| 1 | #define USE_THE_REPOSITORY_VARIABLE |
| 2 | |
| 3 | #include "../../git-compat-util.h" |
| 4 | #include "../../environment.h" |
| 5 | |
| 6 | int win32_has_dos_drive_prefix(const char *path) |
| 7 | { |
| 8 | int i; |
| 9 | |
| 10 | /* |
| 11 | * Does it start with an ASCII letter (i.e. highest bit not set), |
| 12 | * followed by a colon? |
| 13 | */ |
| 14 | if (!(0x80 & (unsigned char)*path)) |
| 15 | return *path && path[1] == ':' ? 2 : 0; |
| 16 | |
| 17 | /* |
| 18 | * While drive letters must be letters of the English alphabet, it is |
| 19 | * possible to assign virtually _any_ Unicode character via `subst` as |
| 20 | * a drive letter to "virtual drives". Even `1`, or `ä`. Or fun stuff |
| 21 | * like this: |
| 22 | * |
| 23 | * subst ֍: %USERPROFILE%\Desktop |
| 24 | */ |
| 25 | for (i = 1; i < 4 && (0x80 & (unsigned char)path[i]); i++) |
| 26 | ; /* skip first UTF-8 character */ |
| 27 | return path[i] == ':' ? i + 1 : 0; |
| 28 | } |
| 29 | |
| 30 | int win32_skip_dos_drive_prefix(char **path) |
| 31 | { |
| 32 | int ret = has_dos_drive_prefix(*path); |
| 33 | *path += ret; |
| 34 | return ret; |
| 35 | } |
| 36 | |
| 37 | int win32_offset_1st_component(const char *path) |
| 38 | { |
| 39 | char *pos = (char *)path; |
| 40 | |
| 41 | /* unc paths */ |
| 42 | if (!skip_dos_drive_prefix(&pos) && |
| 43 | is_dir_sep(pos[0]) && is_dir_sep(pos[1])) { |
| 44 | /* skip server name */ |
| 45 | pos = strpbrk(pos + 2, "\\/"); |
| 46 | if (!pos) |
| 47 | return 0; /* Error: malformed unc path */ |
| 48 | |
| 49 | do { |
| 50 | pos++; |
| 51 | } while (*pos && !is_dir_sep(*pos)); |
| 52 | } |
| 53 | |
| 54 | return pos + is_dir_sep(*pos) - path; |
| 55 | } |
| 56 | |
| 57 | int win32_fspathncmp(const char *a, const char *b, size_t count) |
| 58 | { |
| 59 | int diff; |
| 60 | |
| 61 | for (;;) { |
| 62 | if (!count--) |
| 63 | return 0; |
| 64 | if (!*a) |
| 65 | return *b ? -1 : 0; |
| 66 | if (!*b) |
| 67 | return +1; |
| 68 | |
| 69 | if (is_dir_sep(*a)) { |
| 70 | if (!is_dir_sep(*b)) |
| 71 | return -1; |
| 72 | a++; |
| 73 | b++; |
| 74 | continue; |
| 75 | } else if (is_dir_sep(*b)) |
| 76 | return +1; |
| 77 | |
| 78 | diff = ignore_case ? |
| 79 | (unsigned char)tolower(*a) - (int)(unsigned char)tolower(*b) : |
| 80 | (unsigned char)*a - (int)(unsigned char)*b; |
| 81 | if (diff) |
| 82 | return diff; |
| 83 | a++; |
| 84 | b++; |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | int win32_fspathcmp(const char *a, const char *b) |
| 89 | { |
| 90 | return win32_fspathncmp(a, b, (size_t)-1); |
| 91 | } |