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- /******************************************************************************
- * *
- * N O T I C E *
- * *
- * Copyright Abandoned, 1987, Fred Fish *
- * *
- * *
- * This previously copyrighted work has been placed into the public *
- * domain by the author and may be freely used for any purpose, *
- * private or commercial. *
- * *
- * Because of the number of inquiries I was receiving about the use *
- * of this product in commercially developed works I have decided to *
- * simply make it public domain to further its unrestricted use. I *
- * specifically would be most happy to see this material become a *
- * part of the standard Unix distributions by AT&T and the Berkeley *
- * Computer Science Research Group, and a standard part of the GNU *
- * system from the Free Software Foundation. *
- * *
- * I would appreciate it, as a courtesy, if this notice is left in *
- * all copies and derivative works. Thank you. *
- * *
- * The author makes no warranty of any kind with respect to this *
- * product and explicitly disclaims any implied warranties of mer- *
- * chantability or fitness for any particular purpose. *
- * *
- ******************************************************************************
- */
-
- /* Small modifications for DICE made by Jonathan Springer, 6 January 1993.
- */
-
- /*
- * FILE
- *
- * dbug.c runtime support routines for dbug package
- *
- * SCCS
- *
- * @(#)dbug.c 1.25 7/25/89
- *
- * DESCRIPTION
- *
- * These are the runtime support routines for the dbug package.
- * The dbug package has two main components; the user include
- * file containing various macro definitions, and the runtime
- * support routines which are called from the macro expansions.
- *
- * Externally visible functions in the runtime support module
- * use the naming convention pattern "_db_xx...xx_", thus
- * they are unlikely to collide with user defined function names.
- *
- * AUTHOR(S)
- *
- * Fred Fish (base code)
- * Enhanced Software Technologies, Tempe, AZ
- * asuvax!mcdphx!estinc!fnf
- *
- * Binayak Banerjee (profiling enhancements)
- * seismo!bpa!sjuvax!bbanerje
- */
-
- #include <stdio.h>
-
- #if NO_VARARGS
- #include "vargs.h" /* Use our "fake" varargs */
- #else
- #include <varargs.h> /* Use system supplied varargs package */
- #endif
-
- #ifdef AMIGA
- #define HZ (50) /* Probably in some header somewhere */
- #endif
-
- #ifdef M_XENIX /* Some xenix compilers predefine this */
- #ifndef xenix
- #define xenix 1
- #endif
- #endif
-
- /*
- * Manifest constants that should not require any changes.
- */
-
- #define FALSE 0 /* Boolean FALSE */
- #define TRUE 1 /* Boolean TRUE */
- #define EOS '\000' /* End Of String marker */
-
- /*
- * Manifest constants which may be "tuned" if desired.
- */
-
- #define PRINTBUF 1024 /* Print buffer size */
- #define INDENT 4 /* Indentation per trace level */
- #define MAXDEPTH 200 /* Maximum trace depth default */
-
- /*
- * The following flags are used to determine which
- * capabilities the user has enabled with the state
- * push macro.
- */
-
- #define TRACE_ON 000001 /* Trace enabled */
- #define DEBUG_ON 000002 /* Debug enabled */
- #define FILE_ON 000004 /* File name print enabled */
- #define LINE_ON 000010 /* Line number print enabled */
- #define DEPTH_ON 000020 /* Function nest level print enabled */
- #define PROCESS_ON 000040 /* Process name print enabled */
- #define NUMBER_ON 000100 /* Number each line of output */
- #define PROFILE_ON 000200 /* Print out profiling code */
- #define PID_ON 000400 /* Identify each line with process id */
-
- #define TRACING (stack -> flags & TRACE_ON)
- #define DEBUGGING (stack -> flags & DEBUG_ON)
- #define PROFILING (stack -> flags & PROFILE_ON)
- #define STREQ(a,b) (strcmp(a,b) == 0)
-
- /*
- * Typedefs to make things more obvious.
- */
-
- #define VOID void /* Can't use typedef for most compilers */
- typedef int BOOLEAN;
-
- /*
- * Make it easy to change storage classes if necessary.
- */
-
- #define LOCAL static /* Names not needed by outside world */
- #define IMPORT extern /* Names defined externally */
- #define EXPORT /* Allocated here, available globally */
- #define AUTO auto /* Names to be allocated on stack */
- #define REGISTER register /* Names to be placed in registers */
-
- /*
- * The default file for profiling. Could also add another flag
- * (G?) which allowed the user to specify this.
- *
- * If the automatic variables get allocated on the stack in
- * reverse order from their declarations, then define AUTOS_REVERSE.
- * This is used by the code that keeps track of stack usage. For
- * forward allocation, the difference in the dbug frame pointers
- * represents stack used by the callee function. For reverse allocation,
- * the difference represents stack used by the caller function.
- *
- */
-
- #define PROF_FILE "dbugmon.out"
- #define PROF_EFMT "E\t%ld\t%s\n"
- #define PROF_SFMT "S\t%lx\t%lx\t%s\n"
- #define PROF_XFMT "X\t%ld\t%s\n"
-
- #if M_I386 /* predefined by xenix 386 compiler */
- #define AUTOS_REVERSE 1
- #endif
-
- /*
- * Variables which are available externally but should only
- * be accessed via the macro package facilities.
- */
-
- EXPORT FILE *_db_fp_ = stderr; /* Output stream, default stderr */
- EXPORT FILE *_db_pfp_ = (FILE *)0; /* Profile stream, 'dbugmon.out' */
- EXPORT char *_db_process_ = "dbug"; /* Pointer to process name; argv[0] */
- EXPORT BOOLEAN _db_on_ = FALSE; /* TRUE if debugging currently on */
- EXPORT BOOLEAN _db_pon_ = FALSE; /* TRUE if debugging currently on */
-
- /*
- * Externally supplied functions.
