view ffstools/cal2text/dircheck.c @ 185:3eb53be9e667

fc-vcxo-param: use M_PI constant instead of acos(-1.0)
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 13 Apr 2017 05:13:45 +0000
parents d41edd329670
children
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/*
 * Both arguments to fc-cal2text must name directories that already exist.
 * Here we implement the check for this requirement.
 */

#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

check_directory_exists(pathname)
	char *pathname;
{
	struct stat st;

	if (stat(pathname, &st) < 0) {
		perror(pathname);
		exit(1);
	}
	if (!S_ISDIR(st.st_mode)) {
		fprintf(stderr, "error: %s is not a directory\n", pathname);
		exit(1);
	}
	return(0);
}