getargs.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.1 */
#include "uucp.h"
#include <rpc/trace.h>
/*
* generate a vector of pointers (arps) to the
* substrings in string "s".
* Each substring is separated by blanks and/or tabs.
* s -> string to analyze -- s GETS MODIFIED
* arps -> array of pointers -- count + 1 pointers
* count -> max number of fields
* returns:
* i -> # of subfields
* arps[i] = NULL
*/
GLOBAL int
getargs(s, arps, count)
register char *s, *arps[];
register int count;
{
register int i;
trace2(TR_getargs, 0, count);
for (i = 0; i < count; i++) {
while (*s == ' ' || *s == '\t')
*s++ = '\0';
if (*s == '\n')
*s = '\0';
if (*s == '\0')
break;
arps[i] = s++;
while (*s != '\0' && *s != ' '
&& *s != '\t' && *s != '\n')
s++;
}
arps[i] = NULL;
trace1(TR_getargs, 1);
return (i);
}
/*
* bsfix(args) - remove backslashes from args
*
* \123 style strings are collapsed into a single character
* \000 gets mapped into \N for further processing downline.
* \ at end of string is removed
* \t gets replaced by a tab
* \n gets replaced by a newline
* \r gets replaced by a carriage return
* \b gets replaced by a backspace
* \s gets replaced by a blank
* any other unknown \ sequence is left intact for further processing
* downline.
*/
GLOBAL void
bsfix (args)
char **args;
{
register char *str, *to, *cp;
register int num;
trace1(TR_bsfix, 0);
for (; *args; args++) {
str = *args;
for (to = str; *str; str++) {
if (*str == '\\') {
if (str[1] == '\0')
break;
switch (*++str) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
for ( num = 0, cp = str
; cp - str < 3
; cp++
) {
if ('0' <= *cp && *cp <= '7') {
num <<= 3;
num += *cp - '0';
}
else
break;
}
if (num == 0) {
*to++ = '\\';
*to++ = 'N';
} else
*to++ = (char) num;
str = cp-1;
break;
case 't':
*to++ = '\t';
break;
case 's':
*to++ = ' ';
break;
case 'n':
*to++ = '\n';
break;
case 'r':
*to++ = '\r';
break;
case 'b':
*to++ = '\b';
break;
default:
*to++ = '\\';
*to++ = *str;
break;
}
}
else
*to++ = *str;
}
*to = '\0';
}
trace1(TR_bsfix, 1);
return;
}