1 files changed, 41 insertions, 27 deletions

diff --git a/findutils/find.c b/findutils/find.c
index 5e8193ffa..ff239dbdd 100644
--- a/findutils/find.c
+++ b/findutils/find.c
@@ -62,9 +62,6 @@
 /* This is a NOEXEC applet. Be very careful! */
 
 
-IF_FEATURE_FIND_XDEV(static dev_t *xdev_dev;)
-IF_FEATURE_FIND_XDEV(static int xdev_count;)
-
 typedef int (*action_fp)(const char *fileName, struct stat *statbuf, void *) FAST_FUNC;
 
 typedef struct {
@@ -100,9 +97,24 @@ IF_FEATURE_FIND_DELETE( ACTS(delete))
 IF_FEATURE_FIND_EXEC(   ACTS(exec,  char **exec_argv; unsigned *subst_count; int exec_argc;))
 IF_FEATURE_FIND_GROUP(  ACTS(group, gid_t gid;))
 
-static action ***actions;
-static bool need_print = 1;
-static int recurse_flags = ACTION_RECURSE;
+struct globals {
+        IF_FEATURE_FIND_XDEV(dev_t *xdev_dev;)
+        IF_FEATURE_FIND_XDEV(int xdev_count;)
+        action ***actions;
+        bool need_print;
+        recurse_flags_t recurse_flags;
+};
+#define G (*(struct globals*)&bb_common_bufsiz1)
+#define INIT_G() do { \
+        struct G_sizecheck { \
+                char G_sizecheck[sizeof(G) > COMMON_BUFSIZE ? -1 : 1]; \
+        }; \
+        IF_FEATURE_FIND_XDEV(G.xdev_dev = NULL;) \
+        IF_FEATURE_FIND_XDEV(G.xdev_count = 0;) \
+        G.actions = NULL; \
+        G.need_print = 1; \
+        G.recurse_flags = ACTION_RECURSE; \
+} while (0)
 
 #if ENABLE_FEATURE_FIND_EXEC
 static unsigned count_subst(const char *str)
@@ -363,7 +375,7 @@ ACTF(context)
         security_context_t con;
         int rc;
 
-        if (recurse_flags & ACTION_FOLLOWLINKS) {
+        if (G.recurse_flags & ACTION_FOLLOWLINKS) {
                 rc = getfilecon(fileName, &con);
         } else {
                 rc = lgetfilecon(fileName, &con);
@@ -392,18 +404,18 @@ static int FAST_FUNC fileAction(const char *fileName,
 #endif
 
 #if ENABLE_FEATURE_FIND_XDEV
-        if (S_ISDIR(statbuf->st_mode) && xdev_count) {
-                for (i = 0; i < xdev_count; i++) {
-                        if (xdev_dev[i] == statbuf->st_dev)
+        if (S_ISDIR(statbuf->st_mode) && G.xdev_count) {
+                for (i = 0; i < G.xdev_count; i++) {
+                        if (G.xdev_dev[i] == statbuf->st_dev)
                                 break;
                 }
-                if (i == xdev_count)
+                if (i == G.xdev_count)
                         return SKIP;
         }
 #endif
-        i = exec_actions(actions, fileName, statbuf);
+        i = exec_actions(G.actions, fileName, statbuf);
         /* Had no explicit -print[0] or -exec? then print */
-        if ((i & TRUE) && need_print)
+        if ((i & TRUE) && G.need_print)
                 puts(fileName);
         /* Cannot return 0: our caller, recursive_action(),
          * will perror() and skip dirs (if called on dir) */
@@ -431,7 +443,7 @@ static int find_type(const char *type)
         else if (*type == 's')
                 mask = S_IFSOCK;
 
-        if (mask == 0 || *(type + 1) != '\0')
+        if (mask == 0 || type[1] != '\0')
                 bb_error_msg_and_die(bb_msg_invalid_arg, type, "-type");
 
         return mask;
@@ -592,21 +604,21 @@ static action*** parse_params(char **argv)
 
