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riscv-openocd-wch/jimtcl/jim-aio.c

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/* Jim - A small embeddable Tcl interpreter
*
* Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>
* Copyright 2005 Clemens Hintze <c.hintze@gmx.net>
* Copyright 2005 patthoyts - Pat Thoyts <patthoyts@users.sf.net>
* Copyright 2008 oharboe - Øyvind Harboe - oyvind.harboe@zylin.com
* Copyright 2008 Andrew Lunn <andrew@lunn.ch>
* Copyright 2008 Duane Ellis <openocd@duaneellis.com>
* Copyright 2008 Uwe Klein <uklein@klein-messgeraete.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE JIM TCL PROJECT ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* JIM TCL PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation
* are those of the authors and should not be interpreted as representing
* official policies, either expressed or implied, of the Jim Tcl Project.
**/
#include "jimautoconf.h"
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <assert.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#include <sys/stat.h>
#endif
#ifdef HAVE_UTIL_H
#include <util.h>
#endif
#ifdef HAVE_PTY_H
#include <pty.h>
#endif
#include "jim.h"
#include "jimiocompat.h"
#if defined(HAVE_SYS_SOCKET_H) && defined(HAVE_SELECT) && defined(HAVE_NETINET_IN_H) && defined(HAVE_NETDB_H) && defined(HAVE_ARPA_INET_H)
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <netdb.h>
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
#endif
#define HAVE_SOCKETS
#elif defined (__MINGW32__)
/* currently mingw32 doesn't support sockets, but has pipe, fdopen */
#else
#define JIM_ANSIC
#endif
#if defined(JIM_SSL)
#include <openssl/ssl.h>
#include <openssl/err.h>
#endif
#ifdef HAVE_TERMIOS_H
#include <jim-tty.h>
#endif
#include "jim-eventloop.h"
#include "jim-subcmd.h"
#define AIO_CMD_LEN 32 /* e.g. aio.handleXXXXXX */
#define AIO_BUF_LEN 256 /* Can keep this small and rely on stdio buffering */
#ifndef HAVE_FTELLO
#define ftello ftell
#endif
#ifndef HAVE_FSEEKO
#define fseeko fseek
#endif
#define AIO_KEEPOPEN 1
#define AIO_NODELETE 2
#define AIO_EOF 4
#if defined(JIM_IPV6)
#define IPV6 1
#else
#define IPV6 0
#ifndef PF_INET6
#define PF_INET6 0
#endif
#endif
#if defined(HAVE_SYS_UN_H) && defined(PF_UNIX)
#define UNIX_SOCKETS 1
#else
#define UNIX_SOCKETS 0
#endif
#ifdef JIM_ANSIC
/* no fdopen() with ANSIC, so can't support these */
#undef HAVE_PIPE
#undef HAVE_SOCKETPAIR
#endif
#if defined(HAVE_SOCKETS) && !defined(JIM_BOOTSTRAP)
/* Avoid type punned pointers */
union sockaddr_any {
struct sockaddr sa;
struct sockaddr_in sin;
#if IPV6
struct sockaddr_in6 sin6;
#endif
#if UNIX_SOCKETS
struct sockaddr_un sun;
#endif
};
#ifndef HAVE_INET_NTOP
const char *inet_ntop(int af, const void *src, char *dst, int size)
{
if (af != PF_INET) {
return NULL;
}
snprintf(dst, size, "%s", inet_ntoa(((struct sockaddr_in *)src)->sin_addr));
return dst;
}
#endif
#endif /* JIM_BOOTSTRAP */
struct AioFile;
typedef struct {
int (*writer)(struct AioFile *af, const char *buf, int len);
int (*reader)(struct AioFile *af, char *buf, int len);
const char *(*getline)(struct AioFile *af, char *buf, int len);
int (*error)(const struct AioFile *af);
const char *(*strerror)(struct AioFile *af);
int (*verify)(struct AioFile *af);
int (*eof)(struct AioFile *af);
int (*pending)(struct AioFile *af);
} JimAioFopsType;
typedef struct AioFile
{
FILE *fp;
Jim_Obj *filename;
int type;
int flags; /* AIO_KEEPOPEN? keep FILE* */
int fd;
int addr_family;
void *ssl;
const JimAioFopsType *fops;
} AioFile;
static int stdio_writer(struct AioFile *af, const char *buf, int len)
{
return fwrite(buf, 1, len, af->fp);
}
static int stdio_reader(struct AioFile *af, char *buf, int len)
{
return fread(buf, 1, len, af->fp);
}
static const char *stdio_getline(struct AioFile *af, char *buf, int len)
{
return fgets(buf, len, af->fp);
}
static int stdio_error(const AioFile *af)
{
if (!ferror(af->fp)) {
return JIM_OK;
}
clearerr(af->fp);
/* EAGAIN and similar are not error conditions. Just treat them like eof */
if (feof(af->fp) || errno == EAGAIN || errno == EINTR) {
return JIM_OK;
}
#ifdef ECONNRESET
if (errno == ECONNRESET) {
return JIM_OK;
}
#endif
#ifdef ECONNABORTED
if (errno == ECONNABORTED) {
return JIM_OK;
}
#endif
return JIM_ERR;
}
static const char *stdio_strerror(struct AioFile *af)
{
return strerror(errno);
}
static int stdio_eof(struct AioFile *af)
{
return feof(af->fp);
}
static const JimAioFopsType stdio_fops = {
stdio_writer,
stdio_reader,
stdio_getline,
stdio_error,
stdio_strerror,
NULL, /* verify */
stdio_eof,
NULL, /* pending */
};
#if defined(JIM_SSL) && !defined(JIM_BOOTSTRAP)
static SSL_CTX *JimAioSslCtx(Jim_Interp *interp);
static int ssl_writer(struct AioFile *af, const char *buf, int len)
{
return SSL_write(af->ssl, buf, len);
}
static int ssl_pending(struct AioFile *af)
{
return SSL_pending(af->ssl);
}
static int ssl_reader(struct AioFile *af, char *buf, int len)
{
int ret = SSL_read(af->ssl, buf, len);
switch (SSL_get_error(af->ssl, ret)) {
case SSL_ERROR_NONE:
return ret;
case SSL_ERROR_SYSCALL:
case SSL_ERROR_ZERO_RETURN:
if (errno != EAGAIN) {
af->flags |= AIO_EOF;
}
return 0;
case SSL_ERROR_SSL:
default:
if (errno == EAGAIN) {
return 0;
}
af->flags |= AIO_EOF;
return -1;
}
}
static int ssl_eof(struct AioFile *af)
{
return (af->flags & AIO_EOF);
}
static const char *ssl_getline(struct AioFile *af, char *buf, int len)
{
size_t i;
for (i = 0; i < len - 1 && !ssl_eof(af); i++) {
int ret = ssl_reader(af, &buf[i], 1);
if (ret != 1) {
break;
}
if (buf[i] == '\n') {
i++;
break;
}
}
buf[i] = '\0';
if (i == 0 && ssl_eof(af)) {
return NULL;
}
return buf;
}
static int ssl_error(const struct AioFile *af)
{
int ret = SSL_get_error(af->ssl, 0);
/* XXX should we be following the same logic as ssl_reader() here? */
if (ret == SSL_ERROR_ZERO_RETURN || ret == SSL_ERROR_NONE) {
return JIM_OK;
}
if (ret == SSL_ERROR_SYSCALL) {
return stdio_error(af);
}
return JIM_ERR;
}
static const char *ssl_strerror(struct AioFile *af)
{
int err = ERR_get_error();
if (err) {
return ERR_error_string(err, NULL);
}
else {
return stdio_strerror(af);
}
}
static int ssl_verify(struct AioFile *af)
{
X509 *cert;
cert = SSL_get_peer_certificate(af->ssl);
if (!cert) {
return JIM_ERR;
}
X509_free(cert);
if (SSL_get_verify_result(af->ssl) == X509_V_OK) {
return JIM_OK;
}
return JIM_ERR;
}
static const JimAioFopsType ssl_fops = {
ssl_writer,
ssl_reader,
ssl_getline,
ssl_error,
ssl_strerror,
ssl_verify,
ssl_eof,
ssl_pending,
};
#endif /* JIM_BOOTSTRAP */
static int JimAioSubCmdProc(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
static AioFile *JimMakeChannel(Jim_Interp *interp, FILE *fh, int fd, Jim_Obj *filename,
const char *hdlfmt, int family, const char *mode, int flags);
#if defined(HAVE_SOCKETS) && !defined(JIM_BOOTSTRAP)
#ifndef HAVE_GETADDRINFO
/*
* Poor man's getaddrinfo().
