From 159b6f7429a125be9414384c930730cce491b6ec Mon Sep 17 00:00:00 2001
From: Romain Goyet <romain@goyet.com>
Date: Sun, 30 Jul 2017 22:13:13 +0200
Subject: [PATCH] [liba] Add strchr to string.h

Change-Id: I6651daa030ad6dc5e567bb78f2f22d48f07524aa
---
 liba/Makefile         |  1 +
 liba/include/string.h |  6 ++++--
 liba/src/strchr.c     | 11 +++++++++++
 3 files changed, 16 insertions(+), 2 deletions(-)
 create mode 100644 liba/src/strchr.c

diff --git a/liba/Makefile b/liba/Makefile
index 7b949d82f..c8e6f7031 100644
--- a/liba/Makefile
+++ b/liba/Makefile
@@ -16,6 +16,7 @@ objs += $(addprefix liba/src/, \
   memmove.o \
   memset.o \
   strcmp.o \
+  strchr.o \
   strlcpy.o \
   strlen.o \
   external/sqlite/mem5.o \
diff --git a/liba/include/string.h b/liba/include/string.h
index fedd91000..ff58e0c8a 100644
--- a/liba/include/string.h
+++ b/liba/include/string.h
@@ -10,9 +10,11 @@ int memcmp(const void * s1, const void * s2, size_t n);
 void * memcpy(void * dst, const void * src, size_t n);
 void * memmove(void * dst, const void * src, size_t n);
 void * memset(void * b, int c, size_t len);
-size_t strlen(const char * s);
-int strcmp(const char *s1, const char *s2);
+
+char * strchr(const char * s, int c);
+int strcmp(const char * s1, const char * s2);
 size_t strlcpy(char * dst, const char * src, size_t len);
+size_t strlen(const char * s);
 
 LIBA_END_DECLS
 
diff --git a/liba/src/strchr.c b/liba/src/strchr.c
new file mode 100644
index 000000000..b299d4c7a
--- /dev/null
+++ b/liba/src/strchr.c
@@ -0,0 +1,11 @@
+#include <string.h>
+
+char * strchr(const char * s, int c) {
+  while (*s != NULL && *s != c) {
+    s++;
+  }
+  if (*s == c) {
+    return (char *)s;
+  }
+  return NULL;
+}