The following code isn't working as expected ..
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdbool.h>
struct dest
{
char filename[20], keyword[20];
bool opened;
FILE * stream;
};
void display_data(const struct dest p) {
printf("Keyword: %s, Filename: %s, Used: %s\n", p.keyword, p.filename, p.opened ? "Yes" : "No");
}
int main(int argc, char const *argv[])
{
// float lon, lat;
// char info[80];
if ((argc+1) % 2) {
fprintf(stderr, "Usage: %s file_to_read file_for_unknown type file type file ...\n", argv[0]);
return 2;
}
if (access(argv[1], F_OK) == -1) {
fprintf(stderr, "File can't be accessed: %s\n", argv[1]);
return 2;
}
const short pairs = (argc-3)/2;
struct dest data[pairs];
short times = 4;
for(short i = 4; i < argc; i += 2) {
struct dest data[i-times];
data[i-times].opened = false;
strcpy(data[i-times].keyword, argv[i-1]);
strcpy(data[i-times].filename, argv[i]);
// display_data(data[i-times]);
times += 1;
}
display_data(data[0]);
return 0;
}
That's what happens when I try to run it ..
./categorize spooky.csv other.csv UFO UFOS.csv
Keyword: ?, Filename: �#, Used: No
Which isn't that meaningful ..
I have been trying to work out the solution .. in vein ..
I don't understand where the problem is ..
Arguments are parsed as follows:
The first argument: the file the program is supposed to read from (ignored for now)
The second argument: the file the program is supposed to store at any unknown info found in the spooky.csv file (also, ignored in this implementation)
The other arguments: they are parsed as pairs, the first is the keyword, the second is the file ..
My Solution for this filtering problem was to create an array of structs, and within each struct I store the keyword, the filename and the file io stream (which i am ignoring, for now) ..
Any help would be highly appreciated ..
You have 2 struct dest data[] arrays. The inner one is masking the outer - get rid of it.
Your compiler is probably warning about this, if you have warnings turned on.
Related
Using libfuse in my c-project, I 'm trying to add custom command-line arguments and handle them.
Here is an example on which I rely
https://github.com/libfuse/libfuse/wiki/Option-Parsing
First, I tried to do the argument for the mount point configuration -с <pathtoconfig>
I tried many ways to describe an option like -c --config conf= -o conf=, but ineffectually
Please, help me find the right path to solve the problem :(
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <fuse.h>
#include "fuu_walk.h"
#include "jsmnload.h"
#define _JSMN_TOKEN_SIZE_ 256
#define _JSMN_BUFFER_SIZE_ 4096
#define MYFS_OPT(t, p, v) { t, offsetof(struct myfs_config, p), v }
struct myfs_config {
char *mystring;
} conf;
static struct fuse_opt myfs_opts[] = {
MYFS_OPT("-c %s", mystring, 1),
FUSE_OPT_END
};
jsmntok_t t[_JSMN_TOKEN_SIZE_];
char buf[_JSMN_BUFFER_SIZE_];
#if 0
= ""
"{\"root\": ["
"{\"path\":\"/\", \"mode\":\"drw-------\"},"
"{\"path\":\"/12ABC345DE67\", \"mode\":\"drw-------\"},"
"{\"path\":\"/12ABC345DE67/_XQ01\", \"mode\":\"-rw-------\"},"
"{\"path\":\"/12ABC345DE67/_XQ02\", \"mode\":\"-rw-------\"},"
"{\"path\":\"/12ABC345DE78\", \"mode\":\"drw-------\"},"
"{\"path\":\"/12ABC345DE89\", \"mode\":\"drw-------\"}"
"]}";
#endif
static int myfs_opt_proc(void *data, const char *arg, int key, struct fuse_args *outargs)
{
struct myfs_config *ptr = (struct myfs_config *)data;
FILE *conf;
int rc = 0;
//I wanna check the argument on the each iteration of fuse_opt_parse. It's just the debug printf
printf("arg = %s\t string %s\t key = %i\n", arg, ptr->mystring, key);
switch (key) {
case 1:
conf = fopen(ptr->mystring, "r");
rc = read(fileno(conf), buf, _JSMN_BUFFER_SIZE_);
if ( jsmnload(buf, t, _JSMN_TOKEN_SIZE_, fuu_mkfstree) < 0 ) {
printf("Error load configuration\n");
exit(-1);
}
}
return 1;
}
int main(int argc, char *argv[])
{
struct fuse_args args = FUSE_ARGS_INIT(argc, argv);
memset(&conf, 0, sizeof(conf));
fuse_opt_parse(&args, &conf, myfs_opts, myfs_opt_proc);
return fuu_main(args.argc, args.argv);
}
Launch example
./appendix/fuu /mnt/cdrom/ -c /mnt/fs.json
As a result, printf in myfs_opt_proc function works only once and outputs
arg = /mnt/cdrom/ string (null) key = -2
Why myfs_opt_proc does not work for option -c?
