dev-cpp-users

Re: [Dev-C++] How to get application directory?

[<sub...@ar...>]

What I actually wanted is the directory where the binary application is stored...
Anybody knows how to get it?

Thanks again,
Josep

----- Original Nachricht ----
Von:     Per Westermark <pw...@ia...>
An:      Kevin Wood <ke...@me...>
Datum:   09.03.2004 10:28
Betreff: Re: [Dev-C++] How to get application directory?

> The question was which directory the application is running in - not where
> the application binary is stored.
> 
> /Per W
> 
> On Tue, 9 Mar 2004, Kevin Wood wrote:
> 
> > getcwd()  returns the current working directory, which is not necessarily
> > the same as the directory in which the application resides.
> >
> > At 08:10 09/03/04, Per Westermark wrote:
> > >getcwd() or _getcwd().
> > >
> > >/Per W
> > >
> > >On Tue, 9 Mar 2004, Josep Subirana wrote:
> > >
> > > > Hi,
> > > >
> > > > Do you know how to get the directory where your c++ application is
> running
> > > > in?
> > > > This should be a simple question for most experienced c++
> programmers!
> > > >
> > > > Thanks,
> > > >
> > > > Josep
> > > >
> >
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by: IBM Linux Tutorials
> > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > GenToo technologies. Learn everything from fundamentals to system
> > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > _______________________________________________
> > Dev-cpp-users mailing list
> > Dev...@li...
> > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> >
> 
> 
> 
> -------------------------------------------------------
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> Free Linux tutorial presented by Daniel Robbins, President and CEO of
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Re: [Dev-C++] How to get application directory?

[Per W. <pw...@ia...>]

If the application was started with a path, you might retrieve it as
the arg[0] parameter of main().

If not, you have to search the path for an application with the correct
name. I don't think there is a standard function to perform this. If I'm
wrong, I very much want to know the name of the function, since it would
be useful :)

On Linux, it is possible to heck in the /proc filesystem. There exists a
symbolic link:
/proc/<process_id>/exe -> /my/running/binary
That will specify which binary that is running.

It may also be accessed as:
/proc/self/exe -> /my/running/binary
to avoid the extra trouble of retrieving process id and dynamically create
the path to the symbolic link.

/Per W

On Tue, 9 Mar 2004 sub...@ar... wrote:

> What I actually wanted is the directory where the binary application is stored...
> Anybody knows how to get it?
>
> Thanks again,
> Josep
>
> ----- Original Nachricht ----
> Von:     Per Westermark <pw...@ia...>
> An:      Kevin Wood <ke...@me...>
> Datum:   09.03.2004 10:28
> Betreff: Re: [Dev-C++] How to get application directory?
>
> > The question was which directory the application is running in - not where
> > the application binary is stored.
> >
> > /Per W
> >
> > On Tue, 9 Mar 2004, Kevin Wood wrote:
> >
> > > getcwd()  returns the current working directory, which is not necessarily
> > > the same as the directory in which the application resides.
> > >
> > > At 08:10 09/03/04, Per Westermark wrote:
> > > >getcwd() or _getcwd().
> > > >
> > > >/Per W
> > > >
> > > >On Tue, 9 Mar 2004, Josep Subirana wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > Do you know how to get the directory where your c++ application is
> > running
> > > > > in?
> > > > > This should be a simple question for most experienced c++
> > programmers!
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Josep
> > > > >
> > >
> > >
> > >
> > > -------------------------------------------------------
> > > This SF.Net email is sponsored by: IBM Linux Tutorials
> > > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > > GenToo technologies. Learn everything from fundamentals to system
> > > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > > _______________________________________________
> > > Dev-cpp-users mailing list
> > > Dev...@li...
> > > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> > >
> >
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by: IBM Linux Tutorials
> > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > GenToo technologies. Learn everything from fundamentals to system
> > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > _______________________________________________
> > Dev-cpp-users mailing list
> > Dev...@li...
> > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> >
>
>
>
>
>
>

RE: [Dev-C++] How to get application directory?

