apathmax

util/apathmax.c

@@ -0,0 +1,24 @@
+/* See LICENSE file for copyright and license details. */
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "../util.h"
+
+void
+apathmax(char **p, long *size)
+{
+#ifdef PATH_MAX
+	*size = PATH_MAX;
+#else
+	errno = 0;
+	if((*size = pathconf(".", _PC_PATH_MAX)) == -1) {
+		if(errno == 0)
+			*size = BUFSIZ;
+		else
+			eprintf("pathconf:");
+	}
+#endif
+	if(!(*p = malloc(*size)))
+		eprintf("malloc:");
+}