tools: s/LXC_NUMSTRLEN64/INTTYPE_TO_STRLEN()/

src/lxc/Makefile.am

@@ -302,6 +302,7 @@ lxc_freeze_SOURCES = tools/lxc_freeze.c \
 lxc_info_SOURCES = tools/lxc_info.c \
 		   tools/arguments.c tools/arguments.h
 lxc_monitor_SOURCES = tools/lxc_monitor.c \
+		      macro.h \
 		      tools/arguments.c tools/arguments.h
 lxc_ls_SOURCES = tools/lxc_ls.c \
 		 tools/arguments.c tools/arguments.h

src/lxc/tools/lxc_monitor.c

@@ -47,6 +47,7 @@
 #include "af_unix.h"
 #include "arguments.h"
 #include "log.h"
+#include "macro.h"
 #include "monitor.h"
 #include "state.h"
 #include "utils.h"
@@ -156,7 +157,7 @@ static int lxc_tool_monitord_spawn(const char *lxcpath)
 {
 	int ret;
 	int pipefd[2];
-	char pipefd_str[LXC_NUMSTRLEN64];
+	char pipefd_str[INTTYPE_TO_STRLEN(int)];
 	pid_t pid1, pid2;
 
 	char *const args[] = {
@@ -223,8 +224,8 @@ static int lxc_tool_monitord_spawn(const char *lxcpath)
 
 	close(pipefd[0]);
 
-	ret = snprintf(pipefd_str, LXC_NUMSTRLEN64, "%d", pipefd[1]);
-	if (ret < 0 || ret >= LXC_NUMSTRLEN64) {
+	ret = snprintf(pipefd_str, INTTYPE_TO_STRLEN(int), "%d", pipefd[1]);
+	if (ret < 0 || ret >= INTTYPE_TO_STRLEN(int)) {
 		ERROR("Failed to create pid argument to pass to monitord");
 		_exit(EXIT_FAILURE);
 	}