[P.D. v. Z. <pa...@my...>]

For the original poster: Don't know if it will help you, but in Win32 I get
the path to the running application like this:

char szBuf[512];
GetModuleFileName(NULL, szBuf, 512);

(if the call succeeded, szBuf now contains the full path to the current
module (executable))

To Per:
Thanks :D I forgot that lots of things are file (or pseudo-file) based in
Linux. But it appears that /proc/self/exe is a symlink to the current
binary... which brings me to a second problem: How do I get the target of a
symlink as a string or something :) Whenever I'm programming for Linux I
constantly run into problems, cause I have no clue where to get MSDN-like
information for Linux or POSIX.

Regards,


Paul

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Per
Westermark
Sent: Tuesday, March 09, 2004 1:14 PM
To: sub...@ar...
Cc: dev...@li...
Subject: Re: [Dev-C++] How to get application directory?

If the application was started with a path, you might retrieve it as
the arg[0] parameter of main().

If not, you have to search the path for an application with the correct
name. I don't think there is a standard function to perform this. If I'm
wrong, I very much want to know the name of the function, since it would
be useful :)

On Linux, it is possible to heck in the /proc filesystem. There exists a
symbolic link:
/proc/<process_id>/exe -> /my/running/binary
That will specify which binary that is running.

It may also be accessed as:
/proc/self/exe -> /my/running/binary
to avoid the extra trouble of retrieving process id and dynamically create
the path to the symbolic link.

/Per W

On Tue, 9 Mar 2004 sub...@ar... wrote:

> What I actually wanted is the directory where the binary application is
stored...
> Anybody knows how to get it?
>
> Thanks again,
> Josep
>
> ----- Original Nachricht ----
> Von:     Per Westermark <pw...@ia...>
> An:      Kevin Wood <ke...@me...>
> Datum:   09.03.2004 10:28
> Betreff: Re: [Dev-C++] How to get application directory?
>
> > The question was which directory the application is running in - not
where
> > the application binary is stored.
> >
> > /Per W
> >
> > On Tue, 9 Mar 2004, Kevin Wood wrote:
> >
> > > getcwd()  returns the current working directory, which is not
necessarily
> > > the same as the directory in which the application resides.
> > >
> > > At 08:10 09/03/04, Per Westermark wrote:
> > > >getcwd() or _getcwd().
> > > >
> > > >/Per W
> > > >
> > > >On Tue, 9 Mar 2004, Josep Subirana wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > Do you know how to get the directory where your c++ application is
> > running
> > > > > in?
> > > > > This should be a simple question for most experienced c++
> > programmers!
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Josep
> > > > >
> > >
> > >
> > >
> > > -------------------------------------------------------
> > > This SF.Net email is sponsored by: IBM Linux Tutorials
> > > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > > GenToo technologies. Learn everything from fundamentals to system
> > > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > > _______________________________________________
> > > Dev-cpp-users mailing list
> > > Dev...@li...
> > > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> > >
> >
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by: IBM Linux Tutorials
> > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > GenToo technologies. Learn everything from fundamentals to system
> > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > _______________________________________________
> > Dev-cpp-users mailing list
> > Dev...@li...
> > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> >
>
>
>
>
>
>



-------------------------------------------------------
This SF.Net email is sponsored by: IBM Linux Tutorials
Free Linux tutorial presented by Daniel Robbins, President and CEO of
GenToo technologies. Learn everything from fundamentals to system
administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
_______________________________________________
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RE: [Dev-C++] How to get application directory?

[Per W. <pw...@ia...>]

To read contents of a link on Linux, just call
readlink()

To reatrieve information about a link - instead of the file it points to,
use lstat() instead of stat().

