+ const char *Stop;
+ if (Find(Tag,Start,Stop) == false)
+ return Default;
+
+ // Copy it into a temp buffer so we can use strtol
+ char S[300];
+ if ((unsigned)(Stop - Start) >= sizeof(S))
+ return Default;
+ strncpy(S,Start,Stop-Start);
+ S[Stop - Start] = 0;
+
+ char *End;
+ signed long Result = strtol(S,&End,10);
+ if (S == End)
+ return Default;
+ return Result;
+}
+ /*}}}*/
+// TagSection::FindULL - Find an unsigned long long integer /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+unsigned long long pkgTagSection::FindULL(const char *Tag, unsigned long long const &Default) const
+{
+ const char *Start;
+ const char *Stop;
+ if (Find(Tag,Start,Stop) == false)
+ return Default;
+
+ // Copy it into a temp buffer so we can use strtoull
+ char S[100];
+ if ((unsigned)(Stop - Start) >= sizeof(S))
+ return Default;
+ strncpy(S,Start,Stop-Start);
+ S[Stop - Start] = 0;
+
+ char *End;
+ unsigned long long Result = strtoull(S,&End,10);
+ if (S == End)
+ return Default;
+ return Result;
+}
+ /*}}}*/
+// TagSection::FindFlag - Locate a yes/no type flag /*{{{*/
+// ---------------------------------------------------------------------
+/* The bits marked in Flag are masked on/off in Flags */
+bool pkgTagSection::FindFlag(const char *Tag,unsigned long &Flags,
+ unsigned long Flag) const
+{
+ const char *Start;
+ const char *Stop;
+ if (Find(Tag,Start,Stop) == false)
+ return true;
+
+ switch (StringToBool(string(Start,Stop)))
+ {
+ case 0:
+ Flags &= ~Flag;
+ return true;
+
+ case 1:
+ Flags |= Flag;
+ return true;
+
+ default:
+ _error->Warning("Unknown flag value: %s",string(Start,Stop).c_str());
+ return true;
+ }
+ return true;
+}
+ /*}}}*/
+// TFRewrite - Rewrite a control record /*{{{*/
+// ---------------------------------------------------------------------
+/* This writes the control record to stdout rewriting it as necessary. The
+ override map item specificies the rewriting rules to follow. This also
+ takes the time to sort the feild list. */
+
+/* The order of this list is taken from dpkg source lib/parse.c the fieldinfos
+ array. */
+static const char *iTFRewritePackageOrder[] = {
+ "Package",
+ "Essential",
+ "Status",
+ "Priority",
+ "Section",
+ "Installed-Size",
+ "Maintainer",
+ "Original-Maintainer",
+ "Architecture",
+ "Source",
+ "Version",
+ "Revision", // Obsolete
+ "Config-Version", // Obsolete
+ "Replaces",
+ "Provides",
+ "Depends",
+ "Pre-Depends",
+ "Recommends",
+ "Suggests",
+ "Conflicts",
+ "Breaks",
+ "Conffiles",
+ "Filename",
+ "Size",
+ "MD5Sum",
+ "SHA1",
+ "SHA256",
+ "MSDOS-Filename", // Obsolete
+ "Description",
+ 0};
+static const char *iTFRewriteSourceOrder[] = {"Package",
+ "Source",
+ "Binary",
+ "Version",
+ "Priority",
+ "Section",
+ "Maintainer",
+ "Original-Maintainer",
+ "Build-Depends",
+ "Build-Depends-Indep",
+ "Build-Conflicts",
+ "Build-Conflicts-Indep",
+ "Architecture",
+ "Standards-Version",
+ "Format",
+ "Directory",
+ "Files",
+ 0};
+
+/* Two levels of initialization are used because gcc will set the symbol
+ size of an array to the length of the array, causing dynamic relinking
+ errors. Doing this makes the symbol size constant */
+const char **TFRewritePackageOrder = iTFRewritePackageOrder;
+const char **TFRewriteSourceOrder = iTFRewriteSourceOrder;
+
+bool TFRewrite(FILE *Output,pkgTagSection const &Tags,const char *Order[],
+ TFRewriteData *Rewrite)
+{
+ unsigned char Visited[256]; // Bit 1 is Order, Bit 2 is Rewrite
+ for (unsigned I = 0; I != 256; I++)
+ Visited[I] = 0;
+
+ // Set new tag up as necessary.
