pathexist.c File Reference

Functions for working with paths. More...

#include "tpcclibConfig.h"
#include "tpcextensions.h"
#include "tpcfileutil.h"

Go to the source code of this file.

Functions
int	pathExist (const char *pathname)
int	pathRemove (const char *pathname)
int	pathRemoveFiles (const char *pathname)
int	pathCreate (const char *pathname)

Detailed Description

Functions for working with paths.

Definition in file pathexist.c.

Function Documentation

pathCreate()

int pathCreate

(

const char *

pathname

)

Create path.

See also

pathExist, pathRemove, pathFileNr, filenameRmFile

Returns

Returns 0, if path could be created or exists already, 1, if it does not exist and cannot be created.

Parameters

pathname

Name of path to create; can contain subdirectories.

Definition at line 81 of file pathexist.c.

  {
  //printf("pathname='%s'\n", pathname);
  if(pathname==NULL || strnlen(pathname, 2)<1) return(1);
  if(fileExist(pathname)) return(1);
  if(pathExist(pathname)) return(0); // exists already
  // check if this is a subfolder
  char *lpath=strdup(pathname);
  char *cptr=strrchr(lpath, '/'); if(cptr==NULL) cptr=strrchr(lpath, '\\');
  if(cptr!=NULL) { // it is a subfolder, so call recursively with the parent folder name
    *cptr=(char)0;
    int ret=pathCreate(lpath);
    if(ret!=0) {free(lpath); return(1);}
  }
  free(lpath);
  // now try to create the folder
#ifndef HAVE__MKDIR
  // other than Windows
  if(mkdir(pathname, 0777)!=0 && errno!=EEXIST) return(1); else return(0);
#else
  // Windows (MinGW)
  if(_mkdir(pathname)!=0 && errno!=EEXIST) return(1); else return(0);
#endif
}

Referenced by imgWriteDICOM(), imgWriteNifti(), and pathCreate().

pathExist()

int pathExist

(

const char *

pathname

)

Check if specified directory (path) exists.

See also

fileExist, pathFileNr, filenameRmFile

Returns

Returns 1, if path exists, and 0 if it does not or is not a directory.

Parameters

pathname

Name of path to check.

Definition at line 17 of file pathexist.c.

  {
  if(pathname==NULL) return(0);
  int len=strlen(pathname);
  if(len<1) return(0);
  char *str=strdup(pathname);
  if(len>1 && str[len-1]=='/') {
    if(len<2) {free(str); return(0);}
    str[len-1]='\0';
  }
  struct stat fst;
  if(stat(str, &fst)!=0) {free(str); return(0);}
  free(str);
  if(S_ISDIR(fst.st_mode)) return(1);
  return(0);
}

Referenced by dcmFileList(), imgFormatFromFName(), imgRead(), imgWriteDICOM(), pathCreate(), pathFileList(), pathFileNr(), pathRemove(), and pathRemoveFiles().

pathRemove()

int pathRemove

(

const char *

pathname

)

Remove path.

See also

fileExist, pathFileNr, filenameRmFile

Returns

Returns 0, if path could be removed or it did not exist, 1, if it exists and cannot be removed.

Parameters

pathname

Name of path to remove.

Definition at line 43 of file pathexist.c.

  {
  if(fileExist(pathname)) return(1);
  if(!pathExist(pathname)) return(0);
  if(rmdir(pathname)==0) return(0); else return(1);
}

Referenced by imgWriteDICOM().

pathRemoveFiles()

int pathRemoveFiles

(

const char *

pathname

)

Remove regular files in specified path. Subfolders are not affected.

See also

fileExist, pathFileNr, pathFileList, pathRemove

Returns

Returns 0, if files could be removed or did not exist, 1, in case of an error.

Parameters

pathname

Name of path from where to remove files.

Definition at line 58 of file pathexist.c.

  {
  if(fileExist(pathname)) return(1); // Error if filename was given
  if(!pathExist(pathname)) return(0); // No error if path does not exist
  IFT ift; iftInit(&ift);
  unsigned short int n=pathFileList(pathname, &ift);
  if(n==0) {iftFree(&ift); return(0);}
  for(int i=0; i<ift.keyNr; i++) {
    if(remove(ift.item[i].value)) {iftFree(&ift); return(1);}
  }
  iftFree(&ift);
  return(0);
}