/Per W

On Tue, 9 Mar 2004, P.D. van Zelst wrote:

> For the original poster: Don't know if it will help you, but in Win32 I get
> the path to the running application like this:
>
> char szBuf[512];
> GetModuleFileName(NULL, szBuf, 512);
>
> (if the call succeeded, szBuf now contains the full path to the current
> module (executable))
>
> To Per:
> Thanks :D I forgot that lots of things are file (or pseudo-file) based in
> Linux. But it appears that /proc/self/exe is a symlink to the current
> binary... which brings me to a second problem: How do I get the target of a
> symlink as a string or something :) Whenever I'm programming for Linux I
> constantly run into problems, cause I have no clue where to get MSDN-like
> information for Linux or POSIX.
>
> Regards,
>
>
> Paul
>
> -----Original Message-----
> From: dev...@li...
> [mailto:dev...@li...] On Behalf Of Per
> Westermark
> Sent: Tuesday, March 09, 2004 1:14 PM
> To: sub...@ar...
> Cc: dev...@li...
> Subject: Re: [Dev-C++] How to get application directory?
>
> If the application was started with a path, you might retrieve it as
> the arg[0] parameter of main().
>
> If not, you have to search the path for an application with the correct
> name. I don't think there is a standard function to perform this. If I'm
> wrong, I very much want to know the name of the function, since it would
> be useful :)
>
> On Linux, it is possible to heck in the /proc filesystem. There exists a
> symbolic link:
> /proc/<process_id>/exe -> /my/running/binary
> That will specify which binary that is running.
>
> It may also be accessed as:
> /proc/self/exe -> /my/running/binary
> to avoid the extra trouble of retrieving process id and dynamically create
> the path to the symbolic link.
>
> /Per W
>
> On Tue, 9 Mar 2004 sub...@ar... wrote:
>
> > What I actually wanted is the directory where the binary application is
> stored...
> > Anybody knows how to get it?
> >
> > Thanks again,
> > Josep
> >
> > ----- Original Nachricht ----
> > Von:     Per Westermark <pw...@ia...>
> > An:      Kevin Wood <ke...@me...>
> > Datum:   09.03.2004 10:28
> > Betreff: Re: [Dev-C++] How to get application directory?
> >
> > > The question was which directory the application is running in - not
> where
> > > the application binary is stored.
> > >
> > > /Per W
> > >
> > > On Tue, 9 Mar 2004, Kevin Wood wrote:
> > >
> > > > getcwd()  returns the current working directory, which is not
> necessarily
> > > > the same as the directory in which the application resides.
> > > >
> > > > At 08:10 09/03/04, Per Westermark wrote:
> > > > >getcwd() or _getcwd().
> > > > >
> > > > >/Per W
> > > > >
> > > > >On Tue, 9 Mar 2004, Josep Subirana wrote:
> > > > >
> > > > > > Hi,
> > > > > >
> > > > > > Do you know how to get the directory where your c++ application is
> > > running
> > > > > > in?
> > > > > > This should be a simple question for most experienced c++
> > > programmers!
> > > > > >
> > > > > > Thanks,
> > > > > >
> > > > > > Josep
> > > > > >
> > > >
> > > >
> > > >
> > > > -------------------------------------------------------
> > > > This SF.Net email is sponsored by: IBM Linux Tutorials
> > > > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > > > GenToo technologies. Learn everything from fundamentals to system
> > > > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > > > _______________________________________________
> > > > Dev-cpp-users mailing list
> > > > Dev...@li...
> > > > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > > > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> > > >
> > >
> > >
> > >
> > > -------------------------------------------------------
> > > This SF.Net email is sponsored by: IBM Linux Tutorials
> > > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > > GenToo technologies. Learn everything from fundamentals to system
> > > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > > _______________________________________________
> > > Dev-cpp-users mailing list
> > > Dev...@li...
> > > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> > >
> >
> >
> >
> >
> >
> >
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO of
> GenToo technologies. Learn everything from fundamentals to system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
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> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO of
> GenToo technologies. Learn everything from fundamentals to system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> Dev-cpp-users mailing list
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>

AW: [Dev-C++] How to get application directory?