- */
-
- #if (unix || xenix) /* Only needed for unix */
- IMPORT VOID perror (); /* Print system/library error */
- IMPORT int chown (); /* Change owner of a file */
- IMPORT int getgid (); /* Get real group id */
- IMPORT int getuid (); /* Get real user id */
- IMPORT int access (); /* Test file for access */
- #else
- #if !(AMIGA && (LATTICE || _DCC))
- LOCAL VOID perror (); /* Fake system/library error print routine */
- #endif
- #endif
-
- # if BSD4_3 || sun
- IMPORT int getrusage ();
- #endif
-
- IMPORT int atoi (); /* Convert ascii to integer */
- IMPORT VOID exit (); /* Terminate execution */
- /*IMPORT int fclose (); */ /* Close a stream */
- /*IMPORT FILE *fopen (); */ /* Open a stream */
- /*IMPORT int fprintf (); */ /* Formatted print on file */
- IMPORT VOID free ();
- IMPORT char *malloc (); /* Allocate memory */
- IMPORT int strcmp (); /* Compare strings */
- IMPORT char *strcpy (); /* Copy strings around */
- IMPORT int strlen (); /* Find length of string */
-
- #if NO_VARARGS
- static int vfprintf (); /* Use our local fake version */
- #else
- /*IMPORT int vfprintf ();*/ /* Varargs form of fprintf */
- #endif
-
- #ifndef fflush /* This is sometimes a macro */
- /*IMPORT int fflush ();*/ /* Flush output for stream */
- #endif
-
- /*
- * The user may specify a list of functions to trace or
- * debug. These lists are kept in a linear linked list,
- * a very simple implementation.
- */
-
- struct link {
- char *string; /* Pointer to link's contents */
- struct link *next_link; /* Pointer to the next link */
- };
-
- /*
- * Debugging states can be pushed or popped off of a
- * stack which is implemented as a linked list. Note
- * that the head of the list is the current state and the
- * stack is pushed by adding a new state to the head of the
- * list or popped by removing the first link.
- */
-
- struct state {
- int flags; /* Current state flags */
- int maxdepth; /* Current maximum trace depth */
- unsigned int delay; /* Delay after each output line */
- int level; /* Current function nesting level */
- FILE *out_file; /* Current output stream */
- FILE *prof_file; /* Current profiling stream */
- struct link *functions; /* List of functions */
- struct link *p_functions; /* List of profiled functions */
- struct link *keywords; /* List of debug keywords */
- struct link *processes; /* List of process names */
- struct state *next_state; /* Next state in the list */
- };
-
- LOCAL struct state *stack = NULL; /* Linked list of stacked states */
-
- /*
- * Local variables not seen by user.
- */
-
- LOCAL int lineno = 0; /* Current debugger output line number */
- LOCAL char *func = "?func"; /* Name of current user function */
- LOCAL char *file = "?file"; /* Name of current user file */
- LOCAL BOOLEAN init_done = FALSE;/* Set to TRUE when initialization done */
- LOCAL char **framep = NULL; /* Pointer to current frame */
-
- #if (unix || xenix || AMIGA)
- LOCAL int jmplevel; /* Remember nesting level at setjmp () */
- LOCAL char *jmpfunc; /* Remember current function for setjmp */
- LOCAL char *jmpfile; /* Remember current file for setjmp */
- #endif
-
- LOCAL struct link *ListParse ();/* Parse a debug command string */
- LOCAL char *StrDup (); /* Make a fresh copy of a string */
- LOCAL VOID OpenFile (); /* Open debug output stream */
- LOCAL VOID OpenProfile (); /* Open profile output stream */
- LOCAL VOID CloseFile (); /* Close debug output stream */
- LOCAL VOID PushState (); /* Push current debug state */
- LOCAL VOID ChangeOwner (); /* Change file owner and group */
- LOCAL BOOLEAN DoTrace (); /* Test for tracing enabled */
- LOCAL BOOLEAN Writable (); /* Test to see if file is writable */
- LOCAL unsigned long Clock (); /* Return current user time (ms) */
- LOCAL long *DbugMalloc (); /* Allocate memory for runtime support */
- LOCAL char *BaseName (); /* Remove leading pathname components */
- LOCAL VOID DoPrefix (); /* Print debugger line prefix */
- LOCAL VOID FreeList (); /* Free memory from linked list */
- LOCAL VOID Indent (); /* Indent line to specified indent */
-
- /* Supplied in Sys V runtime environ */
- LOCAL char *strtok (); /* Break string into tokens */
- LOCAL char *strrchr (); /* Find last occurance of char */
-
- /*
- * The following local variables are used to hold the state information
- * between the call to _db_pargs_() and (), during
- * expansion of the DBUG_PRINT macro. This is the only macro
- * that currently uses these variables.
- *
- * These variables are currently used only by _db_pargs_() and
- * _db_doprnt_().
- */
-
- LOCAL int u_line = 0; /* User source code line number */
- LOCAL char *u_keyword = "?"; /* Keyword for current macro */
-
- /*
- * Miscellaneous printf format strings.
- */
-
- #define ERR_MISSING_RETURN "%s: missing DBUG_RETURN or DBUG_VOID_RETURN macro in function \"%s\"\n"
- #define ERR_OPEN "%s: can't open debug output stream \"%s\": "
- #define ERR_CLOSE "%s: can't close debug file: "
- #define ERR_ABORT "%s: debugger aborting because %s\n"
- #define ERR_CHOWN "%s: can't change owner/group of \"%s\": "
-
- /*
- * Macros and defines for testing file accessibility under UNIX.
- */
-
- #if (unix || xenix)
- # define A_EXISTS 00 /* Test for file existance */
- # define A_EXECUTE 01 /* Test for execute permission */
- # define A_WRITE 02 /* Test for write access */
- # define A_READ 03 /* Test for read access */
- # define EXISTS(pathname) (access (pathname, A_EXISTS) == 0)
- # define WRITABLE(pathname) (access (pathname, A_WRITE) == 0)
- #else
- # define EXISTS(pathname) (FALSE) /* Assume no existance */
- #endif
-
- /*
- * Translate some calls among different systems.
- */
-
- #if (unix || xenix)
- # define Delay sleep
- IMPORT unsigned int sleep (); /* Pause for given number of seconds */
- #endif
-
- #if AMIGA
- IMPORT int Delay (); /* Pause for given number of ticks */
- #endif
-
- /*
- * FUNCTION
- *
- * _db_push_ push current debugger state and set up new one
- *
- * SYNOPSIS
- *
- * VOID _db_push_ (control)
- * char *control;
- *
- * DESCRIPTION
- *
- * Given pointer to a debug control string in "control", pushes
- * the current debug state, parses the control string, and sets
- * up a new debug state.
- *
- * The only attribute of the new state inherited from the previous
- * state is the current function nesting level. This can be
- * overridden by using the "r" flag in the control string.
- *
- * The debug control string is a sequence of colon separated fields
- * as follows:
- *
- * <field_1>:<field_2>:...:<field_N>
- *
- * Each field consists of a mandatory flag character followed by
- * an optional "," and comma separated list of modifiers:
- *
- * flag[,modifier,modifier,...,modifier]
- *
- * The currently recognized flag characters are:
- *
- * d Enable output from DBUG_<N> macros for
- * for the current state. May be followed
- * by a list of keywords which selects output
- * only for the DBUG macros with that keyword.
