This function is just calling arg_strtou64() and then do extra
UINT32_MAX check.
Signed-off-by: Qu Wenruo <quwenruo@xxxxxxxxxxxxxx>
---
utils-lib.c | 15 +++++++++++++++
utils.h | 1 +
2 files changed, 16 insertions(+)
diff --git a/utils-lib.c b/utils-lib.c
index 044f93fc..544f6750 100644
--- a/utils-lib.c
+++ b/utils-lib.c
@@ -44,6 +44,21 @@ u64 arg_strtou64(const char *str)
}
/*
+ * u32 version of arg_strtou*()
+ */
+u32 arg_strtou32(const char *str)
+{
+ u64 tmp;
+
+ tmp = arg_strtou64(str);
+ if (tmp >= UINT32_MAX) {
+ fprintf(stderr, "ERROR: %s is too large.\n", str);
+ exit(1);
+ }
+ return (u32)tmp;
+}
+
+/*
* For a given:
* - file or directory return the containing tree root id
* - subvolume return its own tree id
diff --git a/utils.h b/utils.h
index 24d0a200..f6deb26c 100644
--- a/utils.h
+++ b/utils.h
@@ -94,6 +94,7 @@ const char *pretty_size_mode(u64 size, unsigned mode);
u64 parse_size(char *s);
u64 parse_qgroupid(const char *p);
u64 arg_strtou64(const char *str);
+u32 arg_strtou32(const char *str);
int arg_copy_path(char *dest, const char *src, int destlen);
int open_file_or_dir(const char *fname, DIR **dirstream);
int open_file_or_dir3(const char *fname, DIR **dirstream, int open_flags);
--
2.12.2
--
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