+++ /dev/null
-/*
-June 14, 1999
-
-Recover text articles from cyclic buffers
-Articles start with "\0Path:"
-and end with "\r\n.\r\n"
-
-Tested with INND 2.2 under AIX 4.2
-
-rifkin@uconn.edu
-*/
-/*
-(1) Pull 16 bytes at a time
-(2) Last 7 bytes must be \000\000\000Path
-(3) When found, print "\nPath";
-(4) print subsequent bytes until \r\n.\r\n found
-*/
-
-#include "config.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define INFILE 1
-#define FILEPREFIX 2
-#define HEADER 3
-#define STRING 4
-
-/* String buffer size */
-#define NBUFF 512
-
-#define MAX_ART_SIZE 2200000
-
-
-#define WRITEMSG printf ("File %s line %i\n", __FILE__, __LINE__); \
- fflush(stdout);
-
-#define WRITEVAR(VAR_NAME,VAR_TYPE) \
- { \
- printf ("FILE %s LINE %i :", __FILE__, __LINE__); \
- printf ("%s = ", #VAR_NAME); \
- printf (#VAR_TYPE, (VAR_NAME) ); \
- printf ("\n"); \
- }
-
-#define WRITETXT(TEXT) \
- printf ("FILE %s LINE %i \"%s\"\n", __FILE__, __LINE__, TEXT); \
- fflush(stdout);
-
-#if 0
-#define WRITEMSG
-#define WRITEVAR(X,Y)
-#endif
-
-
-int WriteArticle (char *, int, char *, char *, char *, int);
-
-
-char ArtHead[7] = {0, 0, 0, 'P', 'a', 't', 'h'};
-char ArtTail[5] = {'\r', '\n', '.', '\r', '\n'};
-int LenTail = 5;
-
-int main (int argc, char *argv[])
- {
- FILE *Infile;
- int NumTailCharFound;
- bool ReadingArticle = false;
- char buffer[32];
- char *obuffer = NULL;
- char *header = NULL;
- char *string = NULL;
- int osize = MAX_ART_SIZE;
- int opos = 0;
- int i;
- int nchar;
- int fileno = 0;
- int artno = 0;
-
- /* Check number of args */
- if (argc<3)
- {
- printf ("Usage: pullart <cycbuff> <fileprefix> [<header> <string>]\n");
- printf (" Read cycbuffer <cycbuff> and print all articles whose\n");
- printf (" article header <header> contains <string>.\n");
- printf (" Articles are written to files name <fileprefix>.nnnnnn\n");
- printf (" where nnnnnn is numbered sequentially from 0.\n");
- printf (" If <header> and <string> not specified, all articles\n");
- printf (" are written.\n");
- printf (" Examples:\n");
- printf (" pullart /news3/cycbuff.3 alt.rec Newsgroup: alt.rec\n");
- printf (" pullart /news3/cycbuff.3 all\n");
- printf (" pullart firstbuff article Subject bluejay\n");
- return 0;
- }
-
- /* Allocate output buffer */
- obuffer = (char *) calloc (osize+1, sizeof(char));
- if (obuffer==NULL)
- {
- printf ("Cannot allocate obuffer[]\n");
- return 1;
- }
-
-
- /* Open input file */
- Infile = fopen (argv[INFILE], "rb");
- if (Infile==NULL)
- {
- printf ("Cannot open input file.\n");
- return 1;
- }
-
-
-if (argc>=4) header = argv[HEADER];
-if (argc>=5) string = argv[STRING];
-if (*header=='\0') header=NULL;
-if (*string=='\0') string=NULL;
-
-/*test*/
-printf ("filename <%s>\n", argv[INFILE]);
-printf ("fileprefix <%s>\n", argv[FILEPREFIX]);
-printf ("header <%s>\n", header);
-printf ("string <%s>\n", string);
-
-
- /* Skip first 0x38000 16byte buffers */
- i = fseek (Infile, 0x38000L, SEEK_SET);
-
- /* Read following 16 byte buffers */
- ReadingArticle = false;
- NumTailCharFound = 0;
- nchar=0;
- artno=0;
- while ( 0!=fread(buffer, 16, 1, Infile) )