I cannot comment so as an answer... looking at the reference you provided it seems to me that there is no option starting with -c. So result seems correct because fuse cannot parse this. Look at this snippet from your link:
fuse_opt_add_arg(&args, "-omodules=subdir,subdir=/foo");
You may try to announce options to fuse using -o.
Edit: Youre example differs from the linked one, try to add to following line to the defined struct:
FUSE_OPT_KEY("-c", "KEY_CONFIG");
and some line before
emum {
KEY_CONFIG
};
and parse it like this in youre myfs_opt_proc function
switch (key) {
case KEY_CONFIG:
/* ... */
. Summed up you missed declaring the -c key.
I will go ahead and say this is a homework assignment for an intro to Linux class. I would not be posting it without extensive attempts on my own, and seeing as I am a distance student this semester, I cannot make it to campus for tutoring. I need some help finding out what the issue is.
Essentially the assignment asks us to make a program that serves the same basic function as the pwd command in POSIX, to show the absolute path for the current directory. We are to use three functions along with main. We are not to use the getcwd command as well. I'll list them and their purpose
inum_to_filename: Accepts three arguments (inode number to translate, a pointer to a buffer where the name is written, and the size of the buffer). Returns nothing. It is to:
Open the current directory,
Read the first directory entry,
If the inode of the current directory matches the one passed in, copy name to buffer and return.
Otherwise read the next directory entry and repeat the previous step.
filename_to_inum: Accepts one argument (a char * representing the filename). It returns the corresponding inode number. It is to:
Read the information from the files inode into a structure in memory.
If there is any problem, display the appropriate error.
Return the inode number from the structure.
display_path: Accepts one argument (inode from the current working directory). It returns nothing. It is to:
Create an array of characters to use as a buffer for the name of the directory.
Get the inode for the parent directory using filename_to_inode.
If the parent inode is equal to the current inode, we have reached root and can return.
Otherwise, change to the parent directory and use inum_to_filename to find the name for the inode that was passed into the function. Use the buffer from step 1 to store it.
Recursively call display_path to display the absolute path.
Here is the code:
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <dirent.h>
#include <sys/stat.h>
void inum_to_filename (int inode_arg, char *pathBuffer, int size_arg) {
DIR *dir_ptr = opendir(".");
struct dirent *dirent_ptr = readdir(dir_ptr);
int counter = 0;
while (counter != 1) {
if (inode_arg == dirent_ptr->d_ino) {
strcat(pathBuffer, "/");
strcat(pathBuffer, dirent_ptr->d_name);
counter = counter + 1;
return;
} else {
dirent_ptr = readdir(dir_ptr);
}
}
closedir(dir_ptr);
}
int filename_to_inum (char *src) {
int res = 0;
struct stat info;
int result = stat(src, &info);
if (result != 0) {
fprintf(stderr, "Cannot stat ");
perror(src);
exit(EXIT_FAILURE);
} else {
res = info.st_ino;
}
return res;
}
void display_path (int ino_src) {
int bufSize = 4096;
char pathBuffer[bufSize];
int ino_prnt = filename_to_inum("..");
if (ino_src == ino_prnt) {
//print for test
inum_to_filename(ino_src, pathBuffer, bufSize);
printf("%s", pathBuffer);
return;
} else {
//print for test
chdir("..");
inum_to_filename(ino_src, pathBuffer, bufSize);
display_path(ino_prnt);
printf("%s", pathBuffer);
}
}
int main (int argc, char *argv[]) {
int c_ino = filename_to_inum(".");
display_path(c_ino);
printf("\n");
}
As of right now it is displaying "/./MyName" with MyName being my personal named directory on the server. It is the directory I am running the program from. When using pwd I return "/home/MyName". I'm not really sure what my next step to getting the absolute path correct is.
The code is mostly set up to print one name at a time in the correct order, so the primary problem is the use of strcat() rather than strcpy(). Also, detecting when you're in the root directory at the start is important; if you don't, you can end up with /. or something similar (depending on exactly how you coordinate the printing) when the current directory is the root directory.
