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ccasmb.c
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ccasmb.c
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/* CCASMB.C - Assembler and Linker invocation
**
** (c) Copyright Ken Harrenstien 1989
** All changes after v.97, 12-Aug-1988
** (c) Copyright Ken Harrenstien, SRI International 1985, 1986
** All changes after v.23, 8-Aug-1985
**
** Original version (c) 1981 K. Chen
*/
#include "ccsite.h"
#include "ccchar.h"
#include "cc.h"
#include <stdlib.h> /* calloc, realloc, free */
#include <sys/types.h> /* For stat(), for symval stuff */
#include <sys/stat.h>
#if !__MSDOS__ // FW KCC-NT
#include <sys/file.h> /* For open() */
#endif
#include <errno.h> /* For strerror */
#include <string.h> /* For strchr etc */
#if !__MSDOS__ // FW KCC-NT
#include <frkxec.h> /* New stuff */
#endif
#if __MSDOS__ /* 4/92 avoid non-ANSI stat() */
#define stats stat /* just use stat() function */
#else
#ifdef mod /* KAR-4/92, remove collision with mod in comdef (boom!) */
#undef mod
#endif
#include <sys/usysio.h>
#undef sixbit /* KAR-8/92, accomodate comdef.h def of sixbit */
#include <csimon.h> /* KAR-5/92, for MON_ calls for times */
#define sixbit _sixbit /* KAR-8/92, see comment on #undef */
int stats (char *source_fname, struct stat *statb);
static
int long to_sixbit (char *str);
static
char stats_parse = 0;
#endif
#include <stdio.h>
#if !__MSDOS__ // FW KCC-NT
#define _getpid(_pid) ((MUUO_VAL("PJOB", &_pid)), _pid)
#include <muuo.h> /* For TMPCOR etc */
#endif
#define PRGBLEN 0
#ifndef RH
#define RH 0777777L /* Mask for RH of a word */
#endif
#ifndef LH
#define LH (-1<<18) /* Mask for LH */
#endif
#ifndef XWD /* Put halves together */
#define XWD(a,b) (((unsigned)(a)<<18) | ((unsigned)(b)&RH))
#endif
/* Exported routines */
int asmb (char *, char *, char *);
char* fnparse (char *, char *, char *, char *, char *);
int fnxisrel (char *);
void runlink (int, int, char **, char *, char *);
int symval (char *fnam, char *sym, int valf);
char* estrcpy (char *, char *);
char* fstrcpy (char *, char *, char *);
INT sixbit (char *);
/* Imported routines */
#if !SYS_CSI /* KAR-3/92, removed LIBC dependency, use ANSI calls */
extern
int open (char *path, int flags), /* , int mode)?? */
getpid (void),
stat (char *, struct stat *),
fstat (int handle, struct stat *),
#ifdef __COMPILER_KCC /* BC++ error */
unlink (char *), /* Syscalls */
#endif
close (int fd),
read (int fd, char *buf, int nbytes);
#else
extern
int remove (const char *);
#endif
#ifdef __COMPILER_KCC__
extern
int forkexec (struct frkxec *f);
#endif /* KCC */
/* Internal routines */
static
char* gtmpfile (char *);
static
int* stmpfile (char *, char *, char *);
static
int* maktflink (int, char **, char *, char *),
crsfunv (char *, long),
hackfork (char *, int *, int, int, int),
ldsymfile (char *);
#if DEBUG_KCC /* 8/91 KCC size */
static
int tdebug = 0; /* Set non-zero to print out tmpcor args */
#endif
static
char* asmtfptr = NULL; /* Assembler tmpcor file contents */
static
int asmtflen = 0; /* Length not including trailing NUL */
/* BP7 - macro to convert a char ptr into a 7-bit byte pointer */
#if __MSDOS__
#include <process.h> /* getpid() */
#define bp7(cp) ((char *)(cp))
#else
#define bp7(cp) ((char *)(int)(_char7 *)(cp))
#endif
/*
Description of COMPIL (or RPG) argument passing mechanism.
