xfs_fsr: convert fsrallfs to use time_t instead of int

Convert howlong argument to a time_t as it's truncated to int, but in
practice this is not an issue as duration will never be this big.

Add check for howlong to fit into int (printf can use int format
specifier). Even longer interval doesn't make much sense.

Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrey Albershteyn <aalbersh@redhat.com>

diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c
index 3077d8f4ef46a0cb0e97e61045ae5438d3ae866d..02d61ef9399aa4841d130de77308a70eae719b95 100644 (file)
--- a/fsr/xfs_fsr.c
+++ b/fsr/xfs_fsr.c
@@ -72,7 +72,7 @@ static int  packfile(char *fname, char *tname, int fd,
 static void fsrdir(char *dirname);
 static int  fsrfs(char *mntdir, xfs_ino_t ino, int targetrange);
 static void initallfs(char *mtab);
-static void fsrallfs(char *mtab, int howlong, char *leftofffile);
+static void fsrallfs(char *mtab, time_t howlong, char *leftofffile);
 static void fsrall_cleanup(int timeout);
 static int  getnextents(int);
 int xfsrtextsize(int fd);
@@ -165,6 +165,12 @@ main(int argc, char **argv)
                        break;
                case 't':
                        howlong = atoi(optarg);
+                       if (howlong > INT_MAX) {
+                               fprintf(stderr,
+                               _("%s: the maximum runtime is %d seconds.\n"),
+                                       optarg, INT_MAX);
+                               exit(1);
+                       }
                        break;
                case 'f':
                        leftofffile = optarg;
@@ -387,7 +393,7 @@ initallfs(char *mtab)
 }
 
 static void
-fsrallfs(char *mtab, int howlong, char *leftofffile)
+fsrallfs(char *mtab, time_t howlong, char *leftofffile)
 {
        int fd;
        int error;