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create the getaddrinfo and getnameinfo library functions and friends

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This commit is contained in:
Erik van der Kouwe
2010-01-21 06:38:17 +00:00
parent 24964aa706
commit a5a2073680
15 changed files with 1262 additions and 14 deletions
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3
test/Makefile
View File

@@ -10,7 +10,7 @@ OBJ= test1 test2 test3 test4 test5 test6 test7 test8 test9 \
test21 test22 test23 test25 test26 test27 test28 test29 \
test30 test31 test32 test34 test35 test36 test37 test38 \
test39 t10a t11a t11b test40 t40a t40b t40c t40d t40e t40f test41 \
test42 test44 test45 test47
test42 test44 test45 test47 test48
BIGOBJ= test20 test24
ROOTOBJ= test11 test33 test43 test46
@@ -95,4 +95,5 @@ test45: test45.c test45.h
test45-gcc: test45.c test45.h
test46: test46.c
test47: test47.c
test48: test48.c

2
test/run
View File

@@ -19,7 +19,7 @@ echo " "
# Run all the tests, keeping track of who failed.
for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 \
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 \
41 42 43 44 45 45-gcc 46 47 sh1.sh sh2.sh
41 42 43 44 45 45-gcc 46 47 48 sh1.sh sh2.sh
do
if [ -x ./test$i ]
then

566
test/test48.c Executable file
View File

@@ -0,0 +1,566 @@
#include <arpa/inet.h>
#include <assert.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define MAX_ERRORS 8
static int errct;
static void quit(void)
{
if (errct > 0)
{
printf("%d errors\n", errct);
exit(1);
}
else
{
printf("ok\n");
exit(0);
}
}
static void err(void)
{
if (++errct >= MAX_ERRORS)
{
printf("aborted, too many errors\n");
quit();
}
}
static void printstr(const char *s)
{
if (s)
printf("\"%s\"", s);
else
printf("NULL");
}
static void test_getaddrinfo_err(
int n,
const char *nodename,
const char *servname,
int passhints,
int flags,
int family,
int socktype,
const char *exp_result,
const char *result)
{
printf("error %d: getaddrinfo(", n);
printstr(nodename);
printf(", ");
printstr(servname);
printf(", ");
if (passhints)
printf("{ 0x%x, %d, %d }", flags, family, socktype);
else
printf("NULL");
printf("); result: ");
printstr(result);
printf("; expected: ");
printstr(exp_result);
printf("\n");
err();
}
/* yes, this is ugly, but not as ugly as repeating it all every time */
#define TEST_GETADDRINFO_ERR_PARAMS \
nodename, servname, passhints, flags, family, socktype
static void test_getaddrinfo_err_nr(
int n,
const char *nodename,
const char *servname,
int passhints,
int flags,
int family,
int socktype,
int exp_result,
int result)
{
char exp_result_s[23], result_s[23];
/* convert result to string */
snprintf(exp_result_s, sizeof(exp_result_s), "%d/0x%x",
exp_result, exp_result);
snprintf(result_s, sizeof(result_s), "%d/0x%x", result, result);
test_getaddrinfo_err(n, TEST_GETADDRINFO_ERR_PARAMS,
exp_result_s, result_s);
}
static void test_getnameinfo_err(
int n,
