archnews for the 7300 (partial repost)

[News]

#!/bin/sh
#
# The version of archnews which I posted had two very important missing lines:
# a fflush without which the summary file gets replicated lines and an exit
# when a bounce occurs writing a file to the floppy.  Since the diffs were
# about 3/4 the size of archnews the following is a new archnews.c and
# archnews.1
# 
# David Albrecht
# 
#
echo 'Start of ../archnews.post1, part 01 of 01:'
echo 'x - archnews.c'
sed 's/^X//' > archnews.c << '/'
X#define MAXSTRING 132
X#define MAXDIR 60
X
X#include <stdio.h>
X
X#include "ndir.h"
X#include <sys/stat.h>
X
Xchar newsbuf[512], archdir[MAXDIR], make_dirs[8][MAXDIR], target[MAXDIR];
Xchar in_string[MAXSTRING];
X
XFILE *summaries = {stdout};
X
Xmain(argc,argv)
Xint argc;
Xchar **argv;
X{   char rootdir[MAXDIR], newspath[MAXDIR], newsgroup[MAXDIR];
X
X    getcwd(rootdir, MAXDIR);
X    *newspath = '\0';
X    *newsgroup = '\0';
X    if (argc > 1) {
X	strcpy(archdir, argv[1]);
X	if (argc > 2) {
X	    summaries = fopen(argv[2], "a");
X	    if (!summaries) {
X	    	fprintf(stderr, "unable to open summary file %s\n", argv[2]);
X	    	exit(1);
X	    }
X	}
X    }
X    else {
X	fprintf(stderr, "archnews archive_directory [ summary_file ]\n");
X	exit(1);
X    }
X    procdir(rootdir, newspath, newsgroup, 0);
X}
X
Xprocdir(dirpath, newspath, newsgroup, level)
Xchar *dirpath, *newspath, *newsgroup;
X{   DIR *directory;
X    FILE *fp, *fp1, *pin, *pout;
X    struct direct *dp;
X    struct stat buf;
X    int ldirpath, lnewspath, lnewsgroup, i, f_status, child_status, pid;
X    char entryname[MAXDIR], *str, c;
X
X    if (!(directory = opendir(dirpath))) {
X	fprintf(stderr, "unable to open directory %s\n", dirpath);
X    }
X    else {
X	while (dp = readdir(directory)) {
X
X	    if (*(dp->d_name) == '.') continue;
X
X	    *entryname= '\0';
X	    strncat(entryname, dp->d_name, dp->d_namlen);
X	    fp = fopen(entryname, "r");
X	    if (!fp) {
X		fprintf(stderr, "unable to open file %s/%s\n",
X				 dirpath, entryname);
X		continue;
X	    }
X
X	    fstat(fileno(fp), &buf);
X	    if (buf.st_mode & S_IFDIR) {
X		fclose(fp);
X
X		ldirpath = strlen(dirpath);
X		strcat(dirpath, "/");
X		strcat(dirpath, entryname);
X
X		lnewspath = strlen(newspath);
X		if (lnewspath) {
X		    strcat(newspath, "/");
X		}
X		strcat(newspath, entryname);
X
X		lnewsgroup = strlen(newsgroup);
X		if (lnewsgroup) {
X		    strcat(newsgroup, ".");
X		}
X		strcat(newsgroup, entryname);
X
X		strcpy(target, archdir);
X		strcat(target, "/");
X		strcat(target, newspath);
X		fp = fopen(target, "r");
X		if (!fp) {
X		    strcpy(&make_dir[level][0], target);
X		}
X		else {
X		    fclose(fp);
X		}
X
X		chdir(entryname);
X
X		procdir(dirpath, newspath, newsgroup, level + 1);
X
X		make_dir[level][0] = '\0';
X		dirpath[ldirpath] = '\0';
X		chdir(dirpath);
X		newspath[lnewspath] = '\0';
X		newsgroup[lnewsgroup] = '\0';
X	    }
X	    else {
X		for (i = 0; i < level; i++) {
X		    if (make_dir[i][0]) {
X			if (mkdir(&make_dir[i][0], 0777)) {
X			    fprintf(stderr, "cannot create directory %s, archive full\n",
X					    &make_dir[i][0]);
X			}
X			else {
X			    make_dir[i][0] = '\0';
X			}
X		    }
X		}
X
X		strcpy(target, archdir);
X		strcat(target, "/");
X		strcat(target, newspath);
X		strcat(target, "/");
X		strcat(target, entryname);
X		strcat(target, ".Z");
X		fp1 = fopen(target, "w");
X		if (!fp1) {
X		    fprintf(stderr, "unable to create %s, archive full\n", target);
