--- parser3/src/main/pa_common.C 2003/09/19 09:58:26 1.155 +++ parser3/src/main/pa_common.C 2004/04/06 10:08:15 1.185 @@ -1,11 +1,11 @@ /** @file Parser: commonly functions. - Copyright(c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) + Copyright(c) 2001-2004 ArtLebedev Group (http://www.artlebedev.com) Author: Alexandr Petrosian (http://paf.design.ru) */ -static const char* IDENT_COMMON_C="$Date: 2003/09/19 09:58:26 $"; +static const char * const IDENT_COMMON_C="$Date: 2004/04/06 10:08:15 $"; #include "pa_common.h" #include "pa_exception.h" @@ -64,61 +64,9 @@ int PASCAL closesocket(SOCKET); # endif #endif -// locking constants -//#define PA_DEBUG_NO_LOCKING - -#ifdef PA_DEBUG_NO_LOCKING - -#ifdef HAVE_FLOCK - -static int lock_shared_blocking(int fd) { return flock(fd, LOCK_SH); } -static int lock_exclusive_blocking(int fd) { return flock(fd, LOCK_EX); } -static int lock_exclusive_nonblocking(int fd) { return flock(fd, LOCK_EX || LOCK_NB); } -static int unlock(int fd) { return flock(fd, LOCK_UN); } - -#else -#ifdef HAVE__LOCKING - -#define FLOCK(operation) lseek(fd, 0, SEEK_SET); return _locking(fd, operation, 1) -static int lock_shared_blocking(int fd) { FLOCK(_LK_LOCK); } -static int lock_exclusive_blocking(int fd) { FLOCK(_LK_LOCK); } -static int lock_exclusive_nonblocking(int fd) { FLOCK(_LK_NBLCK); } -static int unlock(int fd) { FLOCK(_LK_UNLCK); } - -#else -#ifdef HAVE_FCNTL - -#define FLOCK(cmd, arg) struct flock ls={arg, SEEK_SET}; return fcntl(fd, cmd, &ls) -static int lock_shared_blocking(int fd) { FLOCK(F_SETLKW, F_RDLCK); } -static int lock_exclusive_blocking(int fd) { FLOCK(F_SETLKW, F_WRLCK); } -static int lock_exclusive_nonblocking(int fd) { FLOCK(F_SETLK, F_RDLCK); } -static int unlock(int fd) { FLOCK(F_SETLK, F_UNLCK); } - -#else -#ifdef HAVE_LOCKF - -#define FLOCK(fd, operation) lseek(fd, 0, SEEK_SET); return lockf(fd, operation, 1) -static int lock_shared_blocking(int fd) { FLOCK(F_LOCK); } // on intel solaris man doesn't have doc on shared blocking -static int lock_exclusive_blocking(int fd) { FLOCK(F_LOCK); } -static int lock_exclusive_nonblocking(int fd) { FLOCK(F_TLOCK); } -static int unlock(int fd) { FLOCK(F_TLOCK); } - -#else - -#error unable to find file locking func - -#endif -#endif -#endif -#endif - -#else -static int lock_shared_blocking(int fd) { return 0; } -static int lock_exclusive_blocking(int fd) { return 0; } -static int lock_exclusive_nonblocking(int fd) { return 0; } -static int unlock(int fd) { return 0; } - -#endif +# ifndef INADDR_NONE +# define INADDR_NONE ((ulong) -1) +# endif // defines for globals @@ -128,23 +76,18 @@ static int unlock(int fd) { return 0; } const String file_status_name(FILE_STATUS_NAME); -// defines for statics +// defines #define HTTP_METHOD_NAME "method" +#define HTTP_FORM_NAME "form" +#define HTTP_BODY_NAME "body" #define HTTP_TIMEOUT_NAME "timeout" #define HTTP_HEADERS_NAME "headers" #define HTTP_ANY_STATUS_NAME "any-status" #define HTTP_CHARSET_NAME "charset" #define HTTP_TABLES_NAME "tables" - -// statics - -static const String http_method_name(HTTP_METHOD_NAME); -static const String http_timeout_name(HTTP_TIMEOUT_NAME); -static const String http_headers_name(HTTP_HEADERS_NAME); -static const String http_any_status_name(HTTP_ANY_STATUS_NAME); -static const String http_charset_name(HTTP_CHARSET_NAME); -static const String http_tables_name(HTTP_TABLES_NAME); +#define