- * A null list of keywords implies output for
- * all macros.
- *
- * D Delay after each debugger output line.
- * The argument is the number of tenths of seconds
- * to delay, subject to machine capabilities.
- * I.E. -#D,20 is delay two seconds.
- *
- * f Limit debugging and/or tracing, and profiling to the
- * list of named functions. Note that a null list will
- * disable all functions. The appropriate "d" or "t"
- * flags must still be given, this flag only limits their
- * actions if they are enabled.
- *
- * F Identify the source file name for each
- * line of debug or trace output.
- *
- * i Identify the process with the pid for each line of
- * debug or trace output.
- *
- * g Enable profiling. Create a file called 'dbugmon.out'
- * containing information that can be used to profile
- * the program. May be followed by a list of keywords
- * that select profiling only for the functions in that
- * list. A null list implies that all functions are
- * considered.
- *
- * L Identify the source file line number for
- * each line of debug or trace output.
- *
- * n Print the current function nesting depth for
- * each line of debug or trace output.
- *
- * N Number each line of dbug output.
- *
- * o Redirect the debugger output stream to the
- * specified file. The default output is stderr.
- *
- * p Limit debugger actions to specified processes.
- * A process must be identified with the
- * DBUG_PROCESS macro and match one in the list
- * for debugger actions to occur.
- *
- * P Print the current process name for each
- * line of debug or trace output.
- *
- * r When pushing a new state, do not inherit
- * the previous state's function nesting level.
- * Useful when the output is to start at the
- * left margin.
- *
- * t Enable function call/exit trace lines.
- * May be followed by a list (containing only
- * one modifier) giving a numeric maximum
- * trace level, beyond which no output will
- * occur for either debugging or tracing
- * macros. The default is a compile time
- * option.
- *
- * Some examples of debug control strings which might appear
- * on a shell command line (the "-#" is typically used to
- * introduce a control string to an application program) are:
- *
- * -#d:t
- * -#d:f,main,subr1:F:L:t,20
- * -#d,input,output,files:n
- *
- * For convenience, any leading "-#" is stripped off.
- *
- */
-
- VOID _db_push_ (control)
- char *control;
- {
- REGISTER char *scan;
- REGISTER struct link *temp;
-
- if (control && *control == '-') {
- if (*++control == '#') {
- control++;
- }
- }
- control = StrDup (control);
- PushState ();
- scan = strtok (control, ":");
- for (; scan != NULL; scan = strtok ((char *)NULL, ":")) {
- switch (*scan++) {
- case 'd':
- _db_on_ = TRUE;
- stack -> flags |= DEBUG_ON;
- if (*scan++ == ',') {
- stack -> keywords = ListParse (scan);
- }
- break;
- case 'D':
- stack -> delay = 0;
- if (*scan++ == ',') {
- temp = ListParse (scan);
- stack -> delay = DelayArg (atoi (temp -> string));
- FreeList (temp);
- }
- break;
- case 'f':
- if (*scan++ == ',') {
- stack -> functions = ListParse (scan);
- }
- break;
- case 'F':
- stack -> flags |= FILE_ON;
- break;
- case 'i':
- stack -> flags |= PID_ON;
- break;
- case 'g':
- _db_pon_ = TRUE;
- OpenProfile(PROF_FILE);
- stack -> flags |= PROFILE_ON;
- if (*scan++ == ',') {
- stack -> p_functions = ListParse (scan);
- }
- break;
- case 'L':
- stack -> flags |= LINE_ON;
- break;
- case 'n':
- stack -> flags |= DEPTH_ON;
- break;
- case 'N':
- stack -> flags |= NUMBER_ON;
- break;
- case 'o':
- if (*scan++ == ',') {
- temp = ListParse (scan);
- OpenFile (temp -> string);
- FreeList (temp);
- } else {
- OpenFile ("-");
- }
- break;
- case 'p':
- if (*scan++ == ',') {
- stack -> processes = ListParse (scan);
- }
- break;
- case 'P':
- stack -> flags |= PROCESS_ON;
- break;
- case 'r':
- stack -> level = 0;
- break;
- case 't':
- stack -> flags |= TRACE_ON;
- if (*scan++ == ',') {
- temp = ListParse (scan);
- stack -> maxdepth = atoi (temp -> string);
- FreeList (temp);
- }
- break;
- }
- }
- free (control);
- }
-
- /*
- * FUNCTION
- *
- * _db_pop_ pop the debug stack
- *
- * DESCRIPTION
- *
- * Pops the debug stack, returning the debug state to its
- * condition prior to the most recent _db_push_ invocation.
- * Note that the pop will fail if it would remove the last
- * valid state from the stack. This prevents user errors
- * in the push/pop sequence from screwing up the debugger.
- * Maybe there should be some kind of warning printed if the
- * user tries to pop too many states.
- *
- */
-
- VOID _db_pop_ ()
- {
- REGISTER struct state *discard;
-
- discard = stack;
- if (discard != NULL && discard -> next_state != NULL) {
- stack = discard -> next_state;
- _db_fp_ = stack -> out_file;
- _db_pfp_ = stack -> prof_file;
- if (discard -> keywords != NULL) {
- FreeList (discard -> keywords);
- }
- if (discard -> functions != NULL) {
- FreeList (discard -> functions);
- }
- if (discard -> processes != NULL) {
- FreeList (discard -> processes);
- }
- if (discard -> p_functions != NULL) {
- FreeList (discard -> p_functions);
- }
- CloseFile (discard -> out_file);
- CloseFile (discard -> prof_file);
- free ((char *) discard);
- }
- }
-
- /*
- * FUNCTION
- *
- * _db_enter_ process entry point to user function
- *
- * SYNOPSIS
- *
- * VOID _db_enter_ (_func_, _file_, _line_,
- * _sfunc_, _sfile_, _slevel_, _sframep_)
- * char *_func_; points to current function name
- * char *_file_; points to current file name
- * int _line_; called from source line number
- * char **_sfunc_; save previous _func_
- * char **_sfile_; save previous _file_
- * int *_slevel_; save previous nesting level
- * char ***_sframep_; save previous frame pointer
- *
- * DESCRIPTION
- *
- * Called at the beginning of each user function to tell
- * the debugger that a new function has been entered.
