filexist.c File Reference

Functions for checking if file exists or how many files do exist. More...

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

Go to the source code of this file.

Functions
int	fileExist (const char *filename)
unsigned short int	pathFileNr (const char *pathname)
unsigned short int	pathFileList (const char *pathname, IFT *ift)

Detailed Description

Functions for checking if file exists or how many files do exist.

Definition in file filexist.c.

Function Documentation

fileExist()

int fileExist

(

const char *

filename

)

Check if specified file (not path) exists.

See also

pathExist, pathFileNr, pathFileList, filenameRmPath, fncasematch, asciiFileRead

Returns

Returns 1, if file exists, and 0 if it does not or is not a regular file.

Parameters

filename

Name of file to check.

Definition at line 17 of file filexist.c.

  {
  if(filename==NULL || strnlen(filename, 2)<1) return(0);
  struct stat fst;
  if(stat(filename, &fst)!=0) return(0);
  if(S_ISREG(fst.st_mode)) return(1);
  return(0);
}

Referenced by anaExists(), dcmFileList(), imgRead(), imgWriteNifti(), micropetExists(), niftiExists(), niftiWriteHeader(), pathCreate(), pathFileList(), pathFileNr(), pathRemove(), and pathRemoveFiles().

pathFileList()

unsigned short int pathFileList	(	const char *	pathname,
		IFT *	ift )

List the names regular files in specified path into IFT structure. File names will contain the directory path.

Returns

Returns the number of stored regular file names.

See also

pathFileNr, iftInit, iftFree

Parameters

pathname	Name of path.
ift	Pointer to initiated IFT structure; any previous contents are kept.

Definition at line 83 of file filexist.c.

  {
  if(pathname==NULL || strnlen(pathname, 2)<1) return(0);
  if(ift==NULL) return(0);
  /* Check that path exists */
  if(!pathExist(pathname)) return(0);
  /* Open the directory */
  DIR *dp;
  dp=opendir(pathname); if(dp==NULL) return(0);
#if(1)
  char tempname[2*FILENAME_MAX];
  unsigned short int n=0;
  struct dirent *de;
  /* Go throught the directory */
  while((de=readdir(dp))!=NULL) {
    if(de->d_name[0]=='.') continue; /* Ignore hidden and 'system' dirs */
    /* Combine path and name */
    sprintf(tempname, "%s/%s", pathname, de->d_name);
    /* Check that it is regular file */
    if(!fileExist(tempname)) continue;
    /* Add to IFT */
    if(iftPut(ift, NULL, tempname, 0, NULL)) break;
    n++;
  }
#else  // readdir_r deprecated
  struct dirent de, *deptr;
  char tempname[2*FILENAME_MAX];
  unsigned short int n=0;
  /* Go throught the directory */
  while(readdir_r(dp, &de, &deptr)==0 && deptr!=NULL) {
    if(de.d_name[0]=='.') continue; /* Ignore hidden and 'system' dirs */
    /* Combine path and name */
    sprintf(tempname, "%s/%s", pathname, de.d_name);
    /* Check that it is regular file */
    if(!fileExist(tempname)) continue;
    /* Add to IFT */
    if(iftPut(ift, NULL, tempname, 0, NULL)) break;
    n++;
  }
#endif
  closedir(dp);
  return(n);
}

Referenced by dcmFileList(), imgRead(), and pathRemoveFiles().

pathFileNr()

unsigned short int pathFileNr

(

const char *

pathname

)

Returns

Returns the number of regular files in specified path.

See also

pathExist, fileExist, pathFileList

Parameters

pathname

Name of path.

Definition at line 33 of file filexist.c.

  {
  if(pathname==NULL || strnlen(pathname, 2)<1) return(0);
  /* Check that path exists */
  if(!pathExist(pathname)) return(0);
  /* Open the directory */
  DIR *dp;
  dp=opendir(pathname); if(dp==NULL) return(0);
#if(1)
  char tempname[2*FILENAME_MAX];
  unsigned short int n=0;
  struct dirent *de;
  /* Go through the directory */
  while((de=readdir(dp))!=NULL) {
    //printf("d_name='%s'\n", de.d_name);
    if(de->d_name[0]=='.') continue; /* Ignore hidden and 'system' dirs */
    /* Combine path and name */
    sprintf(tempname, "%s/%s", pathname, de->d_name);
    //printf("name='%s'\n", tempname);
    /* Check that it is regular file */
    if(fileExist(tempname)) n++;
  }
#else  // readdir_r deprecated
  struct dirent de, *deptr;
  char tempname[2*FILENAME_MAX];
  unsigned short int n=0;
  /* Go through the directory */
  while(readdir_r(dp, &de, &deptr)==0 && deptr!=NULL) {
    //printf("d_name='%s'\n", de.d_name);
    if(de.d_name[0]=='.') continue; /* Ignore hidden and 'system' dirs */
    /* Combine path and name */
    sprintf(tempname, "%s/%s", pathname, de.d_name);
    //printf("name='%s'\n", tempname);
    /* Check that it is regular file */
    if(fileExist(tempname)) n++;
  }
#endif
  closedir(dp);
  return(n);
}

Referenced by imgRead(), and imgWriteDICOM().