1e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng#include "cache.h" 2e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng 3e6817ec1d8ab31fc7b01906e305f848542df6413Ben Chengstatic const char *get_pwd_cwd(void) 4e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng{ 5e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng static char cwd[PATH_MAX + 1]; 6e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng char *pwd; 7e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng struct stat cwd_stat, pwd_stat; 8e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng if (getcwd(cwd, PATH_MAX) == NULL) 9e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng return NULL; 10e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng pwd = getenv("PWD"); 11e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng if (pwd && strcmp(pwd, cwd)) { 12e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng stat(cwd, &cwd_stat); 13e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng if (!stat(pwd, &pwd_stat) && 14e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng pwd_stat.st_dev == cwd_stat.st_dev && 15e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng pwd_stat.st_ino == cwd_stat.st_ino) { 16e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng strlcpy(cwd, pwd, PATH_MAX); 17e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng } 18e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng } 19e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng return cwd; 20e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng} 21e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng 22e6817ec1d8ab31fc7b01906e305f848542df6413Ben Chengconst char *make_nonrelative_path(const char *path) 23e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng{ 24e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng static char buf[PATH_MAX + 1]; 25e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng 26e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng if (is_absolute_path(path)) { 27e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX) 28e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng die("Too long path: %.*s", 60, path); 29e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng } else { 30e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng const char *cwd = get_pwd_cwd(); 31e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng if (!cwd) 32e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng die("Cannot determine the current working directory"); 33e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng if (snprintf(buf, PATH_MAX, "%s/%s", cwd, path) >= PATH_MAX) 34e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng die("Too long path: %.*s", 60, path); 35e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng } 36e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng return buf; 37e6817ec1d8ab31fc7b01906e305f848542df6413Ben Cheng} 38