         /* --- Tests and actions --- */
                 else if (parm == PARM_print) {
-                        need_print = 0;
+                        G.need_print = 0;
                         /* GNU find ignores '!' here: "find ! -print" */
                         IF_FEATURE_FIND_NOT( invert_flag = 0; )
                         (void) ALLOC_ACTION(print);
                 }
 #if ENABLE_FEATURE_FIND_PRINT0
                 else if (parm == PARM_print0) {
-                        need_print = 0;
+                        G.need_print = 0;
                         IF_FEATURE_FIND_NOT( invert_flag = 0; )
                         (void) ALLOC_ACTION(print0);
                 }
 #endif
 #if ENABLE_FEATURE_FIND_DEPTH
                 else if (parm == PARM_depth) {
-                        recurse_flags |= ACTION_DEPTHFIRST;
+                        G.recurse_flags |= ACTION_DEPTHFIRST;
                 }
 #endif
 #if ENABLE_FEATURE_FIND_PRUNE
@@ -617,8 +629,8 @@ static action*** parse_params(char **argv)
 #endif
 #if ENABLE_FEATURE_FIND_DELETE
                 else if (parm == PARM_delete) {
-                        need_print = 0;
-                        recurse_flags |= ACTION_DEPTHFIRST;
+                        G.need_print = 0;
+                        G.recurse_flags |= ACTION_DEPTHFIRST;
                         (void) ALLOC_ACTION(delete);
                 }
 #endif
@@ -626,7 +638,7 @@ static action*** parse_params(char **argv)
                 else if (parm == PARM_exec) {
                         int i;
                         action_exec *ap;
-                        need_print = 0;
+                        G.need_print = 0;
                         IF_FEATURE_FIND_NOT( invert_flag = 0; )
                         ap = ALLOC_ACTION(exec);
                         ap->exec_argv = ++argv; /* first arg after -exec */
@@ -834,6 +846,8 @@ IF_FEATURE_FIND_MAXDEPTH(OPT_MINDEPTH,)
 #define minmaxdepth NULL
 #endif
 
+        INIT_G();
+
         for (firstopt = 1; firstopt < argc; firstopt++) {
                 if (argv[firstopt][0] == '-')
                         break;
@@ -861,21 +875,21 @@ IF_FEATURE_FIND_MAXDEPTH(OPT_MINDEPTH,)
         while ((arg = argp[0])) {
                 int opt = index_in_strings(options, arg);
                 if (opt == OPT_FOLLOW) {
-                        recurse_flags |= ACTION_FOLLOWLINKS;
+                        G.recurse_flags |= ACTION_FOLLOWLINKS | ACTION_DANGLING_OK;
                         argp[0] = (char*)"-a";
                 }
 #if ENABLE_FEATURE_FIND_XDEV
                 if (opt == OPT_XDEV) {
                         struct stat stbuf;
-                        if (!xdev_count) {
-                                xdev_count = firstopt - 1;
-                                xdev_dev = xmalloc(xdev_count * sizeof(dev_t));
+                        if (!G.xdev_count) {
+                                G.xdev_count = firstopt - 1;
+                                G.xdev_dev = xmalloc(G.xdev_count * sizeof(dev_t));
                                 for (i = 1; i < firstopt; i++) {
                                         /* not xstat(): shouldn't bomb out on
                                          * "find not_exist exist -xdev" */
                                         if (stat(argv[i], &stbuf))
                                                 stbuf.st_dev = -1L;
-                                        xdev_dev[i-1] = stbuf.st_dev;
+                                        G.xdev_dev[i-1] = stbuf.st_dev;
                                 }
                         }
                         argp[0] = (char*)"-a";
@@ -894,11 +908,11 @@ IF_FEATURE_FIND_MAXDEPTH(OPT_MINDEPTH,)
                 argp++;
         }
 
-        actions = parse_params(&argv[firstopt]);
+        G.actions = parse_params(&argv[firstopt]);
 
         for (i = 1; i < firstopt; i++) {
                 if (!recursive_action(argv[i],
-                                recurse_flags,  /* flags */
+                                G.recurse_flags,/* flags */
                                 fileAction,     /* file action */
                                 fileAction,     /* dir action */
 #if ENABLE_FEATURE_FIND_MAXDEPTH