* hints->ai_family must be set and must be PF_INET or PF_INET6
* Only returns the first matching result.
* servname must be numeric.
*/
struct addrinfo {
int ai_family;
socklen_t ai_addrlen;
struct sockaddr *ai_addr; /* simply points to ai_storage */
union sockaddr_any ai_storage;
};
static int getaddrinfo(const char *hostname, const char *servname,
const struct addrinfo *hints, struct addrinfo **res)
{
struct hostent *he;
char *end;
unsigned long port = strtoul(servname, &end, 10);
if (port == 0 || port > 65536 || *end) {
errno = EINVAL;
return -1;
}
if ((he = gethostbyname(hostname)) != NULL) {
int i;
for (i = 0; he->h_addr_list[i]; i++) {
if (he->h_addrtype == hints->ai_family) {
struct addrinfo *ai = malloc(sizeof(*ai));
memset(ai, 0, sizeof(*ai));
ai->ai_family = he->h_addrtype;
ai->ai_addr = &ai->ai_storage.sa;
if (ai->ai_family == PF_INET) {
ai->ai_addrlen = sizeof(ai->ai_storage.sin);
ai->ai_storage.sin.sin_family = he->h_addrtype;
assert(sizeof(ai->ai_storage.sin.sin_addr) == he->h_length);
memcpy(&ai->ai_storage.sin.sin_addr, he->h_addr_list[i], he->h_length);
ai->ai_storage.sin.sin_port = htons(port);
}
#if IPV6
else {
ai->ai_addrlen = sizeof(ai->ai_storage.sin6);
ai->ai_storage.sin6.sin6_family = he->h_addrtype;
assert(sizeof(ai->ai_storage.sin6.sin6_addr) == he->h_length);
memcpy(&ai->ai_storage.sin6.sin6_addr, he->h_addr_list[i], he->h_length);
ai->ai_storage.sin6.sin6_port = htons(port);
}
#endif
*res = ai;
return 0;
}
}
}
return ENOENT;
}
static void freeaddrinfo(struct addrinfo *ai)
{
free(ai);
}
#endif
static int JimParseIPv6Address(Jim_Interp *interp, int socktype, const char *hostport, union sockaddr_any *sa, socklen_t *salen)
{
#if IPV6
/*
* An IPv6 addr/port looks like:
* [::1]
* [::1]:2000
* [fe80::223:6cff:fe95:bdc0%en1]:2000
* [::]:2000
* 2000
*
* Note that the "any" address is ::, which is the same as when no address is specified.
*/
char *sthost = NULL;
const char *stport;
int ret = JIM_OK;
struct addrinfo req;
struct addrinfo *ai;
stport = strrchr(hostport, ':');
if (!stport) {
/* No : so, the whole thing is the port */
stport = hostport;
hostport = "::";
sthost = Jim_StrDup(hostport);
}
else {
stport++;
}
if (*hostport == '[') {
/* This is a numeric ipv6 address */
char *pt = strchr(++hostport, ']');
if (pt) {
sthost = Jim_StrDupLen(hostport, pt - hostport);
}
}
if (!sthost) {
sthost = Jim_StrDupLen(hostport, stport - hostport - 1);
}
memset(&req, '\0', sizeof(req));
req.ai_family = PF_INET6;
req.ai_socktype = socktype;
if (getaddrinfo(sthost, stport, &req, &ai)) {
Jim_SetResultFormatted(interp, "Not a valid address: %s:%s", sthost, stport);
ret = JIM_ERR;
}
else {
memcpy(&sa->sin6, ai->ai_addr, ai->ai_addrlen);
*salen = ai->ai_addrlen;
freeaddrinfo(ai);
}
Jim_Free(sthost);
return ret;
#else
Jim_SetResultString(interp, "ipv6 not supported", -1);
return JIM_ERR;
#endif
}
static int JimParseIpAddress(Jim_Interp *interp, int socktype, const char *hostport, union sockaddr_any *sa, socklen_t *salen)
{
/* An IPv4 addr/port looks like:
* 192.168.1.5
* 192.168.1.5:2000
* 2000
*
* If the address is missing, INADDR_ANY is used.
* If the port is missing, 0 is used (only useful for server sockets).
*/
char *sthost = NULL;
const char *stport;
int ret = JIM_OK;
struct addrinfo req;
struct addrinfo *ai;
stport = strrchr(hostport, ':');
if (!stport) {
/* No : so, the whole thing is the port */
stport = hostport;
sthost = Jim_StrDup("0.0.0.0");
}
else {
sthost = Jim_StrDupLen(hostport, stport - hostport);
stport++;
}
memset(&req, '\0', sizeof(req));
req.ai_family = PF_INET;
req.ai_socktype = socktype;
if (getaddrinfo(sthost, stport, &req, &ai)) {
ret = JIM_ERR;
}
else {
memcpy(&sa->sin, ai->ai_addr, ai->ai_addrlen);
*salen = ai->ai_addrlen;
freeaddrinfo(ai);
}
Jim_Free(sthost);
if (ret != JIM_OK) {
Jim_SetResultFormatted(interp, "Not a valid address: %s", hostport);
}
return ret;
}
#if UNIX_SOCKETS
static int JimParseDomainAddress(Jim_Interp *interp, const char *path, union sockaddr_any *sa, socklen_t *salen)
{
sa->sun.sun_family = PF_UNIX;
snprintf(sa->sun.sun_path, sizeof(sa->sun.sun_path), "%s", path);
*salen = strlen(sa->sun.sun_path) + 1 + sizeof(sa->sun.sun_family);
return JIM_OK;
}
#endif
static int JimParseSocketAddress(Jim_Interp *interp, int family, int socktype, const char *addr, union sockaddr_any *sa, socklen_t *salen)
{
switch (family) {
#if UNIX_SOCKETS
case PF_UNIX:
return JimParseDomainAddress(interp, addr, sa, salen);
#endif
case PF_INET6:
return JimParseIPv6Address(interp, socktype, addr, sa, salen);
case PF_INET:
return JimParseIpAddress(interp, socktype, addr, sa, salen);
}
return JIM_ERR;
}
/**
* Format that address in 'sa' as a string and return it as a zero-refcount object.