On TOPS-10 and CSI there is a convention for passing arguments
amongst programs which compile and load programs. This is known as
RPG ("Rapid Program Generation"), and is only invoked by the so-called
COMPIL-class commands:
COMPILE, LOAD, EXECUTE, DEBUG.
When a program is invoked by the TOPS-20 EXEC (or the TOPS-10
monitor) at its starting address plus 1, it is expected to look for
command input from a temporary file rather than from the user's TTY.
This consists of first looking for a TMPCOR file of a specific name
associated with that program (MAC for MACRO, LNK for LINK, KCC for
KCC, etc.).
This is done with the TMPCOR UUO. The file is deleted when read.
If there is no such temporary file, then the program is expected to look
for an actual disk file of the name:
DSK:nnnNAM.TMP where nnn is the job number in decimal (right-justified
with leading zeros). This file should likewise be deleted after reading.
The TMPCOR file furnished to a compiler/assembler contains a single
command line for each file to be compiled, of the
format:
NAME,=NAME.EXT<crlf>
The monitor has arcane special knowledge of just how each
program, especially LINK, likes its commands formatted. The above
appears to be most common, however. Finally, the way that the monitor sets
up a chain of programs is by adding a final command line to the file
of the form:
<program-file>!<crlf>
which instructs the compiler/assembler to load and run the specified
program, starting it with an offset of 1. This is a full filename
specification and no searching should be needed. For KCC this will normally
be SYS:LINK.EXE if LINK is to be invoked next.
*/
/*
* ASMB - Set up assembler arguments. We must defer assembly to the end
* of compilation, so remember all the assembler arguments
* in an allocated buffer.
*
* Returns -1 if error, 0 if arguments successfully stored.
*/
int
asmb (char *m, char *f1, char *f2)
{
char str[FNAMESIZE*4]; /* Big enough for 3 names plus punct */
char* nptr;
int n;
sprintf (str, "%s%s=%s%s%s%s%s\n",
m, /* Specify output file name */
(longidents ? "/k" : ""), /* FW 2A(51) Using long identifiers? */
(f1 ? f1 : ""), /* Specify 1st input file if one */
((f1 && delete) ? "/d" : ""), /* delete asm source */
(f1 && f2) ? "," : "", /* Use separator if 2 inputs */
(f2 ? f2 : ""), /* Specify 2nd input file if exists */
((f2 && delete && (!mlist)) ? "/d" : ""));
/* Specify delete asm source */
/* Add new command to assembler's saved TMPCOR file block */
n = strlen (str); /* Find # chars needed */
if ((nptr = realloc (asmtfptr, asmtflen + n + 1)) == NULL)
jerr ("Out of memory for assembler tmpcor file (%d chars)", asmtflen);
else
{
asmtfptr = nptr;
strcpy (asmtfptr + asmtflen, str); /* Add new cmd to end */
asmtflen += n;
}
return 0; /* Say assembly was deferred */
}
/*
* EXECARGS - Get args, UNIX style, from exec or monitor TMPCOR file
* The code is given a char pointer to a TMPCOR-format file
* in memory, and assumes that this memory will stay constant throughout
* this invocation of KCC, so it is OK to traffic in pointers into this
* area.
