1 2 /* 3 Code for manipulating files. 4 */ 5 #include <petscsys.h> 6 7 /*@C 8 PetscGetHomeDirectory - Returns the name of the user's home directory 9 10 Not Collective 11 12 Input Parameter: 13 . maxlen - maximum length allowed 14 15 Output Parameter: 16 . dir - contains the home directory. Must be long enough to hold the name. 17 18 Level: developer 19 20 Notes: 21 If PETSc cannot determine the home directory it makes `dir` an empty string 22 23 On Microsoft Windows machines the environmental variable `HOME` specifies the home directory. 24 25 .seealso: `PetscGetTmp()`, `PetscSharedTmp()`, `PetscGetWorkingDirectory()` 26 @*/ 27 PetscErrorCode PetscGetHomeDirectory(char dir[], size_t maxlen) 28 { 29 const char *d1; 30 31 PetscFunctionBegin; 32 d1 = getenv("HOME"); 33 if (d1) { 34 PetscCall(PetscStrncpy(dir, d1, maxlen)); 35 } else if (maxlen > 0) dir[0] = 0; 36 PetscFunctionReturn(PETSC_SUCCESS); 37 } 38 39 /*@C 40 PetscFixFilename - Fixes a file name so that it is correct for both Unix and 41 Microsoft Windows by using the correct / or \ to separate directories. 42 43 Not Collective 44 45 Input Parameter: 46 . filein - name of file to be fixed 47 48 Output Parameter: 49 . fileout - the fixed name. Should long enough to hold the filename. 50 51 Level: developer 52 53 @*/ 54 PetscErrorCode PetscFixFilename(const char filein[], char fileout[]) 55 { 56 size_t i, n; 57 58 PetscFunctionBegin; 59 if (!filein || !fileout) PetscFunctionReturn(PETSC_SUCCESS); 60 61 PetscCall(PetscStrlen(filein, &n)); 62 for (i = 0; i < n; i++) { 63 if (filein[i] == PETSC_REPLACE_DIR_SEPARATOR) fileout[i] = PETSC_DIR_SEPARATOR; 64 else fileout[i] = filein[i]; 65 } 66 fileout[n] = 0; 67 PetscFunctionReturn(PETSC_SUCCESS); 68 } 69