ls: fix bits for -T, -w and --color; make -n imply -l; fix comments

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/coreutils/ls.c b/coreutils/ls.c
index 2242fbaac055908a8c2377808993c6878b6430d4..8d25b5d5fe5c7ad8797c6fe03ad4ebb032b43305 100644 (file)
--- a/coreutils/ls.c
+++ b/coreutils/ls.c
@@ -159,7 +159,7 @@ STYLE_MASK      = STYLE_SINGLE,
 
 /* which of the three times will be used */
 TIME_CHANGE     = (1 << 21) * ENABLE_FEATURE_LS_TIMESTAMPS,
-TIME_ACCESS     = (1 << 22) * ENABLE_FEATURE_LS_TIMESTAMPS,
+TIME_ACCESS     = (2 << 21) * ENABLE_FEATURE_LS_TIMESTAMPS,
 TIME_MASK       = (3 << 21) * ENABLE_FEATURE_LS_TIMESTAMPS,
 
 /* how will the files be sorted (CONFIG_FEATURE_LS_SORTFILES) */
@@ -189,10 +189,9 @@ LIST_LONG       = LIST_MODEBITS | LIST_NLINKS | LIST_ID_NAME | LIST_SIZE | \
 /*          Not fully compatible - we show not only '/' but other chars too */
 /* -SXvhTw  GNU options, busybox optionally supports */
 /*          -T TABWIDTH is ignored (we don't use tabs on output) */
-/* -K       SELinux mandated options, busybox optionally supports */
+/* -KZ      SELinux mandated options, busybox optionally supports */
+/*          (coreutils 8.4 has no -K, remove it?) */
 /* -e       I think we made this one up (looks similar to GNU --full-time) */
-/* Std opts we do not support: */
-/* -H       Follow the links on command line only */
 static const char ls_options[] ALIGN1 =
        "Cadil1gnsxQAk"      /* 13 opts, total 13 */
        IF_FEATURE_LS_TIMESTAMPS("cetu") /* 4, 17 */
@@ -235,7 +234,7 @@ enum {
        OPTBIT_L = OPTBIT_K + 2 * ENABLE_SELINUX,
        OPTBIT_H, /* 27 */
        OPTBIT_h = OPTBIT_L + 2 * ENABLE_FEATURE_LS_FOLLOWLINKS,
-       OPTBIT_T = OPTBIT_h + 2 * ENABLE_FEATURE_HUMAN_READABLE,
+       OPTBIT_T = OPTBIT_h + 1 * ENABLE_FEATURE_HUMAN_READABLE,
        OPTBIT_w, /* 30 */
        OPTBIT_color = OPTBIT_T + 2 * ENABLE_FEATURE_AUTOWIDTH,
 