[Josep S. <sub...@ar...>]

>>in Win32 I get
>>the path to the running application like this:
>>
>>char szBuf[512];
>>GetModuleFileName(NULL, szBuf, 512);
>>
>>(if the call succeeded, szBuf now contains the full path to the current
>>module (executable))

Hi Paul,

Thanks alot for your hint! I'm a bit new to API and I don't know with c++ if
I have to declare this function (GetModuleFileName()) in a header or what I
do have to do in order to being able to use this function you describe.
Could you help me on that too? (If I need a function declaration in my
header, could you please post it with the right variable types or point me
to a website where i can find those API function declarations???)

Thanks again,

Josep

BTW,
I've tried with the following code, but I don't know if the *working
directory* is always, at the beginning, the same as the directory where the
.exe file lies!!!

  const long size = 1000L;
  char *buf;
  char *cwd;
  //size = pathconf(".", _PC_PATH_MAX);

  cwd = getcwd(buf, (size_t)size) ;

  char flag[size] = "--datadir=";
  char *subdir =  "\\data";
  char *foo = strcat (buf, subdir);
  strcat(flag, foo);

  int argn = 3;
  char *arg[] = {
    argv[0], "c++", flag
  };

  mysql_server_init(argn, arg, (char **)server_groups);

-----Ursprungliche Nachricht-----
Von: dev...@li...
[mailto:dev...@li...]Im Auftrag von P.D.
van Zelst
Gesendet: Dienstag, 9. Marz 2004 17:33
Cc: dev...@li...
Betreff: RE: [Dev-C++] How to get application directory?


For the original poster: Don't know if it will help you, but in Win32 I get
the path to the running application like this:

char szBuf[512];
GetModuleFileName(NULL, szBuf, 512);

(if the call succeeded, szBuf now contains the full path to the current
module (executable))

To Per:
Thanks :D I forgot that lots of things are file (or pseudo-file) based in
Linux. But it appears that /proc/self/exe is a symlink to the current
binary... which brings me to a second problem: How do I get the target of a
symlink as a string or something :) Whenever I'm programming for Linux I
constantly run into problems, cause I have no clue where to get MSDN-like
information for Linux or POSIX.

Regards,


Paul

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Per
Westermark
Sent: Tuesday, March 09, 2004 1:14 PM
To: sub...@ar...
Cc: dev...@li...
Subject: Re: [Dev-C++] How to get application directory?

If the application was started with a path, you might retrieve it as
the arg[0] parameter of main().

If not, you have to search the path for an application with the correct
name. I don't think there is a standard function to perform this. If I'm
wrong, I very much want to know the name of the function, since it would
be useful :)

On Linux, it is possible to heck in the /proc filesystem. There exists a
symbolic link:
/proc/<process_id>/exe -> /my/running/binary
That will specify which binary that is running.

It may also be accessed as:
/proc/self/exe -> /my/running/binary
to avoid the extra trouble of retrieving process id and dynamically create
the path to the symbolic link.

/Per W

On Tue, 9 Mar 2004 sub...@ar... wrote:

