aklog: Fix improper use of readlink
[openafs.git] / src / aklog / aklog.c
index 6e096b0..22df70d 100644 (file)
@@ -1192,12 +1192,16 @@ next_path(char *origpath)
            ? elast_comp - last_comp : strlen(last_comp);
        strncat(pathtocheck, last_comp, len);
        memset(linkbuf, 0, sizeof(linkbuf));
-       if ((link = (readlink(pathtocheck, linkbuf,
-                                   sizeof(linkbuf)) > 0))) {
+       link = readlink(pathtocheck, linkbuf, sizeof(linkbuf)-1);
+
+       if (link > 0) {
+           linkbuf[link] = '\0'; /* NUL terminate string */
+
            if (++symlinkcount > MAXSYMLINKS) {
                fprintf(stderr, "%s: %s\n", progname, strerror(ELOOP));
                exit(AKLOG_BADPATH);
            }
+
            memset(tmpbuf, 0, sizeof(tmpbuf));
            if (elast_comp)
                strcpy(tmpbuf, elast_comp);