X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/55fb35e87a1ff550cbb3010c5a03064f0a2b10be..80699703b6015a8fe7707302f365020f9782cf2c:/apt-pkg/contrib/strutl.cc?ds=sidebyside diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc index a991b8988..2e2bb5ebc 100644 --- a/apt-pkg/contrib/strutl.cc +++ b/apt-pkg/contrib/strutl.cc @@ -43,9 +43,10 @@ bool UTF8ToCodeset(const char *codeset, const string &orig, string *dest) { iconv_t cd; const char *inbuf; - char *inptr, *outbuf, *outptr; - size_t insize, outsize; - + char *inptr, *outbuf; + size_t insize, bufsize; + dest->clear(); + cd = iconv_open(codeset, "UTF-8"); if (cd == (iconv_t)(-1)) { // Something went wrong @@ -55,22 +56,49 @@ bool UTF8ToCodeset(const char *codeset, const string &orig, string *dest) else perror("iconv_open"); - // Clean the destination string - *dest = ""; - return false; } - insize = outsize = orig.size(); + insize = bufsize = orig.size(); inbuf = orig.data(); inptr = (char *)inbuf; - outbuf = new char[insize+1]; - outptr = outbuf; + outbuf = new char[bufsize]; + size_t lastError = -1; - iconv(cd, &inptr, &insize, &outptr, &outsize); - *outptr = '\0'; + while (insize != 0) + { + char *outptr = outbuf; + size_t outsize = bufsize; + size_t const err = iconv(cd, &inptr, &insize, &outptr, &outsize); + dest->append(outbuf, outptr - outbuf); + if (err == (size_t)(-1)) + { + switch (errno) + { + case EILSEQ: + insize--; + inptr++; + // replace a series of unknown multibytes with a single "?" + if (lastError != insize) { + lastError = insize - 1; + dest->append("?"); + } + break; + case EINVAL: + insize = 0; + break; + case E2BIG: + if (outptr == outbuf) + { + bufsize *= 2; + delete[] outbuf; + outbuf = new char[bufsize]; + } + break; + } + } + } - *dest = outbuf; delete[] outbuf; iconv_close(cd); @@ -170,7 +198,8 @@ bool ParseQuoteWord(const char *&String,string &Res) char *I; for (I = Buffer; I < Buffer + sizeof(Buffer) && Start != C; I++) { - if (*Start == '%' && Start + 2 < C) + if (*Start == '%' && Start + 2 < C && + isxdigit(Start[1]) && isxdigit(Start[2])) { Tmp[0] = Start[1]; Tmp[1] = Start[2]; @@ -245,7 +274,8 @@ string QuoteString(const string &Str, const char *Bad) for (string::const_iterator I = Str.begin(); I != Str.end(); I++) { if (strchr(Bad,*I) != 0 || isprint(*I) == 0 || - *I <= 0x20 || *I >= 0x7F) + *I == 0x25 || // percent '%' char + *I <= 0x20 || *I >= 0x7F) // control chars { char Buf[10]; sprintf(Buf,"%%%02x",(int)*I); @@ -261,11 +291,17 @@ string QuoteString(const string &Str, const char *Bad) // --------------------------------------------------------------------- /* This undoes QuoteString */ string DeQuoteString(const string &Str) +{ + return DeQuoteString(Str.begin(),Str.end()); +} +string DeQuoteString(string::const_iterator const &begin, + string::const_iterator const &end) { string Res; - for (string::const_iterator I = Str.begin(); I != Str.end(); I++) + for (string::const_iterator I = begin; I != end; I++) { - if (*I == '%' && I + 2 < Str.end()) + if (*I == '%' && I + 2 < end && + isxdigit(I[1]) && isxdigit(I[2])) { char Tmp[3]; Tmp[0] = I[1]; @@ -304,13 +340,13 @@ string SizeToStr(double Size) { if (ASize < 100 && I != 0) { - sprintf(S,"%.1f%c",ASize,Ext[I]); + sprintf(S,"%'.1f %c",ASize,Ext[I]); break; } if (ASize < 10000) { - sprintf(S,"%.0f%c",ASize,Ext[I]); + sprintf(S,"%'.0f %c",ASize,Ext[I]); break; } ASize /= 1000.0; @@ -538,7 +574,7 @@ int stringcmp(string::const_iterator A,string::const_iterator AEnd, int stringcasecmp(const char *A,const char *AEnd,const char *B,const char *BEnd) { for (; A != AEnd && B != BEnd; A++, B++) - if (toupper(*A) != toupper(*B)) + if (tolower_ascii(*A) != tolower_ascii(*B)) break; if (A == AEnd && B == BEnd) @@ -547,7 +583,7 @@ int stringcasecmp(const char *A,const char *AEnd,const char *B,const char *BEnd) return 1; if (B == BEnd) return -1; - if (toupper(*A) < toupper(*B)) + if (tolower_ascii(*A) < tolower_ascii(*B)) return -1; return 1; } @@ -556,7 +592,7 @@ int stringcasecmp(string::const_iterator A,string::const_iterator AEnd, const char *B,const char *BEnd) { for (; A != AEnd && B != BEnd; A++, B++) - if (toupper(*A) != toupper(*B)) + if (tolower_ascii(*A) != tolower_ascii(*B)) break; if (A == AEnd && B == BEnd) @@ -565,7 +601,7 @@ int stringcasecmp(string::const_iterator A,string::const_iterator AEnd, return 1; if (B == BEnd) return -1; - if (toupper(*A) < toupper(*B)) + if (tolower_ascii(*A) < tolower_ascii(*B)) return -1; return 1; } @@ -573,7 +609,7 @@ int stringcasecmp(string::const_iterator A,string::const_iterator AEnd, string::const_iterator B,string::const_iterator BEnd) { for (; A != AEnd && B != BEnd; A++, B++) - if (toupper(*A) != toupper(*B)) + if (tolower_ascii(*A) != tolower_ascii(*B)) break; if (A == AEnd && B == BEnd) @@ -582,7 +618,7 @@ int stringcasecmp(string::const_iterator A,string::const_iterator AEnd, return 1; if (B == BEnd) return -1; - if (toupper(*A) < toupper(*B)) + if (tolower_ascii(*A) < tolower_ascii(*B)) return -1; return 1; } @@ -761,28 +797,28 @@ bool ReadMessages(int Fd, vector &List) // MonthConv - Converts a month string into a number /*{{{*/ // --------------------------------------------------------------------- /* This was lifted from the boa webserver which lifted it from 'wn-v1.07' - Made it a bit more robust with a few touppers though. */ + Made it a bit more robust with a few tolower_ascii though. */ static int MonthConv(char *Month) { - switch (toupper(*Month)) + switch (tolower_ascii(*Month)) { - case 'A': - return toupper(Month[1]) == 'P'?3:7; - case 'D': + case 'a': + return tolower_ascii(Month[1]) == 'p'?3:7; + case 'd': return 11; - case 'F': + case 'f': return 1; - case 'J': - if (toupper(Month[1]) == 'A') + case 'j': + if (tolower_ascii(Month[1]) == 'a') return 0; - return toupper(Month[2]) == 'N'?5:6; - case 'M': - return toupper(Month[2]) == 'R'?2:4; - case 'N': + return tolower_ascii(Month[2]) == 'n'?5:6; + case 'm': + return tolower_ascii(Month[2]) == 'r'?2:4; + case 'n': return 10; - case 'O': + case 'o': return 9; - case 'S': + case 's': return 8; // Pretend it is January.. @@ -791,34 +827,70 @@ static int MonthConv(char *Month) } } /*}}}*/ -// timegm - Internal timegm function if gnu is not available /*{{{*/ +// timegm - Internal timegm if the gnu version is not available /*{{{*/ // --------------------------------------------------------------------- -/* Ripped this evil little function from wget - I prefer the use of - GNU timegm if possible as this technique will have interesting problems - with leap seconds, timezones and other. - - Converts struct tm to time_t, assuming the data in tm is UTC rather +/* Converts struct tm to time_t, assuming the data in tm is UTC rather than local timezone (mktime assumes the latter). - - Contributed by Roger Beeman , with the help of - Mark Baushke and the rest of the Gurus at CISCO. */ - -/* Turned it into an autoconf check, because GNU is not the only thing which - can provide timegm. -- 2002-09-22, Joel Baker */ -#ifndef HAVE_TIMEGM // Now with autoconf! + This function is a nonstandard GNU extension that is also present on + the BSDs and maybe other systems. For others we follow the advice of + the manpage of timegm and use his portable replacement. */ +#ifndef HAVE_TIMEGM static time_t timegm(struct tm *t) { - time_t tl, tb; - - tl = mktime (t); - if (tl == -1) - return -1; - tb = mktime (gmtime (&tl)); - return (tl <= tb ? (tl + (tl - tb)) : (tl - (tb - tl))); + char *tz = getenv("TZ"); + setenv("TZ", "", 1); + tzset(); + time_t ret = mktime(t); + if (tz) + setenv("TZ", tz, 1); + else + unsetenv("TZ"); + tzset(); + return ret; } #endif /*}}}*/ +// FullDateToTime - Converts a HTTP1.1 full date strings into a time_t /*{{{*/ +// --------------------------------------------------------------------- +/* tries to parses a full date as specified in RFC2616 Section 3.3.1 + with one exception: All timezones (%Z) are accepted but the protocol + says that it MUST be GMT, but this one is equal to UTC which we will + encounter from time to time (e.g. in Release files) so we accept all + here and just assume it is GMT (or UTC) later on */ +bool RFC1123StrToTime(const char* const str,time_t &time) +{ + struct tm Tm; + setlocale (LC_ALL,"C"); + bool const invalid = + // Sun, 06 Nov 1994 08:49:37 GMT ; RFC 822, updated by RFC 1123 + (strptime(str, "%a, %d %b %Y %H:%M:%S %Z", &Tm) == NULL && + // Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036 + strptime(str, "%A, %d-%b-%y %H:%M:%S %Z", &Tm) == NULL && + // Sun Nov 6 08:49:37 1994 ; ANSI C's asctime() format + strptime(str, "%a %b %d %H:%M:%S %Y", &Tm) == NULL); + setlocale (LC_ALL,""); + if (invalid == true) + return false; + + time = timegm(&Tm); + return