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curl/src/tool_setopt.c

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "tool_setup.h"
#ifndef CURL_DISABLE_LIBCURL_OPTION
#define ENABLE_CURLX_PRINTF
/* use our own printf() functions */
#include "curlx.h"
#include "tool_cfgable.h"
#include "tool_easysrc.h"
#include "tool_setopt.h"
#include "tool_convert.h"
#include "memdebug.h" /* keep this as LAST include */
/* Lookup tables for converting setopt values back to symbols */
/* For enums, values may be in any order. */
/* For bit masks, put combinations first, then single bits, */
/* and finally any "NONE" value. */
#define NV(e) {#e, e}
#define NV1(e, v) {#e, (v)}
#define NVEND {NULL, 0} /* sentinel to mark end of list */
const NameValue setopt_nv_CURLPROXY[] = {
NV(CURLPROXY_HTTP),
NV(CURLPROXY_HTTP_1_0),
proxy: Support HTTPS proxy and SOCKS+HTTP(s) * HTTPS proxies: An HTTPS proxy receives all transactions over an SSL/TLS connection. Once a secure connection with the proxy is established, the user agent uses the proxy as usual, including sending CONNECT requests to instruct the proxy to establish a [usually secure] TCP tunnel with an origin server. HTTPS proxies protect nearly all aspects of user-proxy communications as opposed to HTTP proxies that receive all requests (including CONNECT requests) in vulnerable clear text. With HTTPS proxies, it is possible to have two concurrent _nested_ SSL/TLS sessions: the "outer" one between the user agent and the proxy and the "inner" one between the user agent and the origin server (through the proxy). This change adds supports for such nested sessions as well. A secure connection with a proxy requires its own set of the usual SSL options (their actual descriptions differ and need polishing, see TODO): --proxy-cacert FILE CA certificate to verify peer against --proxy-capath DIR CA directory to verify peer against --proxy-cert CERT[:PASSWD] Client certificate file and password --proxy-cert-type TYPE Certificate file type (DER/PEM/ENG) --proxy-ciphers LIST SSL ciphers to use --proxy-crlfile FILE Get a CRL list in PEM format from the file --proxy-insecure Allow connections to proxies with bad certs --proxy-key KEY Private key file name --proxy-key-type TYPE Private key file type (DER/PEM/ENG) --proxy-pass PASS Pass phrase for the private key --proxy-ssl-allow-beast Allow security flaw to improve interop --proxy-sslv2 Use SSLv2 --proxy-sslv3 Use SSLv3 --proxy-tlsv1 Use TLSv1 --proxy-tlsuser USER TLS username --proxy-tlspassword STRING TLS password --proxy-tlsauthtype STRING TLS authentication type (default SRP) All --proxy-foo options are independent from their --foo counterparts, except --proxy-crlfile which defaults to --crlfile and --proxy-capath which defaults to --capath. Curl now also supports %{proxy_ssl_verify_result} --write-out variable, similar to the existing %{ssl_verify_result} variable. Supported backends: OpenSSL, GnuTLS, and NSS. * A SOCKS proxy + HTTP/HTTPS proxy combination: If both --socks* and --proxy options are given, Curl first connects to the SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS proxy. TODO: Update documentation for the new APIs and --proxy-* options. Look for "Added in 7.XXX" marks.
