// SPDX-License-Identifier: LGPL-2.1
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

#ifndef O_DIRECT
#define O_DIRECT        00040000
#endif

#ifndef O_DIRECTORY
#define O_DIRECTORY     00200000
#endif

#ifndef O_NOATIME
#define O_NOATIME       01000000
#endif

#ifndef O_TMPFILE
#define O_TMPFILE       020000000
#endif

#undef O_LARGEFILE
#define O_LARGEFILE     00100000

size_t open__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
{
        const char *prefix = "O_";
        int printed = 0;

        if ((flags & O_ACCMODE) == O_RDONLY)
                printed = scnprintf(bf, size, "%s%s", show_prefix ? prefix : "", "RDONLY");
        if (flags == 0)
                return printed;
#define P_FLAG(n) \
        if (flags & O_##n) { \
                printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
                flags &= ~O_##n; \
        }

        P_FLAG(RDWR);
        P_FLAG(APPEND);
        P_FLAG(ASYNC);
        P_FLAG(CLOEXEC);
        P_FLAG(CREAT);
        P_FLAG(DIRECT);
        P_FLAG(DIRECTORY);
        P_FLAG(EXCL);
        P_FLAG(LARGEFILE);
        P_FLAG(NOFOLLOW);
        P_FLAG(TMPFILE);
        P_FLAG(NOATIME);
        P_FLAG(NOCTTY);
#ifdef O_NONBLOCK
        P_FLAG(NONBLOCK);
#elif O_NDELAY
        P_FLAG(NDELAY);
#endif
#ifdef O_PATH
        P_FLAG(PATH);
#endif
#ifdef O_DSYNC
        if ((flags & O_SYNC) == O_SYNC)
                printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", "SYNC");
        else {
                P_FLAG(DSYNC);
        }
#else
        P_FLAG(SYNC);
#endif
        P_FLAG(TRUNC);
        P_FLAG(WRONLY);
#undef P_FLAG

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

        return printed;
}

size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, struct syscall_arg *arg)
{
        int flags = arg->val;

        if (!(flags & O_CREAT))
                arg->mask |= 1 << (arg->idx + 1); /* Mask the mode parm */

        return open__scnprintf_flags(flags, bf, size, arg->show_string_prefix);
}