> What I actually wanted is the directory where the binary application is
stored...
> Anybody knows how to get it?
>
> Thanks again,
> Josep
>
> ----- Original Nachricht ----
> Von:     Per Westermark <pw...@ia...>
> An:      Kevin Wood <ke...@me...>
> Datum:   09.03.2004 10:28
> Betreff: Re: [Dev-C++] How to get application directory?
>
> > The question was which directory the application is running in - not
where
> > the application binary is stored.
> >
> > /Per W
> >
> > On Tue, 9 Mar 2004, Kevin Wood wrote:
> >
> > > getcwd()  returns the current working directory, which is not
necessarily
> > > the same as the directory in which the application resides.
> > >
> > > At 08:10 09/03/04, Per Westermark wrote:
> > > >getcwd() or _getcwd().
> > > >
> > > >/Per W
> > > >
> > > >On Tue, 9 Mar 2004, Josep Subirana wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > Do you know how to get the directory where your c++ application is
> > running
> > > > > in?
> > > > > This should be a simple question for most experienced c++
> > programmers!
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Josep
> > > > >
> > >
> > >
> > >
> > > -------------------------------------------------------
> > > This SF.Net email is sponsored by: IBM Linux Tutorials
> > > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > > GenToo technologies. Learn everything from fundamentals to system
> > > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > > _______________________________________________
> > > Dev-cpp-users mailing list
> > > Dev...@li...
> > > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> > >
> >
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by: IBM Linux Tutorials
> > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > GenToo technologies. Learn everything from fundamentals to system
> > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > _______________________________________________
> > Dev-cpp-users mailing list
> > Dev...@li...
> > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> >
>
>
>
>
>
>



-------------------------------------------------------
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Free Linux tutorial presented by Daniel Robbins, President and CEO of
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_______________________________________________
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Dev...@li...
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-------------------------------------------------------
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Free Linux tutorial presented by Daniel Robbins, President and CEO of
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Re: AW: [Dev-C++] How to get application directory?

[Per W. <pw...@ia...>]

Wrong use of getcwd - it doesn't allocate any memory. You have to supply
the memory it should use.

When you create a shortcut, you can specify the working directory, i.e.
where the program should be started.

getcwd() will - on startup of the program - always return this directory.
However, using getcwd() you may use multiple shortcuts that specifies
different working directories. getcwd() will then return different paths.
However, if a user has specified two different working directories, I
thinkt that is an expected behaviour.

/Per W

On Tue, 9 Mar 2004, Josep Subirana wrote:

> >>in Win32 I get
> >>the path to the running application like this:
> >>
> >>char szBuf[512];
> >>GetModuleFileName(NULL, szBuf, 512);
> >>
> >>(if the call succeeded, szBuf now contains the full path to the current
> >>module (executable))
>
> Hi Paul,
>
> Thanks alot for your hint! I'm a bit new to API and I don't know with c++ if
> I have to declare this function (GetModuleFileName()) in a header or what I
> do have to do in order to being able to use this function you describe.
> Could you help me on that too? (If I need a function declaration in my
> header, could you please post it with the right variable types or point me
> to a website where i can find those API function declarations???)
>
> Thanks again,
>
> Josep
>
> BTW,
> I've tried with the following code, but I don't know if the *working
> directory* is always, at the beginning, the same as the directory where the
> .exe file lies!!!
>
>   const long size = 1000L;
>   //char *buf;
    char flag[size];
>   //char *cwd;
>   //size = pathconf(".", _PC_PATH_MAX);
>
    strcpy(flag,"--datadir=");
    getcwd(flag+strlen(flag),((size_t)size) - strlen(flag));
    if (strlen(flag) < size-5)
        strcat(flag,"\\data");
    else
        fail - too small buffer.