- * Note that the pointers to the previous user function
- * name and previous user file name are stored on the
- * caller's stack (this is why the ENTER macro must be
- * the first "executable" code in a function, since it
- * allocates these storage locations). The previous nesting
- * level is also stored on the callers stack for internal
- * self consistency checks.
- *
- * Also prints a trace line if tracing is enabled and
- * increments the current function nesting depth.
- *
- * Note that this mechanism allows the debugger to know
- * what the current user function is at all times, without
- * maintaining an internal stack for the function names.
- *
- */
-
- VOID _db_enter_ (_func_, _file_, _line_, _sfunc_, _sfile_, _slevel_,
- _sframep_)
- char *_func_;
- char *_file_;
- int _line_;
- char **_sfunc_;
- char **_sfile_;
- int *_slevel_;
- char ***_sframep_;
- {
- long stackused;
-
- if (!init_done) {
- _db_push_ ("");
- }
- *_sfunc_ = func;
- func = _func_;
- *_sfile_ = file;
- file = BaseName (_file_);
- stack -> level++;
- *_slevel_ = stack -> level;
- *_sframep_ = framep;
- framep = (char **) _sframep_;
- if (DoProfile ()) {
- if (*framep == NULL) {
- stackused = 0;
- } else {
- stackused = ((long)(*framep)) - ((long)(framep));
- stackused = stackused > 0 ? stackused : -stackused;
- }
- (VOID) fprintf (_db_pfp_, PROF_EFMT , Clock (), func);
- #if AUTOS_REVERSE
- (VOID) fprintf (_db_pfp_, PROF_SFMT, framep, stackused, *_sfunc_);
- #else
- (VOID) fprintf (_db_pfp_, PROF_SFMT, framep, stackused, func);
- #endif
- (VOID) fflush (_db_pfp_);
- }
- if (DoTrace ()) {
- DoPrefix (_line_);
- Indent (stack -> level);
- (VOID) fprintf (_db_fp_, ">%s\n", func);
- (VOID) fflush (_db_fp_);
- (VOID) Delay (stack -> delay);
- }
- }
-
- /*
- * FUNCTION
- *
- * _db_return_ process exit from user function
- *
- * SYNOPSIS
- *
- * VOID _db_return_ (_line_, _sfunc_, _sfile_, _slevel_)
- * int _line_; current source line number
- * char **_sfunc_; where previous _func_ is to be retrieved
- * char **_sfile_; where previous _file_ is to be retrieved
- * int *_slevel_; where previous level was stashed
- *
- * DESCRIPTION
- *
- * Called just before user function executes an explicit or implicit
- * return. Prints a trace line if trace is enabled, decrements
- * the current nesting level, and restores the current function and
- * file names from the defunct function's stack.
- *
- */
-
- VOID _db_return_ (_line_, _sfunc_, _sfile_, _slevel_)
- int _line_;
- char **_sfunc_;
- char **_sfile_;
- int *_slevel_;
- {
- if (!init_done) {
- _db_push_ ("");
- }
- if (stack -> level != *_slevel_ && (TRACING || DEBUGGING || PROFILING)) {
- (VOID) fprintf (_db_fp_, ERR_MISSING_RETURN, _db_process_, func);
- } else if (DoProfile ()) {
- (VOID) fprintf (_db_pfp_, PROF_XFMT, Clock(), func);
- } else if (DoTrace ()) {
- DoPrefix (_line_);
- Indent (stack -> level);
- (VOID) fprintf (_db_fp_, "<%s\n", func);
- }
- (VOID) fflush (_db_fp_);
- (VOID) Delay (stack -> delay);
- stack -> level = *_slevel_ - 1;
- func = *_sfunc_;
- file = *_sfile_;
- if (framep != NULL) {
- framep = (char **) *framep;
- }
- }
-
- /*
- * FUNCTION
- *
- * _db_pargs_ log arguments for subsequent use by _db_doprnt_()
- *
- * SYNOPSIS
- *
- * VOID _db_pargs_ (_line_, keyword)
- * int _line_;
- * char *keyword;
- *
- * DESCRIPTION
- *
- * The new universal printing macro DBUG_PRINT, which replaces
- * all forms of the DBUG_N macros, needs two calls to runtime
- * support routines. The first, this function, remembers arguments
- * that are used by the subsequent call to _db_doprnt_().
- *
- */
-
- VOID _db_pargs_ (_line_, keyword)
- int _line_;
- char *keyword;
- {
- u_line = _line_;
- u_keyword = keyword;
- }
-
- /*
- * FUNCTION
- *
- * _db_doprnt_ handle print of debug lines
- *
- * SYNOPSIS
- *
- * VOID _db_doprnt_ (format, va_alist)
- * char *format;
- * va_dcl;
- *
- * DESCRIPTION
- *
- * When invoked via one of the DBUG macros, tests the current keyword
- * set by calling _db_pargs_() to see if that macro has been selected
- * for processing via the debugger control string, and if so, handles
- * printing of the arguments via the format string. The line number
- * of the DBUG macro in the source is found in u_line.
- *
- * Note that the format string SHOULD NOT include a terminating
- * newline, this is supplied automatically.
- *
- */
-
- /*VARARGS1*/
- VOID _db_doprnt_ (format, va_alist)
- char *format;
- va_dcl
- {
- va_list args;
-
- va_start (args);
- if (_db_keyword_ (u_keyword)) {
- DoPrefix (u_line);
- if (TRACING) {
- Indent (stack -> level + 1);
- } else {
- (VOID) fprintf (_db_fp_, "%s: ", func);
- }
- (VOID) fprintf (_db_fp_, "%s: ", u_keyword);
- (VOID) vfprintf (_db_fp_, format, args);
- (VOID) fprintf (_db_fp_, "\n");
- (VOID) fflush (_db_fp_);
- (VOID) Delay (stack -> delay);
- }
- va_end (args);
- }
-
- /*
- * FUNCTION
- *
- * ListParse parse list of modifiers in debug control string
- *
- * SYNOPSIS
- *
- * LOCAL struct link *ListParse (ctlp)
- * char *ctlp;
- *
- * DESCRIPTION
- *
- * Given pointer to a comma separated list of strings in "cltp",
- * parses the list, building a list and returning a pointer to it.
- * The original comma separated list is destroyed in the process of
- * building the linked list, thus it had better be a duplicate
- * if it is important.
- *
- * Note that since each link is added at the head of the list,
- * the final list will be in "reverse order", which is not
- * significant for our usage here.
