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-rw-r--r--toys/ls.c493
1 files changed, 0 insertions, 493 deletions
diff --git a/toys/ls.c b/toys/ls.c
deleted file mode 100644
index 1881df71..00000000
--- a/toys/ls.c
+++ /dev/null
@@ -1,493 +0,0 @@
-/* vi: set sw=4 ts=4:
- *
- * ls.c - list files
- *
- * Copyright 2012 Andre Renaud <andre@bluewatersys.com>
- * Copyright 2012 Rob Landley <rob@landley.net>
- *
- * See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/ls.html
-
-// "[-Cl]"
-USE_LS(NEWTOY(ls, "goACFHLRSacdfiklmnpqrstux1", TOYFLAG_BIN))
-
-config LS
- bool "ls"
- default y
- help
- usage: ls [-ACFHLRSacdfiklmnpqrstux1] [directory...]
- list files
-
- what to show:
- -a all files including .hidden
- -c use ctime for timestamps
- -d directory, not contents
- -i inode number
- -k block sizes in kilobytes
- -p put a '/' after directory names
- -q unprintable chars as '?'
- -s size (in blocks)
- -u use access time for timestamps
- -A list all files except . and ..
- -H follow command line symlinks
- -L follow symlinks
- -R recursively list files in subdirectories
- -F append file type indicator (/=dir, *=exe, @=symlink, |=FIFO)
-
- output formats:
- -1 list one file per line
- -C columns (sorted vertically)
- -g like -l but no owner
- -l long (show full details for each file)
- -m comma separated
- -n like -l but numeric uid/gid
- -o like -l but no group
- -x columns (sorted horizontally)
-
- sorting (default is alphabetical):
- -f unsorted
- -r reverse
- -t timestamp
- -S size
-*/
-
-#include "toys.h"
-
-#define FLAG_1 (1<<0)
-#define FLAG_x (1<<1)
-#define FLAG_u (1<<2)
-#define FLAG_t (1<<3)
-#define FLAG_s (1<<4)
-#define FLAG_r (1<<5)
-#define FLAG_q (1<<6)
-#define FLAG_p (1<<7)
-#define FLAG_n (1<<8)
-#define FLAG_m (1<<9)
-#define FLAG_l (1<<10)
-#define FLAG_k (1<<11)
-#define FLAG_i (1<<12)
-#define FLAG_f (1<<13)
-#define FLAG_d (1<<14)
-#define FLAG_c (1<<15)
-#define FLAG_a (1<<16)
-#define FLAG_S (1<<17)
-#define FLAG_R (1<<18)
-#define FLAG_L (1<<19)
-#define FLAG_H (1<<20)
-#define FLAG_F (1<<21)
-#define FLAG_C (1<<22)
-#define FLAG_A (1<<23)
-#define FLAG_o (1<<24)
-#define FLAG_g (1<<25)
-
-// test sst output (suid/sticky in ls flaglist)
-
-// ls -lR starts .: then ./subdir:
-
-DEFINE_GLOBALS(
- struct dirtree *files;
-
- unsigned screen_width;
- int nl_title;
-
- // group and user can make overlapping use of the utoa() buf, so move it
- char uid_buf[12];
-)
-
-#define TT this.ls
-
-void dlist_to_dirtree(struct dirtree *parent)
-{
- // Turn double_list into dirtree
- struct dirtree *dt = parent->child;
- if (dt) {
- dt->parent->next = NULL;
- while (dt) {
- dt->parent = parent;
- dt = dt->next;
- }
- }
-}
-
-static char endtype(struct stat *st)
-{
- mode_t mode = st->st_mode;
- if ((toys.optflags&(FLAG_F|FLAG_p)) && S_ISDIR(mode)) return '/';
- if (toys.optflags & FLAG_F) {
- if (S_ISLNK(mode)) return '@';
- if (S_ISREG(mode) && (mode&0111)) return '*';
- if (S_ISFIFO(mode)) return '|';
- if (S_ISSOCK(mode)) return '=';
- }
- return 0;
-}
-
-static char *getusername(uid_t uid)
-{
- struct passwd *pw = getpwuid(uid);
- utoa_to_buf(uid, TT.uid_buf, 12);
- return pw ? pw->pw_name : TT.uid_buf;
-}
-
-static char *getgroupname(gid_t gid)
-{
- struct group *gr = getgrgid(gid);
- return gr ? gr->gr_name : utoa(gid);
-}
-
-// Figure out size of printable entry fields for display indent/wrap
-
-static void entrylen(struct dirtree *dt, unsigned *len)
