diff options
| -rw-r--r-- | apt-pkg/contrib/cdromutl.cc | 8 | ||||
| -rw-r--r-- | apt-pkg/contrib/strutl.cc | 63 | ||||
| -rw-r--r-- | apt-pkg/contrib/strutl.h | 4 | ||||
| -rw-r--r-- | debian/changelog | 3 | ||||
| -rw-r--r-- | test/libapt/makefile | 6 | ||||
| -rw-r--r-- | test/libapt/strutil_test.cc | 40 |
6 files changed, 118 insertions, 6 deletions
diff --git a/apt-pkg/contrib/cdromutl.cc b/apt-pkg/contrib/cdromutl.cc index 551efa7d9..e25caf1a5 100644 --- a/apt-pkg/contrib/cdromutl.cc +++ b/apt-pkg/contrib/cdromutl.cc @@ -258,13 +258,9 @@ string FindMountPointForDevice(const char *devnode) if(TokSplitString(' ', buf, out, 10)) { fclose(f); - // unescape \040 and return the path - size_t pos; + // unescape the \0XXX chars in the path string mount_point = out[1]; - static const char *needle = "\\040"; - while ((pos = mount_point.find(needle)) != string::npos) - mount_point.replace(pos, strlen(needle), " "); - return mount_point; + return DeEscapeString(mount_point); } } } diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc index 072dda3ac..a97dd30e5 100644 --- a/apt-pkg/contrib/strutl.cc +++ b/apt-pkg/contrib/strutl.cc @@ -1240,7 +1240,70 @@ bool CheckDomainList(const string &Host,const string &List) return false; } /*}}}*/ +// ProcessEscapeSequences /*{{{*/ +// --------------------------------------------------------------------- +/* */ +string DeEscapeString(string &input) +{ + char tmp[5]; + 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 += 1; + continue; + } + + // ensure we have a char to read + if (it + 1 == input.end()) + continue; + // read it + it++; + switch (*it) + { + case '0': + if (it + 3 <= input.end()) { + tmp[0] = it[1]; + tmp[1] = it[2]; + tmp[2] = it[3]; + tmp[3] = 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? + std::cerr << "lala" << *it << endl; + break; + } + } + return output; +} + /*}}}*/ // URI::CopyFrom - Copy from an object /*{{{*/ // --------------------------------------------------------------------- /* This parses the URI into all of its components */ diff --git a/apt-pkg/contrib/strutl.h b/apt-pkg/contrib/strutl.h index 89cbf0370..43bbfe366 100644 --- a/apt-pkg/contrib/strutl.h +++ b/apt-pkg/contrib/strutl.h @@ -39,6 +39,10 @@ bool ParseCWord(const char *&String,string &Res); string QuoteString(const string &Str,const char *Bad); string DeQuoteString(const string &Str); string DeQuoteString(string::const_iterator const &begin, string::const_iterator const &end); + +// unescape (\0XXX and \xXX) from a string +string DeEscapeString(string &input); + string SizeToStr(double Bytes); string TimeToStr(unsigned long Sec); string Base64Encode(const string &Str); diff --git a/debian/changelog b/debian/changelog index 29a571fb9..f620bd871 100644 --- a/debian/changelog +++ b/debian/changelog @@ -6,6 +6,9 @@ apt (0.8.15.2) unstable; urgency=high - fix missing download progress in apt-get download * apt-pkg/contrib/cdromutl.cc: - fix escape problem when looking for the mounted devices + * apt-pkg/contrib/strutl.{h,cc}, test/libapt/strutil_test.cc: + - add new DeEscapeString() similar to DeQuoteQuotedWord but + unescape charackter escapes like \0XXX and \xXX (plus add test) -- Michael Vogt <mvo@debian.org> Tue, 12 Jul 2011 11:54:47 +0200 diff --git a/test/libapt/makefile b/test/libapt/makefile index 50058262e..fec928ad2 100644 --- a/test/libapt/makefile +++ b/test/libapt/makefile @@ -46,3 +46,9 @@ PROGRAM = GlobalError${BASENAME} SLIBS = -lapt-pkg SOURCE = globalerror_test.cc include $(PROGRAM_H) + +# test the strutils stuff +PROGRAM = StrUtil${BASENAME} +SLIBS = -lapt-pkg +SOURCE = strutil_test.cc +include $(PROGRAM_H) diff --git a/test/libapt/strutil_test.cc b/test/libapt/strutil_test.cc new file mode 100644 index 000000000..8d81a0c6c --- /dev/null +++ b/test/libapt/strutil_test.cc @@ -0,0 +1,40 @@ +#include <apt-pkg/strutl.h> + +#include "assert.h" + +int main(int argc,char *argv[]) +{ + string input, output, expected; + + // no input + input = "foobar"; + expected = "foobar"; + output = DeEscapeString(input); + equals(output, expected); + + // hex and octal + input = "foo\\040bar\\x0abaz"; + expected = "foo bar\nbaz"; + output = DeEscapeString(input); + equals(output, expected); + + // at the end + input = "foo\\040"; + expected = "foo "; + output = DeEscapeString(input); + equals(output, expected); + + // double escape + input = "foo\\\\ x"; + expected = "foo\\ x"; + output = DeEscapeString(input); + equals(output, expected); + + // double escape at the end + input = "\\\\foo\\\\"; + expected = "\\foo\\"; + output = DeEscapeString(input); + equals(output, expected); + + return 0; +} |