- *
- */
-
- LOCAL struct link *ListParse (ctlp)
- char *ctlp;
- {
- REGISTER char *start;
- REGISTER struct link *new;
- REGISTER struct link *head;
-
- head = NULL;
- while (*ctlp != EOS) {
- start = ctlp;
- while (*ctlp != EOS && *ctlp != ',') {
- ctlp++;
- }
- if (*ctlp == ',') {
- *ctlp++ = EOS;
- }
- new = (struct link *) DbugMalloc (sizeof (struct link));
- new -> string = StrDup (start);
- new -> next_link = head;
- head = new;
- }
- return (head);
- }
-
- /*
- * FUNCTION
- *
- * InList test a given string for member of a given list
- *
- * SYNOPSIS
- *
- * LOCAL BOOLEAN InList (linkp, cp)
- * struct link *linkp;
- * char *cp;
- *
- * DESCRIPTION
- *
- * Tests the string pointed to by "cp" to determine if it is in
- * the list pointed to by "linkp". Linkp points to the first
- * link in the list. If linkp is NULL then the string is treated
- * as if it is in the list (I.E all strings are in the null list).
- * This may seem rather strange at first but leads to the desired
- * operation if no list is given. The net effect is that all
- * strings will be accepted when there is no list, and when there
- * is a list, only those strings in the list will be accepted.
- *
- */
-
- LOCAL BOOLEAN InList (linkp, cp)
- struct link *linkp;
- char *cp;
- {
- REGISTER struct link *scan;
- REGISTER BOOLEAN accept;
-
- if (linkp == NULL) {
- accept = TRUE;
- } else {
- accept = FALSE;
- for (scan = linkp; scan != NULL; scan = scan -> next_link) {
- if (STREQ (scan -> string, cp)) {
- accept = TRUE;
- break;
- }
- }
- }
- return (accept);
- }
-
- /*
- * FUNCTION
- *
- * PushState push current state onto stack and set up new one
- *
- * SYNOPSIS
- *
- * LOCAL VOID PushState ()
- *
- * DESCRIPTION
- *
- * Pushes the current state on the state stack, and initializes
- * a new state. The only parameter inherited from the previous
- * state is the function nesting level. This action can be
- * inhibited if desired, via the "r" flag.
- *
- * The state stack is a linked list of states, with the new
- * state added at the head. This allows the stack to grow
- * to the limits of memory if necessary.
- *
- */
-
- LOCAL VOID PushState ()
- {
- REGISTER struct state *new;
-
- new = (struct state *) DbugMalloc (sizeof (struct state));
- new -> flags = 0;
- new -> delay = 0;
- new -> maxdepth = MAXDEPTH;
- if (stack != NULL) {
- new -> level = stack -> level;
- } else {
- new -> level = 0;
- }
- new -> out_file = stderr;
- new -> functions = NULL;
- new -> p_functions = NULL;
- new -> keywords = NULL;
- new -> processes = NULL;
- new -> next_state = stack;
- stack = new;
- init_done = TRUE;
- }
-
- /*
- * FUNCTION
- *
- * DoTrace check to see if tracing is current enabled
- *
- * SYNOPSIS
- *
- * LOCAL BOOLEAN DoTrace ()
- *
- * DESCRIPTION
- *
- * Checks to see if tracing is enabled based on whether the
- * user has specified tracing, the maximum trace depth has
- * not yet been reached, the current function is selected,
- * and the current process is selected. Returns TRUE if
- * tracing is enabled, FALSE otherwise.
- *
- */
-
- LOCAL BOOLEAN DoTrace ()
- {
- REGISTER BOOLEAN trace;
-
- trace = FALSE;
- if (TRACING) {
- if (stack -> level <= stack -> maxdepth) {
- if (InList (stack -> functions, func)) {
- if (InList (stack -> processes, _db_process_)) {
- trace = TRUE;
- }
- }
- }
- }
- return (trace);
- }
-
- /*
- * FUNCTION
- *
- * DoProfile check to see if profiling is current enabled
- *
- * SYNOPSIS
- *
- * LOCAL BOOLEAN DoProfile ()
- *
- * DESCRIPTION
- *
- * Checks to see if profiling is enabled based on whether the
- * user has specified profiling, the maximum trace depth has
- * not yet been reached, the current function is selected,
- * and the current process is selected. Returns TRUE if
- * profiling is enabled, FALSE otherwise.
- *
- */
-
- LOCAL BOOLEAN DoProfile ()
- {
- REGISTER BOOLEAN profile;
-
- profile = FALSE;
- if (PROFILING) {
- if (stack -> level <= stack -> maxdepth) {
- if (InList (stack -> p_functions, func)) {
- if (InList (stack -> processes, _db_process_)) {
- profile = TRUE;
- }
- }
- }
- }
- return (profile);
- }
-
- /*
- * FUNCTION
- *
- * _db_keyword_ test keyword for member of keyword list
- *
- * SYNOPSIS
- *
- * BOOLEAN _db_keyword_ (keyword)
- * char *keyword;
- *
- * DESCRIPTION
- *
- * Test a keyword to determine if it is in the currently active
- * keyword list. As with the function list, a keyword is accepted
- * if the list is null, otherwise it must match one of the list
- * members. When debugging is not on, no keywords are accepted.
- * After the maximum trace level is exceeded, no keywords are
- * accepted (this behavior subject to change). Additionally,
- * the current function and process must be accepted based on
- * their respective lists.
- *
- * Returns TRUE if keyword accepted, FALSE otherwise.
- *
- */
-
- BOOLEAN _db_keyword_ (keyword)
- char *keyword;
- {
- REGISTER BOOLEAN accept;
-
- if (!init_done) {
- _db_push_ ("");
- }
- accept = FALSE;
- if (DEBUGGING) {
- if (stack -> level <= stack -> maxdepth) {
- if (InList (stack -> functions, func)) {
- if (InList (stack -> keywords, keyword)) {
- if (InList (stack -> processes, _db_process_)) {
- accept = TRUE;
- }
- }
- }
- }
- }
- return (accept);
- }
-
- /*
- * FUNCTION
- *
- * Indent indent a line to the given indentation level
- *
- * SYNOPSIS
- *
- * LOCAL VOID Indent (indent)
- * int indent;
- *
- * DESCRIPTION
- *
- * Indent a line to the given level. Note that this is
- * a simple minded but portable implementation.
- * There are better ways.
- *
- * Also, the indent must be scaled by the compile time option
- * of character positions per nesting level.