-{
- struct stat *st = &(dt->st);
- unsigned flags = toys.optflags;
-
- *len = strlen(dt->name);
- if (endtype(st)) ++*len;
- if (flags & FLAG_m) ++*len;
-
- if (flags & FLAG_i) *len += (len[1] = numlen(st->st_ino));
- if (flags & (FLAG_l|FLAG_o|FLAG_n|FLAG_g)) {
- unsigned fn = flags & FLAG_n;
- len[2] = numlen(st->st_nlink);
- len[3] = strlen(fn ? utoa(st->st_uid) : getusername(st->st_uid));
- len[4] = strlen(fn ? utoa(st->st_gid) : getgroupname(st->st_gid));
- len[5] = numlen(st->st_size);
- }
- if (flags & FLAG_s) *len += (len[6] = numlen(st->st_blocks));
-}
-
-static int compare(void *a, void *b)
-{
- struct dirtree *dta = *(struct dirtree **)a;
- struct dirtree *dtb = *(struct dirtree **)b;
- int ret = 0, reverse = (toys.optflags & FLAG_r) ? -1 : 1;
-
- if (toys.optflags & FLAG_S) {
- if (dta->st.st_size > dtb->st.st_size) ret = -1;
- else if (dta->st.st_size < dtb->st.st_size) ret = 1;
- }
- if (toys.optflags & FLAG_t) {
- if (dta->st.st_mtime > dtb->st.st_mtime) ret = -1;
- else if (dta->st.st_mtime < dtb->st.st_mtime) ret = 1;
- }
- if (!ret) ret = strcmp(dta->name, dtb->name);
- return ret * reverse;
-}
-
-// callback from dirtree_recurse() determining how to handle this entry.
-
-static int filter(struct dirtree *new)
-{
- int flags = toys.optflags;
-
- // Special case to handle enormous dirs without running out of memory.
- if (flags == (FLAG_1|FLAG_f)) {
- xprintf("%s\n", new->name);
- return 0;
- }
-
- if (!(flags&FLAG_f)) {
- if (flags & FLAG_a) return 0;
- if (!(flags & FLAG_A) && new->name[0]=='.') return 0;
- }
-
- if (flags & FLAG_u) new->st.st_mtime = new->st.st_atime;
- if (flags & FLAG_c) new->st.st_mtime = new->st.st_ctime;
- if (flags & FLAG_k) new->st.st_blocks = (new->st.st_blocks + 1) / 2;
- return dirtree_notdotdot(new);
-}
-
-// For column view, calculate horizontal position (for padding) and return
-// index of next entry to display.
-
-static unsigned long next_column(unsigned long ul, unsigned long dtlen,
- unsigned columns, unsigned *xpos)
-{
- unsigned long transition;
- unsigned height, widecols;
-
- // Horizontal sort is easy
- if (!(toys.optflags & FLAG_C)) {
- *xpos = ul % columns;
- return ul;
- }
-
- // vertical sort
-
- // For -x, calculate height of display, rounded up
- height = (dtlen+columns-1)/columns;
-
- // Sanity check: does wrapping render this column count impossible
- // due to the right edge wrapping eating a whole row?
- if (height*columns - dtlen >= height) {
- *xpos = columns;
- return 0;
- }
-
- // Uneven rounding goes along right edge
- widecols = dtlen % height;
- if (!widecols) widecols = height;
- transition = widecols * columns;
- if (ul < transition) {
- *xpos = ul % columns;
- return (*xpos*height) + (ul/columns);
- }
-
- ul -= transition;
- *xpos = ul % (columns-1);
-
- return (*xpos*height) + widecols + (ul/(columns-1));
-}
-
-// Display a list of dirtree entries, according to current format
-// Output types -1, -l, -C, or stream
-
-static void listfiles(int dirfd, struct dirtree *indir)
-{
- struct dirtree *dt, **sort = 0;
- unsigned long dtlen = 0, ul = 0;
- unsigned width, flags = toys.optflags, totals[7], len[7],
- *colsizes = (unsigned *)(toybuf+260), columns = (sizeof(toybuf)-260)/4;
-
- memset(totals, 0, sizeof(totals));
-
- // Silently descend into single directory listed by itself on command line.
- // In this case only show dirname/total header when given -R.