HTTP_USER "user" +#define HTTP_PASSWORD "password" // defines @@ -187,8 +130,8 @@ char* file_read_text(Request_charsets& c return file.success?file.str:0; } -#ifdef PA_HTTP //http request stuff +#ifdef PA_HTTP #undef CRLF #define CRLF "\r\n" @@ -198,30 +141,42 @@ static bool set_addr(struct sockaddr_in addr->sin_family=AF_INET; addr->sin_port=htons(port); if(host) { - if(struct hostent *hostIP=gethostbyname(host)) - memcpy(&addr->sin_addr, hostIP->h_addr, hostIP->h_length); - else - return false; + ulong packed_ip=inet_addr(host); + if(packed_ip!=INADDR_NONE) + memcpy(&addr->sin_addr, &packed_ip, sizeof(packed_ip)); + else { + struct hostent *hostIP=gethostbyname(host); + if(hostIP) + memcpy(&addr->sin_addr, hostIP->h_addr, hostIP->h_length); + else + return false; + } } else addr->sin_addr.s_addr=INADDR_ANY; return true; } -static int http_read_response(String& response, int sock, bool fail_on_status_ne_200){ +static int http_read_response(char*& response, size_t& response_size, int sock, bool fail_on_status_ne_200){ + response=(char*)pa_malloc_atomic(1/*terminator*/); // setting memory block type + response[(response_size=0)]=0; int result=0; - size_t EOLat=0; + char* EOLat=0; while(true) { - char *buf=new(PointerFreeGC) char[MAX_STRING]; - ssize_t size=recv(sock, buf, MAX_STRING, 0); - if(size<=0) + char buf[MAX_STRING*10]; + ssize_t received_size=recv(sock, buf, sizeof(buf), 0); + if(received_size<=0) break; - response.append_strdup(buf, size, String::L_TAINTED); - if(!result && (EOLat=response.pos(CRLF, 2))!=STRING_NOT_FOUND) { // checking status in first response - const String& status_line=response.mid(0, (size_t)EOLat); + response=(char*)pa_realloc(response, response_size+received_size+1/*terminator*/); + memcpy(response+response_size, buf, received_size); + response_size+=received_size; + response[response_size]=0; + + if(!result && (EOLat=strstr(response, CRLF))) { // checking status in first response + const String status_line(pa_strdup(response, EOLat-response)); ArrayString astatus; size_t pos_after=0; status_line.split(astatus, pos_after, " "); - const String& status_code=*astatus.get(1); + const String& status_code=*astatus.get(astatus.count()>1?1:0); result=status_code.as_int(); if(fail_on_status_ne_200 && result!=200) @@ -235,7 +190,7 @@ static int http_read_response(String& re else throw Exception("http.response", 0, - "bad response from host - no status found (size=%lu)", response.length()); + "bad response from host - no status found (size=%u)", response_size); } /* ********************** request *************************** */ @@ -251,10 +206,14 @@ static void timeout_handler(int sig){ } #endif -static int http_request(String& response, +static int http_request(char*& response, size_t& response_size, const char* host, int port, const char* request, - int timeout, + int +#ifdef PA_USE_ALARM + timeout +#endif + , bool fail_on_status_ne_200) { if(!host) throw Exception("http.host", @@ -302,7 +261,7 @@ static int http_request(String& response 0, "error sending request: %s (%d)", strerror(errno), errno); - result=http_read_response(response, sock, fail_on_status_ne_200); + result=http_read_response(response, response_size, sock, fail_on_status_ne_200); closesocket(sock); #ifdef PA_USE_ALARM alarm(0); @@ -341,7 +300,7 @@ static void http_pass_header(HashStringV static Charset* detect_charset(Charset& source_charset, const String& content_type_value) { - const StringBody CONTENT_TYPE_VALUE= + const String::Body CONTENT_TYPE_VALUE= content_type_value.change_case(source_charset, String::CC_UPPER); // content-type: xxx/xxx; source_charset=WE-NEED-THIS // content-type: xxx/xxx; source_charset="WE-NEED-THIS" @@ -363,7 +322,7 @@ static Charset* detect_charset(Charset& if(delim_pos!=STRING_NOT_FOUND) charset_end=delim_pos; } - const StringBody CHARSET_NAME_BODY= + const String::Body CHARSET_NAME_BODY= CONTENT_TYPE_VALUE.mid(charset_begin, charset_end); return &charsets.get(CHARSET_NAME_BODY); @@ -372,7 +331,62 @@ static Charset* detect_charset(Charset& return 0; } +static const String* basic_authorization_field(const char* user, const char* pass) { + if(!user&& !pass) + return 0; + + String combined; + if(user) + combined<key, *row->get(0), info->result); +} +static void form_value2string( + HashStringValue::key_type key, + HashStringValue::value_type value, + String* result) +{ + if(const String* svalue=value->get_string()) + form_string_value2string(key, *svalue, *result); + else if(Table* tvalue=value->get_table()) { + Form_table_value2string_info info(key, *result); + tvalue->for_each(form_table_value2string, &info); + } else + throw Exception(0, + new String(key, String::L_TAINTED), + "is %s, "HTTP_FORM_NAME" option value must either string or table", value->type()); +} +static const char* form2string(HashStringValue& form) { + String string; + form.for_each(form_value2string, &string); + return string.cstr(String::L_UNSPECIFIED); +} #ifndef DOXYGEN struct File_read_http_result { char *str; size_t length; @@ -382,38 +396,59 @@ struct File_read_http_result { /// @todo build .cookies field. use ^file.tables.SET-COOKIES.menu{ for now static File_read_http_result file_read_http(Request_charsets& charsets, const String& file_spec, - HashStringValue *options=0) { + bool as_text, + HashStringValue *options=0) { File_read_http_result result; char host[MAX_STRING]; const char* uri; int port; - const char* method=0; + const char* method="GET"; bool method_is_get; + HashStringValue* form=0; + const char* body_cstr=0; int timeout=2; bool fail_on_status_ne_200=true; Value* vheaders=0; Charset *asked_remote_charset=0; + const char* user_cstr=0; + const char* password_cstr=0; if(options) { int valid_options=0; - if(Value* vmethod=options->get(http_method_name)) { + if(Value* vmethod=options->get(HTTP_METHOD_NAME)) { valid_options++; method=vmethod->as_string().cstr(); } - if(Value* vtimeout=options->get(http_timeout_name)) { + if(Value* vform=options->get(HTTP_FORM_NAME)) { + valid_options++; + form=vform->get_hash(); + } + if(Value* vbody=options->get(HTTP_BODY_NAME)) { + valid_options++; + body_cstr=vbody->as_string().cstr(String::L_UNSPECIFIED); + } + if(Value* vtimeout=options->get(HTTP_TIMEOUT_NAME)) { valid_options++; timeout=vtimeout->as_int(); - } - if(vheaders=options->get(http_headers_name)) { + } + if((vheaders=options->get(HTTP_HEADERS_NAME))) { valid_options++; - } - if(Value* vany_status=options->get(http_any_status_name)) { + } + if(Value* vany_status=options->get(HTTP_ANY_STATUS_NAME)) { valid_options++; fail_on_status_ne_200=!vany_status->as_bool(); - } - if(Value* vcharset_name=options->get(http_charset_name)) { + } + if(Value* vcharset_name=options->get(HTTP_CHARSET_NAME)) { valid_options++; asked_remote_charset=&::charsets.get(vcharset_name->as_string(). change_case(charsets.source(), String::CC_UPPER)); + } + if(Value* vuser=options->get(HTTP_USER)) { + valid_options++; + user_cstr=vuser->as_string().cstr(); + } + if(Value* vpassword=options->get(HTTP_PASSWORD)) { + valid_options++; + password_cstr=vpassword->as_string().cstr(); } if(valid_options!=options->count()) @@ -424,12 +459,18 @@ static File_read_http_result file_read_h if(!asked_remote_charset) // defaulting to $request:charset asked_remote_charset=&charsets.source(); + method_is_get=strcmp(method, "GET")==0; + if(method_is_get && body_cstr) + throw Exception("parser.runtime", + 0, + "you can not use $."HTTP_BODY_NAME" option with method GET"); + //preparing request String& connect_string=*new String; // not in ^sql{... L_SQL ...} spirit, but closer to ^file::load one connect_string.append(file_spec, String::L_URI); // tainted pieces -> URI pieces - const char* request_cstr; + String request_head_and_body; { // influence URLencoding of tainted pieces to String::L_URI lang Temp_client_charset temp(charsets, *asked_remote_charset); @@ -450,19 +491,33 @@ static File_read_http_result file_read_h char* error_pos=0; port=port_cstr?strtol(port_cstr, &error_pos, 0):80; + if(strchr(uri, '?') && form) + throw Exception("parser.runtime", + 0, + "use either uri with ?params or $."HTTP_FORM_NAME" option"); - //making request - String request; - if(method) - request<is_string()) { // allow empty if(HashStringValue *headers=vheaders->get_hash()) { - Http_pass_header_info info={&charsets, &request}; + Http_pass_header_info info={&charsets, &head, false}; headers->for_each(http_pass_header, &info); user_agent_specified=info.user_agent_specified; } else @@ -471,38 +526,60 @@ static File_read_http_result file_read_h "headers param must be hash"); }; if(!user_agent_specified) // defaulting - request << "user-agent: " DEFAULT_USER_AGENT CRLF; - request << CRLF; + head << "user-agent: " DEFAULT_USER_AGENT CRLF; + + if(body_cstr) { + // recode those pieces which are not in String::L_URI lang + // [those violating HTTP standard, but widly used] + body_cstr=Charset::transcode( + String::C(body_cstr, strlen(body_cstr)), + charsets.source(), + *asked_remote_charset); - request_cstr=request.cstr(String::L_UNSPECIFIED); + head << "content-length: " << format(strlen(body_cstr), "%u") << CRLF; + } + + const char* head_cstr=head.cstr(String::L_UNSPECIFIED); + + // recode those pieces which are not in String::L_URI lang + // [those violating HTTP standard, but widly used] + head_cstr=Charset::transcode( + String::C(head_cstr, strlen(head_cstr)), + charsets.source(), + *asked_remote_charset); + + // head + end of header + request_head_and_body << head_cstr << CRLF; + // body + if(body_cstr) + request_head_and_body << body_cstr; } - // recode those pieces which are not in String::L_URI lang - // [those violating HTTP standard, but widly used] - request_cstr=Charset::transcode( - String::C(request_cstr, strlen(request_cstr)), - charsets.source(), - *asked_remote_charset); //sending request - String response; - int status_code=http_request(response, - host, port, request_cstr, + char* response; + size_t response_size; + int status_code=http_request(response, response_size, + host, port, request_head_and_body.cstr(), timeout, fail_on_status_ne_200); //processing results - size_t pos=response.pos(CRLF CRLF, 4); - if(pos==STRING_NOT_FOUND || pos<1) { + char* raw_body; size_t raw_body_size; + char* headers_end_at=strstr(response, CRLF CRLF /*change '4' below along!*/); + if(headers_end_at) { + raw_body=headers_end_at+4; + raw_body_size=response_size-(raw_body-response); + } else throw Exception("http.response", &connect_string, "bad response from host - no headers found"); - } - const String& header_block=response.mid(0, pos); - const String& raw_body=response.mid(pos+4, response.length()); + + *headers_end_at=0; + const String header_block(response, headers_end_at-response, true); ArrayString aheaders; result.headers=new HashStringValue; VHash* vtables=new VHash; - result.headers->put(http_tables_name, vtables); + result.headers->put(HTTP_TABLES_NAME, vtables); HashStringValue& tables=vtables->hash(); size_t pos_after=0; @@ -513,12 +590,12 @@ static File_read_http_result file_read_h Charset* real_remote_charset=0; // undetected, yet for(size_t i=1; i(real_body.str); // hacking a little result.length=real_body.length; @@ -575,7 +651,7 @@ struct File_read_action_info { static void file_read_action( struct stat& finfo, int f, - const String& file_spec, const char* fname, bool as_text, + const String& file_spec, const char* /*fname*/, bool as_text, void *context) { File_read_action_info& info=*static_cast(context); if(size_t to_read_size=(size_t)finfo.st_size) { @@ -585,7 +661,7 @@ static void file_read_action( if(ssize_t(*info.data_size)<0 || *info.data_size>to_read_size) throw Exception(0, &file_spec, - "read failed: actually read %lu bytes count not in [0..%lu] valid range", + "read failed: actually read %u bytes count not in [0..%u] valid range", *info.data_size, to_read_size); } else { // empty file if(as_text) { @@ -600,17 +676,22 @@ static void file_read_action( File_read_result file_read(Request_charsets& charsets, const String& file_spec, bool as_text, HashStringValue *params, bool fail_on_read_problem) { - File_read_result result={false}; + File_read_result result={false, 0, 0, 0}; #ifdef PA_HTTP if(file_spec.starts_with("http://")) { // fail on read problem - File_read_http_result http=file_read_http(charsets, file_spec, params); + File_read_http_result http=file_read_http(charsets, file_spec, as_text, params); result.success=true; result.str=http.str; result.length=http.length; result.headers=http.headers; } else { #endif + if(params && params->count()) + throw Exception("parser.runtime", + 0, + "invalid option passed"); + File_read_action_info info={&result.str, &result.length}; result.success=file_read_action_under_lock(file_spec, "read", file_read_action, &info, @@ -623,14 +704,12 @@ File_read_result file_read(Request_chars // UTF-8 signature: EF BB BF if(result.length>=3) { char *in=(char *)result.str; - if(strncmp(in, "\xEB\xBB\xBF", 3)==0) { + if(strncmp(in, "\xEF\xBB\xBF", 3)==0) { result.str=in+3; result.length-=3;// skip prefix } } fix_line_breaks((char *)(result.str), result.length); - // note: after fixing - ((char*&)(result.str))[result.length]=0; } return result; @@ -671,7 +750,7 @@ bool file_read_action_under_lock(const S // later: it seems, even this does not help sometimes if((f=open(fname, O_RDONLY|(as_text?_O_TEXT:_O_BINARY)))>=0) { try { - if(lock_shared_blocking(f)!=0) + if(pa_lock_shared_blocking(f)!=0) throw Exception("file.lock", &file_spec, "shared lock failed: %s (%d), actual filename '%s'", @@ -690,13 +769,13 @@ bool file_read_action_under_lock(const S action(finfo, f, file_spec, fname, as_text, context); } catch(...) { - unlock(f);close(f); + pa_unlock(f);close(f); if(fail_on_read_problem) rethrow; return false; } - unlock(f);close(f); + pa_unlock(f);close(f); return true; } else { if(fail_on_read_problem) @@ -733,7 +812,7 @@ bool file_write_action_under_lock( O_CREAT|O_RDWR |(as_text?_O_TEXT:_O_BINARY) |(do_append?O_APPEND:PA_O_TRUNC), 0664))>=0) { - if((do_block?lock_exclusive_blocking(f):lock_exclusive_nonblocking(f))!=0) { + if((do_block?pa_lock_exclusive_blocking(f):pa_lock_exclusive_nonblocking(f))!=0) { Exception e("file.lock", &file_spec, "shared lock failed: %s (%d), actual filename '%s'", @@ -751,7 +830,7 @@ bool file_write_action_under_lock( if(!do_append) ftruncate(f, lseek(f, 0, SEEK_CUR)); // one can not use O_TRUNC, read lower #endif - unlock(f);close(f); + pa_unlock(f);close(f); rethrow; } @@ -759,7 +838,7 @@ bool file_write_action_under_lock( if(!do_append) ftruncate(f, lseek(f, 0, SEEK_CUR)); // O_TRUNC truncates even exclusevely write-locked file [thanks to Igor Milyakov for discovering] #endif - unlock(f);close(f); + pa_unlock(f);close(f); return true; } else throw Exception(errno==EACCES?"file.access":0, @@ -805,10 +884,10 @@ static void rmdir(const String& file_spe rmdir(file_spec.mid(0, pos_after-1/* / */).cstr(String::L_FILE_SPEC)); } -bool file_delete(const String& file_spec, bool fail_on_read_problem) { +bool file_delete(const String& file_spec, bool fail_on_problem) { const char* fname=file_spec.cstr(String::L_FILE_SPEC); if(unlink(fname)!=0) - if(fail_on_read_problem) + if(fail_on_problem) throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0, &file_spec, "unlink failed: %s (%d), actual filename '%s'", @@ -1099,6 +1178,11 @@ int __vsnprintf(char* b, size_t s, const // note: on win32& maybe somewhere else // vsnprintf do not writes terminating 0 in 'buffer full' case, reducing --s; + + // clients do not check for negative 's', feature: ignore such prints + if((ssize_t)s<0) + return 0; + #if _MSC_VER /* win32: @@ -1124,7 +1208,7 @@ int __vsnprintf(char* b, size_t s, const if(r<0) r=0; - else if(r>s) + else if((size_t)r>s) r=s; #endif b[r]=0; @@ -1139,18 +1223,178 @@ int __snprintf(char* b, size_t s, const return r; } -int pa_sleep(unsigned long secs, unsigned long usecs) { - for (; usecs >= 1000000; ++secs, usecs -= 1000000); +/* mime64 functions are from libgmime[http://spruce.sourceforge.net/gmime/] lib */ +/* + * Authors: Michael Zucchi + * Jeffrey Stedfast + * + * Copyright 2000 Helix Code, Inc. (www.helixcode.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA. + * + */ +static char *base64_alphabet = + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + +/** + * g_mime_utils_base64_encode_step: + * @in: input stream + * @inlen: length of the input + * @out: output string + * @state: holds the number of bits that are stored in @save + * @save: leftover bits that have not yet been encoded + * + * Base64 encodes a chunk of data. Performs an 'encode step', only + * encodes blocks of 3 characters to the output at a time, saves + * left-over state in state and save (initialise to 0 on first + * invocation). + * + * Returns the number of bytes encoded. + **/ +static size_t +g_mime_utils_base64_encode_step (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save) +{ + const register unsigned char *inptr; + register unsigned char *outptr; + + if (inlen <= 0) + return 0; + + inptr = in; + outptr = out; + + if (inlen + ((unsigned char *)save)[0] > 2) { + const unsigned char *inend = in + inlen - 2; + register int c1 = 0, c2 = 0, c3 = 0; + register int already; + + already = *state; + + switch (((char *)save)[0]) { + case 1: c1 = ((unsigned char *)save)[1]; goto skip1; + case 2: c1 = ((unsigned char *)save)[1]; + c2 = ((unsigned char *)save)[2]; goto skip2; + } + + /* yes, we jump into the loop, no i'm not going to change it, its beautiful! */ + while (inptr < inend) { + c1 = *inptr++; + skip1: + c2 = *inptr++; + skip2: + c3 = *inptr++; + *outptr++ = base64_alphabet [c1 >> 2]; + *outptr++ = base64_alphabet [(c2 >> 4) | ((c1 & 0x3) << 4)]; + *outptr++ = base64_alphabet [((c2 & 0x0f) << 2) | (c3 >> 6)]; + *outptr++ = base64_alphabet [c3 & 0x3f]; + /* this is a bit ugly ... */ + if ((++already) >= 19) { + *outptr++ = '\n'; + already = 0; + } + } + + ((unsigned char *)save)[0] = 0; + inlen = 2 - (inptr - inend); + *state = already; + } + + //d(printf ("state = %d, inlen = %d\n", (int)((char *)save)[0], inlen)); + + if (inlen > 0) { + register char *saveout; + + /* points to the slot for the next char to save */ + saveout = & (((char *)save)[1]) + ((char *)save)[0]; + + /* inlen can only be 0 1 or 2 */ + switch (inlen) { + case 2: *saveout++ = *inptr++; + case 1: *saveout++ = *inptr++; + } + ((char *)save)[0] += inlen; + } + + /*d(printf ("mode = %d\nc1 = %c\nc2 = %c\n", + (int)((char *)save)[0], + (int)((char *)save)[1], + (int)((char *)save)[2]));*/ + + return (outptr - out); +} -#ifdef WIN32 - Sleep(secs * 1000 + usecs / 1000); - return 0; -#else - struct timeval t; - t.tv_sec = secs; - t.tv_usec = usecs; - return (select(0, NULL, NULL, NULL, &t) == -1 ? errno : 0); -#endif +/** + * g_mime_utils_base64_encode_close: + * @in: input stream + * @inlen: length of the input + * @out: output string + * @state: holds the number of bits that are stored in @save + * @save: leftover bits that have not yet been encoded + * + * Base64 encodes the input stream to the output stream. Call this + * when finished encoding data with g_mime_utils_base64_encode_step to + * flush off the last little bit. + * + * Returns the number of bytes encoded. + **/ +static size_t +g_mime_utils_base64_encode_close (const unsigned char *in, size_t inlen, unsigned char *out, int *state, int *save) +{ + unsigned char *outptr = out; + int c1, c2; + + if (inlen > 0) + outptr += g_mime_utils_base64_encode_step (in, inlen, outptr, state, save); + + c1 = ((unsigned char *)save)[1]; + c2 = ((unsigned char *)save)[2]; + + switch (((unsigned char *)save)[0]) { + case 2: + outptr[2] = base64_alphabet [(c2 & 0x0f) << 2]; + goto skip; + case 1: + outptr[2] = '='; + skip: + outptr[0] = base64_alphabet [c1 >> 2]; + outptr[1] = base64_alphabet [c2 >> 4 | ((c1 & 0x3) << 4)]; + outptr[3] = '='; + outptr += 4; + break; + } + + *outptr++ = 0; + + *save = 0; + *state = 0; + + return (outptr - out); } +char* pa_base64(const char *in, size_t len) +{ + /* wont go to more than 2x size (overly conservative) */ + char* result=new(PointerFreeGC) char[len * 2 + 6]; + int state=0; + int save=0; +#ifndef NDEBUG + size_t filled= +#endif + g_mime_utils_base64_encode_close ((const unsigned char*)in, len, + (unsigned char*)result, &state, &save); + assert(filled <= len * 2 + 6); + return result; +}