diff options
Diffstat (limited to 'apt-pkg/contrib/strutl.cc')
| -rw-r--r-- | apt-pkg/contrib/strutl.cc | 119 |
1 files changed, 104 insertions, 15 deletions
diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc index 072dda3ac..aaf44b7ff 100644 --- a/apt-pkg/contrib/strutl.cc +++ b/apt-pkg/contrib/strutl.cc @@ -15,12 +15,12 @@ ##################################################################### */ /*}}}*/ // Includes /*{{{*/ +#include <config.h> + #include <apt-pkg/strutl.h> #include <apt-pkg/fileutl.h> #include <apt-pkg/error.h> -#include <apti18n.h> - #include <ctype.h> #include <string.h> #include <stdio.h> @@ -31,7 +31,7 @@ #include <stdarg.h> #include <iconv.h> -#include "config.h" +#include <apti18n.h> using namespace std; /*}}}*/ @@ -271,7 +271,7 @@ bool ParseCWord(const char *&String,string &Res) string QuoteString(const string &Str, const char *Bad) { string Res; - for (string::const_iterator I = Str.begin(); I != Str.end(); I++) + for (string::const_iterator I = Str.begin(); I != Str.end(); ++I) { if (strchr(Bad,*I) != 0 || isprint(*I) == 0 || *I == 0x25 || // percent '%' char @@ -298,7 +298,7 @@ string DeQuoteString(string::const_iterator const &begin, string::const_iterator const &end) { string Res; - for (string::const_iterator I = begin; I != end; I++) + for (string::const_iterator I = begin; I != end; ++I) { if (*I == '%' && I + 2 < end && isxdigit(I[1]) && isxdigit(I[2])) @@ -632,7 +632,7 @@ string LookupTag(const string &Message,const char *Tag,const char *Default) { // Look for a matching tag. int Length = strlen(Tag); - for (string::const_iterator I = Message.begin(); I + Length < Message.end(); I++) + for (string::const_iterator I = Message.begin(); I + Length < Message.end(); ++I) { // Found the tag if (I[Length] == ':' && stringcasecmp(I,I+Length,Tag) == 0) @@ -640,14 +640,14 @@ string LookupTag(const string &Message,const char *Tag,const char *Default) // Find the end of line and strip the leading/trailing spaces string::const_iterator J; I += Length + 1; - for (; isspace(*I) != 0 && I < Message.end(); I++); - for (J = I; *J != '\n' && J < Message.end(); J++); - for (; J > I && isspace(J[-1]) != 0; J--); + for (; isspace(*I) != 0 && I < Message.end(); ++I); + for (J = I; *J != '\n' && J < Message.end(); ++J); + for (; J > I && isspace(J[-1]) != 0; --J); return string(I,J); } - for (; *I != '\n' && I < Message.end(); I++); + for (; *I != '\n' && I < Message.end(); ++I); } // Failed to find a match @@ -970,6 +970,34 @@ bool StrToNum(const char *Str,unsigned long &Res,unsigned Len,unsigned Base) return true; } /*}}}*/ +// StrToNum - Convert a fixed length string to a number /*{{{*/ +// --------------------------------------------------------------------- +/* This is used in decoding the crazy fixed length string headers in + tar and ar files. */ +bool StrToNum(const char *Str,unsigned long long &Res,unsigned Len,unsigned Base) +{ + char S[30]; + if (Len >= sizeof(S)) + return false; + memcpy(S,Str,Len); + S[Len] = 0; + + // All spaces is a zero + Res = 0; + unsigned I; + for (I = 0; S[I] == ' '; I++); + if (S[I] == 0) + return true; + + char *End; + Res = strtoull(S,&End,Base); + if (End == S) + return false; + + return true; +} + /*}}}*/ + // Base256ToNum - Convert a fixed length binary to a number /*{{{*/ // --------------------------------------------------------------------- /* This is used in decoding the 256bit encoded fixed length fields in @@ -1224,7 +1252,7 @@ int tolower_ascii(int const c) bool CheckDomainList(const string &Host,const string &List) { string::const_iterator Start = List.begin(); - for (string::const_iterator Cur = List.begin(); Cur <= List.end(); Cur++) + for (string::const_iterator Cur = List.begin(); Cur <= List.end(); ++Cur) { if (Cur < List.end() && *Cur != ',') continue; @@ -1240,7 +1268,68 @@ bool CheckDomainList(const string &Host,const string &List) return false; } /*}}}*/ +// DeEscapeString - unescape (\0XX and \xXX) from a string /*{{{*/ +// --------------------------------------------------------------------- +/* */ +string DeEscapeString(const string &input) +{ + char tmp[3]; + string::const_iterator it, escape_start; + string output, octal, hex; + for (it = input.begin(); it != input.end(); ++it) + { + // just copy non-escape chars + if (*it != '\\') + { + output += *it; + continue; + } + + // deal with double escape + if (*it == '\\' && + (it + 1 < input.end()) && it[1] == '\\') + { + // copy + output += *it; + // advance iterator one step further + ++it; + continue; + } + + // ensure we have a char to read + if (it + 1 == input.end()) + continue; + // read it + ++it; + switch (*it) + { + case '0': + if (it + 2 <= input.end()) { + tmp[0] = it[1]; + tmp[1] = it[2]; + tmp[2] = 0; + output += (char)strtol(tmp, 0, 8); + it += 2; + } + break; + case 'x': + if (it + 2 <= input.end()) { + tmp[0] = it[1]; + tmp[1] = it[2]; + tmp[2] = 0; + output += (char)strtol(tmp, 0, 16); + it += 2; + } + break; + default: + // FIXME: raise exception here? + break; + } + } + return output; +} + /*}}}*/ // URI::CopyFrom - Copy from an object /*{{{*/ // --------------------------------------------------------------------- /* This parses the URI into all of its components */ @@ -1249,7 +1338,7 @@ void URI::CopyFrom(const string &U) string::const_iterator I = U.begin(); // Locate the first colon, this separates the scheme - for (; I < U.end() && *I != ':' ; I++); + for (; I < U.end() && *I != ':' ; ++I); string::const_iterator FirstColon = I; /* Determine if this is a host type URI with a leading double // @@ -1261,7 +1350,7 @@ void URI::CopyFrom(const string &U) /* Find the / indicating the end of the hostname, ignoring /'s in the square brackets */ bool InBracket = false; - for (; SingleSlash < U.end() && (*SingleSlash != '/' || InBracket == true); SingleSlash++) + for (; SingleSlash < U.end() && (*SingleSlash != '/' || InBracket == true); ++SingleSlash) { if (*SingleSlash == '[') InBracket = true; @@ -1294,11 +1383,11 @@ void URI::CopyFrom(const string &U) I = FirstColon + 1; if (I > SingleSlash) I = SingleSlash; - for (; I < SingleSlash && *I != ':'; I++); + for (; I < SingleSlash && *I != ':'; ++I); string::const_iterator SecondColon = I; // Search for the @ after the colon - for (; I < SingleSlash && *I != '@'; I++); + for (; I < SingleSlash && *I != '@'; ++I); string::const_iterator At = I; // Now write the host and user/pass |