@@ -269,12 +268,12 @@ static const uint32_t opt_flags[] = {
        LIST_LONG | STYLE_LONG,      /* l */
        STYLE_SINGLE,                /* 1 */
        0,                           /* g (don't show owner) - handled via OPT_g */
-       LIST_ID_NUMERIC,             /* n */
+       LIST_ID_NUMERIC | LIST_LONG | STYLE_LONG, /* n (assumes l) */
        LIST_BLOCKS,                 /* s */
        DISP_ROWS | STYLE_COLUMNAR,  /* x */
        0,                           /* Q (quote filename) - handled via OPT_Q */
        DISP_HIDDEN,                 /* A */
-       ENABLE_SELINUX * LIST_CONTEXT, /* k (ignored if !SELINUX) */
+       ENABLE_SELINUX * (LIST_CONTEXT|STYLE_SINGLE), /* k (ignored if !SELINUX) */
 #if ENABLE_FEATURE_LS_TIMESTAMPS
        TIME_CHANGE | (ENABLE_FEATURE_LS_SORTFILES * SORT_CTIME), /* c */
        LIST_FULLTIME,               /* e */
@@ -295,8 +294,8 @@ static const uint32_t opt_flags[] = {
        DISP_RECURSIVE,              /* R */
 #endif
 #if ENABLE_SELINUX
-       LIST_MODEBITS|LIST_NLINKS|LIST_CONTEXT|LIST_SIZE|LIST_DATE_TIME, /* K */
-       LIST_MODEBITS|LIST_ID_NAME|LIST_CONTEXT, /* Z */
+       LIST_MODEBITS|LIST_NLINKS|LIST_CONTEXT|LIST_SIZE|LIST_DATE_TIME|STYLE_SINGLE, /* K */
+       LIST_MODEBITS|LIST_ID_NAME|LIST_CONTEXT|STYLE_SINGLE, /* Z */
 #endif
        (1U << 31)
        /* options after Z are not processed through opt_flags */
@@ -688,8 +687,16 @@ static NOINLINE unsigned list_single(const struct dnode *dn)
                column += printf("%-10s ", (char *) bb_mode_string(dn->dstat.st_mode));
        if (all_fmt & LIST_NLINKS)
                column += printf("%4lu ", (long) dn->dstat.st_nlink);
+       if (all_fmt & LIST_ID_NUMERIC) {
+               if (option_mask32 & OPT_g)
+                       column += printf("%-8u ", (int) dn->dstat.st_gid);
+               else
+                       column += printf("%-8u %-8u ",
+                                       (int) dn->dstat.st_uid,
+                                       (int) dn->dstat.st_gid);
+       }
 #if ENABLE_FEATURE_LS_USERNAME
-       if (all_fmt & LIST_ID_NAME) {
+       else if (all_fmt & LIST_ID_NAME) {
                if (option_mask32 & OPT_g) {
                        column += printf("%-8.8s ",
                                get_cached_groupname(dn->dstat.st_gid));
@@ -700,14 +707,6 @@ static NOINLINE unsigned list_single(const struct dnode *dn)
                }
        }
 #endif
-       if (all_fmt & LIST_ID_NUMERIC) {
-               if (option_mask32 & OPT_g)
-                       column += printf("%-8u ", (int) dn->dstat.st_gid);
-               else
-                       column += printf("%-8u %-8u ",
-                                       (int) dn->dstat.st_uid,
-                                       (int) dn->dstat.st_gid);
-       }
        if (all_fmt & LIST_SIZE) {
                if (S_ISBLK(dn->dstat.st_mode) || S_ISCHR(dn->dstat.st_mode)) {
                        column += printf("%4u, %3u ",
@@ -1040,7 +1039,8 @@ int ls_main(int argc UNUSED_PARAM, char **argv)
 
        init_unicode();
 
-       all_fmt = ENABLE_FEATURE_LS_SORTFILES * SORT_NAME;
+       if (ENABLE_FEATURE_LS_SORTFILES)
+               all_fmt = SORT_NAME;
 
 #if ENABLE_FEATURE_AUTOWIDTH
        /* obtain the terminal width */
@@ -1081,8 +1081,6 @@ int ls_main(int argc UNUSED_PARAM, char **argv)
                        if (flags & TIME_MASK)
                                all_fmt &= ~TIME_MASK;
 
-                       if (flags & LIST_CONTEXT)
-                               all_fmt |= STYLE_SINGLE;
                        all_fmt |= flags;
                }
        }
@@ -1121,11 +1119,8 @@ int ls_main(int argc UNUSED_PARAM, char **argv)
                if (all_fmt & TIME_ACCESS)
                        all_fmt = (all_fmt & ~SORT_MASK) | SORT_ATIME;
        }
-       if ((all_fmt & STYLE_MASK) != STYLE_LONG) /* only for long list */
+       if ((all_fmt & STYLE_MASK) != STYLE_LONG) /* not -l? */
                all_fmt &= ~(LIST_ID_NUMERIC|LIST_ID_NAME|LIST_FULLTIME);
-       if (ENABLE_FEATURE_LS_USERNAME)
-               if ((all_fmt & STYLE_MASK) == STYLE_LONG && (all_fmt & LIST_ID_NUMERIC))
-                       all_fmt &= ~LIST_ID_NAME; /* don't list names if numeric uid */
 
        /* choose a display format if one was not already specified by an option */
        if (!(all_fmt & STYLE_MASK))