X		    exit(1);
X		}
X
X		fflush(summaries);
X		if (pipe_command("/usr/lib/news/compress", "compress", &pin, &pout)) {
X		    fprintf(stderr, "pipe to /usr/lib/news/compress failed\n");
X		    exit(1);
X		}
X
X		if (!(pid = fork())) {
X			
X		    fclose(fp);
X		    fclose(pin);
X
X		    c = getc(pout);
X		    while (!feof(pout)) {
X			if ((f_status = putc(c, fp1)) == EOF) {
X			    break;
X			}
X			c = getc(pout);
X		    }
X		    fclose(fp1);
X
X		    if (f_status == EOF) {
X			while (!feof(pout)) getc(pout);
X			fclose(pout);
X			exit(1);
X		    }
X		    else {
X			fclose(pout);
X			exit(0);
X		    }
X		}
X		else {
X
X		    fclose(fp1);
X		    fclose(pout);
X
X		    *newsbuf = '\0';
X		    str = newsbuf;
X		    i = 0;
X		    while (fgets(in_string, MAXSTRING - 1, fp)) {
X			fputs(in_string, pin);
X			if (!strncmp(in_string, "Subject", 7)) {
X			    sprintf(str, "%s:%s - %s", newsgroup, entryname, in_string);
X			    str += strlen(str);
X			}
X			else if (!strncmp(in_string, "Summary", 7)) {
X			    sprintf(str, "%s:%s - %s", newsgroup, entryname, in_string);
X			    str += strlen(str);
X			}
X			else if (!strncmp(in_string, "Keywords", 8)) {
X			    sprintf(str, "%s:%s - %s", newsgroup, entryname, in_string);
X			    str += strlen(str);
X			}
X		    }
X		    fclose(fp);
X		    fclose(pin);
X
X		    while (wait(&child_status) != pid);
X		    if (child_status >> 8) {
X			fprintf(stderr, "write to %s failed, archive full\n",
X					target);
X			unlink(target);
X			exit(1);
X		    }
X		    else {
X			fputs(newsbuf, summaries);
X			unlink(entryname);
X		    }
X		}
X	    }
X	}
X	closedir(directory);
X    }
X}
X
Xpipe_command(path, command, pin, pout)
Xchar *path, *command;
XFILE **pin;
XFILE **pout;
X
X{   int fildes1[2], fildes2[2], status = 0;
X
X    if (pipe(fildes1)) {
X	fprintf(stderr, "cannot create pipes for %s command\n", path);
X	status = 1;
X    }
X    if (pipe(fildes2)) {
X	fprintf(stderr, "cannot create pipes for %s command\n", path);
X	status = 1;
X    }
X    if (!fork()) {
X	close(fildes1[1]);
X	close(fildes2[0]);
X	close(0);
X	dup(fildes1[0]);
X	close(fildes1[0]);
X	close(1);
X	dup(fildes2[1]);
X	close(fildes2[1]);
X	(void) execlp(path, command, (char *) NULL);
X	perror(path);
X	_exit(1);
X    }
X    else {
X	close(fildes1[0]);
X	close(fildes2[1]);
X	*pin = fdopen(fildes1[1], "w");
X	*pout = fdopen(fildes2[0], "r");
X	if (!(*pin) || !(*pout)) status = 1;
X    }
X    return(status);
X}
/
echo 'x - archnews.1'
sed 's/^X//' > archnews.1 << '/'
X.TH ARCHNEWS 1 local
X.SH NAME
Xarchnews \- archive expired news to a floppy
X.SH SYNOPSIS
X.B archnews
Xfloppy directory [ summary file ]
X.SH DESCRIPTION
X.I Archnews
Xis a program that takes news which has been expired by the news expire utility
Xand archives it to a floppy disk.  It should be invoked in the root directory
Xof the tree which is desired to be archived. 
X.I Archnews
Xif no summary file is specified will print to standard output the subject
Xand summary of the files which
Xit archives.  The summary file gives an easy index to the floppy archives.
XThe files are
Xstored after compression via the news compress utility
Xin the same tree structure as the tree being archived.
X.pp
XWhen the floppy device gets full
X.I archnews
Xwill fail and may simply be reissued to continue archiving the remaining
Xfiles.
X.SH AUTHOR
XDavid Albrecht
/
echo 'Part 01 of ../archnews.post1 complete.'
exit