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-rw-r--r--compat/bswap.h2
-rw-r--r--compat/mingw.c63
-rw-r--r--compat/mingw.h10
-rw-r--r--compat/vcbuild/include/termios.h1
-rw-r--r--compat/win32mmap.c6
5 files changed, 73 insertions, 9 deletions
diff --git a/compat/bswap.h b/compat/bswap.h
index f3b8c44..54756db 100644
--- a/compat/bswap.h
+++ b/compat/bswap.h
@@ -17,6 +17,8 @@ static inline uint32_t default_swab32(uint32_t val)
((val & 0x000000ff) << 24));
}
+#undef bswap32
+
#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
#define bswap32(x) ({ \
diff --git a/compat/mingw.c b/compat/mingw.c
index ab65f77..9a8e336 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -140,6 +140,39 @@ int mingw_open (const char *filename, int oflags, ...)
return fd;
}
+#undef write
+ssize_t mingw_write(int fd, const void *buf, size_t count)
+{
+ /*
+ * While write() calls to a file on a local disk are translated
+ * into WriteFile() calls with a maximum size of 64KB on Windows
+ * XP and 256KB on Vista, no such cap is placed on writes to
+ * files over the network on Windows XP. Unfortunately, there
+ * seems to be a limit of 32MB-28KB on X64 and 64MB-32KB on x86;
+ * bigger writes fail on Windows XP.
+ * So we cap to a nice 31MB here to avoid write failures over
+ * the net without changing the number of WriteFile() calls in
+ * the local case.
+ */
+ return write(fd, buf, min(count, 31 * 1024 * 1024));
+}
+
+#undef fopen
+FILE *mingw_fopen (const char *filename, const char *otype)
+{
+ if (!strcmp(filename, "/dev/null"))
+ filename = "nul";
+ return fopen(filename, otype);
+}
+
+#undef freopen
+FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream)
+{
+ if (filename && !strcmp(filename, "/dev/null"))
+ filename = "nul";
+ return freopen(filename, otype, stream);
+}
+
/*
* The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
* Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
@@ -259,8 +292,17 @@ int mingw_utime (const char *file_name, const struct utimbuf *times)
int fh, rc;
/* must have write permission */
- if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0)
- return -1;
+ DWORD attrs = GetFileAttributes(file_name);
+ if (attrs != INVALID_FILE_ATTRIBUTES &&
+ (attrs & FILE_ATTRIBUTE_READONLY)) {
+ /* ignore errors here; open() will report them */
+ SetFileAttributes(file_name, attrs & ~FILE_ATTRIBUTE_READONLY);
+ }
+
+ if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0) {
+ rc = -1;
+ goto revert_attrs;
+ }
time_t_to_filetime(times->modtime, &mft);
time_t_to_filetime(times->actime, &aft);
@@ -270,6 +312,13 @@ int mingw_utime (const char *file_name, const struct utimbuf *times)
} else
rc = 0;
close(fh);
+
+revert_attrs:
+ if (attrs != INVALID_FILE_ATTRIBUTES &&
+ (attrs & FILE_ATTRIBUTE_READONLY)) {
+ /* ignore errors again */
+ SetFileAttributes(file_name, attrs);
+ }
return rc;
}
@@ -618,6 +667,7 @@ static int env_compare(const void *a, const void *b)
}
static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
+ const char *dir,
int prepend_cmd, int fhin, int fhout, int fherr)
{
STARTUPINFO si;
@@ -697,7 +747,7 @@ static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
memset(&pi, 0, sizeof(pi));
ret = CreateProcess(cmd, args.buf, NULL, NULL, TRUE, flags,
- env ? envblk.buf : NULL, NULL, &si, &pi);
+ env ? envblk.buf : NULL, dir, &si, &pi);
if (env)
strbuf_release(&envblk);
@@ -714,10 +764,11 @@ static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
int prepend_cmd)
{
- return mingw_spawnve_fd(cmd, argv, env, prepend_cmd, 0, 1, 2);
+ return mingw_spawnve_fd(cmd, argv, env, NULL, prepend_cmd, 0, 1, 2);
}
pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
+ const char *dir,
int fhin, int fhout, int fherr)
{
pid_t pid;
@@ -740,14 +791,14 @@ pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
pid = -1;
}
else {
- pid = mingw_spawnve_fd(iprog, argv, env, 1,
+ pid = mingw_spawnve_fd(iprog, argv, env, dir, 1,
fhin, fhout, fherr);
free(iprog);
}
argv[0] = argv0;
}
else
- pid = mingw_spawnve_fd(prog, argv, env, 0,
+ pid = mingw_spawnve_fd(prog, argv, env, dir, 0,
fhin, fhout, fherr);
free(prog);
}
diff --git a/compat/mingw.h b/compat/mingw.h
index e254fb4..0e3e743 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -170,6 +170,15 @@ int link(const char *oldpath, const char *newpath);
int mingw_open (const char *filename, int oflags, ...);
#define open mingw_open
+ssize_t mingw_write(int fd, const void *buf, size_t count);
+#define write mingw_write
+
+FILE *mingw_fopen (const char *filename, const char *otype);
+#define fopen mingw_fopen
+
+FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
+#define freopen mingw_freopen
+
char *mingw_getcwd(char *pointer, int len);
#define getcwd mingw_getcwd
@@ -223,6 +232,7 @@ int mingw_utime(const char *file_name, const struct utimbuf *times);
#define utime mingw_utime
pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
+ const char *dir,
int fhin, int fhout, int fherr);
void mingw_execvp(const char *cmd, char *const *argv);
#define execvp mingw_execvp
diff --git a/compat/vcbuild/include/termios.h b/compat/vcbuild/include/termios.h
new file mode 100644
index 0000000..0d8552a
--- /dev/null
+++ b/compat/vcbuild/include/termios.h
@@ -0,0 +1 @@
+/* Intentionally empty file to support building git with MSVC */
diff --git a/compat/win32mmap.c b/compat/win32mmap.c
index 1c5a149..b58aa69 100644
--- a/compat/win32mmap.c
+++ b/compat/win32mmap.c
@@ -4,19 +4,19 @@ void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t of
{
HANDLE hmap;
void *temp;
- size_t len;
+ off_t len;
struct stat st;
uint64_t o = offset;
uint32_t l = o & 0xFFFFFFFF;
uint32_t h = (o >> 32) & 0xFFFFFFFF;
if (!fstat(fd, &st))
- len = xsize_t(st.st_size);
+ len = st.st_size;
else
die("mmap: could not determine filesize");
if ((length + offset) > len)
- length = len - offset;
+ length = xsize_t(len - offset);
if (!(flags & MAP_PRIVATE))
die("Invalid usage of mmap when built with USE_WIN32_MMAP");