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_SYS_SYSTEMINFO_H) 18 #include <sys/systeminfo.h> 19 #endif 20 21 #undef __FUNCT__ 22 #define __FUNCT__ "PetscGetHomeDirectory" 23 /*@C 24 PetscGetHomeDirectory - Returns home directory name. 25 26 Not Collective 27 28 Input Parameter: 29 . maxlen - maximum lengh allowed 30 31 Output Parameter: 32 . dir - contains the home directory. Must be long enough to hold the name. 33 34 Level: developer 35 36 Note: 37 If PETSc cannot determine the home directory it makes dir a null string 38 39 On Windows machines the enviornmental variable HOME specifies the home directory. 40 41 Concepts: home directory 42 @*/ 43 PetscErrorCode PetscGetHomeDirectory(char dir[],size_t maxlen) 44 { 45 PetscErrorCode ierr; 46 const char *d1; 47 48 PetscFunctionBegin; 49 d1 = getenv("HOME"); 50 if (d1) { 51 ierr = PetscStrncpy(dir,d1,maxlen);CHKERRQ(ierr); 52 } else if (maxlen > 0) dir[0] = 0; 53 PetscFunctionReturn(0); 54 } 55 56 #undef __FUNCT__ 57 #define __FUNCT__ "PetscFixFilename" 58 /*@C 59 PetscFixFilename - Fixes a file name so that it is correct for both Unix and 60 Windows by using the correct / or \ to separate directories. 61 62 Not Collective 63 64 Input Parameter: 65 . filein - name of file to be fixed 66 67 Output Parameter: 68 . fileout - the fixed name. Should long enough to hold the filename. 69 70 Level: advanced 71 72 Notes: 73 Call PetscFixFilename() just before calling fopen(). 74 @*/ 75 PetscErrorCode PetscFixFilename(const char filein[],char fileout[]) 76 { 77 PetscErrorCode ierr; 78 size_t i,n; 79 80 PetscFunctionBegin; 81 if (!filein || !fileout) PetscFunctionReturn(0); 82 83 ierr = PetscStrlen(filein,&n);CHKERRQ(ierr); 84 for (i=0; i<n; i++) { 85 if (filein[i] == PETSC_REPLACE_DIR_SEPARATOR) fileout[i] = PETSC_DIR_SEPARATOR; 86 else fileout[i] = filein[i]; 87 } 88 fileout[n] = 0; 89 PetscFunctionReturn(0); 90 } 91