unsigned long ipaddr,
unsigned short port,
socklen_t nodelen,
socklen_t servicelen,
int flags,
const char *exp_result,
const char *result)
{
printf("error %d: getnameinfo(0x%.8x, %d, %d, %d, 0x%x); result: ",
n, ntohl(ipaddr), ntohs(port), nodelen, servicelen, flags);
printstr(result);
printf("; expected: ");
printstr(exp_result);
printf("\n");
err();
}
/* yes, this is ugly, but not as ugly as repeating it all every time */
#define TEST_GETNAMEINFO_ERR_PARAMS ipaddr, port, nodelen, servicelen, flags
static void test_getnameinfo_err_nr(
int n,
unsigned long ipaddr,
unsigned short port,
socklen_t nodelen,
socklen_t servicelen,
int flags,
int exp_result,
int result)
{
char exp_result_s[23], result_s[23];
/* convert result to string */
snprintf(exp_result_s, sizeof(exp_result_s), "%d/0x%x",
exp_result, exp_result);
snprintf(result_s, sizeof(result_s), "%d/0x%x", result, result);
test_getnameinfo_err(n, TEST_GETNAMEINFO_ERR_PARAMS,
exp_result_s, result_s);
}
static void test_getaddrinfo(
const char *nodename,
const char *servname,
int passhints,
int flags,
int family,
int socktype,
int exp_results,
unsigned long exp_ip,
int exp_canonname,
unsigned short exp_port)
{
struct addrinfo *ai, *ai_cur;
struct addrinfo hints;
struct sockaddr_in *sockaddr_in;
int ai_count_dgram, ai_count_stream, r;
/* some parameters are only meaningful with hints */
assert(passhints || !flags);
assert(passhints || family == AF_UNSPEC);
assert(passhints || !socktype);
/* initialize hints */
memset(&hints, 0, sizeof(hints));
hints.ai_flags = flags;
hints.ai_family = family;
hints.ai_socktype = socktype;
hints.ai_family = family;
/* perform query and test result */
ai = (struct addrinfo *) 0xDEADBEEF;
r = getaddrinfo(nodename, servname, passhints ? &hints : NULL, &ai);
if (r < 0 || r >= 32 || !((1 << r) & exp_results))
test_getaddrinfo_err_nr(1, TEST_GETADDRINFO_ERR_PARAMS, exp_results, r);
if (r)
return;
/* the function succeeded; do the results make sense? */
ai_cur = ai;
ai_count_dgram = 0;
ai_count_stream = 0;
while (ai_cur)
{
/* test result fields */
if (ai_cur->ai_family != AF_INET)
test_getaddrinfo_err_nr(2, TEST_GETADDRINFO_ERR_PARAMS,
AF_INET, ai_cur->ai_family);
if (socktype && ai_cur->ai_socktype != socktype)
test_getaddrinfo_err_nr(3, TEST_GETADDRINFO_ERR_PARAMS,
socktype, ai_cur->ai_socktype);
switch (ai_cur->ai_socktype)
{
case SOCK_DGRAM: ai_count_dgram++; break;
case SOCK_STREAM: ai_count_stream++; break;
}
/* do address and port match? */
if (ai_cur->ai_addrlen != sizeof(struct sockaddr_in))
test_getaddrinfo_err_nr(4, TEST_GETADDRINFO_ERR_PARAMS,
sizeof(struct sockaddr_in),
ai_cur->ai_addrlen);
else
{
sockaddr_in = (struct sockaddr_in *) ai_cur->ai_addr;
if (sockaddr_in->sin_addr.s_addr != exp_ip)
test_getaddrinfo_err_nr(5,
TEST_GETADDRINFO_ERR_PARAMS,
ntohl(exp_ip),
ntohl(sockaddr_in->sin_addr.s_addr));
if (sockaddr_in->sin_port != exp_port)
test_getaddrinfo_err_nr(6,
TEST_GETADDRINFO_ERR_PARAMS,
