src/misc_file.c File Reference

#include "main.h"
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include "stat.h"

Include dependency graph for misc_file.c:

Go to the source code of this file.

Functions
int	copyfile (char *oldpath, char *newpath)
int	movefile (char *oldpath, char *newpath)
int	file_readable (char *file)

---

Function Documentation

int copyfile	(	char *	oldpath,
		char *	newpath
	)

Definition at line 40 of file misc_file.c.

References S_IFREG.

{
  int fi, fo, x;
  char buf[512];
  struct stat st;

#ifndef CYGWIN_HACKS
  fi = open(oldpath, O_RDONLY, 0);
#else
  fi = open(oldpath, O_RDONLY | O_BINARY, 0);
#endif
  if (fi < 0)
    return 1;
  fstat(fi, &st);
  if (!(st.st_mode & S_IFREG))
    return 3;
  fo = creat(newpath, (int) (st.st_mode & 0777));
  if (fo < 0) {
    close(fi);
    return 2;
  }
  for (x = 1; x > 0;) {
    x = read(fi, buf, 512);
    if (x > 0) {
      if (write(fo, buf, x) < x) {      /* Couldn't write */
        close(fo);
        close(fi);
        unlink(newpath);
        return 4;
      }
    }
  }
#ifdef HAVE_FSYNC
  fsync(fo);
#endif /* HAVE_FSYNC */
  close(fo);
  close(fi);
  return 0;
}

int file_readable

(

char *

file

)

Definition at line 99 of file misc_file.c.

{
  FILE *fp;

  if (!(fp = fopen(file, "r")))
    return 0;

  fclose(fp);
  return 1;
}

int movefile	(	char *	oldpath,
		char *	newpath
	)

Definition at line 80 of file misc_file.c.

References copyfile.

{
  int ret;

#ifdef HAVE_RENAME
  /* Try to use rename first */
  if (!rename(oldpath, newpath))
    return 0;
#endif /* HAVE_RENAME */

  /* If that fails, fall back to just copying and then
   * deleting the file.
   */
  ret = copyfile(oldpath, newpath);
  if (!ret)
    unlink(oldpath);
  return ret;
}