- *
- */
-
- LOCAL VOID Indent (indent)
- int indent;
- {
- REGISTER int count;
- AUTO char buffer[PRINTBUF];
-
- indent *= INDENT;
- for (count = 0; (count < (indent - INDENT)) && (count < (PRINTBUF - 1)); count++) {
- if ((count % INDENT) == 0) {
- buffer[count] = '|';
- } else {
- buffer[count] = ' ';
- }
- }
- buffer[count] = EOS;
- (VOID) fprintf (_db_fp_, buffer);
- (VOID) fflush (_db_fp_);
- }
-
- /*
- * FUNCTION
- *
- * FreeList free all memory associated with a linked list
- *
- * SYNOPSIS
- *
- * LOCAL VOID FreeList (linkp)
- * struct link *linkp;
- *
- * DESCRIPTION
- *
- * Given pointer to the head of a linked list, frees all
- * memory held by the list and the members of the list.
- *
- */
-
- LOCAL VOID FreeList (linkp)
- struct link *linkp;
- {
- REGISTER struct link *old;
-
- while (linkp != NULL) {
- old = linkp;
- linkp = linkp -> next_link;
- if (old -> string != NULL) {
- free (old -> string);
- }
- free ((char *) old);
- }
- }
-
- /*
- * FUNCTION
- *
- * StrDup make a duplicate of a string in new memory
- *
- * SYNOPSIS
- *
- * LOCAL char *StrDup (string)
- * char *string;
- *
- * DESCRIPTION
- *
- * Given pointer to a string, allocates sufficient memory to make
- * a duplicate copy, and copies the string to the newly allocated
- * memory. Failure to allocated sufficient memory is immediately
- * fatal.
- *
- */
-
- LOCAL char *StrDup (string)
- char *string;
- {
- REGISTER char *new;
-
- new = (char *) DbugMalloc (strlen (string) + 1);
- (VOID) strcpy (new, string);
- return (new);
- }
-
- /*
- * FUNCTION
- *
- * DoPrefix print debugger line prefix prior to indentation
- *
- * SYNOPSIS
- *
- * LOCAL VOID DoPrefix (_line_)
- * int _line_;
- *
- * DESCRIPTION
- *
- * Print prefix common to all debugger output lines, prior to
- * doing indentation if necessary. Print such information as
- * current process name, current source file name and line number,
- * and current function nesting depth.
- *
- */
-
-
- LOCAL VOID DoPrefix (_line_)
- int _line_;
- {
- #if (unix || xenix)
- extern int getpid ();
- #endif
-
- lineno++;
- #if (unix || xenix)
- if (stack -> flags & PID_ON) {
- (VOID) fprintf (_db_fp_, "%5d: ", getpid ());
- }
- #endif
- if (stack -> flags & NUMBER_ON) {
- (VOID) fprintf (_db_fp_, "%5d: ", lineno);
- }
- if (stack -> flags & PROCESS_ON) {
- (VOID) fprintf (_db_fp_, "%s: ", _db_process_);
- }
- if (stack -> flags & FILE_ON) {
- (VOID) fprintf (_db_fp_, "%14s: ", file);
- }
- if (stack -> flags & LINE_ON) {
- (VOID) fprintf (_db_fp_, "%5d: ", _line_);
- }
- if (stack -> flags & DEPTH_ON) {
- (VOID) fprintf (_db_fp_, "%4d: ", stack -> level);
- }
- (VOID) fflush (_db_fp_);
- }
-
- /*
- * FUNCTION
- *
- * OpenFile open new output stream for debugger output
- *
- * SYNOPSIS
- *
- * LOCAL VOID OpenFile (name)
- * char *name;
- *
- * DESCRIPTION
- *
- * Given name of a new file (or "-" for stdout) opens the file
- * and sets the output stream to the new file.
- *
- */
-
- LOCAL VOID OpenFile (name)
- char *name;
- {
- REGISTER FILE *fp;
- REGISTER BOOLEAN newfile;
-
- if (name != NULL) {
- if (strcmp (name, "-") == 0) {
- _db_fp_ = stdout;
- stack -> out_file = _db_fp_;
- } else {
- if (!Writable (name)) {
- (VOID) fprintf (_db_fp_, ERR_OPEN, _db_process_, name);
- perror ("");
- (VOID) fflush (_db_fp_);
- (VOID) Delay (stack -> delay);
- } else {
- if (EXISTS (name)) {
- newfile = FALSE;
- } else {
- newfile = TRUE;
- }
- fp = fopen (name, "a");
- if (fp == NULL) {
- (VOID) fprintf (_db_fp_, ERR_OPEN, _db_process_, name);
- perror ("");
- (VOID) fflush (_db_fp_);
- (VOID) Delay (stack -> delay);
- } else {
- _db_fp_ = fp;
- stack -> out_file = fp;
- if (newfile) {
- ChangeOwner (name);
- }
- }
- }
- }
- }
- }
-
- /*
- * FUNCTION
- *
- * OpenProfile open new output stream for profiler output
- *
- * SYNOPSIS
- *
- * LOCAL VOID OpenProfile (name)
- * char *name;
- *
- * DESCRIPTION
- *
- * Given name of a new file, opens the file
- * and sets the profiler output stream to the new file.
- *
- * It is currently unclear whether the prefered behavior is
- * to truncate any existing file, or simply append to it.
- * The latter behavior would be desirable for collecting
- * accumulated runtime history over a number of separate
- * runs. It might take some changes to the analyzer program
- * though, and the notes that Binayak sent with the profiling
- * diffs indicated that append was the normal mode, but this
- * does not appear to agree with the actual code. I haven't
- * investigated at this time [fnf; 24-Jul-87].
- */
-
- LOCAL VOID OpenProfile (name)
- char *name;
- {
- REGISTER FILE *fp;
- REGISTER BOOLEAN newfile;
-
- if (name != NULL) {
- if (!Writable (name)) {
- (VOID) fprintf (_db_fp_, ERR_OPEN, _db_process_, name);
- perror ("");
- (VOID) fflush (_db_fp_);
- (VOID) Delay (stack -> delay);
- } else {
- if (EXISTS (name)) {
- newfile = FALSE;
- } else {
- newfile = TRUE;
- }
- fp = fopen (name, "w");
- if (fp == NULL) {
- (VOID) fprintf (_db_fp_, ERR_OPEN, _db_process_, name);
- perror ("");
- (VOID) fflush (_db_fp_);
- (VOID) Delay (stack -> delay);
- } else {
- _db_pfp_ = fp;
- stack -> prof_file = fp;
- if (newfile) {
- ChangeOwner (name);
- }
- }
- }
- }
- }
-
- /*
- * FUNCTION
- *
- * CloseFile close the debug output stream
- *
- * SYNOPSIS
- *
- * LOCAL VOID CloseFile (fp)
- * FILE *fp;
- *
- * DESCRIPTION
- *
- * Closes the debug output stream unless it is standard output
- * or standard error.
