blob: c8e26c46f26f3f405cc37e681e1c99a6d875ae56 (
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--- a/backport-include/linux/string.h
+++ b/backport-include/linux/string.h
@@ -25,4 +25,8 @@ extern void *memdup_user_nul(const void
void memzero_explicit(void *s, size_t count);
#endif
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,3,0))
+ssize_t strscpy(char *dest, const char *src, size_t count);
+#endif
+
#endif /* __BACKPORT_LINUX_STRING_H */
--- a/compat/backport-4.3.c
+++ b/compat/backport-4.3.c
@@ -57,3 +57,29 @@ void seq_hex_dump(struct seq_file *m, co
}
}
EXPORT_SYMBOL_GPL(seq_hex_dump);
+
+ssize_t strscpy(char *dest, const char *src, size_t count)
+{
+ long res = 0;
+
+ if (count == 0)
+ return -E2BIG;
+
+ while (count) {
+ char c;
+
+ c = src[res];
+ dest[res] = c;
+ if (!c)
+ return res;
+ res++;
+ count--;
+ }
+
+ /* Hit buffer length without finding a NUL; force NUL-termination. */
+ if (res)
+ dest[res-1] = '\0';
+
+ return -E2BIG;
+}
+EXPORT_SYMBOL_GPL(strscpy);
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