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NV(CURLPROXY_HTTPS),
NV(CURLPROXY_SOCKS4),
NV(CURLPROXY_SOCKS5),
NV(CURLPROXY_SOCKS4A),
NV(CURLPROXY_SOCKS5_HOSTNAME),
NVEND,
};
const NameValue setopt_nv_CURL_SOCKS_PROXY[] = {
NV(CURLPROXY_SOCKS4),
NV(CURLPROXY_SOCKS5),
NV(CURLPROXY_SOCKS4A),
NV(CURLPROXY_SOCKS5_HOSTNAME),
NVEND,
};
const NameValueUnsigned setopt_nv_CURLAUTH[] = {
NV(CURLAUTH_ANY), /* combination */
NV(CURLAUTH_ANYSAFE), /* combination */
NV(CURLAUTH_BASIC),
NV(CURLAUTH_DIGEST),
NV(CURLAUTH_GSSNEGOTIATE),
NV(CURLAUTH_NTLM),
NV(CURLAUTH_DIGEST_IE),
NV(CURLAUTH_NTLM_WB),
NV(CURLAUTH_ONLY),
NV(CURLAUTH_NONE),
NVEND,
};
const NameValue setopt_nv_CURL_HTTP_VERSION[] = {
NV(CURL_HTTP_VERSION_NONE),
NV(CURL_HTTP_VERSION_1_0),
NV(CURL_HTTP_VERSION_1_1),
NV(CURL_HTTP_VERSION_2_0),
NV(CURL_HTTP_VERSION_2TLS),
NVEND,
};
const NameValue setopt_nv_CURL_SSLVERSION[] = {
NV(CURL_SSLVERSION_DEFAULT),
NV(CURL_SSLVERSION_TLSv1),
NV(CURL_SSLVERSION_SSLv2),
NV(CURL_SSLVERSION_SSLv3),
NV(CURL_SSLVERSION_TLSv1_0),
NV(CURL_SSLVERSION_TLSv1_1),
NV(CURL_SSLVERSION_TLSv1_2),
NV(CURL_SSLVERSION_TLSv1_3),
NVEND,
};
const NameValue setopt_nv_CURL_TIMECOND[] = {
NV(CURL_TIMECOND_IFMODSINCE),
NV(CURL_TIMECOND_IFUNMODSINCE),
NV(CURL_TIMECOND_LASTMOD),
NV(CURL_TIMECOND_NONE),
NVEND,
};
const NameValue setopt_nv_CURLFTPSSL_CCC[] = {
NV(CURLFTPSSL_CCC_NONE),
NV(CURLFTPSSL_CCC_PASSIVE),
NV(CURLFTPSSL_CCC_ACTIVE),
NVEND,
};
const NameValue setopt_nv_CURLUSESSL[] = {
NV(CURLUSESSL_NONE),
NV(CURLUSESSL_TRY),
NV(CURLUSESSL_CONTROL),
NV(CURLUSESSL_ALL),
NVEND,
};
const NameValueUnsigned setopt_nv_CURLSSLOPT[] = {
NV(CURLSSLOPT_ALLOW_BEAST),
NV(CURLSSLOPT_NO_REVOKE),
NVEND,
};
const NameValue setopt_nv_CURL_NETRC[] = {
NV(CURL_NETRC_IGNORED),
NV(CURL_NETRC_OPTIONAL),
NV(CURL_NETRC_REQUIRED),
NVEND,
};
/* These mappings essentially triplicated - see
* tool_libinfo.c and tool_paramhlp.c */
const NameValue setopt_nv_CURLPROTO[] = {
NV(CURLPROTO_ALL), /* combination */
NV(CURLPROTO_DICT),
NV(CURLPROTO_FILE),
NV(CURLPROTO_FTP),
NV(CURLPROTO_FTPS),
NV(CURLPROTO_GOPHER),
NV(CURLPROTO_HTTP),
NV(CURLPROTO_HTTPS),
NV(CURLPROTO_IMAP),
NV(CURLPROTO_IMAPS),
NV(CURLPROTO_LDAP),
NV(CURLPROTO_LDAPS),
NV(CURLPROTO_POP3),
NV(CURLPROTO_POP3S),
NV(CURLPROTO_RTSP),
NV(CURLPROTO_SCP),
NV(CURLPROTO_SFTP),
NV(CURLPROTO_SMB),
NV(CURLPROTO_SMBS),
NV(CURLPROTO_SMTP),
NV(CURLPROTO_SMTPS),
NV(CURLPROTO_TELNET),
NV(CURLPROTO_TFTP),
NVEND,
};
/* These options have non-zero default values. */
static const NameValue setopt_nv_CURLNONZERODEFAULTS[] = {
