source: buchla-68k/orig/LATTICE/PERROR.C

/*
        perror.c -- print a system error message
        Version 1 -- 1988-05-02
*/

#define CII

/*
 * Print the error indicated
 * in the cerror cell.
 */

#ifdef  CII
#define void    int
extern int errno, s_nerr, strlen(), write();
extern char *s_errl[];
#else
extern int errno, sys_nerr, strlen(), write();
extern char *sys_errlist[];
#endif

void
perror(s)
char    *s;
{
        register char *c;
        register int n;

        c = "Unknown error";

#ifdef  CII
        if(errno < s_nerr)
                c = s_errl[errno];
#else
        if(errno < sys_nerr)
                c = sys_errlist[errno];
#endif

        n = strlen(s);

        if(n) {
                (void) write(2, s, (unsigned)n);
                (void) write(2, ": ", 2);
        }

        (void) write(2, c, (unsigned)strlen(c));
        (void) write(2, "\n", 1);
}