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ls: implement -Q and -g (-g was accepted but ignored)
function old new delta print_name - 198 +198 showfiles 1489 1508 +19 ls_options 30 31 +1 opt_flags 112 108 -4 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 2/1 up/down: 218/-4) Total: 214 bytes
This commit is contained in:
Denis Vlasenko
parent
11a6f9b44f
commit
248ce91017
236
coreutils/ls.c
236
coreutils/ls.c
@ -118,6 +118,103 @@ SPLIT_SUBDIR = 2,
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#define ATTR(mode) ("\00\00\01\00\01\00\01\00"\
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"\00\00\01\00\01\00\00\01" [TYPEINDEX(mode)])
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/* "[-]Cadil1", POSIX mandated options, busybox always supports */
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/* "[-]gnsx", POSIX non-mandated options, busybox always supports */
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/* "[-]Q" GNU option? busybox always supports */
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/* "[-]Ak" GNU options, busybox always supports */
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/* "[-]FLRctur", POSIX mandated options, busybox optionally supports */
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/* "[-]p", POSIX non-mandated options, busybox optionally supports */
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/* "[-]SXvThw", GNU options, busybox optionally supports */
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/* "[-]K", SELinux mandated options, busybox optionally supports */
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/* "[-]e", I think we made this one up */
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static const char ls_options[] ALIGN1 =
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"Cadil1gnsxQAk" /* 13 opts, total 13 */
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USE_FEATURE_LS_TIMESTAMPS("cetu") /* 4, 17 */
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USE_FEATURE_LS_SORTFILES("SXrv") /* 4, 21 */
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USE_FEATURE_LS_FILETYPES("Fp") /* 2, 23 */
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USE_FEATURE_LS_FOLLOWLINKS("L") /* 1, 24 */
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USE_FEATURE_LS_RECURSIVE("R") /* 1, 25 */
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USE_FEATURE_HUMAN_READABLE("h") /* 1, 26 */
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USE_SELINUX("K") /* 1, 27 */
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USE_SELINUX("Z") /* 1, 28 */
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USE_FEATURE_AUTOWIDTH("T:w:") /* 2, 30 */
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;
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enum {
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//OPT_C = (1 << 0),
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//OPT_a = (1 << 1),
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//OPT_d = (1 << 2),
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//OPT_i = (1 << 3),
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//OPT_l = (1 << 4),
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//OPT_1 = (1 << 5),
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OPT_g = (1 << 6),
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//OPT_n = (1 << 7),
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//OPT_s = (1 << 8),
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//OPT_x = (1 << 9),
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OPT_Q = (1 << 10),
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//OPT_A = (1 << 11),
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//OPT_k = (1 << 12),
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};
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enum {
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LIST_MASK_TRIGGER = 0,
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STYLE_MASK_TRIGGER = STYLE_MASK,
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DISP_MASK_TRIGGER = DISP_ROWS,
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SORT_MASK_TRIGGER = SORT_MASK,
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};
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/* TODO: simple toggles may be stored as OPT_xxx bits instead */
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static const unsigned opt_flags[] = {
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LIST_SHORT | STYLE_COLUMNS, /* C */
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DISP_HIDDEN | DISP_DOT, /* a */
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DISP_NOLIST, /* d */
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LIST_INO, /* i */
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LIST_LONG | STYLE_LONG, /* l - remember LS_DISP_HR in mask! */
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LIST_SHORT | STYLE_SINGLE, /* 1 */
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0, /* g (don't show group) - handled via OPT_g */
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LIST_ID_NUMERIC, /* n */
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LIST_BLOCKS, /* s */
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DISP_ROWS, /* x */
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0, /* Q (quote filename) - handled via OPT_Q */
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DISP_HIDDEN, /* A */
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ENABLE_SELINUX * LIST_CONTEXT, /* k (ignored if !SELINUX) */
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#if ENABLE_FEATURE_LS_TIMESTAMPS
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TIME_CHANGE | (ENABLE_FEATURE_LS_SORTFILES * SORT_CTIME), /* c */
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LIST_FULLTIME, /* e */
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ENABLE_FEATURE_LS_SORTFILES * SORT_MTIME, /* t */
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TIME_ACCESS | (ENABLE_FEATURE_LS_SORTFILES * SORT_ATIME), /* u */
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#endif
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#if ENABLE_FEATURE_LS_SORTFILES
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SORT_SIZE, /* S */
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SORT_EXT, /* X */
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SORT_REVERSE, /* r */
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SORT_VERSION, /* v */
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#endif
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#if ENABLE_FEATURE_LS_FILETYPES
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LIST_FILETYPE | LIST_EXEC, /* F */
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LIST_FILETYPE, /* p */
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#endif
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#if ENABLE_FEATURE_LS_FOLLOWLINKS
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FOLLOW_LINKS, /* L */
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#endif
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#if ENABLE_FEATURE_LS_RECURSIVE
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DISP_RECURSIVE, /* R */
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#endif
