diff options
Diffstat (limited to 'inet')
| -rw-r--r-- | inet/Makefile | 2 | ||||
| -rw-r--r-- | inet/Versions | 6 | ||||
| -rw-r--r-- | inet/freehostent.c | 27 | ||||
| -rw-r--r-- | inet/getipnodebyad.c | 59 |
4 files changed, 93 insertions, 1 deletions
diff --git a/inet/Makefile b/inet/Makefile index 12da863f80..14bc027a0b 100644 --- a/inet/Makefile +++ b/inet/Makefile @@ -45,7 +45,7 @@ routines := htonl htons \ rcmd rexec ruserpass \ getnetgrent_r getnetgrent \ getaliasent_r getaliasent getaliasname getaliasname_r \ - in6_addr getnameinfo if_index + in6_addr getnameinfo if_index getipnodebyad freehostent tests := htontest test_ifindex tst-ntoa tst-ether_aton diff --git a/inet/Versions b/inet/Versions index 711d490aa5..df97f6188a 100644 --- a/inet/Versions +++ b/inet/Versions @@ -62,4 +62,10 @@ libc { getprotoent_r; getrpcbyname_r; getrpcbynumber_r; getrpcent_r; getservbyname_r; } + GLIBC_2.2 { + # f* + freehostent; + # g* + getipnodebyaddr; + } } diff --git a/inet/freehostent.c b/inet/freehostent.c new file mode 100644 index 0000000000..c2c1b25d6d --- /dev/null +++ b/inet/freehostent.c @@ -0,0 +1,27 @@ +/* Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <netdb.h> +#include <stdlib.h> + + +void +freehostent (struct hostent *ptr) +{ + free (ptr); +} diff --git a/inet/getipnodebyad.c b/inet/getipnodebyad.c new file mode 100644 index 0000000000..d9d5ba8887 --- /dev/null +++ b/inet/getipnodebyad.c @@ -0,0 +1,59 @@ +/* Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <assert.h> +#include <errno.h> +#include <netdb.h> +#include <stdlib.h> + +#include "nsswitch.h" + +/* We avoid using a too large buffer in case the user is accumulating the + results and there is lots of unused space in the allocated buffer. */ +#define BUFLEN 512 + + +struct hostent * +getipnodebyaddr (const char *addr, size_t len, int type, int *error_num) +{ + size_t buffer_size; + char *buffer; + struct hostent *result; + + buffer_size = BUFLEN; + buffer = malloc (buffer_size); + + while (buffer != NULL + && __gethostbyaddr_r (addr, len, type, (struct hostent *) buffer, + (char *) ((struct hostent *) buffer + 1), + buffer_size - sizeof (struct hostent), + &result, error_num) == ERANGE + && *error_num == NETDB_INTERNAL) + { + buffer_size += BUFLEN; + buffer = realloc (buffer, buffer_size); + if (buffer == NULL) + { + *error_num = TRY_AGAIN; + assert (result == NULL); + return NULL; + } + } + + return buffer == NULL ? NULL : result; +} |