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

 24: /*@C
 25:    PetscGetWorkingDirectory - Gets the current working directory.

 27:    Not Collective

 29:    Input Parameters:
 30: .  len  - maximum length of path

 32:    Output Parameter:
 33: .  path - use to hold the result value. The string should be long enough
 34:           to hold the path.

 36:    Level: developer

 38:    Concepts: working directory

 40: @*/
 41: PetscErrorCode  PetscGetWorkingDirectory(char path[],size_t len)
 42: {
 44: #if defined(PETSC_HAVE_GETCWD)
 45:   if (!getcwd(path,len)) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"getcwd()");
 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:   return(0);
 54: }