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(http://curl.haxx.se/mail/archive-2007-12/0039.html) reported and fixed

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a file truncation problem on Windows build targets triggered when retrying
a download with curl.
This commit is contained in:
Yang Tse
2007-12-18 18:33:24 +00:00
parent 07a1857d59
commit 674845f239
3 changed files with 14 additions and 11 deletions
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4
CHANGES
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@@ -13,6 +13,10 @@ Yang Tse (18 Dec 2007)
if no build target has been defined we will target WinXP when building if no build target has been defined we will target WinXP when building
curl/libcurl with MSVC 9.0 (VS2008). curl/libcurl with MSVC 9.0 (VS2008).
- (http://curl.haxx.se/mail/archive-2007-12/0039.html) reported and fixed
a file truncation problem on Windows build targets triggered when retrying
a download with curl.
Daniel S (17 Dec 2007) Daniel S (17 Dec 2007)
- Mateusz Loskot pointed out that MSVC 9.0 (VS2008) has the pollfd struct and - Mateusz Loskot pointed out that MSVC 9.0 (VS2008) has the pollfd struct and
defines in winsock2.h somehow differently than previous versions and that defines in winsock2.h somehow differently than previous versions and that

1
RELEASE-NOTES
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@@ -37,6 +37,7 @@ This release includes the following bugfixes:
o POST with callback over proxy requiring NTLM or Digest o POST with callback over proxy requiring NTLM or Digest
o Expect: 100-continue flaw on re-used connection with POSTs o Expect: 100-continue flaw on re-used connection with POSTs
o build fix for MSVC 9.0 (VS2008) o build fix for MSVC 9.0 (VS2008)
o Windows curl builds failed file truncation when retry downloading
This release includes the following known bugs: This release includes the following known bugs:

20
src/main.c
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@@ -323,21 +323,19 @@ char convert_char(curl_infotype infotype, char this_char)
#define _lseeki64(hnd,ofs,whence) lseek(hnd,ofs,whence) #define _lseeki64(hnd,ofs,whence) lseek(hnd,ofs,whence)
#endif #endif
#ifndef HAVE_FTRUNCATE
#define HAVE_FTRUNCATE 1
#endif
static int ftruncate64 (int fd, curl_off_t where) static int ftruncate64 (int fd, curl_off_t where)
{ {
curl_off_t curr; if(_lseeki64(fd, where, SEEK_SET) < 0)
int rc = 0; return -1;
if ((curr = _lseeki64(fd, 0, SEEK_CUR)) < 0) if(!SetEndOfFile((HANDLE)_get_osfhandle(fd)))
return -1; return -1;
if (_lseeki64(fd, where, SEEK_SET) < 0) return 0;
return -1;
if (write(fd, 0, 0) < 0)
rc = -1;
_lseeki64(fd, curr, SEEK_SET);
return rc;
} }
#define ftruncate(fd,where) ftruncate64(fd,where) #define ftruncate(fd,where) ftruncate64(fd,where)
#endif #endif