*
*/
static Jim_Obj *JimFormatSocketAddress(Jim_Interp *interp, const union sockaddr_any *sa, socklen_t salen)
{
/* INET6_ADDRSTRLEN is 46. Add some for [] and port */
char addrbuf[60];
const char *addr = addrbuf;
int addrlen = -1;
switch (sa->sa.sa_family) {
#if UNIX_SOCKETS
case PF_UNIX:
addr = sa->sun.sun_path;
addrlen = salen - 1 - sizeof(sa->sun.sun_family);
if (addrlen < 0) {
addrlen = 0;
}
break;
#endif
#if IPV6
case PF_INET6:
addrbuf[0] = '[';
/* Allow 9 for []:65535\0 */
inet_ntop(sa->sa.sa_family, &sa->sin6.sin6_addr, addrbuf + 1, sizeof(addrbuf) - 9);
snprintf(addrbuf + strlen(addrbuf), 8, "]:%d", ntohs(sa->sin6.sin6_port));
break;
#endif
case PF_INET:
/* Allow 7 for :65535\0 */
inet_ntop(sa->sa.sa_family, &sa->sin.sin_addr, addrbuf, sizeof(addrbuf) - 7);
snprintf(addrbuf + strlen(addrbuf), 7, ":%d", ntohs(sa->sin.sin_port));
break;
default:
/* Otherwise just an empty address */
addr = "";
break;
}
return Jim_NewStringObj(interp, addr, addrlen);
}
static int JimSetVariableSocketAddress(Jim_Interp *interp, Jim_Obj *varObjPtr, const union sockaddr_any *sa, socklen_t salen)
{
int ret;
Jim_Obj *objPtr = JimFormatSocketAddress(interp, sa, salen);
Jim_IncrRefCount(objPtr);
ret = Jim_SetVariable(interp, varObjPtr, objPtr);
Jim_DecrRefCount(interp, objPtr);
return ret;
}
static Jim_Obj *aio_sockname(Jim_Interp *interp, AioFile *af)
{
union sockaddr_any sa;
socklen_t salen = sizeof(sa);
if (getsockname(af->fd, &sa.sa, &salen) < 0) {
return NULL;
}
return JimFormatSocketAddress(interp, &sa, salen);
}
#endif /* JIM_BOOTSTRAP */
static const char *JimAioErrorString(AioFile *af)
{
if (af && af->fops)
return af->fops->strerror(af);
return strerror(errno);
}
static void JimAioSetError(Jim_Interp *interp, Jim_Obj *name)
{
AioFile *af = Jim_CmdPrivData(interp);
if (name) {
Jim_SetResultFormatted(interp, "%#s: %s", name, JimAioErrorString(af));
}
else {
Jim_SetResultString(interp, JimAioErrorString(af), -1);
}
}
static int JimCheckStreamError(Jim_Interp *interp, AioFile *af)
{
int ret = af->fops->error(af);
if (ret) {
JimAioSetError(interp, af->filename);
}
return ret;
}
static void JimAioDelProc(Jim_Interp *interp, void *privData)
{
AioFile *af = privData;
JIM_NOTUSED(interp);
#if UNIX_SOCKETS
if (af->addr_family == PF_UNIX && (af->flags & AIO_NODELETE) == 0) {
/* If this is bound, delete the socket file now */
Jim_Obj *filenameObj = aio_sockname(interp, af);
if (filenameObj) {
if (Jim_Length(filenameObj)) {
remove(Jim_String(filenameObj));
}
Jim_FreeNewObj(interp, filenameObj);
}
}
#endif
Jim_DecrRefCount(interp, af->filename);
#ifdef jim_ext_eventloop
/* remove all existing EventHandlers */
Jim_DeleteFileHandler(interp, af->fd, JIM_EVENT_READABLE | JIM_EVENT_WRITABLE | JIM_EVENT_EXCEPTION);
#endif
#if defined(JIM_SSL)
if (af->ssl != NULL) {
SSL_free(af->ssl);
}
#endif
if (!(af->flags & AIO_KEEPOPEN)) {
fclose(af->fp);
}
Jim_Free(af);
}
static int aio_cmd_read(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
char buf[AIO_BUF_LEN];
Jim_Obj *objPtr;
int nonewline = 0;
int pending = 0;
jim_wide neededLen = -1; /* -1 is "read as much as possible" */
static const char * const options[] = { "-pending", "-nonewline", NULL };
enum { OPT_PENDING, OPT_NONEWLINE };
int option;
if (argc) {
if (*Jim_String(argv[0]) == '-') {
if (Jim_GetEnum(interp, argv[0], options, &option, NULL, JIM_ERRMSG) != JIM_OK) {
return JIM_ERR;
}
switch (option) {
case OPT_PENDING:
if (!af->fops->pending) {
Jim_SetResultString(interp, "-pending not supported on this connection type", -1);
return JIM_ERR;
}
pending++;
break;
case OPT_NONEWLINE:
nonewline++;
break;
}
}
else {
if (Jim_GetWide(interp, argv[0], &neededLen) != JIM_OK)
return JIM_ERR;
if (neededLen < 0) {
Jim_SetResultString(interp, "invalid parameter: negative len", -1);
return JIM_ERR;
}
}
argc--;
argv++;
}
if (argc) {
return -1;
}
objPtr = Jim_NewStringObj(interp, NULL, 0);
while (neededLen != 0) {
int retval;
int readlen;
if (neededLen == -1) {
readlen = AIO_BUF_LEN;
}
else {
readlen = (neededLen > AIO_BUF_LEN ? AIO_BUF_LEN : neededLen);
}
retval = af->fops->reader(af, buf, pending ? 1 : readlen);
if (retval > 0) {
Jim_AppendString(interp, objPtr, buf, retval);
if (neededLen != -1) {
neededLen -= retval;
}
else if (pending) {
/* If pending was specified, after we do the initial read,
* we do a second read to fetch any buffered data
*/
neededLen = af->fops->pending(af);
}
}
if (retval <= 0) {
break;
}
}
/* Check for error conditions */
if (JimCheckStreamError(interp, af)) {
Jim_FreeNewObj(interp, objPtr);
return JIM_ERR;
}
if (nonewline) {
int len;
const char *s = Jim_GetString(objPtr, &len);
if (len > 0 && s[len - 1] == '\n') {
objPtr->length--;
objPtr->bytes[objPtr->length] = '\0';
}
}
Jim_SetResult(interp, objPtr);
return JIM_OK;
}
AioFile *Jim_AioFile(Jim_Interp *interp, Jim_Obj *command)
{
Jim_Cmd *cmdPtr = Jim_GetCommand(interp, command, JIM_ERRMSG);
/* XXX: There ought to be a supported API for this */
if (cmdPtr && !cmdPtr->isproc && cmdPtr->u.native.cmdProc == JimAioSubCmdProc) {
return (AioFile *) cmdPtr->u.native.privData;
}
Jim_SetResultFormatted(interp, "Not a filehandle: \"%#s\"", command);
return NULL;
}
FILE *Jim_AioFilehandle(Jim_Interp *interp, Jim_Obj *command)
{
AioFile *af;
af = Jim_AioFile(interp, command);
if (af == NULL) {
return NULL;
}
return af->fp;
}
static int aio_cmd_getfd(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
fflush(af->fp);
Jim_SetResultInt(interp, fileno(af->fp));
return JIM_OK;
}
static int aio_cmd_copy(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
jim_wide count = 0;
jim_wide maxlen = JIM_WIDE_MAX;
AioFile *outf = Jim_AioFile(interp, argv[0]);
if (outf == NULL) {
return JIM_ERR;
}
if (argc == 2) {
if (Jim_GetWide(interp, argv[1], &maxlen) != JIM_OK) {
return JIM_ERR;
}
}
while (count < maxlen) {
/* A reasonable compromise between stack size and speed */
char buf[AIO_BUF_LEN];
jim_wide len = maxlen - count;
if (len > sizeof(buf)) {
len = sizeof(buf);
}
len = af->fops->reader(af, buf, len);
if (len <= 0) {
break;
}
if (outf->fops->writer(outf, buf, len) != len) {
break;
}
count += len;
}
if (JimCheckStreamError(interp, af) || JimCheckStreamError(interp, outf)) {
return JIM_ERR;
