STAT_FLAGS(3) NetBSD Library Functions Manual STAT_FLAGS(3)
string_to_flags, flags_to_string -- Stat flags parsing and printing func- tions
System Utilities Library (libutil, -lutil)
#include <util.h> char * flags_to_string(u_long flags, const char *def); int string_to_flags(char **stringp, u_long *setp, u_long *clrp);
The flags_to_string() and string_to_flags() functions are used by pro- grams such as ls(1), mtree(8), makefs(8), etc., to parse and/or print the st_flags field in the stat(2) structure. They recognize the following flags: String Flag Description arch SF_ARCHIVED file is archived nodump UF_NODUMP do not dump file opaque UF_OPAQUE directory is opaque in union filesystems sappnd SF_APPEND writes to the file may only append schg SF_IMMUTABLE file cannot be changed; it is immutable snap SF_SNAPSHOT file is a snapshot inode uappnd UF_APPEND writes to the file may only append uchg UF_IMMUTABLE file cannot be changed; it is immutable The SF_APPEND and SF_IMMUTABLE flags are for the superuser only, whereas UF_APPEND and UF_IMMUTABLE are for the user only. The flags_to_string() function converts the bits set in the flags argu- ment to a comma-separated string and returns it. If no flags are set, then the def string is returned. The returned string is allocated via malloc(3) and it is the responsibility of the caller to free(3) it. The string_to_flags() function takes a stringp of space, comma, or tab separated flag names and places their bit value on the setp argument. If the flag name is prefixed by: ``no'', then the bit value is placed on the clrp argument.
flags_to_string() returns the symbolic representation of flags, the default string, or NULL if allocation failed. string_to_flags() returns 0 on success and 1 if it fails to parse the string, setting stringp to point to the first string that it failed to parse.
chflags(2), stat(2) NetBSD 9.0 September 20, 2012 NetBSD 9.0
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