portability fixes
diff --git a/libasn1compiler/asn1c_save.c b/libasn1compiler/asn1c_save.c
index 381404e..1abf242 100644
--- a/libasn1compiler/asn1c_save.c
+++ b/libasn1compiler/asn1c_save.c
@@ -76,11 +76,12 @@
if(dlist) {
char buf[8129];
char *dir_end;
- int i = strlen(datadir);
+ size_t dlen = strlen(datadir);
+ int i;
- assert(i < (int)(sizeof(buf) / 2 - 2));
- memcpy(buf, datadir, i);
- dir_end = buf + i;
+ assert(dlen < (sizeof(buf) / 2 - 2));
+ memcpy(buf, datadir, dlen);
+ dir_end = buf + dlen;
*dir_end++ = '/';
for(i = 0; i < dlist->el_count; i++) {
@@ -254,6 +255,35 @@
return 0;
}
+/*
+ * Copy file for real.
+ */
+static int
+real_copy(const char *src, const char *dst) {
+ unsigned char buf[8192];
+ FILE *fpsrc, *fpdst;
+ size_t len;
+ int retval = 0;
+
+ fpsrc = fopen(src, "rb");
+ if(!fpsrc) { errno = EIO; return -1; }
+ fpdst = fopen(src, "wb");
+ if(!fpdst) { fclose(fpsrc); errno = EIO; return -1; }
+
+ while(!feof(fpsrc)) {
+ len = fread(buf, 1, sizeof(buf), fpsrc);
+ if(fwrite(buf, 1, len, fpsrc) != len) {
+ errno = EIO;
+ retval = -1;
+ break;
+ }
+ }
+
+ fclose(fpsrc);
+ fclose(fpdst);
+ return retval;
+}
+
static int
asn1c_copy_over(arg_t *arg, char *path) {
char *fname;
@@ -261,7 +291,13 @@
(void)arg; /* Unused argument */
fname = a1c_basename(path);
- if(!fname || symlink(path, fname)) {
+ if(!fname
+#ifdef WIN32
+ || real_copy(path, fname)
+#else
+ || (1 ? symlink(path, fname) : real_copy(path, fname))
+#endif
+ ) {
if(errno == EEXIST) {
struct stat sb1, sb2;
if(stat(path, &sb1) == 0