83     static uch ppmline[256];  in readpng_init()  local
89     fgets(ppmline, 256, infile);  in readpng_init()
90     if (ppmline[0] != 'P' || ppmline[1] != '6') {  in readpng_init()
95     if (ppmline[1] == '6') {  in readpng_init()
98     } else if (ppmline[1] == '8') {  in readpng_init()
107         fgets(ppmline, 256, infile);  in readpng_init()
108     } while (ppmline[0] == '#');  in readpng_init()
109     sscanf(ppmline, "%lu %lu", &width, &height);  in readpng_init()
112         fgets(ppmline, 256, infile);  in readpng_init()
113     } while (ppmline[0] == '#');  in readpng_init()
114     sscanf(ppmline, "%d", &maxval);  in readpng_init()