1.0-61061.0-6106

1 files changed, 94 insertions, 0 deletions

diff --git a/gen-ui-array.c b/gen-ui-array.c
new file mode 100644
index 0000000..6cb7e26
--- /dev/null
+++ b/gen-ui-array.c
@@ -0,0 +1,94 @@
+/*
+ * This C program takes a filename and an array name, and prints to
+ * stdout an array of the data contained in the file.
+ */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/mman.h>
+
+int main(int argc, char *argv[])
+{
+    char *arrayname, *filename;
+    unsigned char *src;
+    struct stat stat_buf;
+    int length, fd, i, n;
+
+    if (argc != 3) {
+        fprintf(stderr, "usage: %s [filename] [arrayname]\n", argv[0]);
+        return 1;
+    }
+    
+    filename = argv[1];
+    arrayname = argv[2];
+    
+    /* open the file */
+
+    fd = open(filename, O_RDONLY);
+    if (fd < 0) {
+        fprintf(stderr, "unable to open(2) %s (%s)\n",
+                filename, strerror(errno));
+        return 1;
+    }
+
+    /* get the length of the file */
+
+    if (fstat(fd, &stat_buf) != 0) {
+        fprintf(stderr, "unable to stat(2) %s (%s)\n",
+                filename, strerror(errno));
+        return 1;
+    }
+
+    length = stat_buf.st_size;
+
+    /* map the file */
+
+    src = mmap(0, length, PROT_READ, MAP_SHARED, fd, 0);
+    if (src == (void *) -1) {
+        fprintf(stderr, "unable to mmap(2) %s (%s)\n",
+                filename, strerror(errno));
+        return 1;
+    }
+
+    /* print the header */
+
+    printf("/*\n");
+    printf( " * THIS FILE IS AUTOMATICALLY GENERATED - DO NOT EDIT\n");
+    printf( " *\n");
+    printf( " * This file contains the contents of the file \"%s\"\n",
+            filename);
+    printf( " * as the byte array %s[].\n", arrayname);
+    printf( " */\n\n");
+
+    /* print a separate variable that stores the size */
+
+    printf("const int %s_size = %d;\n\n", arrayname, length);
+
+    /* print the array name */
+
+    printf("const unsigned char %s[%d] = {\n", arrayname, length);
+
+    for (i = 0, n = 0; i < length; i++, n++) {
+        if (n == 0) printf("    ");
+        printf("0x%02x, ", src[i]);
+        if (n >= 11) { printf("\n"); n = -1; }
+    }
+    
+    printf("\n};\n\n");
+
+    /* unmap the file */
+
+    munmap(src, length);
+
+    /* close the file */
+
+    close(fd);
+
+
+    return 0;
+}