>   //cwd = getcwd(buf, (size_t)size) ;
>
>   //char flag[size] = "--datadir=";
>   //char *subdir =  "\\data";
>   //char *foo = strcat (buf, subdir);
>   //strcat(flag, foo);
>
>   int argn = 3;
>   char *arg[] = {
>     argv[0], "c++", flag
>   };
>
>   mysql_server_init(argn, arg, (char **)server_groups);
>
> -----Ursprungliche Nachricht-----
> Von: dev...@li...
> [mailto:dev...@li...]Im Auftrag von P.D.
> van Zelst
> Gesendet: Dienstag, 9. Marz 2004 17:33
> Cc: dev...@li...
> Betreff: RE: [Dev-C++] How to get application directory?
>
>
> For the original poster: Don't know if it will help you, but in Win32 I get
> the path to the running application like this:
>
> char szBuf[512];
> GetModuleFileName(NULL, szBuf, 512);
>
> (if the call succeeded, szBuf now contains the full path to the current
> module (executable))
>
> To Per:
> Thanks :D I forgot that lots of things are file (or pseudo-file) based in
> Linux. But it appears that /proc/self/exe is a symlink to the current
> binary... which brings me to a second problem: How do I get the target of a
> symlink as a string or something :) Whenever I'm programming for Linux I
> constantly run into problems, cause I have no clue where to get MSDN-like
> information for Linux or POSIX.
>
> Regards,
>
>
> Paul
>
> -----Original Message-----
> From: dev...@li...
> [mailto:dev...@li...] On Behalf Of Per
> Westermark
> Sent: Tuesday, March 09, 2004 1:14 PM
> To: sub...@ar...
> Cc: dev...@li...
> Subject: Re: [Dev-C++] How to get application directory?
>
> If the application was started with a path, you might retrieve it as
> the arg[0] parameter of main().
>
> If not, you have to search the path for an application with the correct
> name. I don't think there is a standard function to perform this. If I'm
> wrong, I very much want to know the name of the function, since it would
> be useful :)
>
> On Linux, it is possible to heck in the /proc filesystem. There exists a
> symbolic link:
> /proc/<process_id>/exe -> /my/running/binary
> That will specify which binary that is running.
>
> It may also be accessed as:
> /proc/self/exe -> /my/running/binary
> to avoid the extra trouble of retrieving process id and dynamically create
> the path to the symbolic link.
>
> /Per W
>
> On Tue, 9 Mar 2004 sub...@ar... wrote:
>
> > What I actually wanted is the directory where the binary application is
> stored...
> > Anybody knows how to get it?
> >
> > Thanks again,
> > Josep
> >
> > ----- Original Nachricht ----
> > Von:     Per Westermark <pw...@ia...>
> > An:      Kevin Wood <ke...@me...>
> > Datum:   09.03.2004 10:28
> > Betreff: Re: [Dev-C++] How to get application directory?
> >
> > > The question was which directory the application is running in - not
> where
> > > the application binary is stored.
> > >
> > > /Per W
> > >
> > > On Tue, 9 Mar 2004, Kevin Wood wrote:
> > >
> > > > getcwd()  returns the current working directory, which is not
> necessarily
> > > > the same as the directory in which the application resides.
> > > >
> > > > At 08:10 09/03/04, Per Westermark wrote:
> > > > >getcwd() or _getcwd().
> > > > >
> > > > >/Per W
> > > > >
> > > > >On Tue, 9 Mar 2004, Josep Subirana wrote:
> > > > >
> > > > > > Hi,
> > > > > >
> > > > > > Do you know how to get the directory where your c++ application is
> > > running
> > > > > > in?
> > > > > > This should be a simple question for most experienced c++
> > > programmers!
> > > > > >
> > > > > > Thanks,
> > > > > >
> > > > > > Josep
> > > > > >
> > > >
> > > >
> > > >
> > > > -------------------------------------------------------
> > > > This SF.Net email is sponsored by: IBM Linux Tutorials
> > > > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > > > GenToo technologies. Learn everything from fundamentals to system
> > > > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > > > _______________________________________________
> > > > Dev-cpp-users mailing list
> > > > Dev...@li...
> > > > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > > > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> > > >
> > >
> > >
> > >
> > > -------------------------------------------------------
> > > This SF.Net email is sponsored by: IBM Linux Tutorials
> > > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > > GenToo technologies. Learn everything from fundamentals to system
> > > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > > _______________________________________________
> > > Dev-cpp-users mailing list
> > > Dev...@li...
> > > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> > >
> >
> >
> >
> >
> >
> >
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO of
> GenToo technologies. Learn everything from fundamentals to system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO of
> GenToo technologies. Learn everything from fundamentals to system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
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> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO of
> GenToo technologies. Learn everything from fundamentals to system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>

Re: [Dev-C++] How to get application directory?

