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socket.c: In function ‘run_tests’: socket.c:59:25: warning: ignoring return value of ‘strerror_r’ \ declared with attribute ‘warn_unused_result’ [-Wunused-result] 59 | strerror_r(-s->expect, err_string1, ERR_STRING_SZ); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ socket.c:60:25: warning: ignoring return value of ‘strerror_r’ \ declared with attribute ‘warn_unused_result’ [-Wunused-result] 60 | strerror_r(errno, err_string2, ERR_STRING_SZ); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ socket.c:73:33: warning: ignoring return value of ‘strerror_r’ \ declared with attribute ‘warn_unused_result’ [-Wunused-result] 73 | strerror_r(errno, err_string1, ERR_STRING_SZ); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ changelog: v2 - const char* messages and fixed patch warnings of max 75 chars per line Signed-off-by: Alex Tran <alex.t.tran@gmail.com> Link: https://patch.msgid.link/20250819025227.239885-1-alex.t.tran@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
96 lines
1.9 KiB
C
96 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <stdio.h>
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#include <errno.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include "../kselftest.h"
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struct socket_testcase {
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int domain;
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int type;
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int protocol;
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/* 0 = valid file descriptor
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* -foo = error foo
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*/
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int expect;
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/* If non-zero, accept EAFNOSUPPORT to handle the case
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* of the protocol not being configured into the kernel.
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*/
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int nosupport_ok;
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};
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static struct socket_testcase tests[] = {
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{ AF_MAX, 0, 0, -EAFNOSUPPORT, 0 },
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{ AF_INET, SOCK_STREAM, IPPROTO_TCP, 0, 1 },
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{ AF_INET, SOCK_DGRAM, IPPROTO_TCP, -EPROTONOSUPPORT, 1 },
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{ AF_INET, SOCK_DGRAM, IPPROTO_UDP, 0, 1 },
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{ AF_INET, SOCK_STREAM, IPPROTO_UDP, -EPROTONOSUPPORT, 1 },
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};
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#define ERR_STRING_SZ 64
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static int run_tests(void)
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{
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char err_string1[ERR_STRING_SZ];
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char err_string2[ERR_STRING_SZ];
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const char *msg1, *msg2;
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int i, err;
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err = 0;
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for (i = 0; i < ARRAY_SIZE(tests); i++) {
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struct socket_testcase *s = &tests[i];
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int fd;
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fd = socket(s->domain, s->type, s->protocol);
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if (fd < 0) {
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if (s->nosupport_ok &&
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errno == EAFNOSUPPORT)
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continue;
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if (s->expect < 0 &&
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errno == -s->expect)
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continue;
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msg1 = strerror_r(-s->expect, err_string1, ERR_STRING_SZ);
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msg2 = strerror_r(errno, err_string2, ERR_STRING_SZ);
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fprintf(stderr, "socket(%d, %d, %d) expected "
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"err (%s) got (%s)\n",
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s->domain, s->type, s->protocol,
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msg1, msg2);
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err = -1;
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break;
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} else {
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close(fd);
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if (s->expect < 0) {
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msg1 = strerror_r(errno, err_string1, ERR_STRING_SZ);
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fprintf(stderr, "socket(%d, %d, %d) expected "
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"success got err (%s)\n",
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s->domain, s->type, s->protocol,
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msg1);
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err = -1;
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break;
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}
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}
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}
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return err;
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}
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int main(void)
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{
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int err = run_tests();
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return err;
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}
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