plugin.h header file. For the text of this file, see "The plugin.h Header File."
To run this program from the command line, use this code:
post -f sender -n newsserver [-h header file | -s subject ]
Bracketed arguments are optional.
-b body file -g newsgroup [-g newsgroup]\n
/* post.c. This sample program posts a message */
/* to an NNTP server using system PostArticle APIs. */
#include <stdio.h>
#include "plugin.h"
#define FALSE 0
#define TRUE 1
#define SMTP_LINELEN 1024
#define NL "\n"
/* Define global variables for getopt function. */
int opterr = 1;
int optind = 1;
int optopt = 0;
char *optarg;
static void
usage()
{
fprintf(stderr, "Usage: post -f sender -n newsserver [-h header file | -s subject ] -b body file -g newsgroup [-g newsgroup]\n");
}
main (int ac, char **av) {
int i;
char *rcpt;
char *sznewsSvr=NULL;
char *szBody=NULL;
char *szHeader=NULL;
char szTempHead[SMTP_LINELEN];
char *szSender=NULL;
char *szSubject=NULL;
char **pszAddr=NULL,**rgAddr=NULL;
char fFirst=FALSE;
FILE *pF1 = NULL;
Message *pMessage;
Recipient *pRecipient;
int result;
while ((i = getopt(ac, av, "s:n:b:h:g:f:")) != EOF)
switch (i) {
case 'n':
sznewsSvr = optarg;
break;
case 'b':
szBody= optarg;
break;
case 'h':
szHeader = optarg;
break;
case 'f':
szSender=optarg;
break;
case 'g':
if(pszAddr==NULL) {
rgAddr = pszAddr= malloc(sizeof (char *) );
}
*pszAddr= optarg;
rgAddr=realloc(rgAddr,
((pszAddr-rgAddr)+2) * sizeof (char *));
if(rgAddr==NULL)
{
fprintf(stderr, "Couldn't allocate memory\n");
exit(1);
}
*(++pszAddr)=NULL;
break;
case 's':
szSubject=optarg;
break;
case '?':
usage();
exit(1);
}
ac -= optind;
av += optind;
if(szBody == NULL || ( szHeader == NULL && szSubject==NULL) || szSender == NULL || sznewsSvr == NULL || pszAddr == NULL)
{
usage();
exit(1);
}
rcpt = av[0];
if(szHeader==NULL)
{
/* Create a unique filename. */
#ifndef WINNT
/* Use Process ID for uniqueness. */
sprintf(szTempHead,"/tmp/news.tmp.%d",getpid());
pF1 = fopen (szTempHead, "w");
szHeader=szTempHead;
#else
/* Similar to previous sprintf call, */
/* but, in this case, call _getpid() */
/* and do not include a /tmp/ path. */
sprintf(szTempHead,"news.tmp.%d",_getpid());
pF1 = fopen (szTempHead, "w+b");
szHeader=szTempHead;
#endif
/* Produces a new header file. */
if(pF1==NULL)
{
fprintf(stderr, "Couldn't create temp header file\n");
exit(1);
}
if (fprintf(pF1, "Subject: %s\r\n", szSubject) < 0) {
goto FileError;
}
/* Followups, x-headers, and other items, could go here.*/
#ifdef NEVER
if (fprintf(pF1, "From: <%s>\r\n", szSender) < 0) {
goto FileError;
}
pszAddr=rgAddr;
if (fprintf(pF1, "To: ") < 0) {
goto FileError;
}
while(*pszAddr)
{
if (fprintf(pF1, (fFirst ? ", %s" : "%s") , *pszAddr) < 0) { /* Comma trickiness. */
goto FileError;
}
fFirst=TRUE;
pszAddr++;
}
if (fprintf(pF1,"\r\n") < 0) {
goto FileError;
}
fflush(pF1);
#endif NEVER
if(( result= fclose(pF1)) != 0)
{
fprintf(stderr, "Couldn't close temp header file\n");
exit(1);
}
}
if((pMessage = NewMessage(szBody,szHeader,szSender))==NULL)
{
fprintf(stderr, "Couldn't create message\n");
exit(1);
}
pszAddr=rgAddr;
while(*pszAddr)
{
if((pRecipient=NewRecipient(*pszAddr,ADDRTYPE_NEWS))
== NULL)
{
fprintf(stderr, "Couldn't create 'address'\n");
exit(1);
}
/* Add a recipient */
AddRecipient (pMessage,pRecipient);
pszAddr++;
}
PostArticle(sznewsSvr, pMessage); /* Call the simple send API. */
FileError:
if(pF1)
{
if(( result= remove(szHeader)) != 0)
{
fprintf(stderr, "Couldn't delete
temp header file\n");
exit(1);
}
}
exit(0);
}
/* This comes from the AT&T public-domain getopt published in */
/* mod.sources (that is, comp.sources.unix before Usenet renaming).*/
#define ERR(s, c) \
if (opterr) { \
char buff[2]; \
int fd = _fileno (stderr); \
buff[0] = c; buff[1] = '\n'; \
(void)write(fd, av[0], strlen(av[0])); \
(void)write(fd, s, strlen(s)); \
(void)write(fd, buff, 2); \
}
/* Return options and their values from the command line. */
int
getopt(ac, av, opts)
int ac;
char *av[];
char *opts;
{
extern char *strchr();
static int i = 1;
char *p;
/* Move to next value from argv?. */
if (i == 1) {
if (optind >= ac || av[optind][0] != '-' ||
av[optind][1]== '\0')
return EOF;
if (strcmp(av[optind], "--") == 0) {
optind++;
return EOF;
}
}
/* Get next option character. */
if ((optopt = av[optind][i]) == ':'
|| (p = strchr(opts, optopt)) == NULL) {
ERR(": illegal option -- ", optopt);
if (av[optind][++i] == '\0') {
optind++;
i = 1;
}
return '?';
}
/* Snarf argument? */
if (*++p == ':') {
if (av[optind][i + 1] != '\0')
optarg = &av[optind++][i + 1];
else {
if (++optind >= ac) {
ERR(": option requires an argument --
", optopt);
i = 1;
return '?';
}
optarg = av[optind++];
}
i = 1;
}
else {
if (av[optind][++i] == '\0') {
i = 1;
optind++;
}
optarg = NULL;
}
return optopt;
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Last Updated: 10/01/97 14:01:18