www.nico.schottelius.org/software/cinit/browse_source/cinit-0.3pre15/contrib+tools/cinit.graph.text.c

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/**
(c) 2005 Peter Portmann (pp at bluewin.ch)
cinit.graph.text.c
This script is written for the clinux-System and published
under the terms of GPL 2.0
Version: 0.2
ChangeLog:
Version 0.2 (Peter Portmann):
* Not assigned link destinies are marked by (!).
* Not readable directories are marked by "directory not readable".
Version 0.1 (Peter Portmann):
* Print of the directory structure of the contained files and links
without following the links.
Todo:
Features:
*/
//#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
//#include "cinit.h"
#include "error.h"
#define FTW_F 1 /* file isn't a directory */
#define FTW_D 2 /* file is a directory */
#define FTW_DNR 3 /* not readable directory */
#define FTW_NS 4 /* unsuccesfully stat on this file */
#define MAX_CHAR 4096
/***********************************************************************
* cinit.graph.text - textual representation of the cinit directory
*/
#define CSERVICE_BANNER "cinit.graph.text - textual representatio of the cinit directory\n\n"
#define USAGE_TEXT "\n\nUsage:\n\ncinit.graph.text <path>\n" \
"\tpath\t- cinit installationpath\n"
typedef int EACH_ENTRY(const char *, const struct stat *, int);
typedef enum { FALSE=0, TRUE=1 } bool;
static char dirpath[PATH_MAX];
static int depth = 0;
static long int filecount = 0;
static EACH_ENTRY each_entry;
static int pp_ftw(char *, EACH_ENTRY *);
static int each_getinfo(EACH_ENTRY *);
/***********************************************************************
* pp_ftw: file tree walk
*/
static int pp_ftw(char *filepath, EACH_ENTRY *function)
{
int n;
if(chdir(filepath) < 0) /* In angegebenen Pfad wechseln */
err_msg(FATAL_SYS, "can't change to %s", filepath);
if(getcwd(dirpath, PATH_MAX) == 0) /* Absoluten Pfadnamen ermitteln */
err_msg(FATAL_SYS, "error using getcwd for %s", filepath);
n = each_getinfo(function);
return(n);
}
/***********************************************************************
* each_getinfo: get more info for each file.
*/
static int each_getinfo(EACH_ENTRY *function)
{
struct stat statpuff;
struct dirent *direntz;
DIR *dirz;
int n;
char *zgr;
if(lstat(dirpath, &statpuff) < 0)
return(function(dirpath, &statpuff, FTW_NS)); /* Error on stat */
if(S_ISDIR(statpuff.st_mode) == 0)
return(function(dirpath, &statpuff, FTW_F)); /* no directory */
/* It's a directory.
* Call function() for it. After that handel each file in the directory. */
if((dirz = opendir(dirpath)) == NULL) { /* Directory not readable */
closedir(dirz);
return(function(dirpath, &statpuff, FTW_DNR));
}
if((n = function(dirpath, &statpuff, FTW_D)) != 0) /* return the directorydirpath */
return(n);
zgr = dirpath + strlen(dirpath); /* append slash to the dirpathname */
*zgr++ = '/';
*zgr = '\0';
while((direntz = readdir(dirz)) != NULL) {
/* ignor . and .. */
if(strcmp(direntz->d_name, ".") && strcmp(direntz->d_name, "..")) {
strcpy(zgr, direntz->d_name); /* append filename after slash */
depth++;
if(each_getinfo(function) != 0) { /* Recursion */
depth--;
break;
}
depth--;
}
}
*(zgr-1) = '\0'; /* deleting evrything after the slash */
if(closedir(dirz) < 0)
err_msg(WARNING, "closedir for %s failed", dirpath);
return(n);
}
/***********************************************************************
* each_entry: handling each file and build the graph step by step.
*/
static int each_entry(const char *filepath, const struct stat *statzgr, int filetype)
{
struct stat statpuff;
static bool erstemal=TRUE;
int i;
char link[MAX_CHAR];
filecount++;
if(!erstemal) {
for(i=1 ; i<=depth ; i++)
printf("%4c|", ' ');
printf("----%s", strrchr(filepath, '/')+1);
} else {
printf("%s", filepath);
erstemal = FALSE;
}
switch(filetype) {
case FTW_F:
switch(statzgr->st_mode & S_IFMT) {
case S_IFREG: break;
case S_IFCHR: printf(" c"); break;
case S_IFBLK: printf(" b"); break;
case S_IFIFO: printf(" f"); break;
case S_IFLNK:
printf(" -> ");
if(( i=readlink(filepath, link, MAX_CHAR)) != -1)
printf("%.*s", i, link);
if(stat(filepath, &statpuff) < 0)
printf(" (!)");
break;
case S_IFSOCK: printf(" s"); break;
default: printf(" ?"); break;
}
printf("\n");
break;
case FTW_D:
printf("/\n");
break;
case FTW_DNR:
printf("/ directory not readable\n");
break;
case FTW_NS:
err_msg(WARNING_SYS, "Error using 'stat' on file %s", filepath);
break;
default:
err_msg(FATAL_SYS, "Unknown Filetype (%d) by file %s", filetype, filepath);
break;
}
return(0);
}
/***********************************************************************
* main:
*/
int main(int argc, char *argv[])
{
if(argc != 2)
usage(CSERVICE_BANNER, USAGE_TEXT);
exit(pp_ftw(argv[1], each_entry));
}