*/
char *
execargs (int *cntp, char ***vecp)
{
#define MAXARGS 200
static char *vecs[MAXARGS]; /* Easier than calloc */
int c, vcnt;
char *cp, *err = NULL;
char *nextprog = NULL,
*p = gtmpfile("KCC"); /* Get temp file of this name */
#if DEBUG_KCC
char *begp = p;
int flen = strlen(begp); /* Remember length now before chopping it up */
#endif
if (p == NULL)
{
*cntp = 0;
*vecp = NULL;
return NULL;
}
vecs[0] = "exec-args"; /* Always furnish 1st arg */
vcnt = 1;
while (1) /* For each command line in file */
/* Skip to start of input filename */
{
cp = p; /* Remember start of stuff */
while (1)
{
switch (c = *p)
{
case '=': /* Found filename to compile? */
break; /* just get out of loop. */
case '\0': /* Ran out of input */
if (cp != p) /* If not at beg of line, */
err = "command line doesn't end with CR or LF";
break;
case '!': /* Chain through this program */
if (cp == p)
err = "null program name for chain";
*p = '\0'; /* Terminate program name */
nextprog = cp; /* Save pointer to it */
if (*++p != '\r' && *p != '\n') /* Must end in EOL */
err = "no EOL after chain program name";
else if (*++p /* If there is another char */
&& ((*p != '\r' && *p != '\n') /* it shd be EOL */
|| *++p)) /* followed by a null. */
err = "unexpected stuff after chain program name";
break;
case '\r':
case '\n':
if (cp == p) /* Allow null lines */
{
cp = ++p; /* Just reset ptr */
continue;
}
/* Line has something but we didn't understand it */
err = "command line not in recognized format";
break;
default:
++p;
continue;
}
break;
}
if (!c || err) /* If hit end of input, or had error, */
break; /* stop now. */
c = *++p; /* Hit '=', move on to next char */
/*
** Allow /LANGUAGE-SWITCHES:" -x" to work
** This is done by scanning the argument string for spaces,
** and processing strings after the spaces as separate arguments.
**
** We can't just do the usual thing of breaking on slashes
** because we treat those as parts of the filenames, for UNIX
** pseudo-compatibility. This may change someday.
*/
while(1)
{
while(c == ' ')
c = *++p; /* Skip over initial spaces */
vecs[vcnt] = p; /* Remember this pointer */
while ((c != '\0') && (c != '\n') && (c != '\r')
&& (c != ' '))
{
c = *++p;
}
if (vecs[vcnt] != p) /* Did we get anything? */
{
*p = '\0'; /* Yes, ensure null-terminated */
if (vcnt >= MAXARGS-2)
{
err = "too many arguments! (internal error)";
break;
}
vcnt++; /* Welcome it to the ranks */
}
if (c != ' ')
break; /* Unless space, done */
} /* end inner loop (process line) */
if (!c || err)
break; /* If done or error, stop now */
++p; /* Move on to next char */
}
vecs[vcnt] = NULL; /* Make list end with null */
#if DEBUG_KCC /* 8/91 KCC size */
if (tdebug || err)
{
if (err)
jerr("Bad exec/monitor args - %s", err);
fprintf(outmsgs,"Contents of PRARG%%/TMPCOR file:\n");
fwrite(begp, sizeof(char), flen, outmsgs);
fprintf(outmsgs, "\nKCC args:");
for (c = 0; c < vcnt; ++c)
fprintf(outmsgs, " %s", vecs[c]);
fprintf(outmsgs, "\n");
if (err)
{
*cntp = 0;
*vecp = NULL;
return NULL;
}
}
#endif
*cntp = vcnt; /* Set return value = # of args */
*vecp = vecs;
return nextprog;
}
/* GTMPFILE - Get "temporary file" which contains arguments to program.
