r2util.c

这是一个C程序分析工具

/*====================================================================*/
/*  UNIT   :  @(#)r2util.c	2.5  -  08/04/99 */
/*====================================================================*/
/*  PURPOSE:  General purpose routines.                               */
/*                                                                    */
/*  SYSTEM :  RECON II                                                */
/*                                                                    */
/*  USED BY:  main(), ReadTestData(), BuildCompList(), SelectComp(),  */
/*            and AnnotateSource().                                   */
/*                                                                    */
/*  HISTORY:                                                          */
/*  VER   DATE       AUTHOR        DESCRIPTION                        */
/*  1.00  23 Feb 93  L. Richard    Created unit.                      */
/*  1.01  10 Mar 93  L. Richard    Added SetTalk() and SetDirectory() */
/*  1.02  26 Mar 93  L. Richard    Added Function SplitPath()         */
/*  1.03  22 Jun 93  L. Richard    Altered SetDirectory() and         */
/*                                 SplitPath() to allow for different */
/*                                 operating system path definitions. */
/*        7 Nov 93   N. Wilde      To implement the output sets option*/
/*                                 added GetOutputMode and updated    */
/*                                 Usage() and SetTalk                */
/*        24 Nov 96  E. Martinez   To implement a structure for       */
/*                                 command line arguments             */
/*                                 and remove RECON2 env variable     */
/*        22 Mar 97  L. Landry     Added functions to read new trace  */
/*                   W. Flood      file format and error check the    */
/*                                 trace file date.                   */
/*   2.2  31 Jan 98  W. Hall       Deleted SetDirectory().            */
/*                                 Amended GetOutputMode() and Usage()*/
/*                                 Modified EvalValueType(),          */
/*                                 getSwitchValue(), and SeekOut() to */
/*                                 clean up some compiler warning     */
/*                                 issues.                            */
/*   2.3   9 Mar 99  D. Fralish    Add new 'E' value to EvalValueType */
/*                                 as per Tisk 38                     */
/*--------------------------------------------------------------------*/


/*==[ INTERFACE ]=====================================================*/


#include "r2.h"
#include "r2util.h"
#include <stdio.h>

/* Globals */


int     gTALK;                          /* Display level              */
STRING  gRECON2[MAXDIR];
/*==[ PRIVATE IMPLEMENTATION ]========================================*/


#include <stdio.h>
#include <string.h>
#include <stdlib.h>


/*==[ PUBLIC IMPLEMENTATION ]=========================================*/


/*--------------------------------------------------------------------*/
/*  FUNCTION        AbortMsg                                          */
/*--------------------------------------------------------------------*/
/*  PURPOSE         Display error message and abort.                  */
/*                                                                    */
/*  HISTORY:                                                          */
/*  VER   DATE       AUTHOR        DESCRIPTION                        */
/*  1.00  23 Feb 93  L. Richard    Created function.                  */
/*--------------------------------------------------------------------*/


extern void AbortMsg(
  STRING        *msg
)
{
  if (0 < gTALK)
    printf( "R2Analyz: ABORTING - %s\n", msg );

exit( EXIT_FAILURE );
} /* AbortMsg() */


/*--------------------------------------------------------------------*/
/*  FUNCTION        GetOutputMode                                     */
/*--------------------------------------------------------------------*/
/*  PURPOSE         Checks the -O command line parameter to see if    */
/*                  output is the annotated listing (default) or      */
/*                  the set output report                             */
/*                                                                    */
/*  HISTORY:                                                          */
/*  VER   DATE       AUTHOR        DESCRIPTION                        */
/*       5 Nov 93   N. Wilde       Created function.                  */
/*       24 Nov 96  E. Martinez    Modified for command line arg str  */
/*  2.2  31 Jan 98  W. Hall        Changed the -Os switch -s in       */
/*                                 accordance with changes to the     */
/*                                 command line parameters in         */
/*                                 r2analyz.c                         */
/*--------------------------------------------------------------------*/


extern OUTPUT_MODE GetOutputMode(
  clinput       *CLInput                /* Cmd line arguments    */
)
{
  OUTPUT_MODE   result = ANNOTATED_LISTING;  /* Default */
  if ( 0 == strcmp(CLInput->outmode, "-s"))
      result = SETS;
  return result;
}
/* GetOutputMode */


