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authorLibravatar Johannes Schindelin <johannes.schindelin@gmx.de>2019-12-04 22:46:37 +0100
committerLibravatar Johannes Schindelin <johannes.schindelin@gmx.de>2019-12-06 16:31:12 +0100
commitfc346cb2925d4647ccd65177660bffab13cbe253 (patch)
tree414c061e84002c2f65ef9b3d50646128217dcac4 /compat/win32
parentGit 2.21 (diff)
parentGit 2.20.2 (diff)
downloadtgif-fc346cb2925d4647ccd65177660bffab13cbe253.tar.xz
Sync with 2.20.2
* maint-2.20: (36 commits) Git 2.20.2 t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x Git 2.19.3 Git 2.18.2 Git 2.17.3 Git 2.16.6 test-drop-caches: use `has_dos_drive_prefix()` Git 2.15.4 Git 2.14.6 mingw: handle `subst`-ed "DOS drives" mingw: refuse to access paths with trailing spaces or periods mingw: refuse to access paths with illegal characters unpack-trees: let merged_entry() pass through do_add_entry()'s errors quote-stress-test: offer to test quoting arguments for MSYS2 sh t6130/t9350: prepare for stringent Win32 path validation quote-stress-test: allow skipping some trials quote-stress-test: accept arguments to test via the command-line tests: add a helper to stress test argument quoting mingw: fix quoting of arguments Disallow dubiously-nested submodule git directories ...
Diffstat (limited to 'compat/win32')
-rw-r--r--compat/win32/path-utils.c24
-rw-r--r--compat/win32/path-utils.h5
2 files changed, 27 insertions, 2 deletions
diff --git a/compat/win32/path-utils.c b/compat/win32/path-utils.c
index d9d3641de8..ebf2f12eb6 100644
--- a/compat/win32/path-utils.c
+++ b/compat/win32/path-utils.c
@@ -1,5 +1,29 @@
#include "../../git-compat-util.h"
+int win32_has_dos_drive_prefix(const char *path)
+{
+ int i;
+
+ /*
+ * Does it start with an ASCII letter (i.e. highest bit not set),
+ * followed by a colon?
+ */
+ if (!(0x80 & (unsigned char)*path))
+ return *path && path[1] == ':' ? 2 : 0;
+
+ /*
+ * While drive letters must be letters of the English alphabet, it is
+ * possible to assign virtually _any_ Unicode character via `subst` as
+ * a drive letter to "virtual drives". Even `1`, or `ä`. Or fun stuff
+ * like this:
+ *
+ * subst ֍: %USERPROFILE%\Desktop
+ */
+ for (i = 1; i < 4 && (0x80 & (unsigned char)path[i]); i++)
+ ; /* skip first UTF-8 character */
+ return path[i] == ':' ? i + 1 : 0;
+}
+
int win32_skip_dos_drive_prefix(char **path)
{
int ret = has_dos_drive_prefix(*path);
diff --git a/compat/win32/path-utils.h b/compat/win32/path-utils.h
index 0f70d43920..3403681458 100644
--- a/compat/win32/path-utils.h
+++ b/compat/win32/path-utils.h
@@ -1,5 +1,6 @@
-#define has_dos_drive_prefix(path) \
- (isalpha(*(path)) && (path)[1] == ':' ? 2 : 0)
+int win32_has_dos_drive_prefix(const char *path);
+#define has_dos_drive_prefix win32_has_dos_drive_prefix
+
int win32_skip_dos_drive_prefix(char **path);
#define skip_dos_drive_prefix win32_skip_dos_drive_prefix
static inline int win32_is_dir_sep(int c)