mode_t.c

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// SPDX-License-Identifier: GPL-2.0
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

/* From include/linux/stat.h */
#ifndef S_IRWXUGO
#define S_IRWXUGO   (S_IRWXU|S_IRWXG|S_IRWXO)
#endif
#ifndef S_IALLUGO
#define S_IALLUGO   (S_ISUID|S_ISGID|S_ISVTX|S_IRWXUGO)
#endif
#ifndef S_IRUGO
#define S_IRUGO         (S_IRUSR|S_IRGRP|S_IROTH)
#endif
#ifndef S_IWUGO
#define S_IWUGO         (S_IWUSR|S_IWGRP|S_IWOTH)
#endif
#ifndef S_IXUGO
#define S_IXUGO         (S_IXUSR|S_IXGRP|S_IXOTH)
#endif

static size_t syscall_arg__scnprintf_mode_t(char *bf, size_t size, struct syscall_arg *arg)
{
    int printed = 0, mode = arg->val;

#define P_MODE(n) \
    if ((mode & S_##n) == S_##n) { \
        printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
        mode &= ~S_##n; \
    }

    P_MODE(IALLUGO);
    P_MODE(IRWXUGO);
    P_MODE(IRUGO);
    P_MODE(IWUGO);
    P_MODE(IXUGO);
    P_MODE(IFMT);
    P_MODE(IFSOCK);
    P_MODE(IFLNK);
    P_MODE(IFREG);
    P_MODE(IFBLK);
    P_MODE(IFDIR);
    P_MODE(IFCHR);
    P_MODE(IFIFO);
    P_MODE(ISUID);
    P_MODE(ISGID);
    P_MODE(ISVTX);
    P_MODE(IRWXU);
    P_MODE(IRUSR);
    P_MODE(IWUSR);
    P_MODE(IXUSR);
    P_MODE(IRWXG);
    P_MODE(IRGRP);
    P_MODE(IWGRP);
    P_MODE(IXGRP);
    P_MODE(IRWXO);
    P_MODE(IROTH);
    P_MODE(IWOTH);
    P_MODE(IXOTH);
#undef P_MODE

    if (mode)
        printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", mode);

    return printed;
}

#define SCA_MODE_T syscall_arg__scnprintf_mode_t