NV1(CURLOPT_SSL_VERIFYPEER, 1),
NV1(CURLOPT_SSL_VERIFYHOST, 1),
NV1(CURLOPT_SSL_ENABLE_NPN, 1),
NV1(CURLOPT_SSL_ENABLE_ALPN, 1),
NV1(CURLOPT_TCP_NODELAY, 1),
proxy: Support HTTPS proxy and SOCKS+HTTP(s) * HTTPS proxies: An HTTPS proxy receives all transactions over an SSL/TLS connection. Once a secure connection with the proxy is established, the user agent uses the proxy as usual, including sending CONNECT requests to instruct the proxy to establish a [usually secure] TCP tunnel with an origin server. HTTPS proxies protect nearly all aspects of user-proxy communications as opposed to HTTP proxies that receive all requests (including CONNECT requests) in vulnerable clear text. With HTTPS proxies, it is possible to have two concurrent _nested_ SSL/TLS sessions: the "outer" one between the user agent and the proxy and the "inner" one between the user agent and the origin server (through the proxy). This change adds supports for such nested sessions as well. A secure connection with a proxy requires its own set of the usual SSL options (their actual descriptions differ and need polishing, see TODO): --proxy-cacert FILE CA certificate to verify peer against --proxy-capath DIR CA directory to verify peer against --proxy-cert CERT[:PASSWD] Client certificate file and password --proxy-cert-type TYPE Certificate file type (DER/PEM/ENG) --proxy-ciphers LIST SSL ciphers to use --proxy-crlfile FILE Get a CRL list in PEM format from the file --proxy-insecure Allow connections to proxies with bad certs --proxy-key KEY Private key file name --proxy-key-type TYPE Private key file type (DER/PEM/ENG) --proxy-pass PASS Pass phrase for the private key --proxy-ssl-allow-beast Allow security flaw to improve interop --proxy-sslv2 Use SSLv2 --proxy-sslv3 Use SSLv3 --proxy-tlsv1 Use TLSv1 --proxy-tlsuser USER TLS username --proxy-tlspassword STRING TLS password --proxy-tlsauthtype STRING TLS authentication type (default SRP) All --proxy-foo options are independent from their --foo counterparts, except --proxy-crlfile which defaults to --crlfile and --proxy-capath which defaults to --capath. Curl now also supports %{proxy_ssl_verify_result} --write-out variable, similar to the existing %{ssl_verify_result} variable. Supported backends: OpenSSL, GnuTLS, and NSS. * A SOCKS proxy + HTTP/HTTPS proxy combination: If both --socks* and --proxy options are given, Curl first connects to the SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS proxy. TODO: Update documentation for the new APIs and --proxy-* options. Look for "Added in 7.XXX" marks.
