socket_type.c

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

#ifndef SOCK_DCCP
# define SOCK_DCCP      6
#endif

#ifndef SOCK_CLOEXEC
# define SOCK_CLOEXEC       02000000
#endif

#ifndef SOCK_NONBLOCK
# define SOCK_NONBLOCK      00004000
#endif

#ifndef SOCK_TYPE_MASK
#define SOCK_TYPE_MASK 0xf
#endif

static size_t syscall_arg__scnprintf_socket_type(char *bf, size_t size, struct syscall_arg *arg)
{
    size_t printed;
    int type = arg->val,
        flags = type & ~SOCK_TYPE_MASK;

    type &= SOCK_TYPE_MASK;
    /*
     * Can't use a strarray, MIPS may override for ABI reasons.
     */
    switch (type) {
#define P_SK_TYPE(n) case SOCK_##n: printed = scnprintf(bf, size, #n); break;
    P_SK_TYPE(STREAM);
    P_SK_TYPE(DGRAM);
    P_SK_TYPE(RAW);
    P_SK_TYPE(RDM);
    P_SK_TYPE(SEQPACKET);
    P_SK_TYPE(DCCP);
    P_SK_TYPE(PACKET);
#undef P_SK_TYPE
    default:
        printed = scnprintf(bf, size, "%#x", type);
    }

#define P_SK_FLAG(n) \
    if (flags & SOCK_##n) { \
        printed += scnprintf(bf + printed, size - printed, "|%s", #n); \
        flags &= ~SOCK_##n; \
    }

    P_SK_FLAG(CLOEXEC);
    P_SK_FLAG(NONBLOCK);
#undef P_SK_FLAG

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

    return printed;
}

#define SCA_SK_TYPE syscall_arg__scnprintf_socket_type