Subversion Repositories planix.SVN

#include "sam.h"

static int inerror=FALSE;

/*
 * A reasonable interface to the system calls
 */

void
resetsys(void)
{
        inerror = FALSE;
}

void
syserror(char *a)
{
        char buf[ERRMAX];

        if(!inerror){
                inerror=TRUE;
                errstr(buf, sizeof buf);
                dprint("%s: ", a);
                error_s(Eio, buf);
        }
}

int
Read(int f, void *a, int n)
{
        char buf[ERRMAX];

        if(read(f, (char *)a, n)!=n) {
                if (lastfile)
                        lastfile->rescuing = 1;
                errstr(buf, sizeof buf);
                if (downloaded)
                        fprint(2, "read error: %s\n", buf);
                rescue();
                exits("read");
        }
        return n;
}

int
Write(int f, void *a, int n)
{
        int m;

        if((m=write(f, (char *)a, n))!=n)
                syserror("write");
        return m;
}

void
Seek(int f, long n, int w)
{
        if(seek(f, n, w)==-1)
                syserror("seek");
}