* Added __srefill() skeleton, for BSD libc.

configure.ac

@@ -15,7 +15,7 @@ AC_PROG_CPP
 AC_PROG_LIBTOOL
 
 AC_CHECK_HEADERS(inttypes.h stdint.h getopt.h)
-AC_CHECK_FUNCS(open64 lseek64 mmap64 fopen64 fseeko _IO_getc getline getdelim __getdelim fgetln)
+AC_CHECK_FUNCS(open64 lseek64 mmap64 fopen64 fseeko _IO_getc getline getdelim __getdelim fgetln __srefill)
 AC_CHECK_TYPES(sighandler_t, [], [],
   [#define _GNU_SOURCE
    #include <signal.h>])

src/load-stream.c

@@ -70,8 +70,12 @@ static ssize_t (*__getdelim_orig) (char **lineptr, size_t *n, int delim,
 
 /* Additional BSDisms */
 #ifdef HAVE_FGETLN
-static char *  (*fgetln_orig) (FILE *stream, size_t *len);
+static char *  (*fgetln_orig)    (FILE *stream, size_t *len);
 #endif
+#ifdef HAVE___SREFILL
+int         *  (*__srefill_orig) (FILE *fp);
+#endif
+
 
 void _zz_load_stream(void)
 {
@@ -105,6 +109,9 @@ void _zz_load_stream(void)
 #ifdef HAVE_FGETLN
     LOADSYM(fgetln);
 #endif
+#ifdef HAVE___SREFILL
+    LOADSYM(__srefill);
+#endif
 }
 
 /* Our function wrappers */
@@ -493,3 +500,20 @@ char *fgetln(FILE *stream, size_t *len)
 }
 #endif
 
+#ifdef HAVE___SREFILL
+int __srefill(FILE *fp)
+{
+    int ret, fd;
+
+    if(!_zz_ready)
+        LOADSYM(__srefill);
+    fd = fileno(stream);
+    ret = __srefill_orig(stream);
+    if(!_zz_ready || !_zz_iswatched(fd))
+        return ret;
+
+    debug("__srefill([%i]) = %i", fd, ret);
+    return ret;
+}
+#endif
+