ntohs(exp_port),
ntohs(sockaddr_in->sin_port));
}
/* is canonical supplied? */
if (exp_canonname &&
(!ai_cur->ai_canonname || !*ai_cur->ai_canonname))
test_getaddrinfo_err(7,
TEST_GETADDRINFO_ERR_PARAMS,
"(anything)", ai_cur->ai_canonname);
if (!exp_canonname && ai_cur->ai_canonname)
test_getaddrinfo_err(8,
TEST_GETADDRINFO_ERR_PARAMS,
NULL, ai_cur->ai_canonname);
/* move to next result */
ai_cur = ai_cur->ai_next;
}
/* check number of results */
if (ai_count_dgram != ((socktype == SOCK_STREAM) ? 0 : 1))
test_getaddrinfo_err_nr(9, TEST_GETADDRINFO_ERR_PARAMS,
(socktype == SOCK_STREAM) ? 0 : 1, ai_count_dgram);
if (ai_count_stream != ((socktype == SOCK_DGRAM) ? 0 : 1))
test_getaddrinfo_err_nr(10, TEST_GETADDRINFO_ERR_PARAMS,
(socktype == SOCK_DGRAM) ? 0 : 1, ai_count_stream);
/* clean up */
freeaddrinfo(ai);
}
static void memsetl(void *s, unsigned long c, size_t n)
{
unsigned char *p = (unsigned char *) s;
size_t i;
for (i = 0; i < n; i++)
p[i] = c >> (8 * (i % sizeof(c)));
}
void test_getnameinfo(
unsigned long ipaddr,
unsigned short port,
const char *exp_node,
socklen_t nodelen,
const char *exp_service,
socklen_t servicelen,
int flags,
int exp_results)
{
struct sockaddr_in sockaddr;
char node[256], service[256];
int r;
/* avoid buffer overflows */
assert(nodelen <= sizeof(node));
assert(servicelen <= sizeof(service));
/* perform query and test result */
sockaddr.sin_family = AF_INET;
sockaddr.sin_addr.s_addr = ipaddr;
sockaddr.sin_port = port;
memsetl(node, 0xDEADBEEF, nodelen);
memsetl(service, 0xDEADBEEF, servicelen);
r = getnameinfo((struct sockaddr *) &sockaddr, sizeof(sockaddr),
node, nodelen, service, servicelen, flags);
if (r < 0 || r >= 32 || !((1 << r) & exp_results))
test_getnameinfo_err_nr(1, TEST_GETNAMEINFO_ERR_PARAMS,
exp_results, r);
if (r)
return;
/* check results */
if (nodelen && strcmp(exp_node, node) != 0)
test_getnameinfo_err(2, TEST_GETNAMEINFO_ERR_PARAMS,
exp_node, node);
if (servicelen && strcmp(exp_service, service) != 0)
test_getnameinfo_err(2, TEST_GETNAMEINFO_ERR_PARAMS,
exp_service, service);
}
static struct
{
const char *nodename;
unsigned long ipaddr;
int numeric;
int canonname;
int need_network;
int exp_result;
} hosts[] = {
{ NULL, 0x7f000001, 1, 1, 0, 0 },
{ "0.0.0.0", 0x00000000, 1, 0, 0, 0, },
{ "0.0.0.255", 0x000000ff, 1, 0, 0, 0, },
{ "0.0.255.0", 0x0000ff00, 1, 0, 0, 0, },
{ "0.255.0.0", 0x00ff0000, 1, 0, 0, 0, },
{ "255.0.0.0", 0xff000000, 1, 0, 0, 0, },
{ "127.0.0.1", 0x7f000001, 1, 0, 0, 0, },
{ "localhost", 0x7f000001, 0, 1, 0, 0, },
{ "minix3.org", 0x82251414, 0, 1, 1, 0, },
{ "", 0x00000000, 1, 0, 0, (1 << EAI_NONAME) },
{ "256.256.256.256", 0x00000000, 1, 0, 0, (1 << EAI_NONAME) },
{ "minix3.xxx", 0x00000000, 0, 0, 1, (1 << EAI_NONAME) }};
static struct
{
const char *servname;
unsigned short port;
int numeric;
int socktype;
int exp_result;
} services[] = {
{ NULL, 0, 1, 0, 0 },
{ "0", 0, 1, 0, 0 },
{ "1", 1, 1, 0, 0 },
{ "32767", 32767, 1, 0, 0 },
