1 #include <sys/cdefs.h> 2 #include "namespace.h" 3 #include <lib.h> 4 #include <minix/u64.h> 5 #include <sys/types.h> 6 #include <sys/stat.h> 7 #include <stdio.h> 8 #include <errno.h> 9 #include <fcntl.h> 10 #include <limits.h> 11 #include <stdlib.h> 12 #include <string.h> 13 #include <time.h> 14 #include <unistd.h> 15 #include <minix/config.h> 16 #include <minix/const.h> 17 #include <minix/type.h> 18 #include <minix/minlib.h> 19 #include <minix/partition.h> 20 #include <sys/ioctl.h> 21 #include <sys/ioc_disk.h> 22 23 #include <unistd.h> 24 25 /*================================================================ 26 * minix_sizeup - determine device size 27 *===============================================================*/ 28 int minix_sizeup(device, bytes) 29 char *device; 30 u64_t *bytes; 31 { 32 int fd; 33 struct part_geom entry; 34 struct stat st; 35 36 if ((fd = open(device, O_RDONLY)) == -1) { 37 if (errno != ENOENT) 38 perror("sizeup open"); 39 return -1; 40 } 41 if (ioctl(fd, DIOCGETP, &entry) == -1) { 42 perror("sizeup ioctl"); 43 if(fstat(fd, &st) < 0) { 44 perror("fstat"); 45 entry.size = ((u64_t)(0)); 46 } else { 47 entry.size = ((u64_t)(st.st_size)); 48 } 49 } 50 close(fd); 51 *bytes = entry.size; 52 return 0; 53 } 54