}
Jim_SetResultInt(interp, count);
return JIM_OK;
}
static int aio_cmd_gets(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
char buf[AIO_BUF_LEN];
Jim_Obj *objPtr;
int len;
errno = 0;
objPtr = Jim_NewStringObj(interp, NULL, 0);
while (1) {
buf[AIO_BUF_LEN - 1] = '_';
if (af->fops->getline(af, buf, AIO_BUF_LEN) == NULL)
break;
if (buf[AIO_BUF_LEN - 1] == '\0' && buf[AIO_BUF_LEN - 2] != '\n') {
Jim_AppendString(interp, objPtr, buf, AIO_BUF_LEN - 1);
}
else {
len = strlen(buf);
if (len && (buf[len - 1] == '\n')) {
/* strip "\n" */
len--;
}
Jim_AppendString(interp, objPtr, buf, len);
break;
}
}
if (JimCheckStreamError(interp, af)) {
/* I/O error */
Jim_FreeNewObj(interp, objPtr);
return JIM_ERR;
}
if (argc) {
if (Jim_SetVariable(interp, argv[0], objPtr) != JIM_OK) {
Jim_FreeNewObj(interp, objPtr);
return JIM_ERR;
}
len = Jim_Length(objPtr);
if (len == 0 && af->fops->eof(af)) {
/* On EOF returns -1 if varName was specified */
len = -1;
}
Jim_SetResultInt(interp, len);
}
else {
Jim_SetResult(interp, objPtr);
}
return JIM_OK;
}
static int aio_cmd_puts(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
int wlen;
const char *wdata;
Jim_Obj *strObj;
if (argc == 2) {
if (!Jim_CompareStringImmediate(interp, argv[0], "-nonewline")) {
return -1;
}
strObj = argv[1];
}
else {
strObj = argv[0];
}
wdata = Jim_GetString(strObj, &wlen);
if (af->fops->writer(af, wdata, wlen) == wlen) {
if (argc == 2 || af->fops->writer(af, "\n", 1) == 1) {
return JIM_OK;
}
}
JimAioSetError(interp, af->filename);
return JIM_ERR;
}
static int aio_cmd_isatty(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
#ifdef HAVE_ISATTY
AioFile *af = Jim_CmdPrivData(interp);
Jim_SetResultInt(interp, isatty(fileno(af->fp)));
#else
Jim_SetResultInt(interp, 0);
#endif
return JIM_OK;
}
#if defined(HAVE_SOCKETS) && !defined(JIM_BOOTSTRAP)
static int aio_cmd_recvfrom(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
char *buf;
union sockaddr_any sa;
long len;
socklen_t salen = sizeof(sa);
int rlen;
if (Jim_GetLong(interp, argv[0], &len) != JIM_OK) {
return JIM_ERR;
}
buf = Jim_Alloc(len + 1);
rlen = recvfrom(fileno(af->fp), buf, len, 0, &sa.sa, &salen);
if (rlen < 0) {
Jim_Free(buf);
JimAioSetError(interp, NULL);
return JIM_ERR;
}
buf[rlen] = 0;
Jim_SetResult(interp, Jim_NewStringObjNoAlloc(interp, buf, rlen));
if (argc > 1) {
return JimSetVariableSocketAddress(interp, argv[1], &sa, salen);
}
return JIM_OK;
}
static int aio_cmd_sendto(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
int wlen;
int len;
const char *wdata;
union sockaddr_any sa;
const char *addr = Jim_String(argv[1]);
socklen_t salen;
if (JimParseSocketAddress(interp, af->addr_family, SOCK_DGRAM, addr, &sa, &salen) != JIM_OK) {
return JIM_ERR;
}
wdata = Jim_GetString(argv[0], &wlen);
/* Note that we don't validate the socket type. Rely on sendto() failing if appropriate */
len = sendto(fileno(af->fp), wdata, wlen, 0, &sa.sa, salen);
if (len < 0) {
JimAioSetError(interp, NULL);
return JIM_ERR;
}
Jim_SetResultInt(interp, len);
return JIM_OK;
}
static int aio_cmd_accept(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
int sock;
union sockaddr_any sa;
socklen_t salen = sizeof(sa);
sock = accept(af->fd, &sa.sa, &salen);
if (sock < 0) {
JimAioSetError(interp, NULL);
return JIM_ERR;
}
if (argc > 0) {
if (JimSetVariableSocketAddress(interp, argv[0], &sa, salen) != JIM_OK) {
return JIM_ERR;
}
}
/* Create the file command */
return JimMakeChannel(interp, NULL, sock, Jim_NewStringObj(interp, "accept", -1),
"aio.sockstream%ld", af->addr_family, "r+", AIO_NODELETE) ? JIM_OK : JIM_ERR;
}
static int aio_cmd_sockname(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
Jim_Obj *objPtr = aio_sockname(interp, af);
if (objPtr == NULL) {
JimAioSetError(interp, NULL);
return JIM_ERR;
}
Jim_SetResult(interp, objPtr);
return JIM_OK;
}
static int aio_cmd_peername(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
union sockaddr_any sa;
socklen_t salen = sizeof(sa);
if (getpeername(af->fd, &sa.sa, &salen) < 0) {
JimAioSetError(interp, NULL);
return JIM_ERR;
}
Jim_SetResult(interp, JimFormatSocketAddress(interp, &sa, salen));
return JIM_OK;
}
static int aio_cmd_listen(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
long backlog;
if (Jim_GetLong(interp, argv[0], &backlog) != JIM_OK) {
return JIM_ERR;
}
if (listen(af->fd, backlog)) {
JimAioSetError(interp, NULL);
return JIM_ERR;
}
return JIM_OK;
}
#endif /* JIM_BOOTSTRAP */
static int aio_cmd_flush(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
if (fflush(af->fp) == EOF) {
JimAioSetError(interp, af->filename);
return JIM_ERR;
}
return JIM_OK;
}
static int aio_cmd_eof(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
Jim_SetResultInt(interp, !!af->fops->eof(af));
return JIM_OK;
}
static int aio_cmd_close(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
if (argc == 3) {
int option = -1;
#if defined(HAVE_SOCKETS)
static const char * const options[] = { "r", "w", "-nodelete", NULL };
enum { OPT_R, OPT_W, OPT_NODELETE };
AioFile *af = Jim_CmdPrivData(interp);
if (Jim_GetEnum(interp, argv[2], options, &option, NULL, JIM_ERRMSG) != JIM_OK) {
return JIM_ERR;
}
#endif
switch (option) {
#if defined(HAVE_SHUTDOWN)
case OPT_R:
case OPT_W:
if (shutdown(af->fd, option == OPT_R ? SHUT_RD : SHUT_WR) == 0) {
return JIM_OK;
}
JimAioSetError(interp, NULL);
return JIM_ERR;
#endif
#if UNIX_SOCKETS
case OPT_NODELETE:
if (af->addr_family == PF_UNIX) {
af->flags |= AIO_NODELETE;
break;
}
/* fall through */
#endif
default:
Jim_SetResultString(interp, "not supported", -1);
return JIM_ERR;
}
}
return Jim_DeleteCommand(interp, argv[0]);
}
static int aio_cmd_seek(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
int orig = SEEK_SET;
jim_wide offset;
if (argc == 2) {
if (Jim_CompareStringImmediate(interp, argv[1], "start"))
orig = SEEK_SET;
else if (Jim_CompareStringImmediate(interp, argv[1], "current"))
orig = SEEK_CUR;
else if (Jim_CompareStringImmediate(interp, argv[1], "end"))
orig = SEEK_END;
else {
return -1;
}
}
if (Jim_GetWide(interp, argv[0], &offset) != JIM_OK) {
return JIM_ERR;
}
if (fseeko(af->fp, offset, orig) == -1) {
JimAioSetError(interp, af->filename);
return JIM_ERR;
}
return JIM_OK;
}
