Work around -Wformat-truncation=/-Wformat-overflow= warnings (#356)

sprintf(3)/snprintf(3) destination buffers need to be large enough
so that gcc doesn't warn -Wformat-truncation= or -Wformat-overflow=
when source buffer size is 1024 bytes.

--
../test/test_syscalls.c:1445:47: warning: '%s' directive output may be truncated writing 1 byte into a region of size between 0 and 1023 [-Wformat-truncation=]
 #define PATH(p)  (snprintf(path, sizeof path, "%s/%s", testdir, p), path)
                                               ^~~~~~~
../test/test_syscalls.c:1458:19:
  res = mkdir(PATH("a"), 0755);
                   ~~~

Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>

diff --git a/test/test_syscalls.c b/test/test_syscalls.c
index cdf17d73018fc27c5d52a043e3da27235f6dc460..e9a51895ae0015a19d77503e9ffdace2bbd90881 100644 (file)
--- a/test/test_syscalls.c
+++ b/test/test_syscalls.c
@@ -19,13 +19,13 @@ static char testfile[1024];
 static char testfile2[1024];
 static char testdir[1024];
 static char testdir2[1024];
-static char subfile[1024];
+static char subfile[1280];
 
 static char testfile_r[1024];
 static char testfile2_r[1024];
 static char testdir_r[1024];
 static char testdir2_r[1024];
-static char subfile_r[1024];
+static char subfile_r[1280];
 
 static char testname[256];
 static char testdata[] = "abcdefghijklmnopqrstuvwxyz";
@@ -493,7 +493,7 @@ static int cleanup_dir(const char *path, const char **dir_files, int quiet)
 
        for (i = 0; dir_files[i]; i++) {
                int res;
-               char fpath[1024];
+               char fpath[1280];
                sprintf(fpath, "%s/%s", path, dir_files[i]);
                res = unlink(fpath);
                if (res == -1 && !quiet) {
@@ -526,7 +526,7 @@ static int create_dir(const char *path, const char **dir_files)
                return -1;
 
        for (i = 0; dir_files[i]; i++) {
-               char fpath[1024];
+               char fpath[1280];
                sprintf(fpath, "%s/%s", path, dir_files[i]);
                res = create_file(fpath, "", 0);
                if (res == -1) {
@@ -1447,7 +1447,7 @@ static int test_rename_dir_loop(void)
 #define PATH(p)                (snprintf(path, sizeof path, "%s/%s", testdir, p), path)
 #define PATH2(p)       (snprintf(path2, sizeof path2, "%s/%s", testdir, p), path2)
 
-       char path[1024], path2[1024];
+       char path[1280], path2[1280];
        int err = 0;
        int res;