Changeset 2725 in MondoRescue for branches/2.2.9/mindi-busybox/coreutils/df.c
- Timestamp:
- Feb 25, 2011, 9:26:54 PM (13 years ago)
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- 1 edited
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branches/2.2.9/mindi-busybox/coreutils/df.c
r1765 r2725 6 6 * based on original code by (I think) Bruce Perens <bruce@pixar.com>. 7 7 * 8 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.8 * Licensed under GPLv2 or later, see file LICENSE in this source tree. 9 9 */ 10 10 11 /* BB_AUDIT SUSv3 _NOT_ compliant -- option s -P and -t missing. Also blocksize. */11 /* BB_AUDIT SUSv3 _NOT_ compliant -- option -t missing. */ 12 12 /* http://www.opengroup.org/onlinepubs/007904975/utilities/df.html */ 13 13 … … 17 17 * on output. Output stats on 0-sized filesystems if specifically listed on 18 18 * the command line. Properly round *-blocks, Used, and Available quantities. 19 * 20 * Aug 28, 2008 Bernhard Reutner-Fischer 21 * 22 * Implement -P and -B; better coreutils compat; cleanup 19 23 */ 20 24 … … 22 26 #include <sys/vfs.h> 23 27 #include "libbb.h" 28 #include "unicode.h" 24 29 25 30 #if !ENABLE_FEATURE_HUMAN_READABLE … … 30 35 #endif 31 36 32 int df_main(int argc, char **argv) ;33 int df_main(int argc , char **argv)37 int df_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; 38 int df_main(int argc UNUSED_PARAM, char **argv) 34 39 { 35 40 unsigned long blocks_used; 36 41 unsigned blocks_percent_used; 37 #if ENABLE_FEATURE_HUMAN_READABLE 38 unsigned df_disp_hr = 1024; 39 #endif 42 unsigned long df_disp_hr = 1024; 40 43 int status = EXIT_SUCCESS; 41 44 unsigned opt; … … 43 46 struct mntent *mount_entry; 44 47 struct statfs s; 45 /* default display is kilobytes */ 46 const char *disp_units_hdr = "1k-blocks"; 47 48 #if ENABLE_FEATURE_HUMAN_READABLE 49 opt_complementary = "h-km:k-hm:m-hk"; 50 opt = getopt32(argv, "hmk"); 51 if (opt & 1) { 48 49 enum { 50 OPT_KILO = (1 << 0), 51 OPT_POSIX = (1 << 1), 52 OPT_ALL = (1 << 2) * ENABLE_FEATURE_DF_FANCY, 53 OPT_INODE = (1 << 3) * ENABLE_FEATURE_DF_FANCY, 54 OPT_BSIZE = (1 << 4) * ENABLE_FEATURE_DF_FANCY, 55 OPT_HUMAN = (1 << (2 + 3*ENABLE_FEATURE_DF_FANCY)) * ENABLE_FEATURE_HUMAN_READABLE, 56 OPT_MEGA = (1 << (3 + 3*ENABLE_FEATURE_DF_FANCY)) * ENABLE_FEATURE_HUMAN_READABLE, 57 }; 58 const char *disp_units_hdr = NULL; 59 char *chp; 60 61 init_unicode(); 62 63 #if ENABLE_FEATURE_HUMAN_READABLE && ENABLE_FEATURE_DF_FANCY 64 opt_complementary = "k-mB:m-Bk:B-km"; 65 #elif ENABLE_FEATURE_HUMAN_READABLE 66 opt_complementary = "k-m:m-k"; 67 #endif 68 opt = getopt32(argv, "kP" 69 IF_FEATURE_DF_FANCY("aiB:") 70 IF_FEATURE_HUMAN_READABLE("hm") 71 IF_FEATURE_DF_FANCY(, &chp)); 72 if (opt & OPT_MEGA) 73 df_disp_hr = 1024*1024; 74 75 if (opt & OPT_BSIZE) 76 df_disp_hr = xatoul_range(chp, 1, ULONG_MAX); /* disallow 0 */ 77 78 /* From the manpage of df from coreutils-6.10: 79 Disk space is shown in 1K blocks by default, unless the environment 80 variable POSIXLY_CORRECT is set, in which case 512-byte blocks are used. 81 */ 82 if (getenv("POSIXLY_CORRECT")) /* TODO - a new libbb function? */ 83 df_disp_hr = 512; 84 85 if (opt & OPT_HUMAN) { 52 86 df_disp_hr = 0; 53 87 disp_units_hdr = " Size"; 54 88 } 55 if (opt & 2) { 56 df_disp_hr = 1024*1024; 57 disp_units_hdr = "1M-blocks"; 58 } 89 if (opt & OPT_INODE) 90 disp_units_hdr = " Inodes"; 91 92 if (disp_units_hdr == NULL) { 93 #if ENABLE_FEATURE_HUMAN_READABLE 94 disp_units_hdr = xasprintf("%s-blocks", 95 /* print df_disp_hr, show no fractionals, 96 * use suffixes if OPT_POSIX is set in opt */ 97 make_human_readable_str(df_disp_hr, 0, !!