static int aio_cmd_tell(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
Jim_SetResultInt(interp, ftello(af->fp));
return JIM_OK;
}
static int aio_cmd_filename(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
Jim_SetResult(interp, af->filename);
return JIM_OK;
}
#ifdef O_NDELAY
static int aio_cmd_ndelay(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
int fmode = fcntl(af->fd, F_GETFL);
if (argc) {
long nb;
if (Jim_GetLong(interp, argv[0], &nb) != JIM_OK) {
return JIM_ERR;
}
if (nb) {
fmode |= O_NDELAY;
}
else {
fmode &= ~O_NDELAY;
}
(void)fcntl(af->fd, F_SETFL, fmode);
}
Jim_SetResultInt(interp, (fmode & O_NONBLOCK) ? 1 : 0);
return JIM_OK;
}
#endif
#if defined(HAVE_SOCKETS) && !defined(JIM_BOOTSTRAP)
#define SOCKOPT_BOOL 0
#define SOCKOPT_INT 1
#define SOCKOPT_TIMEVAL 2 /* not currently supported */
static const struct sockopt_def {
const char *name;
int level;
int opt;
int type; /* SOCKOPT_xxx */
} sockopts[] = {
#ifdef SOL_SOCKET
#ifdef SO_BROADCAST
{ "broadcast", SOL_SOCKET, SO_BROADCAST },
#endif
#ifdef SO_DEBUG
{ "debug", SOL_SOCKET, SO_DEBUG },
#endif
#ifdef SO_KEEPALIVE
{ "keepalive", SOL_SOCKET, SO_KEEPALIVE },
#endif
#ifdef SO_NOSIGPIPE
{ "nosigpipe", SOL_SOCKET, SO_NOSIGPIPE },
#endif
#ifdef SO_OOBINLINE
{ "oobinline", SOL_SOCKET, SO_OOBINLINE },
#endif
#ifdef SO_SNDBUF
{ "sndbuf", SOL_SOCKET, SO_SNDBUF, SOCKOPT_INT },
#endif
#ifdef SO_RCVBUF
{ "rcvbuf", SOL_SOCKET, SO_RCVBUF, SOCKOPT_INT },
#endif
#if 0 && defined(SO_SNDTIMEO)
{ "sndtimeo", SOL_SOCKET, SO_SNDTIMEO, SOCKOPT_TIMEVAL },
#endif
#if 0 && defined(SO_RCVTIMEO)
{ "rcvtimeo", SOL_SOCKET, SO_RCVTIMEO, SOCKOPT_TIMEVAL },
#endif
#endif
#ifdef IPPROTO_TCP
#ifdef TCP_NODELAY
{ "tcp_nodelay", IPPROTO_TCP, TCP_NODELAY },
#endif
#endif
};
static int aio_cmd_sockopt(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
size_t i;
if (argc == 0) {
Jim_Obj *dictObjPtr = Jim_NewListObj(interp, NULL, 0);
for (i = 0; i < sizeof(sockopts) / sizeof(*sockopts); i++) {
int value = 0;
socklen_t len = sizeof(value);
if (getsockopt(af->fd, sockopts[i].level, sockopts[i].opt, (void *)&value, &len) == 0) {
if (sockopts[i].type == SOCKOPT_BOOL) {
value = !!value;
}
Jim_ListAppendElement(interp, dictObjPtr, Jim_NewStringObj(interp, sockopts[i].name, -1));
Jim_ListAppendElement(interp, dictObjPtr, Jim_NewIntObj(interp, value));
}
}
Jim_SetResult(interp, dictObjPtr);
return JIM_OK;
}
if (argc == 1) {
return -1;
}
/* Set an option */
for (i = 0; i < sizeof(sockopts) / sizeof(*sockopts); i++) {
if (strcmp(Jim_String(argv[0]), sockopts[i].name) == 0) {
int on;
if (sockopts[i].type == SOCKOPT_BOOL) {
if (Jim_GetBoolean(interp, argv[1], &on) != JIM_OK) {
return JIM_ERR;
}
}
else {
long longval;
if (Jim_GetLong(interp, argv[1], &longval) != JIM_OK) {
return JIM_ERR;
}
on = longval;
}
if (setsockopt(af->fd, sockopts[i].level, sockopts[i].opt, (void *)&on, sizeof(on)) < 0) {
Jim_SetResultFormatted(interp, "Failed to set %#s: %s", argv[0], strerror(errno));
return JIM_ERR;
}
return JIM_OK;
}
}
/* Not found */
Jim_SetResultFormatted(interp, "Unknown sockopt %#s", argv[0]);
return JIM_ERR;
}
#endif /* JIM_BOOTSTRAP */
#ifdef HAVE_FSYNC
static int aio_cmd_sync(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
fflush(af->fp);
fsync(af->fd);
return JIM_OK;
}
#endif
static int aio_cmd_buffering(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
static const char * const options[] = {
"none",
"line",
"full",
NULL
};
enum
{
OPT_NONE,
OPT_LINE,
OPT_FULL,
};
int option;
if (Jim_GetEnum(interp, argv[0], options, &option, NULL, JIM_ERRMSG) != JIM_OK) {
return JIM_ERR;
}
switch (option) {
case OPT_NONE:
setvbuf(af->fp, NULL, _IONBF, 0);
break;
case OPT_LINE:
setvbuf(af->fp, NULL, _IOLBF, BUFSIZ);
break;
case OPT_FULL:
setvbuf(af->fp, NULL, _IOFBF, BUFSIZ);
break;
}
return JIM_OK;
}
#ifdef jim_ext_eventloop
static int aio_eventinfo(Jim_Interp *interp, AioFile * af, unsigned mask,
int argc, Jim_Obj * const *argv)
{
if (argc == 0) {
/* Return current script */
Jim_Obj *objPtr = Jim_FindFileHandler(interp, af->fd, mask);
if (objPtr) {
Jim_SetResult(interp, objPtr);
}
return JIM_OK;
}
/* Delete old handler */
Jim_DeleteFileHandler(interp, af->fd, mask);
/* Now possibly add the new script(s) */
if (Jim_Length(argv[0])) {
Jim_CreateScriptFileHandler(interp, af->fd, mask, argv[0]);
}
return JIM_OK;
}
static int aio_cmd_readable(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
return aio_eventinfo(interp, af, JIM_EVENT_READABLE, argc, argv);
}
static int aio_cmd_writable(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
return aio_eventinfo(interp, af, JIM_EVENT_WRITABLE, argc, argv);
}
static int aio_cmd_onexception(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
return aio_eventinfo(interp, af, JIM_EVENT_EXCEPTION, argc, argv);
}
#endif
#if defined(JIM_SSL) && !defined(JIM_BOOTSTRAP)
static int aio_cmd_ssl(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
SSL *ssl;
SSL_CTX *ssl_ctx;
int server = 0;
const char *sni = NULL;
if (argc > 2) {
static const char * const options[] = { "-server", "-sni", NULL };
enum { OPT_SERVER, OPT_SNI };
int option;
if (Jim_GetEnum(interp, argv[2], options, &option, NULL, JIM_ERRMSG) != JIM_OK) {
return JIM_ERR;
}
switch (option) {
case OPT_SERVER:
if (argc != 4 && argc != 5) {
return JIM_ERR;
}
server = 1;
break;
case OPT_SNI:
if (argc != 4) {
return JIM_ERR;
}
sni = Jim_String(argv[3]);
break;
}
}
if (af->ssl) {
Jim_SetResultFormatted(interp, "%#s: stream is already ssl", argv[0]);
return JIM_ERR;
}
ssl_ctx = JimAioSslCtx(interp);
if (ssl_ctx == NULL) {
return JIM_ERR;
}
ssl = SSL_new(ssl_ctx);
if (ssl == NULL) {
goto out;
}
SSL_set_cipher_list(ssl, "ALL");
if (SSL_set_fd(ssl, fileno(af->fp)) == 0) {
goto out;
}
if (server) {
const char *certfile = Jim_String(argv[3]);
const char *keyfile = (argc == 4) ? certfile : Jim_String(argv[4]);
if (SSL_use_certificate_file(ssl, certfile, SSL_FILETYPE_PEM) != 1) {
goto out;
}
if (SSL_use_PrivateKey_file(ssl, keyfile, SSL_FILETYPE_PEM) != 1) {
goto out;
}
if (SSL_accept(ssl) != 1) {
goto out;
}
}
else {
if (sni) {
/* Set server name indication if requested */
SSL_set_tlsext_host_name(ssl, sni);
}
if (SSL_connect(ssl) != 1) {
goto out;
}
}
