The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <string.h> |
| 4 | #include <errno.h> |
| 5 | #include <sys/statfs.h> |
| 6 | |
| 7 | static int ok = EXIT_SUCCESS; |
| 8 | |
Brian Swetland | 09dd3e5 | 2010-09-11 18:19:35 -0700 | [diff] [blame] | 9 | static void printsize(long long n) |
| 10 | { |
| 11 | char unit = 'K'; |
| 12 | n /= 1024; |
| 13 | if (n > 1024) { |
| 14 | n /= 1024; |
| 15 | unit = 'M'; |
| 16 | } |
| 17 | if (n > 1024) { |
| 18 | n /= 1024; |
| 19 | unit = 'G'; |
| 20 | } |
| 21 | printf("%4lld%c", n, unit); |
| 22 | } |
| 23 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 24 | static void df(char *s, int always) { |
| 25 | struct statfs st; |
| 26 | |
| 27 | if (statfs(s, &st) < 0) { |
| 28 | fprintf(stderr, "%s: %s\n", s, strerror(errno)); |
| 29 | ok = EXIT_FAILURE; |
| 30 | } else { |
| 31 | if (st.f_blocks == 0 && !always) |
Brian Swetland | 09dd3e5 | 2010-09-11 18:19:35 -0700 | [diff] [blame] | 32 | return; |
| 33 | printf("%-20s ", s); |
| 34 | printsize((long long)st.f_blocks * (long long)st.f_bsize); |
| 35 | printf(" "); |
| 36 | printsize((long long)(st.f_blocks - (long long)st.f_bfree) * st.f_bsize); |
| 37 | printf(" "); |
| 38 | printsize((long long)st.f_bfree * (long long)st.f_bsize); |
| 39 | printf(" %d\n", (int) st.f_bsize); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 40 | } |
| 41 | } |
| 42 | |
| 43 | int df_main(int argc, char *argv[]) { |
Brian Swetland | 09dd3e5 | 2010-09-11 18:19:35 -0700 | [diff] [blame] | 44 | printf("Filesystem Size Used Free Blksize\n"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 45 | if (argc == 1) { |
| 46 | char s[2000]; |
| 47 | FILE *f = fopen("/proc/mounts", "r"); |
| 48 | |
| 49 | while (fgets(s, 2000, f)) { |
| 50 | char *c, *e = s; |
| 51 | |
| 52 | for (c = s; *c; c++) { |
| 53 | if (*c == ' ') { |
| 54 | e = c + 1; |
| 55 | break; |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | for (c = e; *c; c++) { |
| 60 | if (*c == ' ') { |
| 61 | *c = '\0'; |
| 62 | break; |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | df(e, 0); |
| 67 | } |
| 68 | |
| 69 | fclose(f); |
| 70 | } else { |
| 71 | int i; |
| 72 | |
| 73 | for (i = 1; i < argc; i++) { |
| 74 | df(argv[i], 1); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | exit(ok); |
| 79 | } |