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NV1(CURLOPT_PROXY_SSL_VERIFYPEER, 1),
NV1(CURLOPT_PROXY_SSL_VERIFYHOST, 1),
NV1(CURLOPT_SOCKS5_AUTH, 1),
NVEND
};
/* Format and add code; jump to nomem on malloc error */
#define ADD(args) do { \
ret = easysrc_add args; \
if(ret) \
goto nomem; \
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} WHILE_FALSE
#define ADDF(args) do { \
ret = easysrc_addf args; \
if(ret) \
goto nomem; \
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} WHILE_FALSE
#define NULL_CHECK(p) do { \
if(!p) { \
ret = CURLE_OUT_OF_MEMORY; \
goto nomem; \
} \
} WHILE_FALSE
#define DECL0(s) ADD((&easysrc_decl, s))
#define DECL1(f,a) ADDF((&easysrc_decl, f,a))
#define DATA0(s) ADD((&easysrc_data, s))
#define DATA1(f,a) ADDF((&easysrc_data, f,a))
#define DATA2(f,a,b) ADDF((&easysrc_data, f,a,b))
#define DATA3(f,a,b,c) ADDF((&easysrc_data, f,a,b,c))
#define CODE0(s) ADD((&easysrc_code, s))
#define CODE1(f,a) ADDF((&easysrc_code, f,a))
#define CODE2(f,a,b) ADDF((&easysrc_code, f,a,b))
#define CODE3(f,a,b,c) ADDF((&easysrc_code, f,a,b,c))
#define CLEAN0(s) ADD((&easysrc_clean, s))
#define CLEAN1(f,a) ADDF((&easysrc_clean, f,a))
#define REM0(s) ADD((&easysrc_toohard, s))
#define REM1(f,a) ADDF((&easysrc_toohard, f,a))
#define REM2(f,a,b) ADDF((&easysrc_toohard, f,a,b))
/* Escape string to C string syntax. Return NULL if out of memory.
* Is this correct for those wacky EBCDIC guys? */
static char *c_escape(const char *str, size_t len)
{
const char *s;
unsigned char c;
char *escaped, *e;
if(len == CURL_ZERO_TERMINATED)
len = strlen(str);
/* Check for possible overflow. */
if(len > (~(size_t) 0) / 4)
return NULL;
/* Allocate space based on worst-case */
escaped = malloc(4 * len + 1);
if(!escaped)
return NULL;
e = escaped;
for(s = str; (c = *s) != '\0'; s++) {
if(c == '\n') {
strcpy(e, "\\n");
e += 2;
}
else if(c == '\r') {
strcpy(e, "\\r");
e += 2;
}
else if(c == '\t') {
strcpy(e, "\\t");
e += 2;
}
else if(c == '\\') {
strcpy(e, "\\\\");
e += 2;
}
else if(c == '"') {
strcpy(e, "\\\"");
e += 2;
}
else if(! isprint(c)) {
msnprintf(e, 5, "\\%03o", (unsigned)c);
e += 4;
}
else
*e++ = c;
}
*e = '\0';
return escaped;
}
/* setopt wrapper for enum types */
CURLcode tool_setopt_enum(CURL *curl, struct GlobalConfig *config,
const char *name, CURLoption tag,
const NameValue *nvlist, long lval)
{
CURLcode ret = CURLE_OK;
bool skip = FALSE;
ret = curl_easy_setopt(curl, tag, lval);
if(!lval)
skip = TRUE;
if(config->libcurl && !skip && !ret) {
/* we only use this for real if --libcurl was used */
const NameValue *nv = NULL;
for(nv = nvlist; nv->name; nv++) {
if(nv->value == lval) break; /* found it */
}
if(! nv->name) {
/* If no definition was found, output an explicit value.
* This could happen if new values are defined and used
* but the NameValue list is not updated. */
CODE2("curl_easy_setopt(hnd, %s, %ldL);", name, lval);
}
else {
CODE2("curl_easy_setopt(hnd, %s, (long)%s);", name, nv->name);
}
}
nomem:
return ret;
}
/* setopt wrapper for flags */
CURLcode tool_setopt_flags(CURL *curl, struct GlobalConfig *config,
const char *name, CURLoption tag,
const NameValue *nvlist, long lval)
{
CURLcode ret = CURLE_OK;
bool skip = FALSE;
ret = curl_easy_setopt(curl, tag, lval);
if(!lval)
skip = TRUE;
if(config->libcurl && !skip && !ret) {
/* we only use this for real if --libcurl was used */
char preamble[80]; /* should accommodate any symbol name */
long rest = lval; /* bits not handled yet */
const NameValue *nv = NULL;
msnprintf(preamble, sizeof(preamble),
"curl_easy_setopt(hnd, %s, ", name);
for(nv = nvlist; nv->name; nv++) {
if((nv->value & ~ rest) == 0) {
/* all value flags contained in rest */
rest &= ~ nv->value; /* remove bits handled here */
CODE3("%s(long)%s%s",
preamble, nv->name, rest ? " |" : ");");
if(!rest)
break; /* handled them all */
/* replace with all spaces for continuation line */
msnprintf(preamble, sizeof(preamble), "%*s", strlen(preamble), "");
}
}
/* If any bits have no definition, output an explicit value.
