fixes from rick adams

[unix-history] / usr / src / usr.bin / uucp / libuu / getprm.c

#ifndef lint
static char sccsid[] = "@(#)getprm.c    5.3 (Berkeley) %G%";
#endif

#include "uucp.h"

#define LQUOTE  '('
#define RQUOTE ')'
#define NOSYSPART       0
#define HASSYSPART      1

/*LINTLIBRARY*/

/*
*      get next parameter from s
*
*      return - pointer to next character in s
*/

char *
getprm(s, prm)
register char *s, *prm;
{
       register char *c;

       while (*s == ' ' || *s == '\t' || *s == '\n')
               s++;

       *prm = '\0';
       if (*s == '\0')
               return NULL;

       if (*s == '>' || *s == '<' || *s == '|'
         || *s == ';' || *s == '&') {
               *prm++ = *s++;
               *prm = '\0';
               return s;
       }

       /* look for quoted argument */
       if (*s == LQUOTE) {
               if ((c = index(s + 1, RQUOTE)) != NULL) {
                       c++;
                       while (c != s)
                               *prm++ = *s++;
                       *prm = '\0';
                       return s;
               }
       }

       /* look for `  ` string */
       if (*s == '`') {
               if ((c = index(s + 1, '`')) != NULL) {
                       c++;
                       while (c != s)
                               *prm++ = *s++;
                       *prm = '\0';
                       return s;
               }
       }

       while (*s != ' ' && *s != '\t' && *s != '<'
               && *s != '>' && *s != '|' && *s != '\0'
               && *s != '&' && *s != ';' && *s != '\n')
               *prm++ = *s++;
       *prm = '\0';

       return s;
}

/*
*      split into system and file part
*
*      return codes:
*              NOSYSPART
*              HASSYSPART
*/

split(name, sys, rest)
register char *name, *rest;
char *sys;
{
       register char *c;
       register int i;

       if (*name == LQUOTE) {
               if ((c = index(name + 1, RQUOTE)) != NULL) {
               /* strip off quotes */
                       name++;
                       while (c != name)
                               *rest++ = *name++;
                       *rest = '\0';
                       *sys = '\0';
                       return NOSYSPART;
               }
       }

       if ((c = index(name, '!')) == NULL) {
               strcpy(rest, name);
               *sys = '\0';
               return NOSYSPART;
       }

       *c++ = '\0';
       strncpy(sys, name, MAXBASENAME);
       sys[MAXBASENAME] = '\0';

       strcpy(rest, c);
       return HASSYSPART;
}