This version of your code has:
Squished the loop in inum_to_filename(), but also added error reporting. Remember, a process can be run in a directory which it does not have permission to get to (it requires a setuid program, usually — although permissions could be changed after the program is launched). In that case, it may fail to open .. (or .).
Lost variable count; it wasn't serving a useful purpose. Using the assign-and-test idiom allows the code to contain a single call to readdir().
Use strcpy() instead of strcat().
Use type ino_t to store inode numbers. Use size_t for sizes.
Reduce number of intermediate variables in filename_to_inum().
Note that the code in the if (ino_src == ino_prnt) statement body is for the root directory; in the absence of the testing print, it would do nothing.
Note that the printing in the else part is a major part of the operations, not just test printing.
Error check chdir("..");
Detect root in main().
Observe that this code is not directly suitable for rewriting into a function because it changes the process's current directory to / when it succeeds.
Revised code:
#include <assert.h>
#include <dirent.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
static void inum_to_filename(ino_t inode_arg, char *pathBuffer, size_t size_arg)
{
assert(size_arg > 0);
DIR *dir_ptr = opendir(".");
if (dir_ptr == 0)
{
fprintf(stderr, "Failed to open directory '.' (%d: %s)\n", errno, strerror(errno));
exit(EXIT_FAILURE);
}
struct dirent *dirent_ptr;
while ((dirent_ptr = readdir(dir_ptr)) != 0)
{
if (inode_arg == dirent_ptr->d_ino)
{
if (strlen(dirent_ptr->d_name) >= size_arg)
{
fprintf(stderr, "File name %s too long (%zu vs %zu max)\n",
dirent_ptr->d_name, strlen(dirent_ptr->d_name), size_arg);
exit(EXIT_FAILURE);
}
strcpy(pathBuffer, dirent_ptr->d_name);
break;
}
}
closedir(dir_ptr);
}
static ino_t filename_to_inum(char *src)
{
struct stat info;
if (stat(src, &info) != 0)
{
fprintf(stderr, "Cannot stat ");
perror(src);
exit(EXIT_FAILURE);
}
return info.st_ino;
}
static void display_path(ino_t ino_src)
{
size_t bufSize = 4096;
char pathBuffer[bufSize];
ino_t ino_prnt = filename_to_inum("..");
if (ino_src == ino_prnt)
{
// print for test
inum_to_filename(ino_src, pathBuffer, bufSize);
printf("%s", "(root): /\n");
}
else
{
// print for real
if (chdir("..") != 0)
{
fprintf(stderr, "Failed to chdir to .. (%d: %s)\n",
errno, strerror(errno));
}
inum_to_filename(ino_src, pathBuffer, bufSize);
display_path(ino_prnt);
printf("/%s", pathBuffer);
}
}
int main(void)
{
ino_t c_ino = filename_to_inum(".");
ino_t r_ino = filename_to_inum("/");
if (r_ino == c_ino)
putchar('/');
else
display_path(c_ino);
printf("\n");
}
There are undoubtedly other ways to fix this.
Caveat: this is giving me some grief when working in /Volumes/CRUZER/Sub-Directory which is a memory stick. It fails to find the inode (1, which is surprising) when scanning /Volumes, and I've not worked out why. One of my programs — a getpwd implementation — is working fine; another is having a different problem. I expect I'll get to the bottom of it all. Testing on Mac OS X 10.10.5 with GCC 5.1.0.
this is really nice assignment :).
I read and tried your code, and it is almost correct. There were two small issues which were causing the incorrect behaviour.
First issue
When display_path reaches the root folder you don't need to call inum_to_filename and print the name of the folder because you have already printed the first folder of the path in the previous iteration. This prevents your code from showing a "./" in the beginning of the path.
That is, the if condition becomes:
if (ino_src == ino_prnt) {
return;
} else {
chdir("..");
inum_to_filename(ino_src, pathBuffer, bufSize);
display_path(ino_prnt);
printf("%s", pathBuffer);
}
Second Issue:
You're not initializing propertly the buffer where you save the name of the directory. This causes random values to be displayed. To solve this issue you can just set the initial value of the buffer to zero by using memset.
void inum_to_filename (int inode_arg, char *pathBuffer, int size_arg) {
DIR *dir_ptr = opendir(".");
struct dirent *dirent_ptr = readdir(dir_ptr);
int counter = 0;
memset(pathBuffer, 0, size_arg);
while (counter != 1) {
...
