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#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include "cpp.h"
extern int getopt(int, char *const *, const char *);
extern char *optarg, rcsid[];
extern int optind;
int verbose;
int Mflag; /* only print active include files */
char *objname; /* "src.$O: " */
int Cplusplus = 1;
void
setup(int argc, char **argv)
{
int c, fd, i;
char *fp, *dp;
Tokenrow tr;
extern void setup_kwtab(void);
setup_kwtab();
while ((c = getopt(argc, argv, "MNOVv+I:D:U:F:lg")) != -1)
switch (c) {
case 'N':
for (i=0; i<NINCLUDE; i++)
if (includelist[i].always==1)
includelist[i].deleted = 1;
break;
case 'I':
appendDirToIncludeList( optarg );
break;
case 'D':
case 'U':
setsource("<cmdarg>", -1, optarg);
maketokenrow(3, &tr);
gettokens(&tr, 1);
doadefine(&tr, c);
unsetsource();
break;
case 'M':
Mflag++;
break;
case 'v':
fprintf(stderr, "%s %s\n", argv[0], rcsid);
break;
case 'V':
verbose++;
break;
case '+':
Cplusplus++;
break;
default:
break;
}
dp = ".";
fp = "<stdin>";
fd = 0;
if (optind<argc) {
dp = basepath( argv[optind] );
fp = (char*)newstring((uchar*)argv[optind], strlen(argv[optind]), 0);
if ((fd = open(fp, 0)) <= 0)
error(FATAL, "Can't open input file %s", fp);
}
if (optind+1<argc) {
int fdo = creat(argv[optind+1], 0666);
if (fdo<0)
error(FATAL, "Can't open output file %s", argv[optind+1]);
dup2(fdo, 1);
}
if(Mflag)
setobjname(fp);
includelist[NINCLUDE-1].always = 0;
includelist[NINCLUDE-1].file = dp;
setsource(fp, fd, NULL);
}
char *basepath( char *fname )
{
char *dp = ".";
char *p;
if ((p = strrchr(fname, '/')) != NULL) {
int dlen = p - fname;
dp = (char*)newstring((uchar*)fname, dlen+1, 0);
dp[dlen] = '\0';
}
return dp;
}
/* memmove is defined here because some vendors don't provide it at
all and others do a terrible job (like calling malloc) */
// -- ouch, that hurts -- ln
#ifndef MACOS_X /* always use the system memmove() on Mac OS X. --ryan. */
#ifdef memmove
#undef memmove
#endif
void *
memmove(void *dp, const void *sp, size_t n)
{
unsigned char *cdp, *csp;
if (n<=0)
return 0;
cdp = dp;
csp = (unsigned char *)sp;
if (cdp < csp) {
do {
*cdp++ = *csp++;
} while (--n);
} else {
cdp += n;
csp += n;
do {
*--cdp = *--csp;
} while (--n);
}
return 0;
}
#endif
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