{ "32768", 32768, 1, 0, 0 },
{ "65535", 65535, 1, 0, 0 },
{ "echo", 7, 0, 0, 0 },
{ "ftp", 21, 0, SOCK_STREAM, 0 },
{ "tftp", 69, 0, SOCK_DGRAM , 0 },
{ "-1", 0, 1, 0, (1 << EAI_SERVICE) },
{ "", 0, 1, 0, (1 << EAI_SERVICE) },
{ "65537", 0, 1, 0, (1 << EAI_SERVICE) },
{ "XXX", 0, 0, 0, (1 << EAI_SERVICE) }};
static struct
{
int value;
int exp_result;
} families[] = {
{ AF_UNSPEC, 0 },
{ AF_INET, 0 },
{ AF_UNSPEC + AF_INET + 1, (1 << EAI_FAMILY) }};
static struct
{
int value;
int exp_result;
} socktypes[] = {
{ 0, 0 },
{ SOCK_STREAM, 0 },
{ SOCK_DGRAM, 0 },
{ SOCK_STREAM + SOCK_DGRAM + 1, (1 << EAI_SOCKTYPE) }};
#define LENGTH(a) (sizeof((a)) / sizeof((a)[0]))
static void test_getaddrinfo_all(int use_network)
{
int flag_PASSIVE, flag_CANONNAME, flag_NUMERICHOST, flag_NUMERICSERV;
int exp_results, flags, i, j, k, l, needhints, passhints;
unsigned long ipaddr;
/* loop through various parameter values */
for (i = 0; i < LENGTH(hosts); i++)
for (j = 0; j < LENGTH(services); j++)
for (k = 0; k < LENGTH(families); k++)
for (l = 0; l < LENGTH(socktypes); l++)
for (flag_PASSIVE = 0; flag_PASSIVE < 2; flag_PASSIVE++)
for (flag_CANONNAME = 0; flag_CANONNAME < 2; flag_CANONNAME++)
for (flag_NUMERICHOST = 0; flag_NUMERICHOST < 2; flag_NUMERICHOST++)
for (flag_NUMERICSERV = 0; flag_NUMERICSERV < 2; flag_NUMERICSERV++)
{
/* skip tests that need but cannot use network */
if (!use_network && hosts[i].need_network)
continue;
/* determine flags */
flags = (flag_PASSIVE ? AI_PASSIVE : 0) |
(flag_CANONNAME ? AI_CANONNAME : 0) |
(flag_NUMERICHOST ? AI_NUMERICHOST : 0) |
(flag_NUMERICSERV ? AI_NUMERICSERV : 0);
/* flags may influence IP address */
ipaddr = hosts[i].ipaddr;
if (!hosts[i].nodename && flag_PASSIVE)
ipaddr = INADDR_ANY;
/* determine expected result */
exp_results =
hosts[i].exp_result |
services[j].exp_result |
families[k].exp_result |
socktypes[l].exp_result;
if (!hosts[i].nodename && !services[j].servname)
exp_results |= (1 << EAI_NONAME);
if (flag_NUMERICHOST && !hosts[i].numeric)
exp_results |= (1 << EAI_NONAME);
if (flag_NUMERICSERV && !services[j].numeric)
exp_results |= (1 << EAI_SERVICE);
if (services[j].socktype && socktypes[l].value != services[j].socktype)
exp_results |= (1 << EAI_SERVICE);
/* with no reason for failure, we demand success */
if (!exp_results)
exp_results |= (1 << 0);
/* some options require hints */
needhints = (families[k].value != AF_UNSPEC ||
socktypes[l].value != 0 || flags) ? 1 : 0;
for (passhints = needhints; passhints < 2; passhints++)
{
/* test getaddrinfo function */
test_getaddrinfo(
hosts[i].nodename,
services[j].servname,
passhints,
flags,
families[k].value,
socktypes[l].value,
exp_results,
htonl(ipaddr),
flag_CANONNAME && hosts[i].canonname,
htons(services[j].port));
}
}
}
static struct
{
const char *nodename;
const char *nodenum;
unsigned long ipaddr;
int havename;
} ipaddrs[] = {
{ "0.0.0.0", "0.0.0.0", 0x00000000, 0 },