** See description of RPG argument passing.
*/
static char *
gtmpfile(char *name)
{
int nchars, i, c;
char *cp, *rp;
FILE *tf;
char tmpfile[20]; /* For DSK:nnnNAM.TMP */
int pid = 0;
/* See if TMPCOR UUO has anything for us */
{
INT argblk[2];
int junk, ret = 20; /* MUUO call sets ret */
char *tfbuf;
argblk[0] = sixbit(name) & ~RH; /* Set up TMPCOR arg blk */
argblk[1] = XWD(0, &junk-1);
#ifdef __COMPILER_KCC__
if (MUUO_ACVAL("TMPCOR", XWD(uuosym(".TCRRF"),argblk), &ret) > 0)
#endif
{
/* If we succeed, file exists and # wds is now in ret */
if ((tfbuf = calloc(1,ret*sizeof(int)+1)) == NULL)
{
jerr("Unable to alloc %d wds for TMP file %s", ret,tmpfile);
return NULL;
}
argblk[1] = XWD(-ret, ((int *)tfbuf)-1);
tfbuf[ret*sizeof(int)] = '\0'; /* Ensure null-terminated */
#ifdef __COMPILER_KCC__
if (MUUO_AC("TMPCOR", XWD(uuosym(".TCRDF"),argblk)) <= 0)
{
jerr("TMPCOR of %s failed on re-read", tmpfile);
return NULL;
}
return bp7(tfbuf); /* Return 7-bit byte ptr */
#endif
}
}
/* Try opening a .TMP file */
sprintf(tmpfile,
#if !__MSDOS__
/* KAR-3/92, use new _getpid() macro instead of routine in LIBC */
"DSK:%03.3d%.3s.TMP", ((pid == 0) ? _getpid(pid) : pid)
#else
"%03.3d%.3s.TMP", getpid()
#endif
, name);
if ((tf = fopen(tmpfile, "r")) == NULL)
return NULL;
#define TMPBSIZ (0400*sizeof(int)) /* # chars in incr blk */
nchars = TMPBSIZ;
rp = calloc(1,nchars);
cp = rp-1;
for (;;)
{
if (rp == NULL)
{
jerr("Unable to alloc %d chars for TMP file %s", nchars, tmpfile);
return NULL;
}
for (i = TMPBSIZ; --i >= 0;)
{
if ((c = getc(tf)) == EOF)
{
*++cp = 0; /* Fix up last char */
fclose(tf); /* Close the stream */
remove(tmpfile);
return rp; /* Won! */
}
*++cp = c;
}
rp = realloc(rp, (nchars + TMPBSIZ));
if (rp)
cp = rp + nchars - 1; /* Point to last char deposited */
nchars += TMPBSIZ;
}
}
/* STMPFILE - Set "temporary file" furnishing args to another program.
** See description of RPG argument passing.
*/
#if 0 /* 8/91 KCC size */
static int usetmpcor = 0; /* For time being, don't use it! */
#endif
static int *
stmpfile(char *name, char *str, char *nextprog)
{
FILE *tf;
char *cp = NULL;
char tmpfile[20]; /* For DSK:nnnNAM.TMP */
int nchs = strlen(str) + 1; /* total chs we'll need */
int pid = 0;
#if 0 /* 8/91 KCC size */
int nwds = (nchs+4)/5;
#endif
if (nextprog && *nextprog)
{
nchs += strlen(nextprog)+3; /* nextprog can add ! and CRLF */
if ((cp = calloc(1,nchs)) == NULL)
{
jerr("Cannot get memory for %s program args", name);
return NULL;
}
estrcpy(estrcpy(estrcpy(cp, str), nextprog), "!\r\n");
str = cp;
}
if (vrbld)
fprintf(outmsgs, "%s program args: \"%s\"\n", name, str);
#if 0 /* 8/91 KCC size */
/* Try invoking TMPCOR UUO */
if (usetmpcor)
{
INT argblk[2];
argblk[0] = sixbit(name) & ~RH; /* Set up TMPCOR arg blk */
argblk[1] = XWD(-nwds, ((int *)str)-1);
strcpy(bp7(str), str); /* Make 7-bit buff */
if (MUUO_AC("TMPCOR", XWD(uuosym(".TCRWF"),argblk)) > 0)
{
if (cp)
free(cp);
return NULL; /* Won, that's all! */
}
/* No tmpcor, must use file. Fix up buff ptr to reflect 7-bitness */
str = bp7(str);
}
#endif
/* Can't use PRARG% or TMPCOR, make .TMP file */
sprintf(tmpfile,
#if __MSDOS__
"%03.3d%.3s.TMP", getpid() & 0777,
#else
"DSK:%03.3d%.3s.TMP", ((pid == 0) ? _getpid(pid) : pid),
#endif
name);
if ((tf = fopen(tmpfile, "w")) == NULL)
{
errfopen("output TMP", tmpfile);
if (cp)
free(cp);
return NULL;
}
fputs(str, tf); /* Write out the string */
fclose(tf);
if (cp)
free(cp);
return NULL;
}
/* MAKTFLINK - Make argument "file" for LINK.
