recdump.c

[詳解]

/*++
/* NAME
/*  recdump 1
/* SUMMARY
/*  convert record stream to printable form
/* SYNOPSIS
/*  recdump
/* DESCRIPTION
/*  recdump reads a record stream from standard input and
/*  writes the content to standard output in printable form.
/* DIAGNOSTICS
/*  Problems are reported to the standard error stream.
/* LICENSE
/* .ad
/* .fi
/*  The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/*  Wietse Venema
/*  IBM T.J. Watson Research
/*  P.O. Box 704
/*  Yorktown Heights, NY 10598, USA
/*--*/

/* System library. */

#include <sys_defs.h>
#include <stdlib.h>

/* Utility library. */

#include <msg_vstream.h>

/* Global library. */

#include <record.h>
#include <rec_streamlf.h>
#include <rec_type.h>

int     main(int unused_argc, char **argv)
{
    VSTRING *buf = vstring_alloc(100);
    long    offset;
    int     type;

    msg_vstream_init(argv[0], VSTREAM_OUT);

    while (offset = vstream_ftell(VSTREAM_IN),
       ((type = rec_get(VSTREAM_IN, buf, 0)) != REC_TYPE_EOF
       && type != REC_TYPE_ERROR)) {
    vstream_fprintf(VSTREAM_OUT, "%15s|%4ld|%3ld|%s\n",
            rec_type_name(type), offset,
            (long) VSTRING_LEN(buf), vstring_str(buf));
    }
    vstream_fflush(VSTREAM_OUT);
    vstring_free(buf);
    exit(0);
}