thodg/libgit2/src/win32/dir.c

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• Hash : 0234c186
  Author :
  Date : 2009-03-20T19:52:50
  

  win32: Add <dirent.h> directory reading routines Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

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• src/win32/dir.c

• #include "dir.h"
  
  static int init_filter(char *filter, size_t n, const char *dir)
  {
  	int len = strlen(dir);
  
  	if (len+3 >= n)
  		return 0;
  
  	strcpy(filter, dir);
  	if (len && dir[len-1] != '/')
  		strcat(filter, "/");
  	strcat(filter, "*");
  
  	return 1;
  }
  
  DIR *opendir(const char *dir)
  {
  	char filter[4096];
  	DIR *new;
  
  	if (!dir || !init_filter(filter, sizeof(filter), dir))
  		return NULL;
  
  	new = git__malloc(sizeof(*new));
  	if (!new)
  		return NULL;
  
  	new->dir = git__malloc(strlen(dir)+1);
  	if (!new->dir) {
  		free(new);
  		return NULL;
  	}
  	strcpy(new->dir, dir);
  
  	new->h = FindFirstFile(filter, &new->f);
  	if (new->h == INVALID_HANDLE_VALUE) {
  		free(new->dir);
  		free(new);
  		return NULL;
  	}
  	new->first = 1;
  
  	return new;
  }
  
  struct dirent *readdir(DIR *d)
  {
  	if (!d || d->h == INVALID_HANDLE_VALUE)
  		return NULL;
  
  	if (d->first)
  		d->first = 0;
  	else {
  		if (!FindNextFile(d->h, &d->f))
  			return NULL;
  	}
  
  	if (strlen(d->f.cFileName) >= sizeof(d->entry.d_name))
  		return NULL;
  
  	d->entry.d_ino = 0;
  	strcpy(d->entry.d_name, d->f.cFileName);
  
  	return &d->entry;
  }
  
  void rewinddir(DIR *d)
  {
  	char filter[4096];
  
  	if (d) {
  		if (d->h != INVALID_HANDLE_VALUE)
  			FindClose(d->h);
  		d->h = INVALID_HANDLE_VALUE;
  		d->first = 0;
  		if (init_filter(filter, sizeof(filter), d->dir)) {
  			d->h = FindFirstFile(filter, &d->f);
  			if (d->h != INVALID_HANDLE_VALUE)
  				d->first = 1;
  		}
  	}
  }
  
  int closedir(DIR *d)
  {
  	if (d) {
  		if (d->h != INVALID_HANDLE_VALUE)
  			FindClose(d->h);
  		if (d->dir)
  			free(d->dir);
  		free(d);
  	}
  	return 0;
  }
  
  

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