From e9c805ffdec34c66fdc751ea222fa40678c71351 Mon Sep 17 00:00:00 2001
From: Nikias Bassen
Date: Fri, 24 Feb 2017 22:10:56 +0100
Subject: common: Add strsep() implementation for platforms lacking it

---
 configure.ac |  7 +++++++
 src/common.c | 17 +++++++++++++++++
 src/common.h |  8 ++++++++
 3 files changed, 32 insertions(+)

diff --git a/configure.ac b/configure.ac
index d36cc67..2b31499 100644
--- a/configure.ac
+++ b/configure.ac
@@ -59,6 +59,13 @@ case "$host_os" in
 	;;
 esac
 
+AC_CHECK_FUNCS([strsep strcspn])
+if test x$ac_cv_func_strsep != xyes; then
+  if test x$ac_cv_func_strcspn != xyes; then
+    AC_MSG_ERROR([You need either strsep or strcspn to build $PACKAGE])
+  fi
+fi
+
 AC_SUBST(GLOBAL_CFLAGS)
 AC_SUBST(AC_LDFLAGS)
 AC_SUBST(AC_LDADD)
diff --git a/src/common.c b/src/common.c
index 691137d..7bbe33a 100644
--- a/src/common.c
+++ b/src/common.c
@@ -21,6 +21,10 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -282,3 +286,16 @@ void idevicerestore_progress(struct idevicerestore_client_t* client, int step, d
 		}
 	}
 }
+
+#ifndef HAVE_STRSEP
+char* strsep(char** strp, const char* delim)
+{
+        char *p, *s;
+        if (strp == NULL || *strp == NULL || **strp == '\0') return NULL;
+        s = *strp;
+        p = s + strcspn(s, delim);
+        if (*p != '\0') *p++ = '\0';
+        *strp = p;
+        return s;
+}
+#endif
diff --git a/src/common.h b/src/common.h
index 8340d03..5f1d763 100644
--- a/src/common.h
+++ b/src/common.h
@@ -28,6 +28,10 @@
 extern "C" {
 #endif
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include <plist/plist.h>
 #include <libirecovery.h>
 
@@ -131,6 +135,10 @@ int mkdir_with_parents(const char *dir, int mode);
 
 void idevicerestore_progress(struct idevicerestore_client_t* client, int step, double progress);
 
+#ifndef HAVE_STRSEP
+char* strsep(char** strp, const char* delim);
+#endif
+
 #ifdef __cplusplus
 }
 #endif
-- 
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