af->ssl = ssl;
af->fops = &ssl_fops;
/* Set the command name as the result */
Jim_SetResult(interp, argv[0]);
return JIM_OK;
out:
if (ssl) {
SSL_free(ssl);
}
Jim_SetResultString(interp, ERR_error_string(ERR_get_error(), NULL), -1);
return JIM_ERR;
}
static int aio_cmd_verify(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
int ret;
if (!af->fops->verify) {
return JIM_OK;
}
ret = af->fops->verify(af);
if (ret != JIM_OK) {
if (JimCheckStreamError(interp, af) == JIM_OK) {
Jim_SetResultString(interp, "failed to verify the connection authenticity", -1);
}
}
return ret;
}
#endif /* JIM_BOOTSTRAP */
#if defined(HAVE_STRUCT_FLOCK) && !defined(JIM_BOOTSTRAP)
static int aio_cmd_lock(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
struct flock fl;
int lockmode = F_SETLK;
if (argc == 1) {
if (!Jim_CompareStringImmediate(interp, argv[0], "-wait")) {
return -1;
}
lockmode = F_SETLKW;
}
fl.l_start = 0;
fl.l_len = 0;
fl.l_type = F_WRLCK;
fl.l_whence = SEEK_SET;
switch (fcntl(af->fd, lockmode, &fl))
{
case 0:
Jim_SetResultInt(interp, 1);
break;
case -1:
if (errno == EACCES || errno == EAGAIN)
Jim_SetResultInt(interp, 0);
else
{
Jim_SetResultFormatted(interp, "lock failed: %s",
strerror(errno));
return JIM_ERR;
}
break;
default:
Jim_SetResultInt(interp, 0);
break;
}
return JIM_OK;
}
static int aio_cmd_unlock(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
struct flock fl;
fl.l_start = 0;
fl.l_len = 0;
fl.l_type = F_UNLCK;
fl.l_whence = SEEK_SET;
Jim_SetResultInt(interp, fcntl(af->fd, F_SETLK, &fl) == 0);
return JIM_OK;
}
#endif /* JIM_BOOTSTRAP */
#if defined(HAVE_TERMIOS_H) && !defined(JIM_BOOTSTRAP)
static int aio_cmd_tty(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
AioFile *af = Jim_CmdPrivData(interp);
Jim_Obj *dictObjPtr;
int ret;
if (argc == 0) {
/* get the current settings as a dictionary */
dictObjPtr = Jim_GetTtySettings(interp, af->fd);
if (dictObjPtr == NULL) {
JimAioSetError(interp, NULL);
return JIM_ERR;
}
Jim_SetResult(interp, dictObjPtr);
return JIM_OK;
}
if (argc > 1) {
/* Convert name value arguments to a dictionary */
dictObjPtr = Jim_NewListObj(interp, argv, argc);
}
else {
/* The settings are already given as a list */
dictObjPtr = argv[0];
}
Jim_IncrRefCount(dictObjPtr);
if (Jim_ListLength(interp, dictObjPtr) % 2) {
/* Must be a valid dictionary */
Jim_DecrRefCount(interp, dictObjPtr);
return -1;
}
ret = Jim_SetTtySettings(interp, af->fd, dictObjPtr);
if (ret < 0) {
JimAioSetError(interp, NULL);
ret = JIM_ERR;
}
Jim_DecrRefCount(interp, dictObjPtr);
return ret;
}
#endif /* JIM_BOOTSTRAP */
static const jim_subcmd_type aio_command_table[] = {
{ "read",
"?-nonewline|-pending|len?",
aio_cmd_read,
0,
2,
/* Description: Read and return bytes from the stream. To eof if no len. */
},
{ "copyto",
"handle ?size?",
aio_cmd_copy,
1,
2,
/* Description: Copy up to 'size' bytes to the given filehandle, or to eof if no size. */
},
{ "getfd",
NULL,
aio_cmd_getfd,
0,
0,
/* Description: Internal command to return the underlying file descriptor. */
},
{ "gets",
"?var?",
aio_cmd_gets,
0,
1,
/* Description: Read one line and return it or store it in the var */
},
{ "puts",
"?-nonewline? str",
aio_cmd_puts,
1,
2,
/* Description: Write the string, with newline unless -nonewline */
},
{ "isatty",
NULL,
aio_cmd_isatty,
0,
0,
/* Description: Is the file descriptor a tty? */
},
#if defined(HAVE_SOCKETS) && !defined(JIM_BOOTSTRAP)
{ "recvfrom",
"len ?addrvar?",
aio_cmd_recvfrom,
1,
2,
/* Description: Receive up to 'len' bytes on the socket. Sets 'addrvar' with receive address, if set */
},
{ "sendto",
"str address",
aio_cmd_sendto,
2,
2,
/* Description: Send 'str' to the given address (dgram only) */
},
{ "accept",
"?addrvar?",
aio_cmd_accept,
0,
1,
/* Description: Server socket only: Accept a connection and return stream */
},
{ "listen",
"backlog",
aio_cmd_listen,
1,
1,
/* Description: Set the listen backlog for server socket */
},
{ "sockopt",
"?opt 0|1?",
aio_cmd_sockopt,
0,
2,
/* Description: Return a dictionary of sockopts, or set the value of a sockopt */
},
{ "sockname",
NULL,
aio_cmd_sockname,
0,
0,
/* Description: Returns the local address of the socket, if any */
},
{ "peername",
NULL,
aio_cmd_peername,
0,
0,
/* Description: Returns the remote address of the socket, if any */
},
#endif /* JIM_BOOTSTRAP */
{ "flush",
NULL,
aio_cmd_flush,
0,
0,
/* Description: Flush the stream */
},
{ "eof",
NULL,
aio_cmd_eof,
0,
0,
/* Description: Returns 1 if stream is at eof */
},
{ "close",
"?r(ead)|w(rite)?",
aio_cmd_close,
0,
1,
JIM_MODFLAG_FULLARGV,
/* Description: Closes the stream. */
},
{ "seek",
"offset ?start|current|end",
aio_cmd_seek,
1,
2,
/* Description: Seeks in the stream (default 'current') */
},
{ "tell",
NULL,
aio_cmd_tell,
0,
0,
/* Description: Returns the current seek position */
},
{ "filename",
NULL,
aio_cmd_filename,
0,
0,
/* Description: Returns the original filename */
},
#ifdef O_NDELAY
{ "ndelay",
"?0|1?",
aio_cmd_ndelay,
0,
1,
/* Description: Set O_NDELAY (if arg). Returns current/new setting. */
},
#endif
#ifdef HAVE_FSYNC
{ "sync",
NULL,
aio_cmd_sync,
0,
0,
/* Description: Flush and fsync() the stream */
},
#endif
{ "buffering",
"none|line|full",
aio_cmd_buffering,
1,
1,
/* Description: Sets buffering */
},
#ifdef jim_ext_eventloop
{ "readable",
"?readable-script?",
aio_cmd_readable,
0,
1,
/* Description: Returns script, or invoke readable-script when readable, {} to remove */
},
{ "writable",
"?writable-script?",
aio_cmd_writable,
0,
1,
/* Description: Returns script, or invoke writable-script when writable, {} to remove */
},
{ "onexception",
"?exception-script?",
aio_cmd_onexception,
0,
1,
/* Description: Returns script, or invoke exception-script when oob data, {} to remove */
},
#endif
#if !defined(JIM_BOOTSTRAP)
#if defined(JIM_SSL)
{ "ssl",
"?-server cert ?priv?|-sni servername?",
aio_cmd_ssl,
0,
3,
JIM_MODFLAG_FULLARGV
/* Description: Wraps a stream socket with SSL/TLS and returns a new channel */
},
{ "verify",
NULL,
aio_cmd_verify,
0,
0,
/* Description: Verifies the certificate of a SSL/TLS channel */
},
#endif
#if defined(HAVE_STRUCT_FLOCK)
{ "lock",
"?-wait?",
aio_cmd_lock,
0,
1,
/* Description: Attempt to get a lock, possibly waiting */
