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Fix ignoring return value compiler warnings 

Add code to handle situation where realpath might return a NULL value.
Prior to this change the compiler would complain with the following
message:

error: ignoring return value of ‘char* realpath(const char*, char*)’,
declared with attribute warn_unused_result
This commit is contained in:
Curtis Gedak 2011-07-16 10:09:04 -06:00
parent 6c9d0cf6f1
commit f768cbd1b4
1 changed files with 16 additions and 12 deletions
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8
src/DMRaid.cc
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@ -128,7 +128,8 @@ bool DMRaid::is_dmraid_device( const Glib::ustring & dev_path )
//Path is a symbolic link so find real path
char c_str[4096+1] ;
//FIXME: it seems realpath is very unsafe to use (manpage)...
realpath( dev_path .c_str(), c_str ) ;
if ( realpath( dev_path .c_str(), c_str ) != NULL )
{
Glib::ustring tmp_path = c_str ;
if ( tmp_path .length() > 0 )
for ( unsigned int k=0; k < dmraid_devices .size(); k++ )
@ -136,6 +137,7 @@ bool DMRaid::is_dmraid_device( const Glib::ustring & dev_path )
device_found = true ;
}
}
}
return device_found ;
}
@ -196,7 +198,8 @@ Glib::ustring DMRaid::get_dmraid_name( const Glib::ustring & dev_path )
//Path is a symbolic link so find real path
char c_str[4096+1] ;
//FIXME: it seems realpath is very unsafe to use (manpage)...
realpath( dev_path .c_str(), c_str ) ;
if( realpath( dev_path .c_str(), c_str ) != NULL )
{
Glib::ustring tmp_path = c_str ;
if ( tmp_path .length() > 0 )
for ( unsigned int k=0; k < dmraid_devices .size(); k++ )
@ -204,6 +207,7 @@ Glib::ustring DMRaid::get_dmraid_name( const Glib::ustring & dev_path )
dmraid_name = dmraid_devices[k] ;
}
}
}
return dmraid_name ;
}