Патч для утилиты find ОС FreeBSD 11.2.0-RELEASE, позволяющий осуществлять поиск файлов по их расширенным атрибутам (extattr). Использование: find . -userattr attrname=attrvalue Подробнее: https://gist.github.com/scifinder/567c971d6a7ffa87c85301e6e3087ed0

patch-find.diff

--- /usr/src/usr.bin/find/extern.h.orig
+++ /usr/src/usr.bin/find/extern.h
@@ -76,6 +76,7 @@
 creat_f	c_sparse;
 creat_f	c_type;
 creat_f	c_user;
+creat_f	c_userattr;
 creat_f	c_xdev;
 
 exec_f	f_Xmin;
@@ -113,6 +114,7 @@
 exec_f	f_sparse;
 exec_f	f_type;
 exec_f	f_user;
+exec_f	f_userattr;
 
 extern int ftsoptions, ignore_readdir_race, isdeprecated, isdepth, isoutput;
 extern int issort, isxargs;
--- /usr/src/usr.bin/find/find.h.orig
+++ /usr/src/usr.bin/find/find.h
@@ -107,6 +107,7 @@
 		char *_a_data[2];		/* array of char pointers */
 		char *_c_data;			/* char pointer */
 		regex_t *_re_data;		/* regex */
+		char *_uattr_data;      /* extattr (user namespace) */
 	} p_un;
 } PLAN;
 #define	a_data	p_un._a_data
@@ -134,6 +135,7 @@
 #define e_pbsize p_un.ex._e_pbsize
 #define e_psizemax p_un.ex._e_psizemax
 #define e_next p_un.ex._e_next
+#define uattr_data p_un._uattr_data
 
 typedef struct _option {
 	const char *name;		/* option name */
--- /usr/src/usr.bin/find/function.c.orig
+++ /usr/src/usr.bin/find/function.c
@@ -46,6 +46,7 @@
 #include <sys/acl.h>
 #include <sys/wait.h>
 #include <sys/mount.h>
+#include <sys/extattr.h>
 
 #include <dirent.h>
 #include <err.h>
@@ -1660,6 +1661,61 @@
 }
 
 /*
+ * -userattr
+ */
+ 
+int
+f_userattr(PLAN *plan, FTSENT *entry)
+{
+	regex_t re;
+	char *rest = NULL;
+	char *attr, *val = NULL;
+	char uattr[strlen(plan->uattr_data) + 1];
+	memset(uattr, '\0', strlen(plan->uattr_data) + 1);
+	strncpy(uattr, plan->uattr_data, strlen(plan->uattr_data));
+	if(strstr(uattr, "=") == NULL) return 0;
+ 
+	attr = strtok_r(uattr, "=", &rest);
+	val = strtok_r(NULL, "=", &rest);
+	
+	int match = 0;
+	char getval[1024] = {0};
+
+	if (S_ISLNK(entry->fts_statp->st_mode)) {
+		ssize_t b = extattr_get_link(entry->fts_accpath, EXTATTR_NAMESPACE_USER, attr, getval, 1024);
+		if(b > 0) {
+			int k = regcomp(&re, val, REG_EXTENDED|REG_ICASE);
+			if(k != 0) errx(1, "Syntax error in the regular expression");
+			int t = regexec(&re, getval, 0, NULL, 0);
+			match = (t == 0) ? 1 : 0;
+		}
+	} else {
+		ssize_t b = extattr_get_file(entry->fts_accpath, EXTATTR_NAMESPACE_USER, attr, getval, 1024);
+		if(b > 0) {
+			int k = regcomp(&re, val, REG_EXTENDED|REG_ICASE);
+			if(k != 0) errx(1, "Syntax error in the regular expression");
+			int t = regexec(&re, getval, 0, NULL, 0);
+			match = (t == 0) ? 1 : 0;
+		}
+	}
+	regfree(&re);
+
+	return match;
+}
+
+PLAN *
+c_userattr(OPTION *option, char ***argvp)
+{
+	char *pattern;
+	PLAN *new;
+	ftsoptions &= ~FTS_NOSTAT;
+	pattern = nextarg(option, argvp);
+	new = palloc(option);
+	new->uattr_data = pattern;
+	return new;
+}
+
+/*
  * -xdev functions --
  *
  *	Always true, causes find not to descend past directories that have a
--- /usr/src/usr.bin/find/option.c.orig
+++ /usr/src/usr.bin/find/option.c
@@ -150,6 +150,7 @@
 	{ "-type",	c_type,		f_type,		0 },
 	{ "-uid",	c_user,		f_user,		0 },
 	{ "-user",	c_user,		f_user,		0 },
+	{ "-userattr",	c_userattr,	f_userattr,	0 },
 	{ "-wholename",	c_name,		f_path,		0 },
 	{ "-xdev",	c_xdev,		f_always_true,	0 },
 // -xtype