true; +} + /*}}}*/ +// FTPMDTMStrToTime - Converts a ftp modification date into a time_t /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool FTPMDTMStrToTime(const char* const str,time_t &time) +{ + struct tm Tm; + // MDTM includes no whitespaces but recommend and ignored by strptime + if (strptime(str, "%Y %m %d %H %M %S", &Tm) == NULL) + return false; + + time = timegm(&Tm); + return true; +} + /*}}}*/ // StrToTime - Converts a string into a time_t /*{{{*/ // --------------------------------------------------------------------- /* This handles all 3 populare time formats including RFC 1123, RFC 1036 @@ -896,6 +968,23 @@ bool StrToNum(const char *Str,unsigned long &Res,unsigned Len,unsigned Base) return true; } /*}}}*/ +// Base256ToNum - Convert a fixed length binary to a number /*{{{*/ +// --------------------------------------------------------------------- +/* This is used in decoding the 256bit encoded fixed length fields in + tar files */ +bool Base256ToNum(const char *Str,unsigned long &Res,unsigned int Len) +{ + if ((Str[0] & 0x80) == 0) + return false; + else + { + Res = Str[0] & 0x7F; + for(unsigned int i = 1; i < Len; ++i) + Res = (Res<<8) + Str[i]; + return true; + } +} + /*}}}*/ // HexDigit - Convert a hex character into an integer /*{{{*/ // --------------------------------------------------------------------- /* Helper for Hex2Num */ @@ -972,6 +1061,24 @@ bool TokSplitString(char Tok,char *Input,char **List, return true; } /*}}}*/ +// VectorizeString - Split a string up into a vector of strings /*{{{*/ +// --------------------------------------------------------------------- +/* This can be used to split a given string up into a vector, so the + propose is the same as in the method above and this one is a bit slower + also, but the advantage is that we have an iteratable vector */ +vector VectorizeString(string const &haystack, char const &split) +{ + string::const_iterator start = haystack.begin(); + string::const_iterator end = start; + vector exploded; + do { + for (; end != haystack.end() && *end != split; ++end); + exploded.push_back(string(start, end)); + start = end + 1; + } while (end != haystack.end() && (++end) != haystack.end()); + return exploded; +} + /*}}}*/ // RegexChoice - Simple regex list/list matcher /*{{{*/ // --------------------------------------------------------------------- /* */ @@ -1071,7 +1178,7 @@ void strprintf(string &out,const char *format,...) char *safe_snprintf(char *Buffer,char *End,const char *Format,...) { va_list args; - unsigned long Did; + int Did; va_start(args,Format); @@ -1084,13 +1191,25 @@ char *safe_snprintf(char *Buffer,char *End,const char *Format,...) return Buffer + Did; } /*}}}*/ +// StripEpoch - Remove the version "epoch" from a version string /*{{{*/ +// --------------------------------------------------------------------- +string StripEpoch(const string &VerStr) +{ + size_t i = VerStr.find(":"); + if (i == string::npos) + return VerStr; + return VerStr.substr(i+1); +} // tolower_ascii - tolower() function that ignores the locale /*{{{*/ // --------------------------------------------------------------------- -/* */ -int tolower_ascii(int c) +/* This little function is the most called method we have and tries + therefore to do the absolut minimum - and is noteable faster than + standard tolower/toupper and as a bonus avoids problems with different + locales - we only operate on ascii chars anyway. */ +int tolower_ascii(int const c) { - if (c >= 'A' and c <= 'Z') + if (c >= 'A' && c <= 'Z') return c + 32; return c; } @@ -1189,9 +1308,10 @@ void URI::CopyFrom(const string &U) else { Host.assign(At+1,SingleSlash); - User.assign(FirstColon,SecondColon); + // username and password must be encoded (RFC 3986) + User.assign(DeQuoteString(FirstColon,SecondColon)); if (SecondColon < At) - Password.assign(SecondColon+1,At); + Password.assign(DeQuoteString(SecondColon+1,At)); } // Now we parse the RFC 2732 [] hostnames. @@ -1295,3 +1415,15 @@ string URI::SiteOnly(const string &URI) return U; } /*}}}*/ +// URI::NoUserPassword - Return the schema, site and path for the URI /*{{{*/ +// --------------------------------------------------------------------- +/* */ +string URI::NoUserPassword(const string &URI) +{ + ::URI U(URI); + U.User.clear(); + U.Password.clear(); + U.Port = 0; + return U; +} + /*}}}*/