| 0,0 → 1,73 |
|---|
| #include<stdio.h> |
| #include<stdlib.h> |
| #include<string.h> |
| |
| extern char __curdir_buf[1024]; |
| |
| char* __get_curdir(void) {return __curdir_buf;} |
| |
| static void ___chdir(char* dest, const char* src) |
| { |
| // handle absolute paths |
| if (src[0]=='/') |
| { |
| strcpy(dest,src); |
| return; |
| } |
| // handle relative paths |
| char* ptr = dest + strlen(dest); |
| while (*src) |
| { |
| if (src[0] == '.' && src[1] == 0) |
| break; |
| if (src[0] == '.' && src[1] == '/') |
| {++src;++src;continue;} |
| if (src[0] == '.' && src[1] == '.' && |
| (src[2] == 0 || src[2] == '/')) |
| { |
| while (ptr > dest && ptr[-1] != '/') |
| --ptr; |
| ++src;++src; |
| if (*src == 0) break; |
| ++src; |
| continue; |
| } |
| *ptr++ = '/'; |
| if (*src == '/') ++src; |
| while (*src && *src!='/') *ptr++ = *src++; |
| } |
| *ptr = 0; |
| } |
| |
| void __chdir(const char* path) |
| { |
| ___chdir(__curdir_buf,path); |
| } |
| |
| static char __libc_combine_buffer[1024]; |
| char* __libc_combine_path(const char* c) |
| { |
| strcpy(__libc_combine_buffer,__curdir_buf); |
| ___chdir(__libc_combine_buffer,c); |
| return __libc_combine_buffer; |
| } |
| |
| |
| #ifdef __TEST_IN_DOS__ |
| |
| int main(void) |
| { |
| init_dir_stack(); |
| printf("|%s|\n",__get_curdir()); |
| __chdir("jp/1/2/3"); |
| printf("|%s|\n",__get_curdir()); |
| __chdir("/jp/1/2/3"); |
| printf("|%s|\n",__get_curdir()); |
| __chdir("../4"); |
| printf("|%s|\n",__get_curdir()); |
| __chdir("./../.."); |
| printf("|%s|\n",__get_curdir()); |
| printf("Combined=|%s|\n",combine_path("./abc/def/../../../rd/2")); |
| return 0; |
| } |
| #endif |