[Josep S. <sub...@ar...>]

Hi Per,

>>  strcpy(flag,"--datadir=");
>>    getcwd(flag+strlen(flag),((size_t)size) - strlen(flag));
>>    if (strlen(flag) < size-5)
>>        strcat(flag,"\\data");
>>    else
>>        fail - too small buffer.

Thank you for streamlining the code! Your version is much more elegant than
my "beginner" one.
I will try now to use the following function, in order to assure that the
size with which the buffer char array is defined, is enough to contain a
path...

	size = pathconf(".", _PC_PATH_MAX);



Thanks,

Josep




-----Ursprungliche Nachricht-----
Von: dev...@li...
[mailto:dev...@li...]Im Auftrag von Per
Westermark
Gesendet: Dienstag, 9. Marz 2004 19:35
An: Josep Subirana
Cc: DEV-C++
Betreff: Re: AW: [Dev-C++] How to get application directory?


Wrong use of getcwd - it doesn't allocate any memory. You have to supply
the memory it should use.

When you create a shortcut, you can specify the working directory, i.e.
where the program should be started.

getcwd() will - on startup of the program - always return this directory.
However, using getcwd() you may use multiple shortcuts that specifies
different working directories. getcwd() will then return different paths.
However, if a user has specified two different working directories, I
thinkt that is an expected behaviour.

/Per W

On Tue, 9 Mar 2004, Josep Subirana wrote:

> >>in Win32 I get
> >>the path to the running application like this:
> >>
> >>char szBuf[512];
> >>GetModuleFileName(NULL, szBuf, 512);
> >>
> >>(if the call succeeded, szBuf now contains the full path to the current
> >>module (executable))
>
> Hi Paul,
>
> Thanks alot for your hint! I'm a bit new to API and I don't know with c++
if
> I have to declare this function (GetModuleFileName()) in a header or what
I
> do have to do in order to being able to use this function you describe.
> Could you help me on that too? (If I need a function declaration in my
> header, could you please post it with the right variable types or point me
> to a website where i can find those API function declarations???)
>
> Thanks again,
>
> Josep
>
> BTW,
> I've tried with the following code, but I don't know if the *working
> directory* is always, at the beginning, the same as the directory where
the
> .exe file lies!!!
>
>   const long size = 1000L;
>   //char *buf;
    char flag[size];
>   //char *cwd;
>   //size = pathconf(".", _PC_PATH_MAX);
>
    strcpy(flag,"--datadir=");
    getcwd(flag+strlen(flag),((size_t)size) - strlen(flag));
    if (strlen(flag) < size-5)
        strcat(flag,"\\data");
    else
        fail - too small buffer.