- *
- */
-
- LOCAL VOID CloseFile (fp)
- FILE *fp;
- {
- if (fp != stderr && fp != stdout) {
- if (fclose (fp) == EOF) {
- (VOID) fprintf (stderr, ERR_CLOSE, _db_process_);
- perror ("");
- (VOID) fflush (stderr);
- (VOID) Delay (stack -> delay);
- }
- }
- }
-
- /*
- * FUNCTION
- *
- * DbugExit print error message and exit
- *
- * SYNOPSIS
- *
- * LOCAL VOID DbugExit (why)
- * char *why;
- *
- * DESCRIPTION
- *
- * Prints error message using current process name, the reason for
- * aborting (typically out of memory), and exits with status 1.
- * This should probably be changed to use a status code
- * defined in the user's debugger include file.
- *
- */
-
- LOCAL VOID DbugExit (why)
- char *why;
- {
- (VOID) fprintf (stderr, ERR_ABORT, _db_process_, why);
- (VOID) fflush (stderr);
- (VOID) Delay (stack -> delay);
- exit (1);
- }
-
- /*
- * FUNCTION
- *
- * DbugMalloc allocate memory for debugger runtime support
- *
- * SYNOPSIS
- *
- * LOCAL long *DbugMalloc (size)
- * int size;
- *
- * DESCRIPTION
- *
- * Allocate more memory for debugger runtime support functions.
- * Failure to to allocate the requested number of bytes is
- * immediately fatal to the current process. This may be
- * rather unfriendly behavior. It might be better to simply
- * print a warning message, freeze the current debugger state,
- * and continue execution.
- *
- */
-
- LOCAL long *DbugMalloc (size)
- int size;
- {
- register long *new;
-
- new = (long *) malloc ((unsigned int) size);
- if (new == NULL) {
- DbugExit ("out of memory");
- }
- return (new);
- }
-
- /*
- * This function may be eliminated when strtok is available
- * in the runtime environment (missing from BSD4.1).
- */
-
- LOCAL char *strtok (s1, s2)
- char *s1, *s2;
- {
- static char *end = NULL;
- REGISTER char *rtnval;
-
- rtnval = NULL;
- if (s2 != NULL) {
- if (s1 != NULL) {
- end = s1;
- rtnval = strtok ((char *) NULL, s2);
- } else if (end != NULL) {
- if (*end != EOS) {
- rtnval = end;
- while (*end != *s2 && *end != EOS) {end++;}
- if (*end != EOS) {
- *end++ = EOS;
- }
- }
- }
- }
- return (rtnval);
- }
-
- /*
- * FUNCTION
- *
- * BaseName strip leading pathname components from name
- *
- * SYNOPSIS
- *
- * LOCAL char *BaseName (pathname)
- * char *pathname;
- *
- * DESCRIPTION
- *
- * Given pointer to a complete pathname, locates the base file
- * name at the end of the pathname and returns a pointer to
- * it.
- *
- */
-
- LOCAL char *BaseName (pathname)
- char *pathname;
- {
- register char *base;
-
- base = strrchr (pathname, '/');
- if (base++ == NULL) {
- base = pathname;
- }
- return (base);
- }
-
- /*
- * FUNCTION
- *
- * Writable test to see if a pathname is writable/creatable
- *
- * SYNOPSIS
- *
- * LOCAL BOOLEAN Writable (pathname)
- * char *pathname;
- *
- * DESCRIPTION
- *
- * Because the debugger might be linked in with a program that
- * runs with the set-uid-bit (suid) set, we have to be careful
- * about opening a user named file for debug output. This consists
- * of checking the file for write access with the real user id,
- * or checking the directory where the file will be created.
- *
- * Returns TRUE if the user would normally be allowed write or
- * create access to the named file. Returns FALSE otherwise.
- *
- */
-
- LOCAL BOOLEAN Writable (pathname)
- char *pathname;
- {
- REGISTER BOOLEAN granted;
- #if (unix || xenix)
- REGISTER char *lastslash;
- #endif
-
- #if (!unix && !xenix)
- granted = TRUE;
- #else
- granted = FALSE;
- if (EXISTS (pathname)) {
- if (WRITABLE (pathname)) {
- granted = TRUE;
- }
- } else {
- lastslash = strrchr (pathname, '/');
- if (lastslash != NULL) {
- *lastslash = EOS;
- } else {
- pathname = ".";
- }
- if (WRITABLE (pathname)) {
- granted = TRUE;
- }
- if (lastslash != NULL) {
- *lastslash = '/';
- }
- }
- #endif
- return (granted);
- }
-
- /*
- * This function may be eliminated when strrchr is available
- * in the runtime environment (missing from BSD4.1).
- * Alternately, you can use rindex() on BSD systems.
- */
-
- LOCAL char *strrchr (s, c)
- char *s;
- char c;
- {
- REGISTER char *scan;
-
- for (scan = s; *scan != EOS; scan++) {;}
- while (scan > s && *--scan != c) {;}
- if (*scan != c) {
- scan = NULL;
- }
- return (scan);
- }
-
- /*
- * FUNCTION
- *
- * ChangeOwner change owner to real user for suid programs
- *
- * SYNOPSIS
- *
- * LOCAL VOID ChangeOwner (pathname)
- *
- * DESCRIPTION
- *
- * For unix systems, change the owner of the newly created debug
- * file to the real owner. This is strictly for the benefit of
- * programs that are running with the set-user-id bit set.
- *
- * Note that at this point, the fact that pathname represents
- * a newly created file has already been established. If the
- * program that the debugger is linked to is not running with
- * the suid bit set, then this operation is redundant (but
- * harmless).
- *
- */
-
- LOCAL VOID ChangeOwner (pathname)
- char *pathname;
- {
- #if (unix || xenix)
- if (chown (pathname, getuid (), getgid ()) == -1) {
- (VOID) fprintf (stderr, ERR_CHOWN, _db_process_, pathname);
- perror ("");
- (VOID) fflush (stderr);
- (VOID) Delay (stack -> delay);
- }
- #endif
- }
-
- /*
- * FUNCTION
- *
- * _db_setjmp_ save debugger environment
- *
- * SYNOPSIS
- *
- * VOID _db_setjmp_ ()
- *
- * DESCRIPTION
- *
- * Invoked as part of the user's DBUG_SETJMP macro to save
- * the debugger environment in parallel with saving the user's
- * environment.
