diff options
Diffstat (limited to 'compat')
| -rw-r--r-- | compat/mingw.c | 24 | ||||
| -rw-r--r-- | compat/mingw.h | 4 |
2 files changed, 26 insertions, 2 deletions
diff --git a/compat/mingw.c b/compat/mingw.c index 3aea26982d..27d6f4ac30 100644 --- a/compat/mingw.c +++ b/compat/mingw.c @@ -1986,6 +1986,30 @@ pid_t waitpid(pid_t pid, int *status, int options) return -1; } +int mingw_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 mingw_skip_dos_drive_prefix(char **path) { int ret = has_dos_drive_prefix(*path); diff --git a/compat/mingw.h b/compat/mingw.h index 7482f196af..17064665d9 100644 --- a/compat/mingw.h +++ b/compat/mingw.h @@ -394,8 +394,8 @@ HANDLE winansi_get_osfhandle(int fd); * git specific compatibility */ -#define has_dos_drive_prefix(path) \ - (isalpha(*(path)) && (path)[1] == ':' ? 2 : 0) +int mingw_has_dos_drive_prefix(const char *path); +#define has_dos_drive_prefix mingw_has_dos_drive_prefix int mingw_skip_dos_drive_prefix(char **path); #define skip_dos_drive_prefix mingw_skip_dos_drive_prefix static inline int mingw_is_dir_sep(int c) |