}
closedir(dir_ptr);
}
Full code working :
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <dirent.h>
#include <sys/stat.h>
void inum_to_filename (int inode_arg, char *pathBuffer, int size_arg) {
DIR *dir_ptr = opendir(".");
struct dirent *dirent_ptr = readdir(dir_ptr);
int counter = 0;
memset(pathBuffer, 0, size_arg);
while (counter != 1) {
if (inode_arg == dirent_ptr->d_ino) {
strcat(pathBuffer, "/");
strcat(pathBuffer, dirent_ptr->d_name);
counter = counter + 1;
return;
} else {
dirent_ptr = readdir(dir_ptr);
}
}
closedir(dir_ptr);
}
int filename_to_inum (char *src) {
int res = 0;
struct stat info;
int result = stat(src, &info);
if (result != 0) {
fprintf(stderr, "Cannot stat ");
perror(src);
exit(EXIT_FAILURE);
} else {
res = info.st_ino;
}
return res;
}
/*
- Create an array of characters to use as a buffer for the name of the directory.
- Get the inode for the parent directory using filename_to_inode.
- If the parent inode is equal to the current inode, we have reached root and can return.
- Otherwise, change to the parent directory and use inum_to_filename to find the name for
the inode that was passed into the function. Use the buffer from step 1 to store it.
- Recursively call display_path to display the absolute path.
*/
void display_path (int ino_src) {
int bufSize = 4096;
char pathBuffer[bufSize];
int ino_prnt = filename_to_inum("..");
if (ino_src == ino_prnt) {
return;
} else {
chdir("..");
inum_to_filename(ino_src, pathBuffer, bufSize);
display_path(ino_prnt);
printf("%s", pathBuffer);
}
}
int main (int argc, char *argv[]) {
int c_ino = filename_to_inum(".");
display_path(c_ino);
printf("\n");
}
Output :
ubuntu#ubuntu-VirtualBox:~/dev$ vi pwd.c
ubuntu#ubuntu-VirtualBox:~/dev$ gcc pwd.c
ubuntu#ubuntu-VirtualBox:~/dev$ ./a.out
/home/ubuntu/dev
ubuntu#ubuntu-VirtualBox:~/dev$ pwd
/home/ubuntu/dev
ubuntu#ubuntu-VirtualBox:~/dev$
I am completing cs50x (the edX (free) version of the Harvard cs50) course and am trying to be a bit tricky/lazy/test myself.
I am trying to use a C program to create all the directories I will need for my psets.
I have looked online and found that <sys/stat.h> includes the mkdir() function and therefore tried creating some nested loops to create all the necessary folders by doing something similar to mkdir {pset1,pset1/{standard,hacker},pset2,pset2{standard... to give me a directory structure like this:
pset1/Standard
pset1/Hacker
pset2/Standard
etc...
I came up with this:
#include <cs50.h>
#include <stdio.h>
#include <sys/stat.h>
int main(int argc, string argv[])
{
for(int i = 1; i <=8; i++)
{
string dir = argv[1];
sprintf(dir,"%s%i", argv[1], i);
mkdir(dir, 0777);
for(int j = 0; j<2; j++)
{
string subDir[] = {"Standard","Hacker"};
sprintf(dir,"%s%i/%s", argv[1], i, subDir[j]);
mkdir(dir, 0777);
}
}
}
However, the program only creates pset1 and completes, there are no subfolders, no pset2 etc.
Yes, you're being lazy since you seem to have very little knowledge of C, yet try to program in it. :)
C is not Python, there is no string interpolation/formatting operator. You have to call a function, specificially snprintf(). Read that manual page.
Also, you can't create a bunch of nested directories with a single call to mkdir(). Read the manual page.
To create nested directories, you're either going to have to build each's absolute path (i.e. each successive time you call mkdir() the path will be longer than the previous time), or actually enter each directory as you create it, and go from there.
To create a full path you can call mkdir() recursivly like this:
#include <limits.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
int mkdirr(const char * path, const mode_t mode, const int fail_on_exist)
{
int result = 0;
char * dir = NULL;
do
{
if (NULL == path)
{
errno = EINVAL;
result = -1;
break;
}
if ((dir = strrchr(path, '/')))
{
*dir = '\0';
result = mkdirr(path, mode, fail_on_exist);
*dir = '/';
if (result)
{
break;
}
}
if (strlen(path))
{
if ((result = mkdir(path, mode)))
{
char s[PATH_MAX];
sprintf(s, "mkdir() failed for '%s'", path);
perror(s);
if ((EEXIST == result) && (0 == fail_on_exist))
{
result = 0;
}
else
{
break;
}
}
}
} while (0);
return result;
}
And then call mkdirr() like this;
int main(void)
{
char p[] = "test/1/2/3";
if (-1 == mkdirr(p, 0777, 0))
{
perror("mkdirr() failed()");
}
return 0;
}
The following code doesn't behave as expected ..
