glsl/glcpp: Use stdio.h instead of unistd.h.

diff --git a/src/glsl/glcpp/glcpp.c b/src/glsl/glcpp/glcpp.c
index 564194caac2a4ebcbd6eedc1725cfc036e8a8aaa..325289129d53006c3c9902bb01f676a2f339269e 100644 (file)
--- a/src/glsl/glcpp/glcpp.c
+++ b/src/glsl/glcpp/glcpp.c
@@ -21,10 +21,7 @@
  * DEALINGS IN THE SOFTWARE.
  */
 
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
+#include <stdio.h>
 #include <string.h>
 #include <errno.h>
 #include "glcpp.h"
@@ -40,16 +37,16 @@ _mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
    *ptr = sh;
 }
 
-/* Read from fd until EOF and return a string of everything read.
+/* Read from fp until EOF and return a string of everything read.
  */
 static char *
-load_text_fd (void *ctx, int fd)
+load_text_fp (void *ctx, FILE *fp)
 {
 #define CHUNK 4096
        char *text = NULL;
-       ssize_t text_size = 0;
-       ssize_t total_read = 0;
-       ssize_t bytes;
+       size_t text_size = 0;
+       size_t total_read = 0;
+       size_t bytes;
 
        while (1) {
                if (total_read + CHUNK + 1 > text_size) {
@@ -60,19 +57,12 @@ load_text_fd (void *ctx, int fd)
                                return NULL;
                        }
                }
-               bytes = read (fd, text + total_read, CHUNK);
-               if (bytes < 0) {
-                       fprintf (stderr, "Error while reading: %s\n",
-                                strerror (errno));
-                       ralloc_free (text);
-                       return NULL;
-               }
+               bytes = fread (text + total_read, 1, CHUNK, fp);
+               total_read += bytes;
 
-               if (bytes == 0) {
+               if (bytes < CHUNK) {
                        break;
                }
-
-               total_read += bytes;
        }
 
        text[total_read] = '\0';
@@ -84,21 +74,21 @@ static char *
 load_text_file(void *ctx, const char *filename)
 {
        char *text;
-       int fd;
+       FILE *fp;
 
        if (filename == NULL || strcmp (filename, "-") == 0)
-               return load_text_fd (ctx, STDIN_FILENO);
+               return load_text_fp (ctx, stdin);
 
-       fd = open (filename, O_RDONLY);
-       if (fd < 0) {
+       fp = fopen (filename, "r");
+       if (fp == NULL) {
                fprintf (stderr, "Failed to open file %s: %s\n",
                         filename, strerror (errno));
                return NULL;
        }
 
-       text = load_text_fd (ctx, fd);
+       text = load_text_fp (ctx, fp);
 
-       close(fd);
+       fclose(fp);
 
        return text;
 }