extern int df_main(int argc, char **argv) { long blocks_used; long blocks_percent_used; #ifdef CONFIG_FEATURE_HUMAN_READABLE unsigned long df_disp_hr = KILOBYTE; #endif int status = EXIT_SUCCESS; unsigned long opt; FILE *mount_table; struct mntent *mount_entry; struct statfs s; static const char hdr_1k[] = "1k-blocks"; /* default display is kilobytes */ const char *disp_units_hdr = hdr_1k; char df_entry[200] = {0}; // Added by Nick Wang, 01/05/2005 int entry_len = 0; // Added by Nick Wang, 01/05/2005 printf("busybox df_main: start\n"); #ifdef CONFIG_FEATURE_HUMAN_READABLE bb_opt_complementaly = "h-km:k-hm:m-hk"; opt = bb_getopt_ulflags(argc, argv, "hmk"); if(opt & 1) { df_disp_hr = 0; disp_units_hdr = " Size"; } if(opt & 2) { df_disp_hr = MEGABYTE; disp_units_hdr = "1M-blocks"; } #else opt = bb_getopt_ulflags(argc, argv, "k"); #endif bb_printf("Filesystem%11s%-15sUsed Available Use%% Mounted on\n", "", disp_units_hdr); mount_table = NULL; argv += optind; if (optind >= argc) { if (!(mount_table = setmntent(bb_path_mtab_file, "r"))) { bb_perror_msg_and_die(bb_path_mtab_file); } } do { const char *device; const char *mount_point; if (mount_table) { if (!(mount_entry = getmntent(mount_table))) { endmntent(mount_table); break; } } else { if (!(mount_point = *argv++)) { break; } if (!(mount_entry = find_mount_point(mount_point, bb_path_mtab_file))) { bb_error_msg("%s: can't find mount point.", mount_point); SET_ERROR: status = EXIT_FAILURE; continue; } } device = mount_entry->mnt_fsname; mount_point = mount_entry->mnt_dir; if (statfs(mount_point, &s) != 0) { bb_perror_msg("%s", mount_point); goto SET_ERROR; } if ((s.f_blocks > 0) || !mount_table){ blocks_used = s.f_blocks - s.f_bfree; blocks_percent_used = 0; if (blocks_used + s.f_bavail) { blocks_percent_used = (((long long) blocks_used) * 100 + (blocks_used + s.f_bavail)/2 ) / (blocks_used + s.f_bavail); } if (strcmp(device, "rootfs") == 0) { continue; } else if (strcmp(device, "/dev/root") == 0) { /* Adjusts device to be the real root device, * or leaves device alone if it can't find it */ if ((device = find_real_root_device_name(device)) == NULL) { goto SET_ERROR; } } #ifdef CONFIG_FEATURE_HUMAN_READABLE bb_printf("%-21s%9s ", device, make_human_readable_str(s.f_blocks, s.f_bsize, df_disp_hr)); sprintf(df_entry, "%-21s%9s ", device, make_human_readable_str(s.f_blocks, s.f_bsize, df_disp_hr)); entry_len = strlen(df_entry); bb_printf("%9s ", make_human_readable_str( (s.f_blocks - s.f_bfree), s.f_bsize, df_disp_hr)); sprintf(df_entry + entry_len, "%9s ", make_human_readable_str( (s.f_blocks - s.f_bfree), s.f_bsize, df_disp_hr)); entry_len = strlen(df_entry); bb_printf("%9s %3ld%% %s\n", make_human_readable_str(s.f_bavail, s.f_bsize, df_disp_hr), blocks_percent_used, mount_point); sprintf(df_entry + entry_len, "%9s %3ld%% %s\n", make_human_readable_str(s.f_bavail, s.f_bsize, df_disp_hr), blocks_percent_used, mount_point); entry_len = strlen(df_entry); // output df table to file, Added By Nick Wang, 01/05/02005 { FILE *fp; if ((fp = fopen("/var/.sys-df", "a")) != NULL) fprintf(fp, "%s\n", df_entry); (void) fclose(fp); } // Added End #else bb_printf("%-21s%9ld %9ld %9ld %3ld%% %s\n", device, kscale(s.f_blocks, s.f_bsize), kscale(s.f_blocks-s.f_bfree, s.f_bsize), kscale(s.f_bavail, s.f_bsize), blocks_percent_used, mount_point); #endif } } while (1); bb_fflush_stdout_and_exit(status); }
static void show_mounts(char *onlytype) { #if defined BB_FEATURE_USE_DEVPS_PATCH int fd, i, numfilesystems; char device[] = "/dev/mtab"; struct k_mntent *mntentlist; /* open device */ fd = open(device, O_RDONLY); if (fd < 0) perror_msg_and_die("open failed for `%s'", device); /* How many mounted filesystems? We need to know to * allocate enough space for later... */ numfilesystems = ioctl (fd, DEVMTAB_COUNT_MOUNTS); if (numfilesystems<0) perror_msg_and_die( "\nDEVMTAB_COUNT_MOUNTS"); mntentlist = (struct k_mntent *) xcalloc ( numfilesystems, sizeof(struct k_mntent)); /* Grab the list of mounted filesystems */ if (ioctl (fd, DEVMTAB_GET_MOUNTS, mntentlist)<0) perror_msg_and_die( "\nDEVMTAB_GET_MOUNTS"); for( i = 0 ; i < numfilesystems ; i++) { if ( !onlytype || ( strcmp ( mntentlist[i].mnt_type, onlytype ) == 0 )) { printf( "%s %s %s %s %d %d\n", mntentlist[i].mnt_fsname, mntentlist[i].mnt_dir, mntentlist[i].mnt_type, mntentlist[i].mnt_opts, mntentlist[i].mnt_freq, mntentlist[i].mnt_passno); } } #ifdef BB_FEATURE_CLEAN_UP /* Don't bother to close files or free memory. Exit * does that automagically, so we can save a few bytes */ free( mntentlist); close(fd); #endif exit(EXIT_SUCCESS); #else FILE *mountTable = setmntent(mtab_file, "r"); if (mountTable) { struct mntent *m; while ((m = getmntent(mountTable)) != 0) { char *blockDevice = m->mnt_fsname; if (strcmp(blockDevice, "/dev/root") == 0) { blockDevice = find_real_root_device_name(blockDevice); } if ( !onlytype || ( strcmp ( m-> mnt_type, onlytype ) == 0 )) { printf("%s on %s type %s (%s)\n", blockDevice, m->mnt_dir, m->mnt_type, m->mnt_opts); } #ifdef BB_FEATURE_CLEAN_UP if(blockDevice != m->mnt_fsname) free(blockDevice); #endif } endmntent(mountTable); } else { perror_msg_and_die("%s", mtab_file); } exit(EXIT_SUCCESS); #endif }