Move start_stop_daemon to debianutils.

[oweals/busybox.git] / coreutils / ls.c

diff --git a/coreutils/ls.c b/coreutils/ls.c
index 4a4956611d2d03e969e11f8affa74350aa0abbb5..a7f036b61c0b8520d1211f5c94cb377987de8f13 100644 (file)
--- a/coreutils/ls.c
+++ b/coreutils/ls.c
@@ -62,6 +62,11 @@ enum {
 #include <termios.h>
 #include <sys/ioctl.h>
 #include "busybox.h"
+#ifdef CONFIG_SELINUX
+#include <fs_secure.h>
+#include <flask_util.h>
+#include <ss.h>
+#endif
 
 #ifdef CONFIG_FEATURE_LS_TIMESTAMPS
 #include <time.h>
@@ -89,14 +94,15 @@ enum {
 #define LIST_NLINKS            (1U<<3)
 #define LIST_ID_NAME   (1U<<4)
 #define LIST_ID_NUMERIC        (1U<<5)
-#define LIST_SIZE              (1U<<6)
-#define LIST_DEV               (1U<<7)
-#define LIST_DATE_TIME (1U<<8)
-#define LIST_FULLTIME  (1U<<9)
-#define LIST_FILENAME  (1U<<10)
-#define LIST_SYMLINK   (1U<<11)
-#define LIST_FILETYPE  (1U<<12)
-#define LIST_EXEC              (1U<<13)
+#define LIST_CONTEXT   (1U<<6)
+#define LIST_SIZE              (1U<<7)
+#define LIST_DEV               (1U<<8)
+#define LIST_DATE_TIME (1U<<9)
+#define LIST_FULLTIME  (1U<<10)
+#define LIST_FILENAME  (1U<<11)
+#define LIST_SYMLINK   (1U<<12)
+#define LIST_FILETYPE  (1U<<13)
+#define LIST_EXEC      (1U<<14)
 
 #define LIST_MASK       ((LIST_EXEC << 1) - 1)
 
@@ -179,6 +185,9 @@ struct dnode {                      /* the basic node */
        char *name;                     /* the dir entry name */
        char *fullname;         /* the dir entry name */
        struct stat dstat;      /* the file stat info */
+#ifdef CONFIG_SELINUX
+       security_id_t sid;
+#endif
        struct dnode *next;     /* point at the next node */
 };
 typedef struct dnode dnode_t;
@@ -189,6 +198,10 @@ static int list_single(struct dnode *);
 
 static unsigned int all_fmt;
 
+#ifdef CONFIG_SELINUX
+static int is_flask_enabled_flag;
+#endif
+
 #ifdef CONFIG_FEATURE_AUTOWIDTH
 static unsigned short terminal_width = TERMINAL_WIDTH;
 static unsigned short tabstops = COLUMN_GAP;
@@ -203,26 +216,49 @@ static struct dnode *my_stat(char *fullname, char *name)
 {
        struct stat dstat;
        struct dnode *cur;
+#ifdef CONFIG_SELINUX
+       security_id_t sid;
+#endif
+       int rc;
 
 #ifdef CONFIG_FEATURE_LS_FOLLOWLINKS
        if (all_fmt & FOLLOW_LINKS) {
-               if (stat(fullname, &dstat)) {
+#ifdef CONFIG_SELINUX
+               if(is_flask_enabled_flag)
+                       rc = stat_secure(fullname, &dstat, &sid);
+               else
+#endif
+                       rc = stat(fullname, &dstat);
+               if(rc)
+               {
                        bb_perror_msg("%s", fullname);
                        status = EXIT_FAILURE;
                        return 0;
                }
        } else
 #endif
-       if (lstat(fullname, &dstat)) {
-               bb_perror_msg("%s", fullname);
-               status = EXIT_FAILURE;
-       return 0;
+       {
+#ifdef CONFIG_SELINUX
+               if(is_flask_enabled_flag)
+                       rc = lstat_secure(fullname, &dstat, &sid);
+               else
+#endif
+                       rc = lstat(fullname, &dstat);
+               if(rc)
+               {
+                       bb_perror_msg("%s", fullname);
+                       status = EXIT_FAILURE;
+                       return 0;
+               }
        }
 
        cur = (struct dnode *) xmalloc(sizeof(struct dnode));
        cur->fullname = fullname;
        cur->name = name;
        cur->dstat = dstat;
+#ifdef CONFIG_SELINUX
+       cur->sid = sid;
+#endif
        return cur;
 }
 
