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

/* @(#)perror.c	4.1 (Berkeley) %G% */
/*
 * 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);
}
Commit	Line	Data
716337de BJ	1	/* @(#)perror.c 4.1 (Berkeley) %G% */
	2	/*
	3	* Print the error indicated
	4	* in the cerror cell.
	5	*/
	6
	7	int errno;
	8	int sys_nerr;
	9	char *sys_errlist[];
	10	perror(s)
	11	char *s;
	12	{
	13	register char *c;
	14	register n;
	15
	16	c = "Unknown error";
	17	if(errno < sys_nerr)
	18	c = sys_errlist[errno];
	19	n = strlen(s);
	20	if(n) {
	21	write(2, s, n);
	22	write(2, ": ", 2);
	23	}
	24	write(2, c, strlen(c));
	25	write(2, "\n", 1);
	26	}