[hackers] [scc] [libc] Add strchr() || Roberto E. Vargas Caballero

[git]

commit 3f51e82f5bad60cd837488bd5e1a8badd3441835
Author:     Roberto E. Vargas Caballero <k...@shike2.com>
AuthorDate: Thu Feb 16 21:17:30 2017 +0100
Commit:     Roberto E. Vargas Caballero <k...@shike2.com>
CommitDate: Thu Feb 16 21:17:30 2017 +0100

    [libc] Add strchr()

diff --git a/libc/src/Makefile b/libc/src/Makefile
index 8a863fa..613cd0b 100644
--- a/libc/src/Makefile
+++ b/libc/src/Makefile
@@ -1,7 +1,7 @@
 # See LICENSE file for copyright and license details.
 .POSIX:
 
-LIBCOBJ = assert.o strcpy.o strcmp.o strlen.o
+LIBCOBJ = assert.o strcpy.o strcmp.o strlen.o strchr.o
 
 all: libc.a
 
diff --git a/libc/src/strchr.c b/libc/src/strchr.c
new file mode 100644
index 0000000..16aa47c
--- /dev/null
+++ b/libc/src/strchr.c
@@ -0,0 +1,11 @@
+/* See LICENSE file for copyright and license details. */
+
+#include <string.h>
+
+char *
+strchr(const char *s, int c)
+{
+       while (*s && *s != c)
+               ++s;
+       return (*s) ? (char *) s : NULL;
+}