** This may be either a PRARG% block or TMPCOR-type file.
** Note that ALL of the argument array is examined, including
** the first one! This may be set by the mainline to something special.
*/
/* ofilename is the filename to save executable image to */
/* nextprog is the next program to chain thru, if any */
static
int *
maktflink (int argct, char **argvt, char *ofilename, char *nextprog)
{
extern char *libpath; /* Specified in CCDATA */
char *s, *t, *cp;
char module[FNAMESIZE], ext[FNAMESIZE];
char tmpfile[4000]; /* Very large buffer (sigh) */
char *libstart = NULL;
extern char *savofnam; /* Defined in CC */
/* Put together the command string for LINK */
t = tmpfile;
sprintf (t, "/define:$stksz:%d\n", stksz); /* define stack size */
t += strlen (t);
if (profbliss)
/*
* The BLISS profiler wants symbols high.
*/
t = estrcpy (t, "/symseg:high\n");
else
/*
* The C profilers need symbols low.
*/
switch (abs (debcsi))
{
case KCC_DBG_SPRF :
t = estrcpy (t, "SYS:KCCDBG/INCL:SPROF\n");
break;
case KCC_DBG_FPRF :
t = estrcpy (t, "SYS:KCCDBG/INCL:FNPROF\n");
break;
default:
break;
}
if (ldddtf) /* shall I link in DDT? */
t = estrcpy (t, "/test:DDT\n"); /* added 09/15/89 by MVS */
/* Do preliminary stuff */
#ifdef MULTI_SECTION /* FW 2A(51) */
if (ldpsectf) /* Hacking PSECTs? */
{
sprintf (t,"/SET:DATA:%o/LIMIT:DATA:%o/SET:CODE:%o/LIMIT:CODE:%o\n",
ldpsdata.ps_beg, ldpsdata.ps_lim,
ldpscode.ps_beg, ldpscode.ps_lim );
t += strlen (t);
t = estrcpy (t, "/REDIRECT:DATA:CODE/SYMSEG:PSECT:DATA\n");
}
if (ldextf) /* Hacking extended addressing? */
{
t = fstrcpy (t, libpath, "ckx"); /* -i Preload x-addr module */
*t++ = ',';
}
#endif
while (--argct >= 0) /* while we have arguments left */
{
s = *argvt++;
if (s == NULL)
continue; /* Skip over ex-switches */
if (*s == '-')
{
switch (*++s) /* Is this a still-alive switch? */
{
case 'l': /* -l Library search request */
if (libstart == NULL)
libstart = t;
t = estrcpy (fstrcpy (t, libpath, s+1), "/SEARCH");
break;
case 'L': /* -L= Pass string to loader */
if (*++s == '=')
{
if (libstart == NULL)
libstart = t;
t = estrcpy (t, s + 1); /* Just copy it directly! */
break;
}
/* If -L not followed by =, drop thru and complain */
default:
jerr ("Internal error: bad LINK sw \"%s\"", argvt[-1]);
}
}
else /* Assume it's a filename */
{
if ( (cp = fnparse (s, NULL, module, ext, NULL)) != NULL)
jerr ("Bad filename arg for LINK (%s): \"%s\"", cp, s);
else if (fnxisrel (ext)) /* If it's a .REL file, copy */
t = estrcpy (t, s); /* entire name */
else if (libstart == NULL)
t = estrcpy (t, (savofnam ? savofnam : module));
else
{
char *ptr;
int length = strlen (module) + 1;
/* ensure module(s) before libpath(s) */
for (ptr = t - 2; ptr >= libstart; ptr--)
ptr[length] = ptr[0]; /* shift over libpath (s) */
libstart = estrcpy (libstart, module); /* insert module */
*libstart++ = ',';
t = t + length - 1;
}
}
if (profbliss) /* for BLISS profiler */
t = estrcpy (t, "/locals"); /* added 09/15/89 by MVS */
*t++ = ',';
}
/* Add final commands to SAVE and GO */
t = estrcpy (estrcpy (estrcpy (t, "\n"), ofilename),
(!(ldddtf | debcsi | profbliss) ? "/SSA/RUN:MAKSHR" : "/SSA"));
estrcpy (t, "/GO\n");
if (vrbld)
fprintf (outmsgs, "Loader argument: \"%s\"\n", tmpfile);
return stmpfile ("LNK", tmpfile, nextprog);
}
/*
* RUNLINK - invoked when all compilation done.