* This could happen if new bits are defined and used
* but the NameValue list is not updated. */
if(rest)
CODE2("%s%ldL);", preamble, rest);
}
nomem:
return ret;
}
/* setopt wrapper for bitmasks */
CURLcode tool_setopt_bitmask(CURL *curl, struct GlobalConfig *config,
const char *name, CURLoption tag,
const NameValueUnsigned *nvlist,
long lval)
{
CURLcode ret = CURLE_OK;
bool skip = FALSE;
ret = curl_easy_setopt(curl, tag, lval);
if(!lval)
skip = TRUE;
if(config->libcurl && !skip && !ret) {
/* we only use this for real if --libcurl was used */
char preamble[80];
unsigned long rest = (unsigned long)lval;
const NameValueUnsigned *nv = NULL;
msnprintf(preamble, sizeof(preamble),
"curl_easy_setopt(hnd, %s, ", name);
for(nv = nvlist; nv->name; nv++) {
if((nv->value & ~ rest) == 0) {
/* all value flags contained in rest */
rest &= ~ nv->value; /* remove bits handled here */
CODE3("%s(long)%s%s",
preamble, nv->name, rest ? " |" : ");");
if(!rest)
break; /* handled them all */
/* replace with all spaces for continuation line */
msnprintf(preamble, sizeof(preamble), "%*s", strlen(preamble), "");
}
}
/* If any bits have no definition, output an explicit value.
* This could happen if new bits are defined and used
* but the NameValue list is not updated. */
if(rest)
CODE2("%s%luUL);", preamble, rest);
}
nomem:
return ret;
}
/* Generate code for a struct curl_slist. */
static CURLcode libcurl_generate_slist(struct curl_slist *slist, int *slistno)
{
CURLcode ret = CURLE_OK;
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char *escaped = NULL;
/* May need several slist variables, so invent name */
*slistno = ++easysrc_slist_count;
DECL1("struct curl_slist *slist%d;", *slistno);
DATA1("slist%d = NULL;", *slistno);
CLEAN1("curl_slist_free_all(slist%d);", *slistno);
CLEAN1("slist%d = NULL;", *slistno);
for(; slist; slist = slist->next) {
Curl_safefree(escaped);
escaped = c_escape(slist->data, CURL_ZERO_TERMINATED);
if(!escaped)
return CURLE_OUT_OF_MEMORY;
DATA3("slist%d = curl_slist_append(slist%d, \"%s\");",
*slistno, *slistno, escaped);
}
nomem:
Curl_safefree(escaped);
return ret;
}
static CURLcode libcurl_generate_mime(CURL *curl,
struct GlobalConfig *config,
tool_mime *toolmime,
int *mimeno); /* Forward. */
/* Wrapper to generate source code for a mime part. */
static CURLcode libcurl_generate_mime_part(CURL *curl,
struct GlobalConfig *config,
tool_mime *part,
int mimeno)
{
CURLcode ret = CURLE_OK;
int submimeno = 0;
char *escaped = NULL;
const char *data = NULL;
const char *filename = part->filename;
/* Parts are linked in reverse order. */
if(part->prev) {
ret = libcurl_generate_mime_part(curl, config, part->prev, mimeno);
if(ret)
return ret;
}
/* Create the part. */
CODE2("part%d = curl_mime_addpart(mime%d);", mimeno, mimeno);
switch(part->kind) {
case TOOLMIME_PARTS:
ret = libcurl_generate_mime(curl, config, part, &submimeno);
if(!ret) {
CODE2("curl_mime_subparts(part%d, mime%d);", mimeno, submimeno);
CODE1("mime%d = NULL;", submimeno); /* Avoid freeing in CLEAN. */
}
break;
case TOOLMIME_DATA:
#ifdef CURL_DOES_CONVERSIONS
/* Data will be set in ASCII, thus issue a comment with clear text. */
escaped = c_escape(part->data, CURL_ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE1("/* \"%s\" */", escaped);
/* Our data is always textual: convert it to ASCII. */
{
size_t size = strlen(part->data);
char *cp = malloc(size + 1);
NULL_CHECK(cp);
memcpy(cp, part->data, size + 1);
ret = convert_to_network(cp, size);
data = cp;
}
#else
data = part->data;
#endif
if(!ret) {
Curl_safefree(escaped);
escaped = c_escape(data, CURL_ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_mime_data(part%d, \"%s\", CURL_ZERO_TERMINATED);",
mimeno, escaped);
}
break;
case TOOLMIME_FILE:
case TOOLMIME_FILEDATA:
escaped = c_escape(part->data, CURL_ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_mime_filedata(part%d, \"%s\");", mimeno, escaped);
if(part->kind == TOOLMIME_FILEDATA && !filename) {
CODE1("curl_mime_filename(part%d, NULL);", mimeno);
}
break;
case TOOLMIME_STDIN:
if(!filename)
filename = "-";
/* FALLTHROUGH */
case TOOLMIME_STDINDATA:
/* Can only be reading stdin in the current context. */
CODE1("curl_mime_data_cb(part%d, -1, (curl_read_callback) fread, \\",
mimeno);
CODE0(" (curl_seek_callback) fseek, NULL, stdin);");
break;
default:
/* Other cases not possible in this context. */
break;
}
if(!ret && part->encoder) {
Curl_safefree(escaped);
escaped = c_escape(part->encoder, CURL_ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_mime_encoder(part%d, \"%s\");", mimeno, escaped);
}
if(!ret && filename) {
Curl_safefree(escaped);
escaped = c_escape(filename, CURL_ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_mime_filename(part%d, \"%s\");", mimeno, escaped);
}
if(!ret && part->name) {
Curl_safefree(escaped);
escaped = c_escape(part->name, CURL_ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_mime_name(part%d, \"%s\");", mimeno, escaped);
}
if(!ret && part->type) {
Curl_safefree(escaped);
escaped = c_escape(part->type, CURL_ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_mime_type(part%d, \"%s\");", mimeno, escaped);
}
if(!ret && part->headers) {
int slistno;
ret = libcurl_generate_slist(part->headers, &slistno);
if(!ret) {
CODE2("curl_mime_headers(part%d, slist%d, 1);", mimeno, slistno);
CODE1("slist%d = NULL;", slistno); /* Prevent CLEANing. */
}
}
nomem:
#ifdef CURL_DOES_CONVERSIONS
if(data)
free((char *) data);
#endif
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Curl_safefree(escaped);
return ret;
}
/* Wrapper to generate source code for a mime structure. */
static CURLcode libcurl_generate_mime(CURL *curl,
struct GlobalConfig *config,
tool_mime *toolmime,
int *mimeno)
{
CURLcode ret = CURLE_OK;
/* May need several mime variables, so invent name. */
*mimeno = ++easysrc_mime_count;
DECL1("curl_mime *mime%d;", *mimeno);
DATA1("mime%d = NULL;", *mimeno);
CODE1("mime%d = curl_mime_init(hnd);", *mimeno);
CLEAN1("curl_mime_free(mime%d);", *mimeno);
CLEAN1("mime%d = NULL;", *mimeno);
if(toolmime->subparts) {
DECL1("curl_mimepart *part%d;", *mimeno);
ret = libcurl_generate_mime_part(curl, config,
toolmime->subparts, *mimeno);
}
nomem:
return ret;
}
/* setopt wrapper for CURLOPT_MIMEPOST */
CURLcode tool_setopt_mimepost(CURL *curl, struct GlobalConfig *config,
const char *name, CURLoption tag,
curl_mime *mimepost)
{
CURLcode ret = curl_easy_setopt(curl, tag, mimepost);
int mimeno = 0;
if(!ret && config->libcurl) {
ret = libcurl_generate_mime(curl, config,
config->current->mimeroot, &mimeno);
if(!ret)
CODE2("curl_easy_setopt(hnd, %s, mime%d);", name, mimeno);
}
nomem:
return ret;
}
/* setopt wrapper for curl_slist options */
CURLcode tool_setopt_slist(CURL *curl, struct GlobalConfig *config,
const char *name, CURLoption tag,
struct curl_slist *list)
{
CURLcode ret = CURLE_OK;
ret = curl_easy_setopt(curl, tag, list);
if(config->libcurl && list && !ret) {
int i;
ret = libcurl_generate_slist(list, &i);
if(!ret)
CODE2("curl_easy_setopt(hnd, %s, slist%d);", name, i);
}
nomem:
return ret;
}
/* generic setopt wrapper for all other options.
* Some type information is encoded in the tag value. */
CURLcode tool_setopt(CURL *curl, bool str, struct GlobalConfig *config,
const char *name, CURLoption tag, ...)
{
va_list arg;
char buf[256];
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const char *value = NULL;
bool remark = FALSE;
bool skip = FALSE;
bool escape = FALSE;
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char *escaped = NULL;
CURLcode ret = CURLE_OK;
va_start(arg, tag);
if(tag < CURLOPTTYPE_OBJECTPOINT) {
/* Value is expected to be a long */
long lval = va_arg(arg, long);
long defval = 0L;
const NameValue *nv = NULL;
for(nv = setopt_nv_CURLNONZERODEFAULTS; nv->name; nv++) {
if(!strcmp(name, nv->name)) {
defval = nv->value;
break; /* found it */
}
}
msnprintf(buf, sizeof(buf), "%ldL", lval);
value = buf;
ret = curl_easy_setopt(curl, tag, lval);
if(lval == defval)
skip = TRUE;
}
else if(tag < CURLOPTTYPE_OFF_T) {
/* Value is some sort of object pointer */
void *pval = va_arg(arg, void *);
/* function pointers are never printable */
if(tag >= CURLOPTTYPE_FUNCTIONPOINT) {
if(pval) {
value = "functionpointer";
remark = TRUE;
}
else
skip = TRUE;
}
else if(pval && str) {
value = (char *)pval;
escape = TRUE;
}
else if(pval) {
value = "objectpointer";
remark = TRUE;
}
else
skip = TRUE;
ret = curl_easy_setopt(curl, tag, pval);
}
else {
/* Value is expected to be curl_off_t */
curl_off_t oval = va_arg(arg, curl_off_t);
msnprintf(buf, sizeof(buf),
"(curl_off_t)%" CURL_FORMAT_CURL_OFF_T, oval);
value = buf;
ret = curl_easy_setopt(curl, tag, oval);
if(!oval)
skip = TRUE;
}
va_end(arg);
if(config->libcurl && !skip && !ret) {
/* we only use this for real if --libcurl was used */
if(remark)
REM2("%s set to a %s", name, value);
else {
if(escape) {
escaped = c_escape(value, CURL_ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_easy_setopt(hnd, %s, \"%s\");", name, escaped);
}
else
CODE2("curl_easy_setopt(hnd, %s, %s);", name, value);
}
}
nomem:
2012-03-17 15:55:15 -04:00
Curl_safefree(escaped);
return ret;
}
#endif /* CURL_DISABLE_LIBCURL_OPTION */