-/* Gateway kernel
+/* Gateway kernel - User Request Processor
* Europagate, 1995
*
* $Log: urp.c,v $
- * Revision 1.18 1995/03/01 14:32:26 adam
+ * Revision 1.25 1995/04/17 09:34:33 adam
+ * Timeout (idletime) adjustable. Minor changes in kernel.
+ *
+ * Revision 1.24 1995/03/28 11:42:35 adam
+ * First use of string-queue utility.
+ *
+ * Revision 1.23 1995/03/28 08:01:28 adam
+ * FIFO existence is used to test for a running kernel.
+ *
+ * Revision 1.22 1995/03/27 12:51:05 adam
+ * New log level in use: GW_LOG_ERRNO.
+ *
+ * Revision 1.21 1995/03/27 08:24:04 adam
+ * First use of gip interface and gw-db.
+ * First work on eti program.
+ *
+ * Revision 1.20 1995/03/03 17:19:17 adam
+ * Smarter presentation. Bug fix in email header interpretation.
+ *
+ * Revision 1.19 1995/03/02 09:32:11 adam
+ * New presentation formats. f0=full, f1=brief, f2=mid
+ *
+ * Revision 1.18 1995/03/01 14:32:26 adam
* Better diagnostics. Default is, that only one database selected when
* several are known.
*
#include <unistd.h>
#include <fcntl.h>
+#include <ttyemit.h>
+#include <strqueue.h>
#include "kernel.h"
-#define LINE_MAX 256
+static char line_buf[LINE_MAX+1];
static void put_esc_str (const char *s)
{
- int escape_flag = 0;
while (*s)
+ tty_emit (*s++);
+}
+
+int lgets (char *buf, int max, int fd)
+{
+ int r, no = 0;
+
+ --max;
+ while (no <= max)
{
- if (*s == '\\' && s[1])
- {
- switch (*++s)
- {
- case 'n':
- fputc ('\n', reply_fd);
- break;
- case 't':
- fputc ('\t', reply_fd);
- break;
- default:
- fputc (*s, reply_fd);
- break;
- }
- escape_flag = 1;
- }
- else
- {
- if (*s != ' ' || !escape_flag)
- fputc (*s, reply_fd);
- escape_flag = 0;
- }
- s++;
+ if ((r=read (fd, buf+no, 1)) != 1)
+ {
+ if (r == -1)
+ gw_log (GW_LOG_WARN|GW_LOG_ERRNO, KERNEL_LOG, "read fail");
+ buf[no] = '\0';
+ return 0;
+ }
+ if (buf[no] == 1)
+ return 0;
+ if (buf[no++] == '\n')
+ break;
}
+ buf[no] = '\0';
+ return 1;
}
static int reopen_target (void)
return 0;
}
-static char line_buf[LINE_MAX+1];
static struct command_word {
char *default_value;
{ "status", "status" },
{ "cancel", "cancel" },
{ "target", "target" },
+{ "stop", "stop" },
{ NULL, NULL }
};
return NULL;
}
-static int email_header (FILE *inf, char *from_str, char *subject_str)
+static int email_header (struct str_queue *sq,
+ char *from_str, char *subject_str)
{
*from_str = '\0';
- *subject_str = '\0';
- while (fgets (line_buf, LINE_MAX, inf))
+ *subject_str = '\0';
+ while (str_queue_deq (sq, line_buf, LINE_MAX))
{
if (line_buf[0] == '\n')
return 0;
- if (strncmp (line_buf, "From ", 5) == 0)
+ if (memcmp (line_buf, "From ", 5) == 0)
sscanf (line_buf+4, "%s", from_str);
- if (strncmp (line_buf, "Subject: ", 9) == 0 &&
+ if (memcmp (line_buf, "Subject: ", 9) == 0 &&
sscanf (line_buf+9, "%s", subject_str+1) == 1)
strcpy (subject_str, line_buf+9);
}
static int exec_help (struct ccl_token *list)
{
+ static char *sep = "-------------------------------\\n";
help_general ();
-#if 0
+#if 1
+ put_esc_str (sep);
put_esc_str (gw_res_get (info.kernel_res, "gw.help.target",
"target <name> - selects a given target\n"));
+ put_esc_str (sep);
put_esc_str (gw_res_get (info.kernel_res, "gw.help.base",
"base <base>.. - selects databases\n"));
+ put_esc_str (sep);
put_esc_str (gw_res_get (info.kernel_res, "gw.help.find",
"find <query> - performs a search request\n"));
+ put_esc_str (sep);
put_esc_str (gw_res_get (info.kernel_res, "gw.help.show",
"show <spec> - retrieves and displays "
"records\n"));
- put_esc_str (gw_res_get (info.kernel_res, "gw.help.help",
- "help - displays help\n"));
#endif
return 0;
}
const struct zass_presentent *zp;
int len;
int max_number;
- char format_str[40];
+ char format_str[16];
max_number = atoi (gw_res_get (info.kernel_res, "gw.max.show",
"200"));
record_log_name );
record_log_fd = open (path, O_WRONLY|O_CREAT|O_APPEND, 0666);
if (record_log_fd == -1)
- gw_log (GW_LOG_WARN, "Cannot open %s", path);
+ gw_log (GW_LOG_WARN|GW_LOG_ERRNO, "Cannot open %s", path);
}
