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#include "lib.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "sys9.h"
#include "dir.h"
static char qsep[] = " \t\r\n";
static char*
qtoken(char *s)
{
int quoting;
char *t;
quoting = 0;
t = s; /* s is output string, t is input string */
while(*t!='\0' && (quoting || strchr(qsep, *t)==nil)){
if(*t != '\''){
*s++ = *t++;
continue;
}
/* *t is a quote */
if(!quoting){
quoting = 1;
t++;
continue;
}
/* quoting and we're on a quote */
if(t[1] != '\''){
/* end of quoted section; absorb closing quote */
t++;
quoting = 0;
continue;
}
/* doubled quote; fold one quote into two */
t++;
*s++ = *t++;
}
if(*s != '\0'){
*s = '\0';
if(t == s)
t++;
}
return t;
}
static int
tokenize(char *s, char **args, int maxargs)
{
int nargs;
for(nargs=0; nargs<maxargs; nargs++){
while(*s!='\0' && strchr(qsep, *s)!=nil)
s++;
if(*s == '\0')
break;
args[nargs] = s;
s = qtoken(s);
}
return nargs;
}
Waitmsg*
_WAIT(void)
{
int n, l;
char buf[512], *fld[5];
Waitmsg *w;
n = _AWAIT(buf, sizeof buf-1);
if(n < 0)
return nil;
buf[n] = '\0';
if(tokenize(buf, fld, 5) != 5){
strcpy(buf, "couldn't parse wait message");
_ERRSTR(buf, sizeof buf);
return nil;
}
l = strlen(fld[4])+1;
w = malloc(sizeof(Waitmsg)+l);
if(w == nil)
return nil;
w->pid = atoi(fld[0]);
w->time[0] = atoi(fld[1]);
w->time[1] = atoi(fld[2]);
w->time[2] = atoi(fld[3]);
w->msg = (char*)&w[1];
memmove(w->msg, fld[4], l);
return w;
}
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