{ "0.0.0.255", "0.0.0.255", 0x000000ff, 0 },
{ "0.0.255.0", "0.0.255.0", 0x0000ff00, 0 },
{ "0.255.0.0", "0.255.0.0", 0x00ff0000, 0 },
{ "255.0.0.0", "255.0.0.0", 0xff000000, 0 },
{ "localhost", "127.0.0.1", 0x7f000001, 1 },
/* no reverse DNS unfortunately */
/* { "minix3.org", "130.37.20.20", 0x82251414, 1 } */};
static struct
{
const char *servname;
const char *servnum;
unsigned short port;
int socktype;
} ports[] = {
{ "0", "0", 0, 0 },
{ "tcpmux", "1", 1, SOCK_STREAM },
{ "32767", "32767", 32767, 0 },
{ "32768", "32768", 32768, 0 },
{ "65535", "65535", 65535, 0 },
{ "echo", "7", 7, 0 },
{ "ftp", "21", 21, SOCK_STREAM },
{ "tftp", "69", 69, SOCK_DGRAM }};
static int buflens[] = { 0, 1, 2, 3, 4, 5, 6, 9, 10, 11, 255 };
static void test_getnameinfo_all(void)
{
int flag_NUMERICHOST, flag_NAMEREQD, flag_NUMERICSERV, flag_DGRAM;
int exp_results, flags, i, j, k, l, socktypemismatch;
const char *nodename, *servname;
/* loop through various parameter values */
for (i = 0; i < LENGTH(ipaddrs); i++)
for (j = 0; j < LENGTH(ports); j++)
for (k = 0; k < LENGTH(buflens); k++)
for (l = 0; l < LENGTH(buflens); l++)
for (flag_NUMERICHOST = 0; flag_NUMERICHOST < 2; flag_NUMERICHOST++)
for (flag_NAMEREQD = 0; flag_NAMEREQD < 2; flag_NAMEREQD++)
for (flag_NUMERICSERV = 0; flag_NUMERICSERV < 2; flag_NUMERICSERV++)
for (flag_DGRAM = 0; flag_DGRAM < 2; flag_DGRAM++)
{
/* determine flags */
flags = (flag_NUMERICHOST ? NI_NUMERICHOST : 0) |
(flag_NAMEREQD ? NI_NAMEREQD : 0) |
(flag_NUMERICSERV ? NI_NUMERICSERV : 0) |
(flag_DGRAM ? NI_DGRAM : 0);
/* determine expected result */
exp_results = 0;
if (!buflens[k] && !buflens[l])
exp_results |= (1 << EAI_NONAME);
nodename = flag_NUMERICHOST ? ipaddrs[i].nodenum : ipaddrs[i].nodename;
if (buflens[k] > 0 && buflens[k] <= strlen(nodename))
exp_results |= (1 << EAI_OVERFLOW);
socktypemismatch =
(flag_DGRAM && ports[j].socktype == SOCK_STREAM) ||
(!flag_DGRAM && ports[j].socktype == SOCK_DGRAM);
servname = (flag_NUMERICSERV || socktypemismatch) ?
ports[j].servnum : ports[j].servname;
if (buflens[l] > 0 && buflens[l] <= strlen(servname))
exp_results |= (1 << EAI_OVERFLOW);
if (flag_NAMEREQD && (!ipaddrs[i].havename | flag_NUMERICHOST) && buflens[k])
exp_results |= (1 << EAI_NONAME);
/* with no reason for failure, we demand success */
if (!exp_results)
exp_results |= (1 << 0);
/* perform the test */
test_getnameinfo(
htonl(ipaddrs[i].ipaddr),
htons(ports[j].port),
nodename,
buflens[k],
servname,
buflens[l],
flags,
exp_results);
}
}
static int can_use_network(void)
{
pid_t pid;
int status;
/* try to ping minix3.org */
status = system("ping www.minix3.org > /dev/nul 2>&1");
if (status == 127)
{
printf("cannot execute ping\n");
err();
}
return status == 0;
}
int main(void)
{
int use_network;
printf("Test 48 ");
fflush(stdout);
use_network = can_use_network();
if (!use_network)
printf("Warning: no network\n");
test_getaddrinfo_all(use_network);
test_getnameinfo_all();
quit();
return 0;
}