diff options
| author | Rob Landley <rob@landley.net> | 2019-12-10 15:54:13 -0800 |
|---|---|---|
| committer | Rob Landley <rob@landley.net> | 2020-03-26 17:53:48 -0500 |
| commit | cc803fb5fb0a3510412270f03ccb9c4a266020ec (patch) | |
| tree | aa66302e91d73d16ac7b4604aebc6aa7146ce36a | |
| parent | 729f1de79c7c24745716f6781457fd46b58c456d (diff) | |
| download | toybox-cc803fb5fb0a3510412270f03ccb9c4a266020ec.tar.gz | |
du: Implement -b
| -rw-r--r-- | toys/posix/du.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/toys/posix/du.c b/toys/posix/du.c index e7334d1a..31cc87bc 100644 --- a/toys/posix/du.c +++ b/toys/posix/du.c @@ -4,9 +4,11 @@ * * See http://opengroup.org/onlinepubs/9699919799/utilities/du.html * - * TODO: cleanup + * TODO: cleanup (should seen_inode be lib?) + * 32 bit du -b maxes out at 4 gigs (instead of 2 terabytes via *512 trick) + * because dirtree->extra is a long. -USE_DU(NEWTOY(du, "d#<0=-1hmlcaHkKLsx[-HL][-kKmh]", TOYFLAG_USR|TOYFLAG_BIN)) +USE_DU(NEWTOY(du, "d#<0=-1hmlcaHkKLsxb[-HL][-kKmh]", TOYFLAG_USR|TOYFLAG_BIN)) config DU bool "du" @@ -17,6 +19,7 @@ config DU Show disk usage, space consumed by files and directories. Size in: + -b apparent bytes (directory listing size, not space used) -k 1024 byte blocks (default) -K 512 byte blocks (posix) -m Megabytes @@ -65,7 +68,8 @@ static void print(long long size, struct dirtree *node) if (FLAG(K)) bits = 9; else if (FLAG(m)) bits = 20; - printf("%llu", (size>>bits)+!!(size&((1<<bits)-1))); + if (FLAG(b) && bits == 10 && !FLAG(k)) printf("%llu", size); + else printf("%llu", (size>>bits)+!!(size&((1<<bits)-1))); } if (node) name = dirtree_path(node, NULL); xprintf("\t%s\n", name); @@ -138,7 +142,8 @@ static int do_du(struct dirtree *node) // Modern compilers' optimizers are insane and think signed overflow // behaves differently than unsigned overflow. Sigh. Big hammer. - blocks = node->st.st_blocks + (unsigned long)node->extra; + blocks = FLAG(b) ? node->st.st_size : node->st.st_blocks; + blocks += (unsigned long)node->extra; node->extra = blocks; if (node->parent) node->parent->extra = (unsigned long)node->parent->extra+blocks; @@ -146,7 +151,7 @@ static int do_du(struct dirtree *node) if (FLAG(a) || !node->parent || (S_ISDIR(node->st.st_mode) && !FLAG(s))) { blocks = node->extra; - print(blocks*512LL, node); + print(FLAG(b) ? blocks : blocks*512LL, node); } return 0; @@ -160,7 +165,7 @@ void du_main(void) for (args = toys.optc ? toys.optargs : noargs; *args; args++) dirtree_flagread(*args, DIRTREE_SYMFOLLOW*!!(toys.optflags&(FLAG_H|FLAG_L)), do_du); - if (FLAG(c)) print(TT.total*512, 0); + if (FLAG(c)) print(FLAG(b) ? TT.total : TT.total*512, 0); if (CFG_TOYBOX_FREE) seen_inode(TT.inodes, 0); } |