handle negative lengths to read until eof

diff --git a/dspam-spamd.c b/dspam-spamd.c
index 71161cf9064a50a72bfe4379a1639c3d3e66dbd9..4f3cb6f39774cd3cca3d80fd6ff15da30903784b 100644 (file)
--- a/dspam-spamd.c
+++ b/dspam-spamd.c
@@ -83,9 +83,11 @@ int main() {
        /* now read the message */
        if (length > MAXSIZE)
                ERROR(EX_IOERR, "message too big");
+       if (length < 0)
+               length = MAXSIZE;
 
        message = malloc(length+1);
-       fread(message, 1, length, stdin);
+       length = fread(message, 1, length, stdin);
        fclose(stdin);
 
        if (pipe(dspam_in) || pipe(dspam_out) || pipe(dspam_err))