X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fbio%2Fbss_file.c;h=b954fe7ebc8d41d64e278a09b15ca7f39fdd034c;hb=cd91fd7c32428c0deb503f19b8061e0980476876;hp=d4c058a1e474adcdf8c7b69b67a825bdf9baa985;hpb=18a6333180f2e49393276972fc43449a6e17ed45;p=oweals%2Fopenssl.git

diff --git a/crypto/bio/bss_file.c b/crypto/bio/bss_file.c
index d4c058a1e4..b954fe7ebc 100644
--- a/crypto/bio/bss_file.c
+++ b/crypto/bio/bss_file.c
@@ -65,12 +65,34 @@
 #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"
-#include <openssl/bio.h>
+#include "bio_lcl.h"
 #include <openssl/err.h>
 
+#if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_CLIB)
+#include <nwfileio.h>
+#endif
+
 #if !defined(OPENSSL_NO_STDIO)
 
 static int MS_CALLBACK file_write(BIO *h, const char *buf, int num);
@@ -96,10 +118,53 @@ static BIO_METHOD methods_filep=
 
 BIO *BIO_new_file(const char *filename, const char *mode)
 	{
-	BIO *ret;
-	FILE *file;
+	BIO  *ret;
+	FILE *file=NULL;
+
+#if defined(_WIN32) && defined(CP_UTF8)
+	int sz, len_0 = (int)strlen(filename)+1;
+	DWORD flags;
 
-	if ((file=fopen(filename,mode)) == NULL)
+	/*
+	 * Basically there are three cases to cover: a) filename is
+	 * pure ASCII string; b) actual UTF-8 encoded string and
+	 * c) locale-ized string, i.e. one containing 8-bit
+	 * characters that are meaningful in current system locale.
+	 * If filename is pure ASCII or real UTF-8 encoded string,
+	 * MultiByteToWideChar succeeds and _wfopen works. If
+	 * filename is locale-ized string, chances are that
+	 * MultiByteToWideChar fails reporting
+	 * ERROR_NO_UNICODE_TRANSLATION, in which case we fall
+	 * back to fopen...
+	 */
+	if ((sz=MultiByteToWideChar(CP_UTF8,(flags=MB_ERR_INVALID_CHARS),
+					filename,len_0,NULL,0))>0 ||
+	    (GetLastError()==ERROR_INVALID_FLAGS &&
+	     (sz=MultiByteToWideChar(CP_UTF8,(flags=0),
+					filename,len_0,NULL,0))>0)
+	   )
+		{
+		WCHAR  wmode[8];
+		WCHAR *wfilename = _alloca(sz*sizeof(WCHAR));
+
+		if (MultiByteToWideChar(CP_UTF8,flags,
+					filename,len_0,wfilename,sz) &&
+		    MultiByteToWideChar(CP_UTF8,0,mode,strlen(mode)+1,
+			    		wmode,sizeof(wmode)/sizeof(wmode[0])) &&
+		    (file=_wfopen(wfilename,wmode))==NULL &&
+		    (errno==ENOENT || errno==EBADF)
+		   )	/* UTF-8 decode succeeded, but no file, filename
+			 * could still have been locale-ized... */
+			file = fopen(filename,mode);
+		}
+	else if (GetLastError()==ERROR_NO_UNICODE_TRANSLATION)
+		{
+		file = fopen(filename,mode);
+		}
+#else
+	file=fopen(filename,mode);	
+#endif
+	if (file == NULL)
 		{
 		SYSerr(SYS_F_FOPEN,get_last_sys_error());
 		ERR_add_error_data(5,"fopen('",filename,"','",mode,"')");
@@ -109,9 +174,13 @@ BIO *BIO_new_file(const char *filename, const char *mode)
 			BIOerr(BIO_F_BIO_NEW_FILE,ERR_R_SYS_LIB);
 		return(NULL);
 		}
-	if ((ret=BIO_new(BIO_s_file_internal())) == NULL)
+	if ((ret=BIO_new(BIO_s_file())) == NULL)
+		{
+		fclose(file);
 		return(NULL);
+		}
 
