[Spice-devel] [usbredir v2 PATCH] usbredirfilter: Win32: implement strtok_r to be used by windows (win_strtok_r)

[Uri Lublin]

mingw imlpements neigther strtok_r nor strtok_s.

So here is a simple implementation of strtok_r (for windows).
It assumes the delimiter is a single character, which is
good enough for usbredirfilter.
---
 usbredirparser/usbredirfilter.c |   47 +++++++++++++++++++++++++++++++++++++++
 1 files changed, 47 insertions(+), 0 deletions(-)

diff --git a/usbredirparser/usbredirfilter.c b/usbredirparser/usbredirfilter.c
index b74c921..df48acb 100644
--- a/usbredirparser/usbredirfilter.c
+++ b/usbredirparser/usbredirfilter.c
@@ -23,6 +23,53 @@
 #include <string.h>
 #include <errno.h>
 
+#ifdef WIN32
+#define strtok_r  win_strtok_r
+
+/*
+ *  strtok_r like implementation for windows (mingw).
+ *
+ *  Only the first character of delim is used as a delimiter
+ */
+char *win_strtok_r(char *str, const char *delim, char **state)
+{
+    const char d = delim[0];
+    char *p;
+    int found = 0;
+
+    /* sanity checks */
+    if ((delim == NULL) || (state == NULL))
+	return NULL;
+
+    if (str == NULL) {
+	str = *state;
+    }
+
+    if (str == NULL) {
+	return NULL;
+    }
+
+    for (p=str; *p ; p++) {
+	if (*p == d) {
+	    found = 1;
+	    *p++ = '\0';
+	    while (*p && *p==d) /* skip all delimiters */
+		p++;
+	    break;
+	}
+    }
+
+    *state = found ? p : NULL;
+
+    /* do not return empty strings */
+    if (!*str)
+        return NULL;
+
+    return str;
+}
+
+#endif
+
 #include "usbredirfilter.h"
 
 int usbredirfilter_string_to_rules(
-- 
1.7.1