This is files/file_perms.h (Listing 15-3, page 296), an example from the book, The Linux Programming Interface.

The source code file is copyright 2022, Michael Kerrisk, and is licensed under the GNU Lesser General Public License, version 3.

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In the listing below, the names of Linux system calls and C library functions are hyperlinked to manual pages from the Linux man-pages project, and the names of functions implemented in the book are hyperlinked to the implementations of those functions.


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/* file_perms.h

   Header file for file_perms.c.
#ifndef FILE_PERMS_H
#define FILE_PERMS_H

#include <sys/types.h>

#define FP_SPECIAL 1            /* Include set-user-ID, set-group-ID, and sticky
                                   bit information in returned string */

char *filePermStr(mode_t perm, int flags);



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