Added code for nonstandard function strsep()

Signed-off-by: Dan Fandrich <dan@coneharvesters.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 33 insertions, 0 deletions

diff --git a/include/platform.h b/include/platform.h
index 4bd7a3d2e..0dadf42bd 100644
--- a/include/platform.h
+++ b/include/platform.h
@@ -16,6 +16,7 @@
 #define HAVE_SETBIT 1
 #define HAVE_STRCASESTR 1
 #define HAVE_STRCHRNUL 1
+#define HAVE_STRSEP 1
 #define HAVE_STRSIGNAL 1
 #define HAVE_VASPRINTF 1
 
@@ -353,6 +354,7 @@ typedef unsigned smalluint;
 # undef HAVE_SETBIT
 # undef HAVE_STRCASESTR
 # undef HAVE_STRCHRNUL
+# undef HAVE_STRSEP
 # undef HAVE_STRSIGNAL
 # undef HAVE_VASPRINTF
 #endif
@@ -391,6 +393,10 @@ extern char *strcasestr(const char *s, const char *pattern) FAST_FUNC;
 extern char *strchrnul(const char *s, int c) FAST_FUNC;
 #endif
 
+#ifndef HAVE_STRSEP
+extern char *strsep(char **stringp, const char *delim) FAST_FUNC;
+#endif
+
 #ifndef HAVE_STRSIGNAL
 /* Not exactly the same: instead of "Stopped" it shows "STOP" etc */
 # define strsignal(sig) get_signame(sig)
diff --git a/libbb/platform.c b/libbb/platform.c
index 17ad3f75a..7a8b17657 100644
--- a/libbb/platform.c
+++ b/libbb/platform.c
@@ -107,3 +107,30 @@ char* FAST_FUNC strcasestr(const char *s, const char *pattern)
         return 0;
 }
 #endif
+
+#ifndef HAVE_STRSEP
+/* Copyright (C) 2004 Free Software Foundation, Inc. */
+char* FAST_FUNC strsep(char **stringp, const char *delim)
+{
+        char *start = *stringp;
+        char *ptr;
+
+        if (!start)
+                return NULL;
+
+        if (!*delim)
+                ptr = start + strlen(start);
+        else {
+                ptr = strpbrk(start, delim);
+                if (!ptr) {
+                        *stringp = NULL;
+                        return start;
+                }
+        }
+
+        *ptr = '\0';
+        *stringp = ptr + 1;
+
+        return start;
+}
+#endif