},
{ "unlock",
NULL,
aio_cmd_unlock,
0,
0,
/* Description: Relase a lock. */
},
#endif
#if defined(HAVE_TERMIOS_H)
{ "tty",
"?baud rate? ?data bits? ?stop bits? ?parity even|odd|none? ?handshake xonxoff|rtscts|none? ?input raw|cooked? ?output raw|cooked? ?echo 0|1? ?vmin n? ?vtime n?",
aio_cmd_tty,
0,
-1,
/* Description: Get or set tty settings - valid only on a tty */
},
#endif
#endif /* JIM_BOOTSTRAP */
{ NULL }
};
static int JimAioSubCmdProc(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
return Jim_CallSubCmd(interp, Jim_ParseSubCmd(interp, aio_command_table, argc, argv), argc, argv);
}
static int JimAioOpenCommand(Jim_Interp *interp, int argc,
Jim_Obj *const *argv)
{
const char *mode;
FILE *fh = NULL;
const char *filename;
int fd = -1;
if (argc != 2 && argc != 3) {
Jim_WrongNumArgs(interp, 1, argv, "filename ?mode?");
return JIM_ERR;
}
filename = Jim_String(argv[1]);
mode = (argc == 3) ? Jim_String(argv[2]) : "r";
#ifdef jim_ext_tclcompat
{
/* If the filename starts with '|', use popen instead */
if (*filename == '|') {
Jim_Obj *evalObj[3];
evalObj[0] = Jim_NewStringObj(interp, "::popen", -1);
evalObj[1] = Jim_NewStringObj(interp, filename + 1, -1);
evalObj[2] = Jim_NewStringObj(interp, mode, -1);
return Jim_EvalObjVector(interp, 3, evalObj);
}
}
#endif
#ifndef JIM_ANSIC
if (*mode == 'R' || *mode == 'W') {
/* POSIX flags */
#ifndef O_NOCTTY
/* mingw doesn't support this flag */
#define O_NOCTTY 0
#endif
static const char * const modetypes[] = {
"RDONLY", "WRONLY", "RDWR", "APPEND", "BINARY", "CREAT", "EXCL", "NOCTTY", "TRUNC", NULL
};
static const char * const simplemodes[] = {
"r", "w", "w+"
};
static const int modeflags[] = {
O_RDONLY, O_WRONLY, O_RDWR, O_APPEND, 0, O_CREAT, O_EXCL, O_NOCTTY, O_TRUNC,
};
int posixflags = 0;
int len = Jim_ListLength(interp, argv[2]);
int i;
int opt;
mode = NULL;
for (i = 0; i < len; i++) {
Jim_Obj *objPtr = Jim_ListGetIndex(interp, argv[2], i);
if (Jim_GetEnum(interp, objPtr, modetypes, &opt, "access mode", JIM_ERRMSG) != JIM_OK) {
return JIM_ERR;
}
if (opt < 3) {
mode = simplemodes[opt];
}
posixflags |= modeflags[opt];
}
/* mode must be set here if it started with 'R' or 'W' and passed the enum check above */
assert(mode);
fd = open(filename, posixflags, 0666);
if (fd >= 0) {
fh = fdopen(fd, mode);
if (fh == NULL) {
close(fd);
}
}
}
else
#endif
{
fh = fopen(filename, mode);
}
if (fh == NULL) {
JimAioSetError(interp, argv[1]);
return JIM_ERR;
}
return JimMakeChannel(interp, fh, fd, argv[1], "aio.handle%ld", 0, mode, 0) ? JIM_OK : JIM_ERR;
}
#if defined(JIM_SSL) && !defined(JIM_BOOTSTRAP)
static void JimAioSslContextDelProc(struct Jim_Interp *interp, void *privData)
{
SSL_CTX_free((SSL_CTX *)privData);
ERR_free_strings();
}
#ifdef USE_TLSv1_2_method
#define TLS_method TLSv1_2_method
#endif
static SSL_CTX *JimAioSslCtx(Jim_Interp *interp)
{
SSL_CTX *ssl_ctx = (SSL_CTX *)Jim_GetAssocData(interp, "ssl_ctx");
if (ssl_ctx == NULL) {
SSL_load_error_strings();
SSL_library_init();
ssl_ctx = SSL_CTX_new(TLS_method());
if (ssl_ctx && SSL_CTX_set_default_verify_paths(ssl_ctx)) {
SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_NONE, NULL);
Jim_SetAssocData(interp, "ssl_ctx", JimAioSslContextDelProc, ssl_ctx);
} else {
Jim_SetResultString(interp, ERR_error_string(ERR_get_error(), NULL), -1);
}
}
return ssl_ctx;
}
#endif /* JIM_BOOTSTRAP */
/**
* Creates a channel for fh/fd/filename.
*
* If fh is not NULL, uses that as the channel (and sets AIO_KEEPOPEN).
* Otherwise fd must be >= 0, in which case it uses that as the channel.
*
* hdlfmt is a sprintf format for the filehandle. Anything with %ld at the end will do.
* mode is used for open or fdopen.
*
* Creates the command and sets the name as the current result.
* Returns the AioFile pointer on sucess or NULL on failure (only if fdopen fails).
*/
static AioFile *JimMakeChannel(Jim_Interp *interp, FILE *fh, int fd, Jim_Obj *filename,
const char *hdlfmt, int family, const char *mode, int flags)
{
AioFile *af;
char buf[AIO_CMD_LEN];
Jim_Obj *cmdname;
if (fh == NULL) {
assert(fd >= 0);
#ifndef JIM_ANSIC
fh = fdopen(fd, mode);
if (fh == NULL) {
JimAioSetError(interp, filename);
close(fd);
return NULL;
}
#endif
}
snprintf(buf, sizeof(buf), hdlfmt, Jim_GetId(interp));
cmdname = Jim_NewStringObj(interp, buf, -1);
if (!filename) {
filename = cmdname;
}
Jim_IncrRefCount(filename);
/* Create the file command */
af = Jim_Alloc(sizeof(*af));
memset(af, 0, sizeof(*af));
af->fp = fh;
af->filename = filename;
af->flags = flags;
#ifndef JIM_ANSIC
af->fd = fileno(fh);
#ifdef FD_CLOEXEC
if ((flags & AIO_KEEPOPEN) == 0) {
(void)fcntl(af->fd, F_SETFD, FD_CLOEXEC);
}
#endif
#endif
af->addr_family = family;
af->fops = &stdio_fops;
af->ssl = NULL;
Jim_CreateCommand(interp, buf, JimAioSubCmdProc, af, JimAioDelProc);
/* Note that the command must use the global namespace, even if
* the current namespace is something different
*/
Jim_SetResult(interp, Jim_MakeGlobalNamespaceName(interp, cmdname));
return af;
}
#if defined(HAVE_PIPE) || (defined(HAVE_SOCKETPAIR) && UNIX_SOCKETS) || defined(HAVE_OPENPTY)
/**
* Create a pair of channels. e.g. from pipe() or socketpair()
*/
static int JimMakeChannelPair(Jim_Interp *interp, int p[2], Jim_Obj *filename,
const char *hdlfmt, int family, const char * const mode[2])
{
if (JimMakeChannel(interp, NULL, p[0], filename, hdlfmt, family, mode[0], 0)) {
Jim_Obj *objPtr = Jim_NewListObj(interp, NULL, 0);
Jim_ListAppendElement(interp, objPtr, Jim_GetResult(interp));
if (JimMakeChannel(interp, NULL, p[1], filename, hdlfmt, family, mode[1], 0)) {
Jim_ListAppendElement(interp, objPtr, Jim_GetResult(interp));
Jim_SetResult(interp, objPtr);
return JIM_OK;
}
}
/* Can only be here if fdopen() failed */
close(p[0]);
close(p[1]);
JimAioSetError(interp, NULL);
return JIM_ERR;
}
#endif
#ifdef HAVE_PIPE
static int JimAioPipeCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
int p[2];
static const char * const mode[2] = { "r", "w" };
if (argc != 1) {
Jim_WrongNumArgs(interp, 1, argv, "");
return JIM_ERR;
}
if (pipe(p) != 0) {
JimAioSetError(interp, NULL);
return JIM_ERR;
}
return JimMakeChannelPair(interp, p, argv[0], "aio.pipe%ld", 0, mode);
}
#endif
#ifdef HAVE_OPENPTY
