glsl: Make builtin_compiler portable for non-unices.

diff --git a/src/glsl/main.cpp b/src/glsl/main.cpp
index c8fc2676253095c05a466f5d3d63b22f3e6c3566..847540ddd9f328f94194c57c6289a0624a36f46e 100644 (file)
--- a/src/glsl/main.cpp
+++ b/src/glsl/main.cpp
@@ -24,11 +24,6 @@
 #include <cstdio>
 #include <getopt.h>
 
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-
 #include "ast.h"
 #include "glsl_parser_extras.h"
 #include "glsl_parser.h"
@@ -110,38 +105,40 @@ static char *
 load_text_file(void *ctx, const char *file_name)
 {
        char *text = NULL;
-       struct stat st;
-       ssize_t total_read = 0;
-       int fd = open(file_name, O_RDONLY);
+       size_t size;
+       size_t total_read = 0;
+       FILE *fp = fopen(file_name, "rb");
 
-       if (fd < 0) {
+       if (!fp) {
                return NULL;
        }
 
-       if (fstat(fd, & st) == 0) {
-          text = (char *) talloc_size(ctx, st.st_size + 1);
-               if (text != NULL) {
-                       do {
-                               ssize_t bytes = read(fd, text + total_read,
-                                                    st.st_size - total_read);
-                               if (bytes < 0) {
-                                       free(text);
-                                       text = NULL;
-                                       break;
-                               }
-
-                               if (bytes == 0) {
-                                       break;
-                               }
-
-                               total_read += bytes;
-                       } while (total_read < st.st_size);
-
-                       text[total_read] = '\0';
-               }
+       fseek(fp, 0L, SEEK_END);
+       size = ftell(fp);
+       fseek(fp, 0L, SEEK_SET);
+
+       text = (char *) talloc_size(ctx, size + 1);
+       if (text != NULL) {
+               do {
+                       size_t bytes = fread(text + total_read,
+                                            1, size - total_read, fp);
+                       if (bytes < size - total_read) {
+                               free(text);
+                               text = NULL;
+                               break;
+                       }
+
+                       if (bytes == 0) {
+                               break;
+                       }
+
+                       total_read += bytes;
+               } while (total_read < size);
+
+               text[total_read] = '\0';
        }
 
-       close(fd);
+       fclose(fp);
 
        return text;
 }