1 2 /* 3 Code for manipulating files. 4 */ 5 #include <petscsys.h> 6 #if defined(PETSC_HAVE_PWD_H) 7 #include <pwd.h> 8 #endif 9 #include <ctype.h> 10 #include <sys/stat.h> 11 #if defined(PETSC_HAVE_UNISTD_H) 12 #include <unistd.h> 13 #endif 14 #if defined(PETSC_HAVE_SYS_UTSNAME_H) 15 #include <sys/utsname.h> 16 #endif 17 #if defined(PETSC_HAVE_DIRECT_H) 18 #include <direct.h> 19 #endif 20 #if defined(PETSC_HAVE_SYS_SYSTEMINFO_H) 21 #include <sys/systeminfo.h> 22 #endif 23 #include <errno.h> 24 25 /*@C 26 PetscGetWorkingDirectory - Gets the current working directory. 27 28 Not Collective 29 30 Input Parameter: 31 . len - maximum length of path 32 33 Output Parameter: 34 . path - use to hold the result value. The string should be long enough 35 to hold the path. 36 37 Level: developer 38 39 .seealso: `PetscGetTmp()`, `PetscSharedTmp()`, `PetscSharedWorkingDirectory()`, `PetscGetHomeDirectory()` 40 @*/ 41 PetscErrorCode PetscGetWorkingDirectory(char path[], size_t len) 42 { 43 PetscFunctionBegin; 44 #if defined(PETSC_HAVE_GETCWD) 45 PetscCheck(getcwd(path, len), PETSC_COMM_SELF, PETSC_ERR_LIB, "Error in getcwd() due to \"%s\"", strerror(errno)); 46 #elif defined(PETSC_HAVE__GETCWD) 47 _getcwd(path, len); 48 #elif defined(PETSC_HAVE_GETWD) 49 getwd(path); 50 #else 51 SETERRQ(PETSC_COMM_SELF, PETSC_ERR_SUP_SYS, "Could not find getcwd() or getwd()"); 52 #endif 53 PetscFunctionReturn(PETSC_SUCCESS); 54 } 55