1976 write_png(struct display *dp, const char *destname)  in write_png()  argument
1979    display_start_write(dp, destname);  in write_png()
2073                destname == NULL ? "stdout" : destname, strerror(errno));  in write_png()
2167 cp_one_file(struct display *dp, const char *filename, const char *destname)  in cp_one_file()  argument
2199    if (destname != NULL) /* else stdout */  in cp_one_file()
2201       if (isdir(dp, destname))  in cp_one_file()
2203          makename(dp, destname, filename);  in cp_one_file()
2204          destname = dp->namebuf;  in cp_one_file()
2207       else if (access(destname, W_OK) != 0 && errno != ENOENT)  in cp_one_file()
2208          display_log(dp, USER_ERROR, "%s: invalid output name (%s)", destname,  in cp_one_file()
2217    write_png(dp, destname);  in cp_one_file()
2233       if (destname != NULL)  in cp_one_file()
2235          strcpy(tmpbuf, destname);  in cp_one_file()
2256             if (destname != NULL && rename(tmpname, destname) != 0)  in cp_one_file()
2258                      destname, strerror(errno));  in cp_one_file()