[PATCH] powerpc: Add strne2a() to convert a string from EBCDIC to ASCII

Add strne2a() which converts a string from EBCDIC to ASCII.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2 files changed, 12 insertions, 0 deletions

diff --git a/arch/powerpc/lib/e2a.c b/arch/powerpc/lib/e2a.c
index 4f88f4cc21e8..4b72ed8fd50e 100644
--- a/arch/powerpc/lib/e2a.c
+++ b/arch/powerpc/lib/e2a.c
@@ -103,4 +103,14 @@ unsigned char e2a(unsigned char x)
 }
 EXPORT_SYMBOL(e2a);
 
+unsigned char* strne2a(unsigned char *dest, const unsigned char *src, size_t n)
+{
+        int i;
+
+        n = strnlen(src, n);
 
+        for (i = 0; i < n; i++)
+                dest[i] = e2a(src[i]);
+
+        return dest;
+}
diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h
index 41b7a5b3d701..65f5a7b2646b 100644
--- a/include/asm-powerpc/system.h
+++ b/include/asm-powerpc/system.h
@@ -171,6 +171,8 @@ extern u32 booke_wdt_period;
 
 /* EBCDIC -> ASCII conversion for [0-9A-Z] on iSeries */
 extern unsigned char e2a(unsigned char);
+extern unsigned char* strne2a(unsigned char *dest,
+                const unsigned char *src, size_t n);
 
 struct device_node;
 extern void note_scsi_host(struct device_node *, void *);