-/* $Header: doarg.c,v 3.0.1.5 90/03/27 15:39:03 lwall Locked $
+/* $Header: doarg.c,v 3.0.1.6 90/08/09 02:48:38 lwall Locked $
*
* Copyright (c) 1989, Larry Wall
*
* as specified in the README file that comes with the perl 3.0 kit.
*
* $Log: doarg.c,v $
+ * Revision 3.0.1.6 90/08/09 02:48:38 lwall
+ * patch19: fixed double include of <signal.h>
+ * patch19: pack/unpack can now do native float and double
+ * patch19: pack/unpack can now have absolute and negative positioning
+ * patch19: pack/unpack can now have use * to specify all the rest of input
+ * patch19: unpack can do checksumming
+ * patch19: $< and $> better supported on machines without setreuid
+ * patch19: Added support for linked-in C subroutines
+ *
* Revision 3.0.1.5 90/03/27 15:39:03 lwall
* patch16: MSDOS support
* patch16: support for machines that can't cast negative floats to unsigned ints
#include "EXTERN.h"
#include "perl.h"
+#ifndef NSIG
#include <signal.h>
+#endif
extern unsigned char fold[];
if (spat->spat_regexp)
regfree(spat->spat_regexp);
spat->spat_regexp = regcomp(m,m+dstr->str_cur,
- spat->spat_flags & SPAT_FOLD,1);
+ spat->spat_flags & SPAT_FOLD);
if (spat->spat_flags & SPAT_KEEP) {
arg_free(spat->spat_runtime); /* it won't change, so */
spat->spat_runtime = Nullarg; /* no point compiling again */
long along;
unsigned long aulong;
char *aptr;
+ float afloat;
+ double adouble;
items = arglast[2] - sp;
st += ++sp;
while (pat < patend) {
#define NEXTFROM (items-- > 0 ? *st++ : &str_no)
datumtype = *pat++;
- if (isdigit(*pat)) {
+ if (*pat == '*') {
+ len = index("@Xxu",datumtype) ? 0 : items;
+ pat++;
+ }
+ else if (isdigit(*pat)) {
len = *pat++ - '0';
while (isdigit(*pat))
len = (len * 10) + (*pat++ - '0');
switch(datumtype) {
default:
break;
+ case '%':
+ fatal("% may only be used in unpack");
+ case '@':
+ len -= str->str_cur;
+ if (len > 0)
+ goto grow;
+ len = -len;
+ if (len > 0)
+ goto shrink;
+ break;
+ case 'X':
+ shrink:
+ str->str_cur -= len;
+ if (str->str_cur < 0)
+ fatal("X outside of string");
+ str->str_ptr[str->str_cur] = '\0';
+ break;
case 'x':
+ grow:
while (len >= 10) {
str_ncat(str,null10,10);
len -= 10;
case 'a':
fromstr = NEXTFROM;
aptr = str_get(fromstr);
+ if (pat[-1] == '*')
+ len = fromstr->str_cur;
if (fromstr->str_cur > len)
str_ncat(str,aptr,len);
else {
str_ncat(str,&achar,sizeof(char));
}
break;
+ /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
+ case 'f':
+ case 'F':
+ while (len-- > 0) {
+ fromstr = NEXTFROM;
+ afloat = (float)str_gnum(fromstr);
+ str_ncat(str, (char *)&afloat, sizeof (float));
+ }
+ break;
+ case 'd':
+ case 'D':
+ while (len-- > 0) {
+ fromstr = NEXTFROM;
+ adouble = (double)str_gnum(fromstr);
+ str_ncat(str, (char *)&adouble, sizeof (double));
+ }
+ break;
case 'n':
while (len-- > 0) {
fromstr = NEXTFROM;
str_ncat(str,(char*)&aptr,sizeof(char*));
}
break;
+ case 'u':
+ fromstr = NEXTFROM;
+ aptr = str_get(fromstr);
+ aint = fromstr->str_cur;
+ STR_GROW(str,aint * 4 / 3);
+ if (len <= 1)
+ len = 45;
+ else
+ len = len / 3 * 3;
