[PATCH 1/19] ppc64: Add strne2a() to convert a string from EBCDIC to ASCII

[Michael Ellerman]

This patch adds strne2a() which converts a string from EBCDIC to ASCII.

---

 arch/ppc64/lib/e2a.c       |   10 ++++++++++
 include/asm-ppc64/system.h |    2 ++
 2 files changed, 12 insertions(+)

Index: work/arch/ppc64/lib/e2a.c
===================================================================
--- work.orig/arch/ppc64/lib/e2a.c
+++ work/arch/ppc64/lib/e2a.c
@@ -105,4 +105,14 @@ 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 = min(n, strlen(src));
+
+	for (i = 0; i < n; i++)
+		dest[i] = e2a(src[i]);
+
+	return dest;
+}
Index: work/include/asm-ppc64/system.h
===================================================================
--- work.orig/include/asm-ppc64/system.h
+++ work/include/asm-ppc64/system.h
@@ -132,6 +132,8 @@ extern int mem_init_done;	/* set on boot
 
 /* 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);
 
 extern struct task_struct *__switch_to(struct task_struct *,
 				       struct task_struct *);