41 int main(int argc,char **argv)  in main()  argument
49 	if (stat (argv[3], &s) < 0) die (argv[3]);  in main()
50 	map = fopen (argv[2], "r");  in main()
51 	if (!map) die(argv[2]);  in main()
59 	if ((image = open(argv[1],O_RDWR)) < 0) die(argv[1]);  in main()
60 	if (read(image,buffer,512) != 512) die(argv[1]);  in main()
66 		if (read(image,buffer,512) != 512) die(argv[1]);  in main()
80 		if (read(image,buffer,1024) != 1024) die(argv[1]);  in main()
96 	if (write(image,buffer+2,14) != 14) die (argv[1]);  in main()
101 	if (write(image,buffer,12) != 12) die (argv[1]);  in main()
103 	if ((tail = open(argv[3],O_RDONLY)) < 0) die(argv[3]);  in main()
105 		if (write(image,buffer,i) != i) die (argv[1]);  in main()