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@@ -203,6 +203,14 @@
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//config: WARNING: This option can do much harm if used wrong. Busybox will not
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//config: try to protect the user from doing stupid things. Use with care.
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//config:
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+//config:config FEATURE_FIND_EMPTY
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+//config: bool "Enable -empty: match empty files or directories"
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+//config: default y
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+//config: depends on FIND
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+//config: help
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+//config: Support the 'find -empty' option to find empty regular files
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+//config: or directories.
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+//config:
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//config:config FEATURE_FIND_PATH
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//config: bool "Enable -path: match pathname with shell pattern"
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//config: default y
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@@ -315,6 +323,9 @@
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//usage: IF_FEATURE_FIND_CONTEXT(
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//usage: "\n -context CTX File has specified security context"
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//usage: )
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+//usage: IF_FEATURE_FIND_EMPTY(
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+//usage: "\n -empty Match empty file/directory"
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+//usage: )
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//usage: IF_FEATURE_FIND_PRUNE(
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//usage: "\n -prune If current file is directory, don't descend into it"
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//usage: )
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@@ -396,6 +407,7 @@ IF_FEATURE_FIND_PAREN( ACTS(paren, action ***subexpr;))
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IF_FEATURE_FIND_PRUNE( ACTS(prune))
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IF_FEATURE_FIND_QUIT( ACTS(quit))
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IF_FEATURE_FIND_DELETE( ACTS(delete))
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+IF_FEATURE_FIND_EMPTY( ACTS(empty))
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IF_FEATURE_FIND_EXEC( ACTS(exec,
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char **exec_argv; /* -exec ARGS */
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unsigned *subst_count;
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@@ -824,6 +836,30 @@ ACTF(delete)
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return TRUE;
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}
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#endif
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+#if ENABLE_FEATURE_FIND_EMPTY
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+ACTF(empty)
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+{
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+ if (S_ISDIR(statbuf->st_mode)) {
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+ DIR *dir;
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+ struct dirent *dent;
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+
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+ dir = opendir(fileName);
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+ if (!dir) {
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+ bb_simple_perror_msg(fileName);
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+ return FALSE;
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+ }
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+
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+ while ((dent = readdir(dir)) != NULL
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+ && DOT_OR_DOTDOT(dent->d_name)
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+ ) {
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+ continue;
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+ }
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+ closedir(dir);
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+ return dent == NULL;
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+ }
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+ return S_ISREG(statbuf->st_mode) && statbuf->st_size == 0;
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+}
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+#endif
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#if ENABLE_FEATURE_FIND_CONTEXT
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ACTF(context)
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{
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@@ -989,6 +1025,7 @@ static action*** parse_params(char **argv)
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IF_FEATURE_FIND_PRUNE( PARM_prune ,)
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IF_FEATURE_FIND_QUIT( PARM_quit ,)
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IF_FEATURE_FIND_DELETE( PARM_delete ,)
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+ IF_FEATURE_FIND_EMPTY( PARM_empty ,)
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IF_FEATURE_FIND_EXEC( PARM_exec ,)
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IF_FEATURE_FIND_EXECUTABLE(PARM_executable,)
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IF_FEATURE_FIND_PAREN( PARM_char_brace,)
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@@ -1034,6 +1071,7 @@ static action*** parse_params(char **argv)
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IF_FEATURE_FIND_PRUNE( "-prune\0" )
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IF_FEATURE_FIND_QUIT( "-quit\0" )
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IF_FEATURE_FIND_DELETE( "-delete\0" )
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+ IF_FEATURE_FIND_EMPTY( "-empty\0" )
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IF_FEATURE_FIND_EXEC( "-exec\0" )
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IF_FEATURE_FIND_EXECUTABLE("-executable\0")
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IF_FEATURE_FIND_PAREN( "(\0" )
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@@ -1203,6 +1241,12 @@ static action*** parse_params(char **argv)
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(void) ALLOC_ACTION(delete);
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}
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#endif
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+#if ENABLE_FEATURE_FIND_EMPTY
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+ else if (parm == PARM_empty) {
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+ dbg("%d", __LINE__);
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+ (void) ALLOC_ACTION(empty);
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+ }
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+#endif
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#if ENABLE_FEATURE_FIND_EXEC
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else if (parm == PARM_exec) {
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int i;
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