+	BIO_clear_flags(ret,BIO_FLAGS_UPLINK); /* we did fopen -> we disengage UPLINK */
 	BIO_set_fp(ret,file,BIO_CLOSE);
 	return(ret);
 	}
@@ -123,6 +192,7 @@ BIO *BIO_new_fp(FILE *stream, int close_flag)
 	if ((ret=BIO_new(BIO_s_file())) == NULL)
 		return(NULL);
 
+	BIO_set_flags(ret,BIO_FLAGS_UPLINK); /* redundant, left for documentation puposes */
 	BIO_set_fp(ret,stream,close_flag);
 	return(ret);
 	}
@@ -137,6 +207,7 @@ static int MS_CALLBACK file_new(BIO *bi)
 	bi->init=0;
 	bi->num=0;
 	bi->ptr=NULL;
+	bi->flags=BIO_FLAGS_UPLINK; /* default to UPLINK */
 	return(1);
 	}
 
@@ -147,8 +218,12 @@ static int MS_CALLBACK file_free(BIO *a)
 		{
 		if ((a->init) && (a->ptr != NULL))
 			{
-			fclose((FILE *)a->ptr);
+			if (a->flags&BIO_FLAGS_UPLINK)
+				UP_fclose (a->ptr);
+			else
+				fclose (a->ptr);
 			a->ptr=NULL;
+			a->flags=BIO_FLAGS_UPLINK;
 			}
 		a->init=0;
 		}
@@ -161,8 +236,11 @@ static int MS_CALLBACK file_read(BIO *b, char *out, int outl)
 
 	if (b->init && (out != NULL))
 		{
-		ret=fread(out,1,(int)outl,(FILE *)b->ptr);
-		if(ret == 0 && ferror((FILE *)b->ptr))
+		if (b->flags&BIO_FLAGS_UPLINK)
+			ret=UP_fread(out,1,(int)outl,b->ptr);
+		else
+			ret=fread(out,1,(int)outl,(FILE *)b->ptr);
+		if(ret == 0 && (b->flags&BIO_FLAGS_UPLINK)?UP_ferror((FILE *)b->ptr):ferror((FILE *)b->ptr))
 			{
 			SYSerr(SYS_F_FREAD,get_last_sys_error());
 			BIOerr(BIO_F_FILE_READ,ERR_R_SYS_LIB);
@@ -178,7 +256,11 @@ static int MS_CALLBACK file_write(BIO *b, const char *in, int inl)
 
