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GETNETENT_R(3) | Linux Programmer's Manual | GETNETENT_R(3) |
NAME¶
getnetent_r, getnetbyname_r, getnetbyaddr_r - get network entry (reentrant)SYNOPSIS¶
#include <netdb.h>int getnetent_r(struct netent *result_buf, char *buf, size_t buflen, struct netent **result, int *h_errnop);int getnetbyname_r(const char *name, struct netent *result_buf, char *buf, size_t buflen, struct netent **result, int *h_errnop);int getnetbyaddr_r(uint32_t net, int type, struct netent *result_buf, char *buf, size_t buflen, struct netent **result, int *h_errnop);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
_BSD_SOURCE || _SVID_SOURCE
DESCRIPTION¶
The getnetent_r(), getnetbyname_r(), and getnetbyaddr_r() functions are the reentrant equivalents of, respectively, getnetent(3), getnetbyname(3), and getnetbynumber(3). They differ in the way that the netent structure is returned, and in the function calling signature and return value. This manual page describes just the differences from the nonreentrant functions.RETURN VALUE¶
On success, these functions return 0. On error, they return one of the positive error numbers listed in ERRORS.ERRORS¶
- ENOENT
- (getnetent_r()) No more records in database.
- ERANGE
- buf is too small. Try again with a larger buffer (and increased buflen).
CONFORMING TO¶
These functions are GNU extensions. Functions with similar names exist on some other systems, though typically with different calling signatures.SEE ALSO¶
getnetent(3), networks(5)COLOPHON¶
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.2010-09-10 | GNU |