+ while (aint > 0) {
+ int todo;
+
+ if (aint > len)
+ todo = len;
+ else
+ todo = aint;
+ doencodes(str, aptr, todo);
+ aint -= todo;
+ aptr += todo;
+ }
+ break;
}
}
STABSET(str);
}
#undef NEXTFROM
+doencodes(str, s, len)
+register STR *str;
+register char *s;
+register int len;
+{
+ char hunk[5];
+
+ *hunk = len + ' ';
+ str_ncat(str, hunk, 1);
+ hunk[4] = '\0';
+ while (len > 0) {
+ hunk[0] = ' ' + (077 & (*s >> 2));
+ hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
+ hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
+ hunk[3] = ' ' + (077 & (s[2] & 077));
+ str_ncat(str, hunk, 4);
+ s += 3;
+ len -= 3;
+ }
+ str_ncat(str, "\n", 1);
+}
+
void
do_sprintf(str,len,sarg)
register STR *str;
}
if (!stab)
fatal("Undefined subroutine called");
+ saveint(&wantarray);
+ wantarray = gimme;
sub = stab_sub(stab);
if (!sub)
fatal("Undefined subroutine \"%s\" called", stab_name(stab));
+ if (sub->usersub) {
+ st[sp] = arg->arg_ptr.arg_str;
+ if ((arg[2].arg_type & A_MASK) == A_NULL)
+ items = 0;
+ return sub->usersub(sub->userindex,sp,items);
+ }
if ((arg[2].arg_type & A_MASK) != A_NULL) {
savearray = stab_xarray(defstab);
stab_xarray(defstab) = afake(defstab, items, &st[sp+1]);
}
savelong(&sub->depth);
sub->depth++;
- saveint(&wantarray);
- wantarray = gimme;
if (sub->depth >= 2) { /* save temporaries on recursion? */
if (sub->depth == 100 && dowarn)
warn("Deep recursion on subroutine \"%s\"",stab_name(stab));
}
if (!stab)
fatal("Undefined subroutine called");
- sub = stab_sub(stab);
- if (!sub)
- fatal("Undefined subroutine \"%s\" called", stab_name(stab));
+ saveint(&wantarray);
+ wantarray = gimme;
/* begin differences */
str = stab_val(DBsub);
saveitem(str);
}
savelong(&sub->depth);
sub->depth++;
- saveint(&wantarray);
- wantarray = gimme;
if (sub->depth >= 2) { /* save temporaries on recursion? */
if (sub->depth == 100 && dowarn)
warn("Deep recursion on subroutine \"%s\"",stab_name(stab));
}
}
if (delaymagic > 1) {
+ if (delaymagic & DM_REUID) {
#ifdef SETREUID
- if (delaymagic & DM_REUID)
setreuid(uid,euid);
+#else
+ if (uid != euid || setuid(uid) < 0)
+ fatal("No setreuid available");
#endif
+ }
+ if (delaymagic & DM_REGID) {
#ifdef SETREGID
- if (delaymagic & DM_REGID)
setregid(gid,egid);
+#else
+ if (gid != egid || setgid(gid) < 0)
+ fatal("No setregid available");
#endif
+ }
}
delaymagic = 0;
localizing = FALSE;
retval = stab_xarray(arg[1].arg_ptr.arg_stab) != 0;
else if (type == O_HASH || type == O_LHASH)
retval = stab_xhash(arg[1].arg_ptr.arg_stab) != 0;
- else if (type == O_SUBR || type == O_DBSUBR)
- retval = stab_sub(arg[1].arg_ptr.arg_stab) != 0;
else if (type == O_ASLICE || type == O_LASLICE)
retval = stab_xarray(arg[1].arg_ptr.arg_stab) != 0;
else if (type == O_HSLICE || type == O_LHSLICE)
retval = stab_xhash(arg[1].arg_ptr.arg_stab) != 0;
+ else if (type == O_SUBR || type == O_DBSUBR)
+ retval = stab_sub(arg[1].arg_ptr.arg_stab) != 0;
else
retval = FALSE;
str_numset(str,(double)retval);
projects / p5sagit/p5-mst-13.2.git / blobdiff