- if (!indir->parent) {
- if (!(dt = indir->child)) return;
- if (S_ISDIR(dt->st.st_mode) && !dt->next && !(flags & FLAG_d)) {
- dt->extra = 1;
- listfiles(open(dt->name, 0), dt);
- return;
- }
- } else {
- // Read directory contents. We dup() the fd because this will close it.
- indir->data = dup(dirfd);
- dirtree_recurse(indir, filter, (flags&FLAG_L));
- }
-
- // Copy linked list to array and sort it. Directories go in array because
- // we visit them in sorted order.
-
- for (;;) {
- for (dt = indir->child; dt; dt = dt->next) {
- if (sort) sort[dtlen] = dt;
- dtlen++;
- }
- if (sort) break;
- sort = xmalloc(dtlen * sizeof(void *));
- dtlen = 0;
- continue;
- }
-
- // Label directory if not top of tree, or if -R
- if (indir->parent && (!indir->extra || (flags & FLAG_R)))
- {
- char *path = dirtree_path(indir, 0);
-
- if (TT.nl_title++) xputc('\n');
- xprintf("%s:\n", path);
- free(path);
- }
-
- if (!(flags & FLAG_f)) qsort(sort, dtlen, sizeof(void *), (void *)compare);
-
- // Find largest entry in each field for display alignment
- if (flags & (FLAG_C|FLAG_x)) {
-
- // columns can't be more than toybuf can hold, or more than files,
- // or > 1/2 screen width (one char filename, one space).
- if (columns > TT.screen_width/2) columns = TT.screen_width/2;
- if (columns > dtlen) columns = dtlen;
-
- // Try to fit as many columns as we can, dropping down by one each time
- for (;columns > 1; columns--) {
- unsigned c, totlen = columns;
-
- memset(colsizes, 0, columns*sizeof(unsigned));
- for (ul=0; ul<dtlen; ul++) {
- entrylen(sort[next_column(ul, dtlen, columns, &c)], len);
- if (c == columns) break;
- // Does this put us over budget?
- if (*len > colsizes[c]) {
- totlen += *len-colsizes[c];
- colsizes[c] = *len;
- if (totlen > TT.screen_width) break;
- }
- }
- // If it fit, stop here
- if (ul == dtlen) break;
- }
- } else if (flags & (FLAG_l|FLAG_o|FLAG_n|FLAG_g|FLAG_s)) {
- unsigned long blocks = 0;
-
- for (ul = 0; ul<dtlen; ul++)
- {
- entrylen(sort[ul], len);
- for (width=0; width<6; width++)
- if (len[width] > totals[width]) totals[width] = len[width];
- blocks += sort[ul]->st.st_blocks;
- }
-
- if (indir->parent) xprintf("total %lu\n", blocks);
- }
-
- // Loop through again to produce output.
- memset(toybuf, ' ', 256);
- width = 0;
- for (ul = 0; ul<dtlen; ul++) {
- unsigned curcol;
- unsigned long next = next_column(ul, dtlen, columns, &curcol);
- struct stat *st = &(sort[next]->st);
- mode_t mode = st->st_mode;
- char et = endtype(st);
-
- // Skip directories at the top of the tree when -d isn't set
- if (S_ISDIR(mode) && !indir->parent && !(flags & FLAG_d)) continue;
- TT.nl_title=1;
-
- // Handle padding and wrapping for display purposes
- entrylen(sort[next], len);
- if (ul) {
- if (flags & FLAG_m) xputc(',');
- if (flags & (FLAG_C|FLAG_x)) {
- if (!curcol) xputc('\n');
- } else if ((flags & FLAG_1) || width+1+*len > TT.screen_width) {
- xputc('\n');
- width = 0;
- } else {
- xputc(' ');
- width++;
- }
- }
- width += *len;
-
- if (flags & FLAG_i)
- xprintf("% *lu ", len[1], (unsigned long)st->st_ino);
- if (flags & FLAG_s)
- xprintf("% *lu ", len[6], (unsigned long)st->st_blocks);
-
- if (flags & (FLAG_l|FLAG_o|FLAG_n|FLAG_g)) {
- struct tm *tm;
- char perm[11], thyme[64], c, d, *usr, *upad, *grp, *grpad;
- int i, bit;
-
- perm[10]=0;
- for (i=0; i<9; i++) {
- bit = mode & (1<<i);
- c = i%3;
- if (!c && (mode & (1<<((d=i/3)+9)))) {
- c = "tss"[d];
- if (!bit) c &= ~0x20;
- } else c = bit ? "xwr"[c] : '-';
- perm[9-i] = c;
- }
-
- if (S_ISDIR(mode)) c = 'd';
- else if (S_ISBLK(mode)) c = 'b';
- else if (S_ISCHR(mode)) c = 'c';
- else if (S_ISLNK(mode)) c = 'l';
- else if (S_ISFIFO(mode)) c = 'p';
- else if (S_ISSOCK(mode)) c = 's';
- else c = '-';
- *perm = c;
-
- tm = localtime(&(st->st_mtime));
- strftime(thyme, sizeof(thyme), "%F %H:%M", tm);
-
- if (flags&FLAG_o) grp = grpad = toybuf+256;
- else {
- grp = (flags&FLAG_n) ? utoa(st->st_gid)
- : getgroupname(st->st_gid);
- grpad = toybuf+256-(totals[4]-len[4]);
- }
-
- if (flags&FLAG_g) usr = upad = toybuf+256;
- else {
- upad = toybuf+255-(totals[3]-len[3]);
- if (flags&FLAG_n) {
- usr = TT.uid_buf;
- utoa_to_buf(st->st_uid, TT.uid_buf, 12);
- } else usr = getusername(st->st_uid);
- }
-
- // Coerce the st types into something we know we can print.