(opt & OPT_POSIX)) 98 ); 59 99 #else 60 opt = getopt32(argv, "k");61 #endif 62 63 printf("Filesystem %11s%-15sUsed Available Use%%Mounted on\n",64 "", disp_units_hdr);100 disp_units_hdr = xasprintf("%lu-blocks", df_disp_hr); 101 #endif 102 } 103 printf("Filesystem %-15sUsed Available %s Mounted on\n", 104 disp_units_hdr, (opt & OPT_POSIX) ? "Capacity" : "Use%"); 65 105 66 106 mount_table = NULL; 67 107 argv += optind; 68 if ( optind >= argc) {108 if (!argv[0]) { 69 109 mount_table = setmntent(bb_path_mtab_file, "r"); 70 if (!mount_table) {110 if (!mount_table) 71 111 bb_perror_msg_and_die(bb_path_mtab_file); 72 }73 112 } 74 113 … … 85 124 } else { 86 125 mount_point = *argv++; 87 if (!mount_point) {126 if (!mount_point) 88 127 break; 89 } 90 mount_entry = find_mount_point(mount_point, bb_path_mtab_file); 128 mount_entry = find_mount_point(mount_point, 1); 91 129 if (!mount_entry) { 92 130 bb_error_msg("%s: can't find mount point", mount_point); 93 SET_ERROR:131 set_error: 94 132 status = EXIT_FAILURE; 95 133 continue; … … 101 139 102 140 if (statfs(mount_point, &s) != 0) { 103 bb_ perror_msg("%s",mount_point);104 goto SET_ERROR;141 bb_simple_perror_msg(mount_point); 142 goto set_error; 105 143 } 106 144 107 if ((s.f_blocks > 0) || !mount_table){ 145 if ((s.f_blocks > 0) || !mount_table || (opt & OPT_ALL)) { 146 if (opt & OPT_INODE) { 147 s.f_blocks = s.f_files; 148 s.f_bavail = s.f_bfree = s.f_ffree; 149 s.f_bsize = 1; 150 151 if (df_disp_hr) 152 df_disp_hr = 1; 153 } 108 154 blocks_used = s.f_blocks - s.f_bfree; 109 155 blocks_percent_used = 0; … … 114 160 } 115 161 116 if (strcmp(device, "rootfs") == 0) { 162 /* GNU coreutils 6.10 skips certain mounts, try to be compatible. */ 163 if (strcmp(device, "rootfs") == 0) 117 164 continue; 118 } else if (strcmp(device, "/dev/root") == 0) { 165 166 #ifdef WHY_WE_DO_IT_FOR_DEV_ROOT_ONLY 167 if (strcmp(device, "/dev/root") == 0) { 119 168 /* Adjusts device to be the real root device, 120 * or leaves device alone if it can't find it */169 * or leaves device alone if it can't find it */ 121 170 device = find_block_device("/"); 122 171 if (!device) { 123 goto SET_ERROR;172 goto set_error; 124 173 } 125 174 } 126 175 #endif 176 177 #if ENABLE_UNICODE_SUPPORT 178 { 179 uni_stat_t uni_stat; 180 char *uni_dev = unicode_conv_to_printable(&uni_stat, device); 181 if (uni_stat.unicode_width > 20) { 182 printf("%s\n%20s", uni_dev, ""); 183 } else { 184 printf("%s%*s", uni_dev, 20 - (int)uni_stat.unicode_width, ""); 185 } 186 free(uni_dev); 187 } 188 #else 127 189 if (printf("\n%-20s" + 1, device) > 20) 128 190 printf("\n%-20s", ""); 191 #endif 192 129 193 #if ENABLE_FEATURE_HUMAN_READABLE 130 194 printf(" %9s ", 195 /* f_blocks x f_bsize / df_disp_hr, show one fractional, 196 * use suffixes if df_disp_hr == 0 */ 131 197 make_human_readable_str(s.f_blocks, s.f_bsize, df_disp_hr)); 132 198 133 199 printf(" %9s " + 1, 200 /* EXPR x f_bsize / df_disp_hr, show one fractional, 201 * use suffixes if df_disp_hr == 0 */ 134 202 make_human_readable_str((s.f_blocks - s.f_bfree), 135 203 s.f_bsize, df_disp_hr)); 136 204 137 205 printf("%9s %3u%% %s\n", 138 make_human_readable_str(s.f_bavail, s.f_bsize, df_disp_hr), 139 blocks_percent_used, mount_point); 206 /* f_bavail x f_bsize / df_disp_hr, show one fractional, 207 * use suffixes if df_disp_hr == 0 */ 208 make_human_readable_str(s.f_bavail, s.f_bsize, df_disp_hr), 209 blocks_percent_used, mount_point); 140 210 #else 141 211 printf(" %9lu %9lu %9lu %3u%% %s\n", 142 143 kscale(s.f_blocks-s.f_bfree, s.f_bsize),144 145 212 kscale(s.f_blocks, s.f_bsize), 213 kscale(s.f_blocks - s.f_bfree, s.f_bsize), 214 kscale(s.f_bavail, s.f_bsize), 215 blocks_percent_used, mount_point); 146 216 #endif 147 217 } 148 218 } 149 219 150 fflush_stdout_and_exit(status);220 return status; 151 221 }
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