* May invoke assembler, linker, or a "next program".
* Always chains through, never returns.
*/
void
runlink (int linkf, int argc, char** argv, char* ofilename, char* nextprog)
{
int* loc = NULL;
char* pname = NULL;
char mks_cmd_str[25];
/* Need to invoke assembler? */
if (asmtfptr)
{
pname = "MACRO"; /* Default */
stmpfile (pname, asmtfptr, /* Build TMPCOR or .TMP file */
(link ? "LINK" : nextprog));
}
/* Need to invoke loader? */
if (linkf)
{
loc = maktflink (argc, argv, ofilename, nextprog);
if (!(ldddtf | debcsi | profbliss))
{
sprintf (mks_cmd_str, "%s/o\n", ofilename);
stmpfile ("MKS", mks_cmd_str, NULL);
}
if (!pname)
pname = "LINK";
}
/*
* Check for case of chaining through random program. If so,
* we don't even bother setting the PRARG% block or TMPCOR file or
* anything, since all should already have been set up by the EXEC, and
* as long as we're chaining, the new program will have access to the same
* PRARG% block that we originally read. And of course if a disk .TMP
* file was used, that should already exist.
*/
if (!pname) /* If neither asm or link, */
{
if ((pname = nextprog) == NULL) /* must be chaining random prog. */
fatal ("Internal error: Chaining to no program!");
}
/* Invoke program!! */
/* Note that loc will be set only if a PRARG% block is being used. */
if (!hackfork (pname, loc, PRGBLEN, 1, 1))
fatal ("Could not chain to %s", pname); /* never to return */
}
static
int
hackfork (char* pgmname, int* argblk, int blklen, int stoffset, int chainf)
{
#if !__MSDOS__ // FW KCC-NT
struct
frkxec fx;
fflush (stdout); /* Make sure no output lost if chaining */
fx.fx_flags = FX_PGMSRCH | FX_WAIT
| (stoffset ? FX_STARTOFF : 0)
| (chainf ? FX_NOFORK : 0);
fx.fx_name = pgmname;
fx.fx_argv = fx.fx_envp = NULL;
fx.fx_startoff = stoffset;
fx.fx_blkadr = (char *) argblk;
fx.fx_blklen = blklen;
#ifdef __COMPILER_KCC__
return (forkexec (&fx) < 0 ? 0 : 1);
#else
return 1; /* assume OK */
#endif
#else
return 1;
#endif
}
/*
* FNPARSE - do simple parsing of filename; tries to find the module
* name component, and everything else is derived from that.
*/
char *
fnparse (char* source, char* dir, char* name, char* ext, char* suf)
{
#if __MSDOS__
#ifndef WIN32 // FW KCC-NT
int fnsplit (const char *source_path, char *suf_drive, char *dir,
char *name, char *ext);
fnsplit (source, suf, dir, name, ext);
return NULL; /* assume OK */
#else
char buf[256];
char* cp;
strcpy (buf, source); // Make a copy we can play with.
*suf = '\0'; // Not going to return this anyhow.
cp = strrchr (buf, '.'); // Is there an extension?
if (cp)
{
strcpy (ext, cp); // Yes: return it.
*cp = '\0'; // Delimit the basename.
}
else
{
*ext = '\0'; // No: tell the caller.
cp = buf + strlen (buf); // Set up to parse the basename.