/*--------------------------------------------------------------------*/
/*  FUNCTION        SplitPath                                         */
/*--------------------------------------------------------------------*/
/*  PURPOSE         Duplicate the Borland functionality of 'fnsplit'  */
/*                  but return only the name portion.                 */
/*                                                                    */
/*  HISTORY:                                                          */
/*  VER   DATE       AUTHOR        DESCRIPTION                        */
/*  1.00  26 Mar 93  L. Richard    Created function.                  */
/*  1.01  22 Jun 93  L. Richard    Added conditionals for Ops System  */
/*--------------------------------------------------------------------*/


extern void SplitPath(
  char  *path,                  /* Path to be parsed          */
  char          *name                   /* Name portion of path       */
)
{
  char  drv[ MAXDRIVE ];                /* Drive portion of path      */
  char  dir[ MAXDIR   ];                /* Directory portion of path  */
  char  fil[ MAXFILE  ];                /* Name portion of path       */
  char  ext[ MAXEXT   ];                /* Extension portion of path  */
  char  *temp;                          /* Tempory string pointer     */


  drv[0] = '\0';
  dir[0] = '\0';
  fil[0] = '\0';
  ext[0] = '\0';


  /* Extract drive including ':' */
  if (NULL != (temp = strrchr( path, ':' )))
  {
    strncat( drv, path, 2 );
    path = ++temp;
  }


  /* Extract complete directory path including path delimiter */
#ifdef SYS_DOS                                          /* 1.01 [LHR] */
  if (NULL != (temp = strrchr( path, '\\' )))
#endif
#ifdef SYS_UNIX                                         /* 1.01 [LHR] */
  if (NULL != (temp = strrchr( path, '/' )))
#endif
#ifdef SYS_VMS                                          /* 1.01 [LHR] */
  if (NULL != (temp = strrchr( path, ']' )))
#endif
  {
    strncat( dir, path, (++temp - (char *) path) );
    path = temp;
  }


  /* Extract name and extension */
  if (NULL == (temp = strrchr( path, '.' )))
    strcpy( fil, path );
  else
  {
    strncat( fil, path, (temp - (char *) path) );
    strcpy( ext, temp );
  }


  /* Copy name portion of path */
  strcpy( name, fil );


} /* SplitPath()*/



/*--------------------------------------------------------------------*/
/*  FUNCTION        SetTalk                                           */
/*--------------------------------------------------------------------*/
/*  PURPOSE         Sets the program global variable gTALK to control */
/*                  the level of message display.                     */
/*                                                                    */
/*  HISTORY:                                                          */
/*  VER   DATE       AUTHOR        DESCRIPTION                        */
/*  1.00  10 Mar 93  L. Richard    Created function.                  */
/*        24 Nov 96  E. Martinez   Allows for command line arg struc */
/*        25 Nov 98  D. Fralish    Use R2_VERS as per Tisk 33         */
/*--------------------------------------------------------------------*/


extern void SetTalk(
  clinput       *CLInput                /* Cmd line arguments     */
)
{
  gTALK = 1;
  if ( 0 == strcmp(CLInput->talk, "-q"))
      gTALK = 0;                        /* Quiet   */
    else if ( 0 == strcmp(CLInput->talk, "-v"))
      gTALK = 2;                        /* Verbose */


  if (0 < gTALK)
    printf( "\n\nR2Analyz: Version %s\n", R2_VERS );


} /* SetTalk() */


/*--------------------------------------------------------------------*/
/*  FUNCTION        SetDirectory                                      */
/*--------------------------------------------------------------------*/
/*  PURPOSE         Reads the command line argument to get the        */
/*                  analysis file and set the gRECON2 variable        */
/*                                                                    */
/*  HISTORY:                                                          */
/*  VER   DATE       AUTHOR        DESCRIPTION                        */
/*  1.00  10 Mar 93  L. Richard    Created function.                  */
/*  1.01  22 Jun 93  L. Richard    Added conditionals for Ops System  */
/*        01 Dec 96  L. Landry     Added the ability to read the      */
/*                                 Command line structure             */
/*  2.2   31 Jan 98  W. Hall       Deleted in tisk 24 because it was  */
/*                                 no longer needed. This header      */
/*                                 remains only for documentation     */
/*                                 purposes. The call to this function*/
/*                                 in r2analyz.c was also deleted.    */
/*--------------------------------------------------------------------*/



/*--------------------------------------------------------------------*/
/*  FUNCTION        Usage                                             */
/*--------------------------------------------------------------------*/
/*  PURPOSE:                                Displays program usage.   */
/*                                                                    */
/*  HISTORY:                                                          */
/*  VER   DATE       AUTHOR        DESCRIPTION                        */
/*  1.00  10 May 93  L. Richard    Created function.		          */
/*        01 Dec 96  L. Landry     Modified to simply print usage.    */