Re: [gtk-list] Re: More IRIX problems

["David J. Topper" <topper virginia edu>]

Erik Mouw wrote:
> 
> If it really annoys you, you can switch the warning off. Go to the
> directory where gcc is installed. If you installed gcc 2.8.1 from Ariel
> Faigon's tardist, it is in /usr/freeware/lib/gcc-lib/mips-sgi-irix6.3/2.8.1,
> otherwise it is in the prefix you gave it when you built it. Edit the
> "specs" file. Go to the "*link:" line. If there is already a "-woff 131"
> argument, change it to "-woff 131,85". If there isn't a "-woff" argument,
> insert one just before "-_SYSTYPE_SVR4".

That would mean I get NO warnings.  I'm not that good a programmer ...
:-)

> Well, my O2 has it defined in /usr/include/pwd.h as:
> 
>   #if _POSIX1C
>   extern int getpwuid_r(uid_t, struct passwd *, char *, size_t, struct passwd **);
>   extern int getpwnam_r(const char *, struct passwd *, char *, size_t, struct passwd **);
>   #endif
> 
> It is also in the C library: (nm /usr/lib32/libc.so | grep getpwuid)
> 
>   Symbols from /usr/lib32/libc.so:
> 
>   [Index]   Value      Size    Type  Bind  Other     Shndx   Name
> 
>   [333]   | 262456880|     436|FUNC |WEAK |DEFAULT  |MIPS_TEXT|_getpwuid
>   [334]   | 262456880|     436|FUNC |WEAK |DEFAULT  |MIPS_TEXT|getpwuid
>   [398]   | 262523440|      12|FUNC |GLOB |DEFAULT  |MIPS_TEXT|__sgi_getpwuid_r
>   [399]   | 262523440|      12|FUNC |WEAK |DEFAULT  |MIPS_TEXT|getpwuid_r
>   [2264]  | 262513856|     568|FUNC |GLOB |HIDDEN   |MIPS_TEXT|__files_getpwuid
>   [2404]  | 262456880|     436|FUNC |GLOB |DEFAULT  |MIPS_TEXT|__sgi_getpwuid
> 
> But IMHO the size is actually a bit small, unless it calls getpwuid().
> What's the getpwuid_r() function supposed to do? I don't have a manpage
> for it.

Here's a snippet.  I don't know why GTK needs it.

DESCRIPTION
     getpwent, getpwuid and getpwnam each returns a pointer to an object
with
     the following structure containing the broken-out fields of a line
in the
     /etc/passwd file or the NIS passwd maps.  Each line in the file
contains
     a ``passwd'' structure, declared in the <pwd.h> header file:

          struct passwd {
               char *pw_name;
               char *pw_passwd;
               uid_t     pw_uid;
               gid_t     pw_gid;
               char *pw_age;
               char *pw_comment;
               char *pw_gecos;
               char *pw_dir;
               char *pw_shell;
          };

     This structure is declared in <pwd.h> so it is not necessary to
redeclare
     it.

     The fields have meanings described in passwd(4).

     getpwent when first called returns a pointer to the first passwd
     structure in the file; thereafter, it returns a pointer to the next
     passwd structure in the file; so successive calls can be used to
search
     the entire file.  getpwuid searches from the beginning of the file
until

     a numerical user id matching uid is found and returns a pointer to
the
     particular structure in which it was found.  getpwnam searches from
the
     beginning of the file until a login name matching name is found,
and
     returns a pointer to the particular structure in which it was
found.  If
     an end-of-file or an error is encountered on reading, these
functions
     return a NULL pointer.

     A call to setpwent has the effect of rewinding the password file to
allow
     repeated searches.  endpwent may be called to close the password
file
     when processing is complete.

     fgetpwent returns a pointer to the next passwd structure in the
stream f,
     which matches the format of /etc/passwd.  It does no interpretation
of
     any kind, NIS entries are passed back as they exist in f.   


DT
--
Technical Director, Virginia Center for Computer Music
Programmer / Analyst, Dean's Office (School of A&S)
http://www.people.virginia.edu/~djt7p
(804) 924-6887