Author: jhb
Date: Sat Mar 18 18:21:41 2017
New Revision: 315500
URL: https://svnweb.freebsd.org/changeset/base/315500

Log:
  Decode file flags passed to *chflags*().
  
  While here, decode arguments passed to fchflags() and chflagsat().

Modified:
  head/usr.bin/truss/syscall.h
  head/usr.bin/truss/syscalls.c

Modified: head/usr.bin/truss/syscall.h
==============================================================================
--- head/usr.bin/truss/syscall.h        Sat Mar 18 18:19:31 2017        
(r315499)
+++ head/usr.bin/truss/syscall.h        Sat Mar 18 18:21:41 2017        
(r315500)
@@ -45,7 +45,7 @@ enum Argtype { None = 1, Hex, Octal, Int
        Pathconf, Rforkflags, ExitStatus, Waitoptions, Idtype, Procctl,
        LinuxSockArgs, Umtxop, Atfd, Atflags, Timespec2, Accessmode, Long,
        Sysarch, ExecArgs, ExecEnv, PipeFds, QuadHex, Utrace, IntArray, Pipe2,
-       CapFcntlRights, Fadvice,
+       CapFcntlRights, Fadvice, FileFlags,
 
        CloudABIAdvice, CloudABIClockID, ClouduABIFDSFlags,
        CloudABIFDStat, CloudABIFileStat, CloudABIFileType,

Modified: head/usr.bin/truss/syscalls.c
==============================================================================
--- head/usr.bin/truss/syscalls.c       Sat Mar 18 18:19:31 2017        
(r315499)
+++ head/usr.bin/truss/syscalls.c       Sat Mar 18 18:21:41 2017        
(r315500)
@@ -99,7 +99,10 @@ static struct syscall decoded_syscalls[]
        { .name = "chdir", .ret_type = 1, .nargs = 1,
          .args = { { Name, 0 } } },
        { .name = "chflags", .ret_type = 1, .nargs = 2,
-         .args = { { Name | IN, 0 }, { Hex, 1 } } },
+         .args = { { Name | IN, 0 }, { FileFlags, 1 } } },
+       { .name = "chflagsat", .ret_type = 1, .nargs = 4,
+         .args = { { Atfd, 0 }, { Name | IN, 1 }, { FileFlags, 2 },
+                   { Atflags, 3 } } },
        { .name = "chmod", .ret_type = 1, .nargs = 2,
          .args = { { Name, 0 }, { Octal, 1 } } },
        { .name = "chown", .ret_type = 1, .nargs = 3,
@@ -125,6 +128,8 @@ static struct syscall decoded_syscalls[]
        { .name = "faccessat", .ret_type = 1, .nargs = 4,
          .args = { { Atfd, 0 }, { Name | IN, 1 }, { Accessmode, 2 },
                    { Atflags, 3 } } },
+       { .name = "fchflags", .ret_type = 1, .nargs = 2,
+         .args = { { Int, 0 }, { FileFlags, 1 } } },
        { .name = "fchmod", .ret_type = 1, .nargs = 2,
          .args = { { Int, 0 }, { Octal, 1 } } },
        { .name = "fchmodat", .ret_type = 1, .nargs = 4,
@@ -189,7 +194,7 @@ static struct syscall decoded_syscalls[]
        { .name = "kse_release", .ret_type = 0, .nargs = 1,
          .args = { { Timespec, 0 } } },
        { .name = "lchflags", .ret_type = 1, .nargs = 2,
-         .args = { { Name | IN, 0 }, { Hex, 1 } } },
+         .args = { { Name | IN, 0 }, { FileFlags, 1 } } },
        { .name = "lchmod", .ret_type = 1, .nargs = 2,
          .args = { { Name, 0 }, { Octal, 1 } } },
        { .name = "lchown", .ret_type = 1, .nargs = 3,
@@ -1868,6 +1873,15 @@ print_arg(struct syscall_args *sc, unsig
        case Fadvice:
                print_integer_arg(sysdecode_fadvice, fp, args[sc->offset]);
                break;
+       case FileFlags: {
+               fflags_t rem;
+
+               if (!sysdecode_fileflags(fp, args[sc->offset], &rem))
+                       fprintf(fp, "0x%x", rem);
+               else if (rem != 0)
+                       fprintf(fp, "|0x%x", rem);
+               break;
+       }
 
        case CloudABIAdvice:
                fputs(xlookup(cloudabi_advice, args[sc->offset]), fp);
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