- {
-
- nchar+=16;
-
- /* Found start of article, start writing to obuffer */
- if (0==memcmp(buffer+9, ArtHead, 7))
- {
- ReadingArticle = true;
- memcpy (obuffer, "Path", 4);
- opos = 4;
- continue;
- }
-
- /* Currnetly reading article */
- if (ReadingArticle)
- {
- for (i=0; i<16; i++)
- {
-
- /* Article too big, drop it and move on */
- if (opos>=osize)
- {
- printf
- ("article number %i bigger than buffer size %i.\n",
- artno+1, osize);
- artno++;
- ReadingArticle=false;
- break;
- }
-
- /* Add current character to output buffer, but remove \r */
- if ('\r' != buffer[i])
- obuffer[opos++] = buffer[i];
-
- /* Check for article ending sequence */
- if (buffer[i]==ArtTail[NumTailCharFound])
- {
- NumTailCharFound++;
- }
- else
- NumTailCharFound=0;
-
- /* End found, write article, reset for next */
- if (NumTailCharFound==LenTail)
- {
- ReadingArticle = false;
- NumTailCharFound = 0;
-
- /* Add trailing \0 to buffer */
- obuffer[opos+1] = '\0';
-
- fileno += WriteArticle
- (obuffer, opos, argv[FILEPREFIX],
- header, string, fileno);
- artno++;
- break;
- }
- }
-
- }
-
- }
-
- close (Infile);
-
- return 0;
- }
-
-
-
-/*
-Writes article stored in buff[] if it has a
-"Newsgroups:" header line which contains *newsgroup
-Write to a file named fileprefix.fileno
-*/
-int
-WriteArticle
-(char *buff, int n, char *fileprefix, char *headerin, char *string, int fileno)
- {
- char *begptr;
- char *endptr;
- char *newsptr;
- char savechar;
- char header[NBUFF];
- char filename[NBUFF];
- FILE *outfile;
-
-
- /* Prevent buffer overflow due to fileprefix too long */
- if (strlen(fileprefix)>384)
- {
- printf
- ("program error: cannot have file prefix greater then 384 characters\n");
- exit(1);
- }
-
- /*
- Is header here? Search if header string requested, leave if not found
- */
- if (headerin!=NULL)
- {
- /* Find \nHEADER */
- strlcpy(header, "\n", sizeof(header));
- strlcat(header, headerin, sizeof(header));
-
- begptr = strstr (buff, header);
-
- /* return if Header name not found */
- if (begptr==NULL)
- {
- return 0;
- }
-
- /*
- Header found. What about string?
- Search if string requested, leave if not found
- */
- if (string!=NULL)
- {
- /* Find end of header line */
- begptr++;
- endptr = strchr (begptr, '\n');
-
- /* Something is wrong, end of header not found, do not write
- * article
- */
- if (endptr==NULL)
- return 0;
-
- /* Temporarily make string end a null char */
- savechar = *endptr;
- *endptr = '\0';
- newsptr = strstr (begptr, string);
-
- /* Requested newsgroup not found */
- if (newsptr==NULL)
- return 0;
-
- /* Restore character at end of header string */
- *endptr = savechar;
- }
- /* No string specified */
-
- }
- /* No header specified */
-
- /* Open file, write buffer, close file */
- snprintf (filename, sizeof(filename), "%s.%06i", fileprefix, fileno);
-
- outfile = fopen (filename, "wt");
- if (outfile==NULL) {
- printf ("Cannot open file name %s\n", filename);
- exit(1);
- }
-
- while (n--)
- fprintf (outfile, "%c", *buff++);
-
- close (outfile);
-
- /* Return number of files written */
- return 1;
- }
~ian / innduct.git / blobdiff