>   //cwd = getcwd(buf, (size_t)size) ;
>
>   //char flag[size] = "--datadir=";
>   //char *subdir =  "\\data";
>   //char *foo = strcat (buf, subdir);
>   //strcat(flag, foo);
>
>   int argn = 3;
>   char *arg[] = {
>     argv[0], "c++", flag
>   };
>
>   mysql_server_init(argn, arg, (char **)server_groups);
>
> -----Ursprungliche Nachricht-----
> Von: dev...@li...
> [mailto:dev...@li...]Im Auftrag von P.D.
> van Zelst
> Gesendet: Dienstag, 9. Marz 2004 17:33
> Cc: dev...@li...
> Betreff: RE: [Dev-C++] How to get application directory?
>
>
> For the original poster: Don't know if it will help you, but in Win32 I
get
> the path to the running application like this:
>
> char szBuf[512];
> GetModuleFileName(NULL, szBuf, 512);
>
> (if the call succeeded, szBuf now contains the full path to the current
> module (executable))
>
> To Per:
> Thanks :D I forgot that lots of things are file (or pseudo-file) based in
> Linux. But it appears that /proc/self/exe is a symlink to the current
> binary... which brings me to a second problem: How do I get the target of
a
> symlink as a string or something :) Whenever I'm programming for Linux I
> constantly run into problems, cause I have no clue where to get MSDN-like
> information for Linux or POSIX.
>
> Regards,
>
>
> Paul
>
> -----Original Message-----
> From: dev...@li...
> [mailto:dev...@li...] On Behalf Of Per
> Westermark
> Sent: Tuesday, March 09, 2004 1:14 PM
> To: sub...@ar...
> Cc: dev...@li...
> Subject: Re: [Dev-C++] How to get application directory?
>
> If the application was started with a path, you might retrieve it as
> the arg[0] parameter of main().
>
> If not, you have to search the path for an application with the correct
> name. I don't think there is a standard function to perform this. If I'm
> wrong, I very much want to know the name of the function, since it would
> be useful :)
>
> On Linux, it is possible to heck in the /proc filesystem. There exists a
> symbolic link:
> /proc/<process_id>/exe -> /my/running/binary
> That will specify which binary that is running.
>
> It may also be accessed as:
> /proc/self/exe -> /my/running/binary
> to avoid the extra trouble of retrieving process id and dynamically create
> the path to the symbolic link.
>
> /Per W
>
> On Tue, 9 Mar 2004 sub...@ar... wrote:
>
> > What I actually wanted is the directory where the binary application is
> stored...
> > Anybody knows how to get it?
> >
> > Thanks again,
> > Josep
> >
> > ----- Original Nachricht ----
> > Von:     Per Westermark <pw...@ia...>
> > An:      Kevin Wood <ke...@me...>
> > Datum:   09.03.2004 10:28
> > Betreff: Re: [Dev-C++] How to get application directory?
> >
> > > The question was which directory the application is running in - not
> where
> > > the application binary is stored.
> > >
> > > /Per W
> > >
> > > On Tue, 9 Mar 2004, Kevin Wood wrote:
> > >
> > > > getcwd()  returns the current working directory, which is not
> necessarily
> > > > the same as the directory in which the application resides.
> > > >
> > > > At 08:10 09/03/04, Per Westermark wrote:
> > > > >getcwd() or _getcwd().
> > > > >
> > > > >/Per W
> > > > >
> > > > >On Tue, 9 Mar 2004, Josep Subirana wrote:
> > > > >
> > > > > > Hi,
> > > > > >
> > > > > > Do you know how to get the directory where your c++ application
is
> > > running
> > > > > > in?
> > > > > > This should be a simple question for most experienced c++
> > > programmers!
> > > > > >
> > > > > > Thanks,
> > > > > >
> > > > > > Josep
> > > > > >
> > > >
> > > >
> > > >
> > > > -------------------------------------------------------
> > > > This SF.Net email is sponsored by: IBM Linux Tutorials
> > > > Free Linux tutorial presented by Daniel Robbins, President and CEO
of
> > > > GenToo technologies. Learn everything from fundamentals to system
> > > >
administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > > > _______________________________________________
> > > > Dev-cpp-users mailing list
> > > > Dev...@li...
> > > > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > > > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> > > >
> > >
> > >
> > >
> > > -------------------------------------------------------
> > > This SF.Net email is sponsored by: IBM Linux Tutorials
> > > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > > GenToo technologies. Learn everything from fundamentals to system
> > > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > > _______________________________________________
> > > Dev-cpp-users mailing list
> > > Dev...@li...
> > > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> > > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
> > >
> >
> >
> >
> >
> >
> >
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO of
> GenToo technologies. Learn everything from fundamentals to system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO of
> GenToo technologies. Learn everything from fundamentals to system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO of
> GenToo technologies. Learn everything from fundamentals to system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
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>



-------------------------------------------------------
This SF.Net email is sponsored by: IBM Linux Tutorials
Free Linux tutorial presented by Daniel Robbins, President and CEO of
GenToo technologies. Learn everything from fundamentals to system
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_______________________________________________
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