}
do
{
--cp;
}
while ((cp >= buf) && (*cp != '\\') && (*cp != '/') && (*cp != ':'));
strcpy (name, ++cp);
*cp = '\0';
strcpy (dir, buf);
return NULL;
#endif
#else
register
char* cp = source;
char* start = cp;
int devf = 0;
int i;
*name = *ext = 0; /* Init all returned strings */
if (dir)
*dir = 0; /* optional args */
if (suf)
*suf = 0;
for (;;)
{
switch (*cp)
{
/* Check possible name terminators */
case '\0':
case '.':
break;
/* Check for directory start chars (must skip insides) */
#define DIRSTOP ']'
case '[':
if (start != cp) /* If collected a name, */
break; /* we've won, OK to stop! */
if ( (cp = strchr (cp, DIRSTOP)) == NULL)
return "malformed directory name";
/* Now drop through to handle as if randomly terminated */
/* Check for other random word terminators */
case DIRSTOP: /* Directory */
case '/': /* Un*x-simulation directory */
start = ++cp;
continue;
/* Do special check to permit "DEV:" alone to succeed */
case ':': /* Device */
if (start == source && !cp[1]) /* 1st & only word? */
{
++devf; /* Yep, set flag and stop */
break;
}
else if (start == source && stats_parse)
{
short pos = cp - source;
strncpy (dir,source,pos);
dir[pos]='\0';
}
start = ++cp; /* Nope, start new name search */
continue;
/* Check for string-type quote chars */
case '\"':
i = *cp++; /* Remember the char */
if ( (cp = strchr (cp, i)) == NULL)
return "unbalanced quoted name";
++cp; /* Include ending quote */
break; /* and assume this was filename */
/* Check for single-char quote chars */
case '\\': /* Backslash */
if (!cp[1]) /* Don't permit quoting NUL */
return "NUL char quoted";
++cp; /* Else OK, include quote char. */
/* Handle normal filename char */
default:
++cp;
continue;
}
break; /* If break from switch, stop loop. */
}
/* Found name if any, rest is easy */
i = cp - start;
if (i == 0) /* Find length of name */
return "no module name"; /* Ugh */
strncat (name, start, i); /* Return module name */
if (devf) /* Handle "FOO:" specially */
{
if (dir)
strcpy (dir, source);
return NULL;
}
if (start != source && dir && !stats_parse) /* Copy stuff preceding name */
strncat (dir, source, start-source);
/* Now check for extension. Slightly tricky. */
if (*cp == '.')
{
start = cp;
while (isalnum (*++cp))
; /* Scan over valid chars */
strncat (ext, start, cp-start); /* Copy what we got of extension */
}
if (*cp && suf) /* If anything left after ext, */
strcpy (suf, cp); /* just copy it all. */
return NULL; /* Say we won, no error msg! */
#endif /* not MSDOS */
}
int
fnxisrel (char* cp)
{
return (*cp == '.'
#if __MSDOS__
&& toupper (*++cp) == 'O'
&& toupper (*++cp) == 'B'
&& toupper (*++cp) == 'J'
#else
&& toupper (*++cp) == 'R'
&& toupper (*++cp) == 'E'
&& toupper (*++cp) == 'L'
#endif
&& ! (*++cp));
}
/* Misc auxiliaries */
/* ESTRCPY - like STRCPY but returns pointer to END of s1, not beginning.
** Copies string s2 to s1, including the terminating null.
** The returned pointer points to this null character which ends s1.
*/
char *
estrcpy (register char *s1, register char *s2)
{
if ( (*s1 = *s2) != '\0')
while ( (*++s1 = *++s2) != '\0')
;
return s1;
}
/* FSTRCPY - Filename string copy. Builds a filename string out of
** a name and prefix+suffix string, and copies it.
** Like estrcpy (), the returned pointer points to the END of the
** copied string.
*/
char *
fstrcpy (register char *d, register char *ps, register char *fname)
{
if (!ps || !*ps) /* If no prefix+suffix, */
return estrcpy (d, fname); /* just copy basic filename */
if ( (*d = *ps) != FILE_FIX_SEP_CHAR) /* If have a prefix, */
while ( (*++d = *++ps) != '\0' && *d != FILE_FIX_SEP_CHAR)
; /* copy it */
d = estrcpy (d, fname); /* Done, now copy filename */
return *ps ? estrcpy (d, ps+1) : d; /* then suffix, if any */
}
INT
sixbit (str)
register char *str;
{
register int i = 6*6, c;
register unsigned INT val = 0;
--str;
while (i > 0 && (c = *++str) != '\0')
val |= tosixbit ((char) c) << (i -= 6); // FW KCC-NT
return val;
}
INT
rad50 (str)