static int JimAioOpenPtyCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
int p[2];
static const char * const mode[2] = { "r+", "w+" };
if (argc != 1) {
Jim_WrongNumArgs(interp, 1, argv, "");
return JIM_ERR;
}
if (openpty(&p[0], &p[1], NULL, NULL, NULL) != 0) {
JimAioSetError(interp, NULL);
return JIM_ERR;
}
return JimMakeChannelPair(interp, p, argv[0], "aio.pty%ld", 0, mode);
}
#endif
#if defined(HAVE_SOCKETS) && !defined(JIM_BOOTSTRAP)
static int JimAioSockCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
const char *socktypes[] = {
"unix",
"unix.server",
"unix.dgram",
"unix.dgram.server",
"dgram",
"dgram.server",
"stream",
"stream.server",
"pipe",
"pair",
"pty",
NULL
};
enum
{
SOCK_UNIX,
SOCK_UNIX_SERVER,
SOCK_UNIX_DGRAM,
SOCK_UNIX_DGRAM_SERVER,
SOCK_DGRAM_CLIENT,
SOCK_DGRAM_SERVER,
SOCK_STREAM_CLIENT,
SOCK_STREAM_SERVER,
SOCK_STREAM_PIPE,
SOCK_STREAM_SOCKETPAIR,
SOCK_STREAM_PTY,
};
int socktype;
int sock;
const char *addr = NULL;
const char *bind_addr = NULL;
const char *connect_addr = NULL;
union sockaddr_any sa;
socklen_t salen;
int on = 1;
int reuse = 0;
int do_listen = 0;
int family = PF_INET;
int type = SOCK_STREAM;
Jim_Obj *argv0 = argv[0];
int ipv6 = 0;
if (argc > 1 && Jim_CompareStringImmediate(interp, argv[1], "-ipv6")) {
if (!IPV6) {
Jim_SetResultString(interp, "ipv6 not supported", -1);
return JIM_ERR;
}
ipv6 = 1;
family = PF_INET6;
}
argc -= ipv6;
argv += ipv6;
if (argc < 2) {
wrongargs:
Jim_WrongNumArgs(interp, 1, &argv0, "?-ipv6? type ?address?");
return JIM_ERR;
}
if (Jim_GetEnum(interp, argv[1], socktypes, &socktype, "socket type", JIM_ERRMSG) != JIM_OK)
return Jim_CheckShowCommands(interp, argv[1], socktypes);
Jim_SetEmptyResult(interp);
if (argc > 2) {
addr = Jim_String(argv[2]);
}
#if defined(HAVE_SOCKETPAIR) && UNIX_SOCKETS
if (socktype == SOCK_STREAM_SOCKETPAIR) {
int p[2];
static const char * const mode[2] = { "r+", "r+" };
if (addr || ipv6) {
goto wrongargs;
}
if (socketpair(PF_UNIX, SOCK_STREAM, 0, p) < 0) {
JimAioSetError(interp, NULL);
return JIM_ERR;
}
return JimMakeChannelPair(interp, p, argv[1], "aio.sockpair%ld", PF_UNIX, mode);
}
#endif
#if defined(HAVE_PIPE)
if (socktype == SOCK_STREAM_PIPE) {
if (addr || ipv6) {
goto wrongargs;
}
return JimAioPipeCommand(interp, 1, &argv[1]);
}
#endif
/* Now all these socket types are very similar */
switch (socktype) {
case SOCK_DGRAM_CLIENT:
connect_addr = addr;
type = SOCK_DGRAM;
break;
case SOCK_STREAM_CLIENT:
if (addr == NULL) {
goto wrongargs;
}
connect_addr = addr;
break;
case SOCK_STREAM_SERVER:
if (addr == NULL) {
goto wrongargs;
}
bind_addr = addr;
reuse = 1;
do_listen = 1;
break;
case SOCK_DGRAM_SERVER:
if (addr == NULL) {
goto wrongargs;
}
bind_addr = addr;
type = SOCK_DGRAM;
reuse = 1;
break;
#if UNIX_SOCKETS
case SOCK_UNIX:
if (addr == NULL) {
goto wrongargs;
}
connect_addr = addr;
family = PF_UNIX;
break;
case SOCK_UNIX_DGRAM:
connect_addr = addr;
type = SOCK_DGRAM;
family = PF_UNIX;
/* A dgram unix domain socket client needs to bind
* to a temporary address to allow the server to
* send responses
*/
{
int tmpfd = Jim_MakeTempFile(interp, NULL, 1);
if (tmpfd < 0) {
return JIM_ERR;
}
close(tmpfd);
/* This will be valid until a result is next set, which is long enough here */
bind_addr = Jim_String(Jim_GetResult(interp));
}
break;
case SOCK_UNIX_SERVER:
if (addr == NULL) {
goto wrongargs;
}
bind_addr = addr;
family = PF_UNIX;
do_listen = 1;
break;
case SOCK_UNIX_DGRAM_SERVER:
if (addr == NULL) {
goto wrongargs;
}
bind_addr = addr;
type = SOCK_DGRAM;
family = PF_UNIX;
break;
#endif
#ifdef HAVE_OPENPTY
case SOCK_STREAM_PTY:
if (addr || ipv6) {
goto wrongargs;
}
return JimAioOpenPtyCommand(interp, 1, &argv[1]);
#endif
default:
Jim_SetResultString(interp, "Unsupported socket type", -1);
return JIM_ERR;
}
/* Now do all the steps necessary for the given socket type */
sock = socket(family, type, 0);
if (sock < 0) {
JimAioSetError(interp, NULL);
return JIM_ERR;
}
if (bind_addr) {
if (JimParseSocketAddress(interp, family, type, bind_addr, &sa, &salen) != JIM_OK) {
close(sock);
return JIM_ERR;
}
if (reuse) {
setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *)&on, sizeof(on));
}
if (bind(sock, &sa.sa, salen)) {
Jim_SetResultFormatted(interp, "%s: bind: %s", bind_addr, strerror(errno));
close(sock);
return JIM_ERR;
}
}
if (connect_addr) {
if (JimParseSocketAddress(interp, family, type, connect_addr, &sa, &salen) != JIM_OK) {
close(sock);
return JIM_ERR;
}
if (connect(sock, &sa.sa, salen)) {
Jim_SetResultFormatted(interp, "%s: connect: %s", connect_addr, strerror(errno));
close(sock);
return JIM_ERR;
}
}
if (do_listen) {
if (listen(sock, 5)) {
Jim_SetResultFormatted(interp, "listen: %s", strerror(errno));
close(sock);
return JIM_ERR;
}
}
return JimMakeChannel(interp, NULL, sock, argv[1], "aio.sock%ld", family, "r+", 0) ? JIM_OK : JIM_ERR;
}
#endif /* JIM_BOOTSTRAP */
#if defined(JIM_SSL) && !defined(JIM_BOOTSTRAP)
static int JimAioLoadSSLCertsCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
SSL_CTX *ssl_ctx;
if (argc != 2) {
Jim_WrongNumArgs(interp, 1, argv, "dir");
return JIM_ERR;
}
ssl_ctx = JimAioSslCtx(interp);
if (!ssl_ctx) {
return JIM_ERR;
}
if (SSL_CTX_load_verify_locations(ssl_ctx, NULL, Jim_String(argv[1])) == 1) {
return JIM_OK;
}
Jim_SetResultString(interp, ERR_error_string(ERR_get_error(), NULL), -1);
return JIM_ERR;
}
#endif /* JIM_BOOTSTRAP */
int Jim_aioInit(Jim_Interp *interp)
{
if (Jim_PackageProvide(interp, "aio", "1.0", JIM_ERRMSG))
return JIM_ERR;
#if defined(JIM_SSL)
Jim_CreateCommand(interp, "load_ssl_certs", JimAioLoadSSLCertsCommand, NULL, NULL);
#endif
Jim_CreateCommand(interp, "open", JimAioOpenCommand, NULL, NULL);
#ifdef HAVE_SOCKETS
Jim_CreateCommand(interp, "socket", JimAioSockCommand, NULL, NULL);
#endif
#ifdef HAVE_PIPE
Jim_CreateCommand(interp, "pipe", JimAioPipeCommand, NULL, NULL);
#endif
/* Create filehandles for stdin, stdout and stderr */
JimMakeChannel(interp, stdin, -1, NULL, "stdin", 0, "r", AIO_KEEPOPEN);
JimMakeChannel(interp, stdout, -1, NULL, "stdout", 0, "w", AIO_KEEPOPEN);
JimMakeChannel(interp, stderr, -1, NULL, "stderr", 0, "w", AIO_KEEPOPEN);
return JIM_OK;
}
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