@@ -451,6 +487,9 @@ static void showfiles(struct dnode **dn, int nfiles)
                /* find the longest file name-  use that as the column width */
                for (i = 0; i < nfiles; i++) {
                        int len = strlen(dn[i]->name) +
+#ifdef CONFIG_SELINUX
+                       ((all_fmt & LIST_CONTEXT) ? 33 : 0) +
+#endif
                        ((all_fmt & LIST_INO) ? 8 : 0) +
                        ((all_fmt & LIST_BLOCKS) ? 5 : 0);
                        if (column_width < len)
@@ -694,6 +733,21 @@ static int list_single(struct dnode *dn)
                        }
                        column += 13;
                        break;
+#endif
+#ifdef CONFIG_SELINUX
+               case LIST_CONTEXT:
+                       {
+                               char context[64];
+                               int len = sizeof(context);
+                               if(security_sid_to_context(dn->sid, context, &len))
+                               {
+                                       strcpy(context, "unknown");
+                                       len = 7;
+                               }
+                               printf("%-32s ", context);
+                               column += MAX(33, len);
+                       }
+                       break;
 #endif
                case LIST_FILENAME:
 #ifdef CONFIG_FEATURE_LS_COLOR
@@ -774,6 +828,9 @@ static const char ls_opts[] = "1AaCdgilnsx"
                                                 "h"
 #endif
                                                 "k"
+#ifdef CONFIG_SELINUX
+                                               "K"
+#endif
 #ifdef CONFIG_FEATURE_AUTOWIDTH
                                                 "T:w:"
 #endif
@@ -834,7 +891,12 @@ static const unsigned opt_flags[] = {
 #ifdef CONFIG_FEATURE_HUMAN_READABLE
 LS_DISP_HR,                                            /* h */
 #endif
+#ifndef CONFIG_SELINUX
        0,                                                      /* k - ingored */
+#else
+       LIST_CONTEXT,                           /* k */
+       LIST_MODEBITS|LIST_NLINKS|LIST_CONTEXT|LIST_SIZE|LIST_DATE_TIME, /* K */
+#endif
 };
 
 
@@ -849,6 +911,9 @@ extern int ls_main(int argc, char **argv)
        int opt;
        int oi, ac;
        char **av;
+#ifdef CONFIG_SELINUX
+       is_flask_enabled_flag = is_flask_enabled();
+#endif
 
 #ifdef CONFIG_FEATURE_AUTOWIDTH
        struct winsize win = { 0, 0, 0, 0 };
@@ -902,15 +967,22 @@ extern int ls_main(int argc, char **argv)
                        if (flags & STYLE_MASK_TRIGGER) {
                                all_fmt &= ~STYLE_MASK;
                        }
+#ifdef CONFIG_FEATURE_LS_SORTFILES
                        if (flags & SORT_MASK_TRIGGER) {
                                all_fmt &= ~SORT_MASK;
                        }
+#endif
                        if (flags & DISP_MASK_TRIGGER) {
                                all_fmt &= ~DISP_MASK;
                        }
+#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
                        if (flags & TIME_MASK_TRIGGER) {
                                all_fmt &= ~TIME_MASK;
                        }
+#endif
+                       if (flags & LIST_CONTEXT) {
+                               all_fmt |= STYLE_SINGLE;
+                       }
 #ifdef CONFIG_FEATURE_HUMAN_READABLE
                        if (opt == 'l') {
                                all_fmt &= ~LS_DISP_HR;