Fix missing applink call.

[openssl.git] / crypto / bio / bss_file.c

diff --git a/crypto/bio/bss_file.c b/crypto/bio/bss_file.c
index c97ac146515d96dc6af219ef7d34844f7279cd84..ed6ee6cabba0b0e253897a5dbae75fa0eac7eb82 100644 (file)
--- a/crypto/bio/bss_file.c
+++ b/crypto/bio/bss_file.c
@@ -65,6 +65,24 @@
 #ifndef HEADER_BSS_FILE_C
 #define HEADER_BSS_FILE_C
 
+#if defined(__linux) || defined(__sun) || defined(__hpux)
+/* Following definition aliases fopen to fopen64 on above mentioned
+ * platforms. This makes it possible to open and sequentially access
+ * files larger than 2GB from 32-bit application. It does not allow to
+ * traverse them beyond 2GB with fseek/ftell, but on the other hand *no*
+ * 32-bit platform permits that, not with fseek/ftell. Not to mention
+ * that breaking 2GB limit for seeking would require surgery to *our*
+ * API. But sequential access suffices for practical cases when you
+ * can run into large files, such as fingerprinting, so we can let API
+ * alone. For reference, the list of 32-bit platforms which allow for
+ * sequential access of large files without extra "magic" comprise *BSD,
+ * Darwin, IRIX...
+ */
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
+#endif
+
 #include <stdio.h>
 #include <errno.h>
 #include "cryptlib.h"
@@ -236,12 +254,17 @@ static long MS_CALLBACK file_ctrl(BIO *b, int cmd, long num, void *ptr)
                b->shutdown=(int)num&BIO_CLOSE;
                b->ptr=ptr;
                b->init=1;
-#if BIO_FLAGS_UPLINK!=0 && defined(_IOB_ENTRIES)
+#if BIO_FLAGS_UPLINK!=0
+#if defined(__MINGW32__) && defined(__MSVCRT__) && !defined(_IOB_ENTRIES)
+#define _IOB_ENTRIES 20
+#endif
+#if defined(_IOB_ENTRIES)
                /* Safety net to catch purely internal BIO_set_fp calls */
                if ((size_t)ptr >= (size_t)stdin &&
                    (size_t)ptr <  (size_t)(stdin+_IOB_ENTRIES))
                        BIO_clear_flags(b,BIO_FLAGS_UPLINK);
 #endif
+#endif
 #ifdef UP_fsetmode
                if (b->flags&BIO_FLAGS_UPLINK)
                        UP_fsetmode(b->ptr,num&BIO_FP_TEXT?'t':'b');
@@ -373,7 +396,10 @@ static int MS_CALLBACK file_gets(BIO *bp, char *buf, int size)
        int ret=0;
 
        buf[0]='\0';
-       fgets(buf,size,(FILE *)bp->ptr);
+       if (b->flags&BIO_FLAGS_UPLINK)
+               UP_fgets(buf,size,bp->ptr);
+       else
+               fgets(buf,size,(FILE *)bp->ptr);
        if (buf[0] != '\0')
                ret=strlen(buf);
        return(ret);