BSD 4 development

[unix-history] / usr / src / libc / gen / perror.c

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

int     errno;
int     sys_nerr;
char    *sys_errlist[];
perror(s)
char *s;
{
       register char *c;
       register n;

       c = "Unknown error";
       if(errno < sys_nerr)
               c = sys_errlist[errno];
       n = strlen(s);
       if(n) {
               write(2, s, n);
               write(2, ": ", 2);
       }
       write(2, c, strlen(c));
       write(2, "\n", 1);
}