$ gcc -static test.c
/tmp/ccW9HG18.o: In function `main': test.c.text+0x19): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
$ nm a.out | grep gethostbyname
0804f660 T __gethostbyname_r
0804f660 T __new_gethostbyname_r
080500b0 T __nscd_gethostbyname2_r
08050110 T __nscd_gethostbyname_r
0804f4a0 T gethostbyname
0804f660 W gethostbyname_r
i used
stuct hosent h;
h=gethostname("google.com");
if(h==NULL)
printf("net down");
else
printf("net down");
my question hoe this gethostname will verify whether net ia active or inactive
i eman whether by usin ping or sending socket .
if it is socket which type of socket it is... (5 Replies)
Discussion started by: phani_sree
5 Replies
LEARN ABOUT REDHAT
tiffsetwarninghandler
TIFFWarning(3T)TIFFWarning(3T)NAME
TIFFWarning, TIFFSetWarningHandler - library warning interface
SYNOPSIS
#include <tiffio.h>
void TIFFWarning(const char* module, const char* fmt, ...)
#include <stdargh.h>
typedef void (*TIFFWarningHandler)(const char* module, const char* fmt, va_list ap);
TIFFWarningHandler TIFFSetWarningHandler(TIFFWarningHandler handler);
DESCRIPTION
TIFFWarning invokes the library-wide warning handler function to (normally) write a warning message to the stderr. The fmt parameter is a
printf(3S) format string, and any number arguments can be supplied. The module parameter is interpreted as a string that, if non-zero,
should be printed before the message; it typically is used to identify the software module in which a warning is detected.
Applications that desire to capture control in the event of a warning should use TIFFSetWarningHandler to override the default warning han-
dler. A NULL(0) warning handler function may be installed to suppress error messages.
RETURN VALUES
TIFFSetWarningHandler returns a reference to the previous error handling function.
SEE ALSO libtiff(3T), TIFFError(3T), printf(3S)
October 15, 1995 TIFFWarning(3T)
05-20-2009
.text+0x19): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking