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setservent(3) Library Functions Manual setservent(3) NAME setservent, setservent_r - Open or rewind the services file LIBRARY Standard C Library (libc.so, libc.a) SYNOPSIS #include <netdb.h> void setservent( int stay_open); [Digital] The following function is supported in order to maintain backward compatibility with previous versions of the operating system. int setservent_r( int stay_open, struct servent_data *serv_data); [Digital] The following function is supported in order to maintain backward compatibility with previous versions of the operating system. int setservent( int stay_open); STANDARDS Interfaces documented on this reference page conform to industry stan- dards as follows: setservent(): XPG4-UNIX Refer to the standards(5) reference page for more information about in- dustry standards and associated tags. PARAMETERS Indicates when to close the services file. Specifying a value of 0 (zero) causes the file to be closed after each call to the getservent() function. Specifying a nonzero value allows the file to remain open after each call. [Digital] Points to a structure where setservent_r() stores information about the services file. DESCRIPTION The setservent() (set service entry) function opens either the local /etc/services file or the NIS distributed services file, and sets the file marker at the beginning of the file. To determine which file or files to search, and in which order, the system uses the switches in the /etc/svc.conf file. NOTES [Digital] The setservent_r() function is the reentrant version of the setservent() function. It is supported in order to maintain backward compatibility with previous versions of the operating system. Upon successful completion, the setservent_r() function returns a value of 0 (zero). Otherwise, it returns a value of -1. [Digital] Before calling the setservent_r() function for the first time, you must zero-fill the servent_data structure. The netdb.h header file defines the servent_data structure. RETURN VALUES Current industry standards for setservent() do not define return val- ues. [Digital] Upon successful completion, the setservent() function in- cluded for backward compatibility returns a 1 for success. Otherwise, it returns a value of 0 (zero). ERRORS Current industry standards for setservent() do not define error values. [Digital] If any of the following conditions occurs, the setser- vent_r() function sets errno to the corresponding value: If serv_data is invalid. In addition, the setservent() and setservent_r() functions can fail to open the file. In this case, errno will be set to the failure. FILES Contains service names. The database service selection configuration file. RELATED INFORMATION Functions: endservent(3), getservbyname(3), getservbyport(3), getser- vent(3). Files: services(4), svc.conf(4). Networks: nis_intro(7). Standards: standards(5). delim off setservent(3)