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdbool.h>
struct dest
{
char filename[20], keyword[20];
bool opened;
FILE * file;
};
void display_data(const struct dest p) {
printf("Keyword: %s, Filename: %s, Used: %s\n", p.keyword, p.filename, p.opened ? "Yes" : "No");
}
int main(int argc, char const *argv[])
{
// declaring variables
float lon, lat;
char info[80];
FILE *reader;
// checking required arguments
if ((argc+1) % 2 || argc < 2) {
fprintf(stderr, "Usage: %s file_to_read file_for_unknown type file type file ...\n", argv[0]);
return 2;
}
// opening the reader
if (!(reader = fopen(argv[1], "r"))) {
fprintf(stderr, "File can't be accessed: %s\n", argv[1]);
return 2;
}
// creating important globals
const short pairs = (argc-3)/2;
struct dest data[pairs];
struct dest other;
strcpy(other.filename, argv[2]);
other.opened = false;
// gathering data
short times = 4;
for(short i = 4; i < argc; i += 2) {
data[i-times].opened = false;
strcpy(data[i-times].keyword, argv[i-1]);
strcpy(data[i-times].filename, argv[i]);
times += 1;
}
// finally, scanning the file ..
struct dest *use_f; // pointer for the wanted destination ..
bool known;
while (fscanf(reader, "%f,%f,%79[^\n]", &lat, &lon, info)) {
// deciding which file to use ..
known = false;
for(short i=0; i < pairs; ++i) {
if (strstr(info, data[i].keyword)) {
known = true;
use_f = &data[i];
}
}
if (!(known)) {
use_f = &other;
}
// checking the file ..
if (!((*use_f).opened)) {
(*use_f).file = fopen((*use_f).filename, "w");
(*use_f).opened = true;
}
// writing to the file ..
fprintf((*use_f).file, "%f,%f,%s\n", lat, lon, info);
}
// closing all data streams, and informing user ..
for (short i=0; i < pairs; ++i) {
display_data(data[i]);
if (data[i].opened) {
fclose(data[i].file);
data[i].opened = false;
}
}
fclose(reader);
fclose(other.file);
return 0;
}
The command used to run it is this ..
./categorize spooky.csv other.csv UFO UFOS.csv # I get no output at all
It seems that the while loop doesn't actually end, which is mysterious, because the file (spooky.csv) is only 11 lines !
30.685163,-68.137207,Type=Yeti
28.304380,-74.575195,Type=UFO
29.132971,-71.136475,Type=Ship
28.343065,-62.753906,Type=Elvis
27.868217,-68.005371,Type=Goatsucker
30.496017,-73.333740,Type=Disappearance
26.224447,-71.477051,Type=UFO
29.401320,-66.027832,Type=Ship
37.879536,-69.477539,Type=Elvis
22.705256,-68.192139,Type=Elvis
27.166695,-87.484131,Type=Elvis
It just keeps writing to other.file, yet I don't know why ..
The program simply doesn't end, can anybody explain things to me ?
From the fscanf() manpage: "The value EOF is returned if an input failure occurs before any conversion (such as an end-of-file) occurs."
Here's a hint... EOF isn't equal to 0. Your while-loop never terminates.
All the folders have the size 4096 B.
How do I get the total size of a folder with all the file size inside?
For example:
> Dir1 (4096)
> -- File1.txt (100)
> -- Dir 2 (4096)
> ---- File2.txt (100)
When I try to get the size of Dir1, it gives me 4096.
The expected answer I wish to get is 8392
Another example:
DirA (4096)
-- FileA (100)
-- FileB (100)
The total should be 4296
I'm trying to figure out the algorithm but I can't find a way to detect if it's a folder or not. Sorry for the "vulgar" code below...
DIR *dir;
struct dirent *dp;
struct stat fileStat;
int getTotalDirSize()
{
while()
{
if(/*Detect Folder/Directory*/)
{
totalSize += 4096;
getTotalDirSize();
}
else
{
totalSize += fileSize;
}
}
return totalSize;
}
Note: I'm using the struct stat to get the size and the file/folder name.