+ for (unsigned int J = 0; Rewrite != 0 && Rewrite[J].Tag != 0; J++)
+ {
+ if (Rewrite[J].NewTag == 0)
+ Rewrite[J].NewTag = Rewrite[J].Tag;
+ }
+
+ // Write all all of the tags, in order.
+ for (unsigned int I = 0; Order[I] != 0; I++)
+ {
+ bool Rewritten = false;
+
+ // See if this is a field that needs to be rewritten
+ for (unsigned int J = 0; Rewrite != 0 && Rewrite[J].Tag != 0; J++)
+ {
+ if (strcasecmp(Rewrite[J].Tag,Order[I]) == 0)
+ {
+ Visited[J] |= 2;
+ if (Rewrite[J].Rewrite != 0 && Rewrite[J].Rewrite[0] != 0)
+ {
+ if (isspace(Rewrite[J].Rewrite[0]))
+ fprintf(Output,"%s:%s\n",Rewrite[J].NewTag,Rewrite[J].Rewrite);
+ else
+ fprintf(Output,"%s: %s\n",Rewrite[J].NewTag,Rewrite[J].Rewrite);
+ }
+
+ Rewritten = true;
+ break;
+ }
+ }
+
+ // See if it is in the fragment
+ unsigned Pos;
+ if (Tags.Find(Order[I],Pos) == false)
+ continue;
+ Visited[Pos] |= 1;
+
+ if (Rewritten == true)
+ continue;
+
+ /* Write out this element, taking a moment to rewrite the tag
+ in case of changes of case. */
+ const char *Start;
+ const char *Stop;
+ Tags.Get(Start,Stop,Pos);
+
+ if (fputs(Order[I],Output) < 0)
+ return _error->Errno("fputs","IO Error to output");
+ Start += strlen(Order[I]);
+ if (fwrite(Start,Stop - Start,1,Output) != 1)
+ return _error->Errno("fwrite","IO Error to output");
+ if (Stop[-1] != '\n')
+ fprintf(Output,"\n");
+ }
+
+ // Now write all the old tags that were missed.
+ for (unsigned int I = 0; I != Tags.Count(); I++)
+ {
+ if ((Visited[I] & 1) == 1)
+ continue;
+
+ const char *Start;
+ const char *Stop;
+ Tags.Get(Start,Stop,I);
+ const char *End = Start;
+ for (; End < Stop && *End != ':'; End++);
+
+ // See if this is a field that needs to be rewritten
+ bool Rewritten = false;
+ for (unsigned int J = 0; Rewrite != 0 && Rewrite[J].Tag != 0; J++)
+ {
+ if (stringcasecmp(Start,End,Rewrite[J].Tag) == 0)
+ {
+ Visited[J] |= 2;
+ if (Rewrite[J].Rewrite != 0 && Rewrite[J].Rewrite[0] != 0)
+ {
+ if (isspace(Rewrite[J].Rewrite[0]))
+ fprintf(Output,"%s:%s\n",Rewrite[J].NewTag,Rewrite[J].Rewrite);
+ else
+ fprintf(Output,"%s: %s\n",Rewrite[J].NewTag,Rewrite[J].Rewrite);
+ }
+
+ Rewritten = true;
+ break;
+ }
+ }
+
+ if (Rewritten == true)
+ continue;
+
+ // Write out this element
+ if (fwrite(Start,Stop - Start,1,Output) != 1)
+ return _error->Errno("fwrite","IO Error to output");
+ if (Stop[-1] != '\n')
+ fprintf(Output,"\n");
+ }
projects / apt.git / blobdiff