 	if (b->init && (in != NULL))
 		{
-		if (fwrite(in,(int)inl,1,(FILE *)b->ptr))
+		if (b->flags&BIO_FLAGS_UPLINK)
+			ret=UP_fwrite(in,(int)inl,1,b->ptr);
+		else
+			ret=fwrite(in,(int)inl,1,(FILE *)b->ptr);
+		if (ret)
 			ret=inl;
 		/* ret=fwrite(in,1,(int)inl,(FILE *)b->ptr); */
 		/* according to Tim Hudson <tjh@cryptsoft.com>, the commented
@@ -199,35 +281,61 @@ static long MS_CALLBACK file_ctrl(BIO *b, int cmd, long num, void *ptr)
 		{
 	case BIO_C_FILE_SEEK:
 	case BIO_CTRL_RESET:
-		ret=(long)fseek(fp,num,0);
+		if (b->flags&BIO_FLAGS_UPLINK)
+			ret=(long)UP_fseek(b->ptr,num,0);
+		else
+			ret=(long)fseek(fp,num,0);
 		break;
 	case BIO_CTRL_EOF:
-		ret=(long)feof(fp);
+		if (b->flags&BIO_FLAGS_UPLINK)
+			ret=(long)UP_feof(fp);
+		else
+			ret=(long)feof(fp);
 		break;
 	case BIO_C_FILE_TELL:
 	case BIO_CTRL_INFO:
-		ret=ftell(fp);
+		if (b->flags&BIO_FLAGS_UPLINK)
+			ret=UP_ftell(b->ptr);
+		else
+			ret=ftell(fp);
 		break;
 	case BIO_C_SET_FILE_PTR:
 		file_free(b);
 		b->shutdown=(int)num&BIO_CLOSE;
-		b->ptr=(char *)ptr;
+		b->ptr=ptr;
 		b->init=1;
+#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_fsetmod
+		if (b->flags&BIO_FLAGS_UPLINK)
+			UP_fsetmod(b->ptr,(char)((num&BIO_FP_TEXT)?'t':'b'));
+		else
+#endif
 		{
-		int fd = fileno((FILE*)ptr);
 #if defined(OPENSSL_SYS_WINDOWS)
+		int fd = _fileno((FILE*)ptr);
 		if (num & BIO_FP_TEXT)
 			_setmode(fd,_O_TEXT);
 		else
 			_setmode(fd,_O_BINARY);
 #elif defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_CLIB)
-         /* Under CLib there are differences in file modes
-         */
+		int fd = fileno((FILE*)ptr);
+		/* Under CLib there are differences in file modes */
 		if (num & BIO_FP_TEXT)
-			_setmode(fd,O_TEXT);
+			setmode(fd,O_TEXT);
 		else
-			_setmode(fd,O_BINARY);
+			setmode(fd,O_BINARY);
 #elif defined(OPENSSL_SYS_MSDOS)
+		int fd = fileno((FILE*)ptr);
 		/* Set correct text/binary mode */
 		if (num & BIO_FP_TEXT)
 			_setmode(fd,_O_TEXT);
@@ -242,7 +350,8 @@ static long MS_CALLBACK file_ctrl(BIO *b, int cmd, long num, void *ptr)
 			else
 				_setmode(fd,_O_BINARY);
 			}
-#elif defined(OPENSSL_SYS_OS2)
+#elif defined(OPENSSL_SYS_OS2) || defined(OPENSSL_SYS_WIN32_CYGWIN)
+		int fd = fileno((FILE*)ptr);
 		if (num & BIO_FP_TEXT)
 			setmode(fd, O_TEXT);
 		else
@@ -271,7 +380,7 @@ static long MS_CALLBACK file_ctrl(BIO *b, int cmd, long num, void *ptr)
 			ret=0;
 			break;
 			}
-#if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_OS2)
+#if defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_OS2) || defined(OPENSSL_SYS_WIN32_CYGWIN)
 		if (!(num & BIO_FP_TEXT))
 			strcat(p,"b");
 		else
@@ -283,7 +392,7 @@ static long MS_CALLBACK file_ctrl(BIO *b, int cmd, long num, void *ptr)
 		else
 			strcat(p,"t");
 #endif
-fp=fopen(ptr,p);
+		fp=fopen(ptr,p);
 		if (fp == NULL)
 			{
 			SYSerr(SYS_F_FOPEN,get_last_sys_error());
@@ -292,8 +401,9 @@ fp=fopen(ptr,p);
 			ret=0;
 			break;
 			}
-		b->ptr=(char *)fp;
+		b->ptr=fp;
 		b->init=1;
+		BIO_clear_flags(b,BIO_FLAGS_UPLINK); /* we did fopen -> we disengage UPLINK */
 		break;
 	case BIO_C_GET_FILE_PTR:
 		/* the ptr parameter is actually a FILE ** in this case. */
@@ -310,7 +420,10 @@ fp=fopen(ptr,p);
 		b->shutdown=(int)num;
 		break;
 	case BIO_CTRL_FLUSH:
-		fflush((FILE *)b->ptr);
+		if (b->flags&BIO_FLAGS_UPLINK)
+			UP_fflush(b->ptr);
+		else
+			fflush((FILE *)b->ptr);
 		break;
 	case BIO_CTRL_DUP:
 		ret=1;
@@ -332,9 +445,19 @@ 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 (bp->flags&BIO_FLAGS_UPLINK)
+		{
+		if (!UP_fgets(buf,size,bp->ptr))
+			goto err;
+		}
+	else
+		{
+		if (!fgets(buf,size,(FILE *)bp->ptr))
+			goto err;
+		}
 	if (buf[0] != '\0')
 		ret=strlen(buf);
+	err:
 	return(ret);
 	}