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#if ENABLE_FEATURE_HUMAN_READABLE
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LS_DISP_HR, /* h */
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#endif
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#if ENABLE_SELINUX
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LIST_MODEBITS|LIST_NLINKS|LIST_CONTEXT|LIST_SIZE|LIST_DATE_TIME, /* K */
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#endif
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#if ENABLE_SELINUX
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LIST_MODEBITS|LIST_ID_NAME|LIST_CONTEXT, /* Z */
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#endif
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(1U<<31)
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/* options after Z are not processed through opt_flags:
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* T, w - ignored
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*/
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};
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/*
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* a directory entry and its stat info are stored here
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*/
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@ -573,6 +670,37 @@ static struct dnode **list_dir(const char *path)
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}
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static int print_name(const char *name)
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{
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if (option_mask32 & OPT_Q) {
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#if ENABLE_FEATURE_ASSUME_UNICODE
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int len = 2 + mbstrlen(name);
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#else
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int len = 2;
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#endif
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putchar('"');
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while (*name) {
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if (*name == '"') {
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putchar('\\');
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len++;
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}
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putchar(*name++);
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if (!ENABLE_FEATURE_ASSUME_UNICODE)
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len++;
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}
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putchar('"');
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return len;
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}
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/* No -Q: */
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#if ENABLE_FEATURE_ASSUME_UNICODE
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fputs(name, stdout);
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return mbstrlen(name);
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#else
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return printf("%s", name);
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#endif
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}
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static int list_single(const struct dnode *dn)
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{
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int i, column = 0;
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@ -617,6 +745,12 @@ static int list_single(const struct dnode *dn)
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break;
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case LIST_ID_NAME:
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#if ENABLE_FEATURE_LS_USERNAME
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if (option_mask32 & OPT_g) {
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printf("%-8.8s",
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get_cached_username(dn->dstat.st_uid));
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column += 9;
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break;
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}
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printf("%-8.8s %-8.8s",
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get_cached_username(dn->dstat.st_uid),
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get_cached_groupname(dn->dstat.st_gid));
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@ -662,21 +796,8 @@ static int list_single(const struct dnode *dn)
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#endif
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#if ENABLE_SELINUX
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case LIST_CONTEXT:
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{
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char context[80];
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int len = 0;
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if (dn->sid) {
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/* I assume sid initilized with NULL */
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len = strlen(dn->sid) + 1;
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safe_strncpy(context, dn->sid, len);
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column += printf("%-32s ", dn->sid ? dn->sid : "unknown");
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freecon(dn->sid);
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} else {
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safe_strncpy(context, "unknown", 8);
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}
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printf("%-32s ", context);
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column += MAX(33, len);
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}
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break;
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#endif
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case LIST_FILENAME:
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@ -687,12 +808,7 @@ static int list_single(const struct dnode *dn)
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fgcolor(info.st_mode));
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}
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#endif
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#if ENABLE_FEATURE_ASSUME_UNICODE
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printf("%s", dn->name);
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column += mbstrlen(dn->name);
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#else
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column += printf("%s", dn->name);
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#endif
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column += print_name(dn->name);
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if (show_color) {
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printf("\033[0m");
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}
