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/types.h>
 11: #include <sys/stat.h>
 12: #if defined(PETSC_HAVE_UNISTD_H)
 13: #include <unistd.h>
 14: #endif
 15: #if defined(PETSC_HAVE_STDLIB_H)
 16: #include <stdlib.h>
 17: #endif
 18: #if defined(PETSC_HAVE_SYS_UTSNAME_H)
 19: #include <sys/utsname.h>
 20: #endif
 21: #if defined(PETSC_HAVE_DIRECT_H)
 22: #include <direct.h>
 23: #endif
 24: #if defined(PETSC_HAVE_SYS_SYSTEMINFO_H)
 25: #include <sys/systeminfo.h>
 26: #endif

 30: /*@C
 31:    PetscGetWorkingDirectory - Gets the current working directory.

 33:    Not Collective

 35:    Input Parameters:
 36: .  len  - maximum length of path

 38:    Output Parameter:
 39: .  path - use to hold the result value. The string should be long enough
 40:           to hold the path.

 42:    Level: developer

 44:    Concepts: working directory

 46: @*/
 47: PetscErrorCode  PetscGetWorkingDirectory(char path[],size_t len)
 48: {
 50: #if defined(PETSC_HAVE_GETCWD)
 51:   if (!getcwd(path,len)) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"getcwd()");
 52: #elif defined(PETSC_HAVE__GETCWD)
 53:   _getcwd(path,len);
 54: #elif defined(PETSC_HAVE_GETWD)
 55:   getwd(path);
 56: #else
 57:   SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP_SYS, "Could not find getcwd() or getwd()");
 58: #endif
 59:   return(0);
 60: }