X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fgallium%2Fauxiliary%2Futil%2Fu_string.h;h=15630ad0791bf0947903267e9639bebe08bad96d;hb=17a574d7cd8c541c902cc0da40362a32d965e77b;hp=73c88d87b4c643c79d815ea674813b6a5b3f2cc3;hpb=2f9b1b9cc20f079cb46bbbcc9db09880070e4de9;p=mesa.git

diff --git a/src/gallium/auxiliary/util/u_string.h b/src/gallium/auxiliary/util/u_string.h
index 73c88d87b4c..15630ad0791 100644
--- a/src/gallium/auxiliary/util/u_string.h
+++ b/src/gallium/auxiliary/util/u_string.h
@@ -28,14 +28,14 @@
 /**
  * @file
  * Platform independent functions for string manipulation.
- * 
+ *
  * @author Jose Fonseca <jrfonseca@tungstengraphics.com>
  */
 
 #ifndef U_STRING_H_
 #define U_STRING_H_
 
-#ifndef WIN32
+#if !defined(_WIN32) && !defined(XF86_LIBC_H)
 #include <stdio.h>
 #endif
 #include <stddef.h>
@@ -48,19 +48,34 @@
 extern "C" {
 #endif
 
-   
-#ifdef WIN32
-   
+#ifdef _GNU_SOURCE
+
+#define util_strchrnul strchrnul
+
+#else
+
+static INLINE char *
+util_strchrnul(const char *s, char c)
+{
+   for (; *s && *s != c; ++s);
+
+   return (char *)s;
+}
+
+#endif
+
+#ifdef _WIN32
+
 int util_vsnprintf(char *, size_t, const char *, va_list);
 int util_snprintf(char *str, size_t size, const char *format, ...);
 
-static INLINE void 
+static INLINE void
 util_vsprintf(char *str, const char *format, va_list ap)
 {
    util_vsnprintf(str, (size_t)-1, format, ap);
 }
 
-static INLINE void 
+static INLINE void
 util_sprintf(char *str, const char *format, ...)
 {
    va_list ap;
@@ -72,12 +87,9 @@ util_sprintf(char *str, const char *format, ...)
 static INLINE char *
 util_strchr(const char *s, char c)
 {
-   while(*s) {
-      if(*s == c)
-	 return (char *)s;
-      ++s;
-   }
-   return NULL;
+   char *p = util_strchrnul(s, c);
+
+   return *p ? p : NULL;
 }
 
 static INLINE char*
@@ -130,7 +142,7 @@ static INLINE char *
 util_strstr(const char *haystack, const char *needle)
 {
    const char *p = haystack;
-   int len = strlen(needle);
+   size_t len = strlen(needle);
 
    for (; (p = util_strchr(p, *needle)) != 0; p++) {
       if (util_strncmp(p, needle, len) == 0) {
@@ -176,6 +188,43 @@ util_memmove(void *dest, const void *src, size_t n)
 #endif
 
 
+/**
+ * Printable string buffer
+ */
+struct util_strbuf
+{
+   char *str;
+   char *ptr;
+   size_t left;
+};
+
+
+static INLINE void
+util_strbuf_init(struct util_strbuf *sbuf, char *str, size_t size) 
+{
+   sbuf->str = str;
+   sbuf->str[0] = 0;
+   sbuf->ptr = sbuf->str;
+   sbuf->left = size;
+}
+
+
+static INLINE void
+util_strbuf_printf(struct util_strbuf *sbuf, const char *format, ...)
+{
+   if(sbuf->left > 1) {
+      size_t written;
+      va_list ap;
+      va_start(ap, format);
+      written = util_vsnprintf(sbuf->ptr, sbuf->left, format, ap);
+      va_end(ap);
+      sbuf->ptr += written;
+      sbuf->left -= written;
+   }
+}
+
+
+
 #ifdef __cplusplus
 }
 #endif