- *
- */
-
- VOID _db_setjmp_ ()
- {
- jmplevel = stack -> level;
- jmpfunc = func;
- jmpfile = file;
- }
-
- /*
- * FUNCTION
- *
- * _db_longjmp_ restore previously saved debugger environment
- *
- * SYNOPSIS
- *
- * VOID _db_longjmp_ ()
- *
- * DESCRIPTION
- *
- * Invoked as part of the user's DBUG_LONGJMP macro to restore
- * the debugger environment in parallel with restoring the user's
- * previously saved environment.
- *
- */
-
- VOID _db_longjmp_ ()
- {
- stack -> level = jmplevel;
- if (jmpfunc) {
- func = jmpfunc;
- }
- if (jmpfile) {
- file = jmpfile;
- }
- }
-
- /*
- * FUNCTION
- *
- * DelayArg convert D flag argument to appropriate value
- *
- * SYNOPSIS
- *
- * LOCAL int DelayArg (value)
- * int value;
- *
- * DESCRIPTION
- *
- * Converts delay argument, given in tenths of a second, to the
- * appropriate numerical argument used by the system to delay
- * that that many tenths of a second. For example, on the
- * AMIGA, there is a system call "Delay()" which takes an
- * argument in ticks (50 per second). On unix, the sleep
- * command takes seconds. Thus a value of "10", for one
- * second of delay, gets converted to 50 on the AMIGA, and 1
- * on unix. Other systems will need to use a timing loop.
- *
- */
-
- LOCAL int DelayArg (value)
- int value;
- {
- unsigned int delayarg = 0;
-
- #if (unix || xenix)
- delayarg = value / 10; /* Delay is in seconds for sleep () */
- #endif
- #if AMIGA
- delayarg = (HZ * value) / 10; /* Delay in ticks for Delay () */
- #endif
- return ((int) delayarg);
- }
-
- /*
- * A dummy delay stub for systems that do not support delays.
- * With a little work, this can be turned into a timing loop.
- */
-
- #if (!unix && !xenix && !AMIGA)
- Delay ()
- {
- }
- #endif
-
- /*
- * FUNCTION
- *
- * perror perror simulation for systems that don't have it
- *
- * SYNOPSIS
- *
- * LOCAL VOID perror (s)
- * char *s;
- *
- * DESCRIPTION
- *
- * Perror produces a message on the standard error stream which
- * provides more information about the library or system error
- * just encountered. The argument string s is printed, followed
- * by a ':', a blank, and then a message and a newline.
- *
- * An undocumented feature of the unix perror is that if the string
- * 's' is a null string (NOT a NULL pointer!), then the ':' and
- * blank are not printed.
- *
- * This version just complains about an "unknown system error".
- *
- */
-
- #if !unix && !xenix && !(AMIGA && (LATTICE || _DCC))
-
- LOCAL VOID perror (s)
- char *s;
- {
- if (s && *s != EOS) {
- (VOID) fprintf (stderr, "%s: ", s);
- }
- (VOID) fprintf (stderr, "<unknown system error>\n");
- }
-
- #endif /* !unix && !xenix && !(AMIGA && (LATTICE || _DCC)) */
-
- /*
- * Here we need the definitions of the clock routine. Add your
- * own for whatever system that you have.
- */
-
- #if (unix || xenix)
-
- # include <sys/param.h>
- # if BSD4_3 || sun
-
- /*
- * Definition of the Clock() routine for 4.3 BSD.
- */
-
- #include <sys/time.h>
- #include <sys/resource.h>
-
- /*
- * Returns the user time in milliseconds used by this process so
- * far.
- */
-
- LOCAL unsigned long Clock ()
- {
- struct rusage ru;
-
- (VOID) getrusage (RUSAGE_SELF, &ru);
- return ((ru.ru_utime.tv_sec * 1000) + (ru.ru_utime.tv_usec / 1000));
- }
-
- #else
-
- LOCAL unsigned long Clock ()
- {
- return (0);
- }
-
- # endif
-
- #else
-
- #if AMIGA
-
- struct DateStamp { /* Yes, this is a hack, but doing it right */
- long ds_Days; /* is incredibly ugly without splitting this */
- long ds_Minute; /* off into a separate file */
- long ds_Tick;
- };
-
- static int first_clock = TRUE;
- static struct DateStamp begin;
- static struct DateStamp elapsed;
-
- LOCAL unsigned long Clock ()
- {
- register struct DateStamp *now;
- register unsigned long millisec = 0;
- extern VOID *AllocMem ();
-
- now = (struct DateStamp *) AllocMem ((long) sizeof (struct DateStamp), 0L);
- if (now != NULL) {
- if (first_clock == TRUE) {
- first_clock = FALSE;
- (VOID) DateStamp (now);
- begin = *now;
- }
- (VOID) DateStamp (now);
- millisec = 24 * 3600 * (1000 / HZ) * (now -> ds_Days - begin.ds_Days);
- millisec += 60 * (1000 / HZ) * (now -> ds_Minute - begin.ds_Minute);
- millisec += (1000 / HZ) * (now -> ds_Tick - begin.ds_Tick);
- (VOID) FreeMem (now, (long) sizeof (struct DateStamp));
- }
- return (millisec);
- }
-
- #endif /* AMIGA */
- #endif /* unix */
-
- #if NO_VARARGS
-
- /*
- * Fake vfprintf for systems that don't support it. If this
- * doesn't work, you are probably SOL...
- */
-
- static int vfprintf (stream, format, ap)
- FILE *stream;
- char *format;
- va_list ap;
- {
- int rtnval;
- extern int fprintf ();
- ARGS_DCL;
-
- ARG0 = va_arg (ap, ARGS_TYPE);
- ARG1 = va_arg (ap, ARGS_TYPE);
- ARG2 = va_arg (ap, ARGS_TYPE);
- ARG3 = va_arg (ap, ARGS_TYPE);
- ARG4 = va_arg (ap, ARGS_TYPE);
- ARG5 = va_arg (ap, ARGS_TYPE);
- ARG6 = va_arg (ap, ARGS_TYPE);
- ARG7 = va_arg (ap, ARGS_TYPE);
- ARG8 = va_arg (ap, ARGS_TYPE);
- ARG9 = va_arg (ap, ARGS_TYPE);
- rtnval = fprintf (stream, format, ARGS_LIST);
- return (rtnval);
- }
-
- #endif /* NO_VARARGS */
-