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@ -714,7 +830,7 @@ static int list_single(const struct dnode *dn)
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fgcolor(info.st_mode));
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}
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#endif
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column += printf("%s", lpath) + 4;
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column += print_name(lpath) + 4;
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if (show_color) {
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printf("\033[0m");
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}
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@ -736,84 +852,6 @@ static int list_single(const struct dnode *dn)
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}
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/* "[-]Cadil1", POSIX mandated options, busybox always supports */
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/* "[-]gnsx", POSIX non-mandated options, busybox always supports */
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/* "[-]Ak" GNU options, busybox always supports */
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/* "[-]FLRctur", POSIX mandated options, busybox optionally supports */
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/* "[-]p", POSIX non-mandated options, busybox optionally supports */
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/* "[-]SXvThw", GNU options, busybox optionally supports */
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/* "[-]K", SELinux mandated options, busybox optionally supports */
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/* "[-]e", I think we made this one up */
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static const char ls_options[] ALIGN1 =
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"Cadil1gnsxAk"
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USE_FEATURE_LS_TIMESTAMPS("cetu")
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USE_FEATURE_LS_SORTFILES("SXrv")
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USE_FEATURE_LS_FILETYPES("Fp")
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USE_FEATURE_LS_FOLLOWLINKS("L")
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USE_FEATURE_LS_RECURSIVE("R")
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USE_FEATURE_HUMAN_READABLE("h")
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USE_SELINUX("K")
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USE_FEATURE_AUTOWIDTH("T:w:")
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USE_SELINUX("Z");
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enum {
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LIST_MASK_TRIGGER = 0,
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STYLE_MASK_TRIGGER = STYLE_MASK,
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DISP_MASK_TRIGGER = DISP_ROWS,
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SORT_MASK_TRIGGER = SORT_MASK,
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};
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static const unsigned opt_flags[] = {
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LIST_SHORT | STYLE_COLUMNS, /* C */
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DISP_HIDDEN | DISP_DOT, /* a */
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DISP_NOLIST, /* d */
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LIST_INO, /* i */
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LIST_LONG | STYLE_LONG, /* l - remember LS_DISP_HR in mask! */
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LIST_SHORT | STYLE_SINGLE, /* 1 */
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0, /* g - ingored */
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LIST_ID_NUMERIC, /* n */
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LIST_BLOCKS, /* s */
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DISP_ROWS, /* x */
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DISP_HIDDEN, /* A */
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ENABLE_SELINUX * LIST_CONTEXT, /* k (ignored if !SELINUX) */
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#if ENABLE_FEATURE_LS_TIMESTAMPS
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TIME_CHANGE | (ENABLE_FEATURE_LS_SORTFILES * SORT_CTIME), /* c */
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LIST_FULLTIME, /* e */
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ENABLE_FEATURE_LS_SORTFILES * SORT_MTIME, /* t */
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TIME_ACCESS | (ENABLE_FEATURE_LS_SORTFILES * SORT_ATIME), /* u */
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#endif
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#if ENABLE_FEATURE_LS_SORTFILES
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SORT_SIZE, /* S */
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SORT_EXT, /* X */
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SORT_REVERSE, /* r */
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SORT_VERSION, /* v */
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#endif
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#if ENABLE_FEATURE_LS_FILETYPES
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LIST_FILETYPE | LIST_EXEC, /* F */
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LIST_FILETYPE, /* p */
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#endif
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#if ENABLE_FEATURE_LS_FOLLOWLINKS
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FOLLOW_LINKS, /* L */
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#endif
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#if ENABLE_FEATURE_LS_RECURSIVE
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DISP_RECURSIVE, /* R */
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#endif
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#if ENABLE_FEATURE_HUMAN_READABLE
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LS_DISP_HR, /* h */
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#endif
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#if ENABLE_SELINUX
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LIST_MODEBITS|LIST_NLINKS|LIST_CONTEXT|LIST_SIZE|LIST_DATE_TIME, /* K */
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#endif
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#if ENABLE_FEATURE_AUTOWIDTH
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0, 0, /* T, w - ignored */
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#endif
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#if ENABLE_SELINUX
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LIST_MODEBITS|LIST_ID_NAME|LIST_CONTEXT, /* Z */
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#endif
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(1U<<31)
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};
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/* colored LS support by JaWi, janwillem.janssen@lxtreme.nl */
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#if ENABLE_FEATURE_LS_COLOR
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/* long option entry used only for --color, which has no short option
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