoent.c,v 1.2 1996/08/19 08:28:52 tholo Exp $";
+static char rcsid[] = "$OpenBSD: getprotoent.c,v 1.3 1998/03/16 05:06:59 millert Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
@@ -74,20 +74,24 @@ endprotoent()
 struct protoent *
 getprotoent()
 {
-        char *p;
-        register char *cp, **q;
+        char *p, *cp, **q;
+        size_t len;
 
         if (protof == NULL && (protof = fopen(_PATH_PROTOCOLS, "r" )) == NULL)
                 return (NULL);
 again:
-        if ((p = fgets(line, BUFSIZ, protof)) == NULL)
+        if ((p = fgetln(protof, &len)) == NULL)
                 return (NULL);
-        if (*p == '#')
+        if (p[len-1] == '\n')
+                len--;
+        if (len >= sizeof(line) || len == 0)
                 goto again;
-        cp = strpbrk(p, "#\n");
-        if (cp == NULL)
+        p = memcpy(line, p, len);
+        line[len] = '\0';
+        if (*p == '#')
                 goto again;
-        *cp = '\0';
+        if ((cp = strchr(p, '#')) != NULL)
+                *cp = '\0';
         proto.p_name = p;
         cp = strpbrk(p, " \t");
         if (cp == NULL)