Linux下创建目录，类似于mkdir -p /home/aaa/bbb/ccc功能

最新推荐文章于 2024-04-08 23:08:36 发布

原创最新推荐文章于 2024-04-08 23:08:36 发布 · 2.3k 阅读

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本文介绍了一个用于递归创建目录的C语言程序实现。该程序通过分解路径并逐级创建目录来确保所有必需的中间目录都存在。这种方法适用于需要在文件系统中创建复杂目录结构的应用场景。

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#include <string.h>  
#include <stdio.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <time.h>  
#include <dirent.h>

static int do_mkdir(const char *path, mode_t mode) 
{     
	struct stat     st;     
	int             status = 0;      
	if (stat(path, &st) != 0)     
	{         /* Directory does not exist */         
		if (mkdir(path, mode) != 0)             
			status = -1;     
         }     
         else if (!S_ISDIR(st.st_mode))     
	{         
		errno = ENOTDIR;         
		status = -1;     
	}      
	return(status); 
}

/** ** mkpath - ensure all directories in path exist
 ** Algorithm takes the pessimistic view and works top-down to ensure 
 ** each directory in path exists, rather than optimistically creating 
 ** the last element and working backwards. */ 
 static int mkpath(const char *path, mode_t mode) 
 {     
 	  char           *pp;     
 	  char           *sp;     
 	  int             status;     
 	  char           *copypath = strdup(path);      status = 0;     pp = copypath;     
 	  while (status == 0 && (sp = strchr(pp, '/')) != 0)     
 	  {         
 	  	if (sp != pp)         
 	  	{             /* Neither root nor double slash in path */             
 	  		*sp = '\0';      
 	  		printf("func(%s)line(%d), copypath(%s).\n", __func__, __LINE__, copypath);       
 	  		status = do_mkdir(copypath, mode);             
 	  		*sp = '/';         
 	  	}         
 	  	pp = sp + 1;     
 	  }     
 	  if (status == 0)         
 	  	status = do_mkdir(path, mode);     
 	  free(copypath); 
 	  printf("func(%s)line(%d).\n", __func__, __LINE__);      
 	  return (status); 
 }