remove incorrect cancellation points from realpath

src/misc/realpath.c

 #include <stdlib.h>
-#include <stdio.h>
 #include <limits.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <errno.h>
 #include <unistd.h>
 #include <string.h>
+#include "syscall.h"
 
 void __procfdname(char *, unsigned);
 
@@ -22,7 +22,7 @@ char *realpath(const char *restrict filename, char *restrict resolved)
 		return 0;
 	}
 
-	fd = open(filename, O_PATH|O_NONBLOCK|O_CLOEXEC);
+	fd = syscall(SYS_open, filename, O_PATH|O_NONBLOCK|O_CLOEXEC|O_LARGEFILE);
 	if (fd < 0) return 0;
 	__procfdname(buf, fd);
 
@@ -37,9 +37,9 @@ char *realpath(const char *restrict filename, char *restrict resolved)
 		goto err;
 	}
 
-	close(fd);
+	__syscall(SYS_close, fd);
 	return resolved ? strcpy(resolved, tmp) : strdup(tmp);
 err:
-	close(fd);
+	__syscall(SYS_close, fd);
 	return 0;
 }