trace/beauty/msg_flags.c

0001 // SPDX-License-Identifier: LGPL-2.1
0002 #include <sys/types.h>
0003 #include <sys/socket.h>
0004
0005 #ifndef MSG_PROBE
0006 #define MSG_PROBE            0x10
0007 #endif
0008 #ifndef MSG_WAITFORONE
0009 #define MSG_WAITFORONE         0x10000
0010 #endif
0011 #ifndef MSG_SENDPAGE_NOTLAST
0012 #define MSG_SENDPAGE_NOTLAST       0x20000
0013 #endif
0014 #ifndef MSG_FASTOPEN
0015 #define MSG_FASTOPEN        0x20000000
0016 #endif
0017 #ifndef MSG_CMSG_CLOEXEC
0018 # define MSG_CMSG_CLOEXEC   0x40000000
0019 #endif
0020
0021 static size_t syscall_arg__scnprintf_msg_flags(char *bf, size_t size,
0022                            struct syscall_arg *arg)
0023 {
0024     bool show_prefix = arg->show_string_prefix;
0025     const char *prefix = "MSG_";
0026     int printed = 0, flags = arg->val;
0027
0028     if (flags == 0)
0029         return scnprintf(bf, size, "NONE");
0030 #define P_MSG_FLAG(n) \
0031     if (flags & MSG_##n) { \
0032         printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prefix : "", #n); \
0033         flags &= ~MSG_##n; \
0034     }
0035
0036     P_MSG_FLAG(OOB);
0037     P_MSG_FLAG(PEEK);
0038     P_MSG_FLAG(DONTROUTE);
0039     P_MSG_FLAG(CTRUNC);
0040     P_MSG_FLAG(PROBE);
0041     P_MSG_FLAG(TRUNC);
0042     P_MSG_FLAG(DONTWAIT);
0043     P_MSG_FLAG(EOR);
0044     P_MSG_FLAG(WAITALL);
0045     P_MSG_FLAG(FIN);
0046     P_MSG_FLAG(SYN);
0047     P_MSG_FLAG(CONFIRM);
0048     P_MSG_FLAG(RST);
0049     P_MSG_FLAG(ERRQUEUE);
0050     P_MSG_FLAG(NOSIGNAL);
0051     P_MSG_FLAG(MORE);
0052     P_MSG_FLAG(WAITFORONE);
0053     P_MSG_FLAG(SENDPAGE_NOTLAST);
0054     P_MSG_FLAG(FASTOPEN);
0055     P_MSG_FLAG(CMSG_CLOEXEC);
0056 #undef P_MSG_FLAG
0057
0058     if (flags)
0059         printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
0060
0061     return printed;
0062 }
0063
0064 #define SCA_MSG_FLAGS syscall_arg__scnprintf_msg_flags