- xprintf("%s% *ld %s%s%s%s% *"PRId64" %s ", perm, totals[2]+1,
- (long)st->st_nlink, usr, upad, grp, grpad, totals[5]+1,
- (int64_t)st->st_size, thyme);
- }
-
- if (flags & FLAG_q) {
- char *p;
- for (p=sort[next]->name; *p; p++) xputc(isprint(*p) ? *p : '?');
- } else xprintf("%s", sort[next]->name);
- if ((flags & (FLAG_l|FLAG_o|FLAG_n|FLAG_g)) && S_ISLNK(mode))
- xprintf(" -> %s", sort[next]->symlink);
-
- if (et) xputc(et);
-
- // Pad columns
- if (flags & (FLAG_C|FLAG_x)) {
- curcol = colsizes[curcol] - *len;
- if (curcol >= 0) xprintf("%s", toybuf+255-curcol);
- }
- }
-
- if (width) xputc('\n');
-
- // Free directory entries, recursing first if necessary.
-
- for (ul = 0; ul<dtlen; free(sort[ul++])) {
- if ((flags & FLAG_d) || !S_ISDIR(sort[ul]->st.st_mode)
- || !dirtree_notdotdot(sort[ul])) continue;
-
- // Recurse into dirs if at top of the tree or given -R
- if (!indir->parent || (flags & FLAG_R))
- listfiles(openat(dirfd, sort[ul]->name, 0), sort[ul]);
- }
- free(sort);
- if (dirfd != AT_FDCWD) close(indir->data);
-}
-
-void ls_main(void)
-{
- char **s, *noargs[] = {".", 0};
- struct dirtree *dt;
-
- // Do we have an implied -1
- if (!isatty(1) || (toys.optflags&(FLAG_l|FLAG_o|FLAG_n|FLAG_g)))
- toys.optflags |= FLAG_1;
- else {
- TT.screen_width = 80;
- terminal_size(&TT.screen_width, NULL);
- }
- // The optflags parsing infrastructure should really do this for us,
- // but currently it has "switch off when this is set", so "-dR" and "-Rd"
- // behave differently
- if (toys.optflags & FLAG_d) toys.optflags &= ~FLAG_R;
-
- // Iterate through command line arguments, collecting directories and files.
- // Non-absolute paths are relative to current directory.
- TT.files = dirtree_add_node(0, 0, 0);
- for (s = *toys.optargs ? toys.optargs : noargs; *s; s++) {
- dt = dirtree_add_node(AT_FDCWD, *s,
- (toys.optflags & (FLAG_L|FLAG_H|FLAG_l))^FLAG_l);
-
- if (!dt) {
- toys.exitval = 1;
- continue;
- }
-
- // Typecast means double_list->prev temporarirly goes in dirtree->parent
- dlist_add_nomalloc((struct double_list **)&TT.files->child,
- (struct double_list *)dt);
- }
-
- // Turn double_list into dirtree
- dlist_to_dirtree(TT.files);
-
- // Display the files we collected
- listfiles(AT_FDCWD, TT.files);
-
- if (CFG_TOYBOX_FREE) free(TT.files);
-}
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