Its working using with stat but only you have to do is give complete path to the stat like in your example Dir1->4096B then if you want to know size of the File1.txt use in stat like this:
strcpy(str,Dir1); //str is a string
strcat(str,"/");
strcat(str,filename);
Then use str in stat to get size of that file. I think here you have to use dirent structure and DIR for folder and its contents.
For finding folder use d_type = 4 for dirent structure pointer. For recursive action put all in one separate function and call it recursively until folder search completes.
struct stat buf;
DIR *dptr;
struct dirent *sdir;
int size=0;
char str[100];
dptr=opendir(folder);
while(sdir=readdir(dptr))
{
if(sdir->d_type==4)
{
if(sdir->d_name[0]!='.')
{
stat(sdir->d_name,&buf);
size=buf.st_size;
pf("size=%d\n",size);
}
}
else
{
strcpy(str,folder);
strcat(str,"/");
strcat(str,sdir->d_name);
stat(str,&buf);
size+=buf.st_size;
pf("size=%d\n",size);
}
}
I was just searching for a solution to this same problem when I encountered this thread and some others here on SO dealing with equal or similar problems (I found at the end 3 different codes aimed to calculate the total size of a folder with pure C). Unfortunately none of them worked by themselves or were incomplete, so I had to improve them (merging one into the other) and I came to the following complete and working code-and-example (should be put inside a main.c file, the exact folder changed and then just run). I hope it helps!
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <stdint.h>
#include <string.h>
#include <dirent.h>
#include <sys/stat.h>
int readFolderSize(int* totalSize, char* folder)
{
char fullPath[256];
struct dirent *dirData;
struct stat buffer;
int exists;
DIR *poDir;
int resp = EXIT_SUCCESS;
poDir = opendir(folder);
if (poDir == NULL)
{
perror("general_getFolderSize: poDir fail!");
return EXIT_FAILURE;
}
while ((dirData = readdir(poDir)))
{
if (dirData == NULL)
{
const unsigned int err = errno;
fprintf(stderr, "general_getFolderSize: Failed in readdir (%u)\n",err);
resp = EXIT_FAILURE;
continue;
}
//
if (dirData->d_type == DT_DIR)
{
if (dirData->d_name[0] != '.')
{
//printf("general_getFolderSize: Is a directory: %s\n", dirData->d_name);
strcpy(fullPath,folder);
strcat(fullPath,"/");
strcat(fullPath,dirData->d_name);
//printf("general_getFolderSize: Accessing dir: %s\n", fullPath);
if (readFolderSize(totalSize,fullPath) == EXIT_FAILURE)
resp = EXIT_FAILURE;
}
}
else
{
strcpy(fullPath,folder);
strcat(fullPath,"/");
strcat(fullPath,dirData->d_name);
exists = stat(fullPath,&buffer);
if (exists < 0)
{
const unsigned int err = errno;
fprintf(stderr, "general_getFolderSize: Failed in stat (file) %s: %u\n", fullPath,err);
resp = EXIT_FAILURE;
continue;
}
else
{
(*totalSize) += buffer.st_size;
//printf("general_getFolderSize: Item size (file) (%s): %d\n",fullPath,(int)buffer.st_size);
}
}
}
closedir(poDir);
return resp;
}
/*!
* \brief general_getFolderSize returns the size of a folder in bytes.
* \param folder is the name of the folder (preferentially without a '/' at the end)
* \param totalSize is a pointer where the result value is given
* \return
*/
int general_getFolderSize(char* folder, int* totalSize)
{
printf("general_getFolderSize: Start\n");
//
if (readFolderSize(totalSize,folder) == EXIT_FAILURE)
{
perror("general_getFolderSize: Call to readFolderSize failed!");
return EXIT_FAILURE;
}
//
printf("general_getFolderSize: Stop\n");
return EXIT_SUCCESS;
}
int main()
{
int folderSize;
if (general_getFolderSize("/home/maiquel/Documents/TEMP/maindir",&folderSize) == EXIT_FAILURE)
{
printf("Error reading folder size!");
}
else
{
printf("Folder size: %d b (%d kb / %d Mb)\n", folderSize, folderSize/1024, folderSize/(1024 * 1024));
}
return EXIT_SUCCESS;
}
P.s.: Although I'm aware that EXIT_SUCCESS and EXIT_FAILURE are not supposed to be used as function return values, I preferred to do so instead of creating new defines in the name of code simplicity.