fprintf (reply_fd, gw_res_get (info.kernel_res,
"gw.msg.records",
if (format_token)
{
len = format_token->len;
+ if (len >= sizeof(format_str))
+ len = sizeof(format_str)-1;
memcpy (format_str, format_token->name, len);
format_str[len] = '\0';
}
if (info.fml && format_token &&
- (!strcmp (format_str, "0") || !strcmp (format_str, "1")))
+ (!strcmp (format_str, "0") || !strcmp (format_str, "1")
+ || !strcmp(format_str, "2")))
{
arg_ar[0] = "\\f";
arg_ar[1] = format_str;
return 0;
}
-int urp (FILE *inf)
+int urp_start (int continuation, struct str_queue *queue)
{
- char from_str[128];
char subject_str[128];
- int command_no = 0;
- char *reply_fname = NULL;
- if (email_header (inf, from_str, subject_str))
+ info.command_no = 0;
+ info.reply_fname = NULL;
+
+ if (email_header (queue, info.from_str, subject_str))
{
gw_log (GW_LOG_WARN, KERNEL_LOG, "No message body");
return -1;
}
- if (*from_str)
+ tty_init (stdout, 40, 70);
+ if (*info.from_str)
{
- reply_fname = tempnam (gw_res_get (info.kernel_res,
+ info.reply_fname = tempnam (gw_res_get (info.kernel_res,
"gw.reply.tmp.dir", NULL),
gw_res_get (info.kernel_res,
"gw.reply.tmp.prefix", "gwr"));
- reply_fd = fopen (reply_fname, "w");
+ reply_fd = fopen (info.reply_fname, "w");
if (!reply_fd)
{
- gw_log (GW_LOG_FATAL, KERNEL_LOG, "Cannot create %s",
- reply_fname);
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, KERNEL_LOG, "Cannot create %s",
+ info.reply_fname);
return -1;
}
+ tty_init (reply_fd, 0, 0);
fprintf (reply_fd, "From: %s\n",
gw_res_get (info.kernel_res, "gw.msg.from","Email-gateway"));
fprintf (reply_fd, "Subject: ");
"gw.msg.subject",
"Your Query"));
fprintf (reply_fd, "\n");
- gw_log (GW_LOG_ACCT, KERNEL_LOG, "User start %s", from_str);
+ gw_log (GW_LOG_ACCT, KERNEL_LOG, "User start %s", info.from_str);
}
else
gw_log (GW_LOG_WARN, KERNEL_LOG, "No From in email header");
fprintf (reply_fd, "%s\n", gw_res_get (info.kernel_res, "gw.msg.greeting",
"Email->Z39.50 gateway"));
- while (fgets (line_buf, LINE_MAX, inf))
- {
- char *cp;
+ if (continuation)
+ fprintf (reply_fd, "%s\n", gw_res_get (info.kernel_res,
+ "gw.msg.cont",
+ "Continued..."));
+ ccl_token_and = gw_res_get (info.kernel_res, "ccl.token.and", "and");
+ ccl_token_or = gw_res_get (info.kernel_res, "ccl.token.or", "or");
+ ccl_token_not = gw_res_get (info.kernel_res, "ccl.token.not", "not");
+ ccl_token_set = gw_res_get (info.kernel_res, "ccl.token.set", "set");
+ return 0;
+}
+
+int urp_command (struct str_queue *queue)
+{
+ char *cp;
+ while (str_queue_deq (queue, line_buf, LINE_MAX))
+ {
if (line_buf[0] == '\n')
- break;
+ if (info.command_no)
+ {
+ while (str_queue_deq (queue, 0, 0))
+ ;
+ break;
+ }
+ else
+ continue;
if ((cp = strchr (line_buf, '\n')))
*cp = '\0';
gw_log (GW_LOG_ACCT, KERNEL_LOG, "cmd: %s", line_buf);
- ccl_token_and = gw_res_get (info.kernel_res, "ccl.token.and", "and");
- ccl_token_or = gw_res_get (info.kernel_res, "ccl.token.or", "or");
- ccl_token_not = gw_res_get (info.kernel_res, "ccl.token.not", "not");
- ccl_token_set = gw_res_get (info.kernel_res, "ccl.token.set", "set");
if (isalpha (line_buf[0]))
exec_command (line_buf);
- command_no++;
+ info.command_no++;
}
- if (!command_no)
+ return 0;
+}
+
+void urp_end (void)
+{
+ if (!info.command_no)
{
- fprintf (reply_fd, "%s\n", gw_res_get (info.kernel_res,
- "gw.err.nullbody",
- "No body"));
+ fprintf (reply_fd, "%s\n",
+ gw_res_get (info.kernel_res, "gw.err.nullbody", "No body"));
help_general ();
}
- if (*from_str)
+ if (*info.from_str)
{
const char *mta;
char cmd[256];
int mta_code;
- assert (reply_fname);
+ assert (info.reply_fname);
fclose (reply_fd);
reply_fd = stdout;
mta = gw_res_get (info.kernel_res, "gw.reply.mta",
- "/usr/lib/sendmail");
- sprintf (cmd, "%s %s < %s", mta, from_str, reply_fname);
+ "/usr/lib/sendmail");
+ sprintf (cmd, "%s %s < %s", mta, info.from_str, info.reply_fname);
mta_code = system (cmd);
if (mta_code)
- gw_log (GW_LOG_FATAL, KERNEL_LOG, "Reply '%s' got exit code %d",
- cmd, mta_code);
- unlink (reply_fname);
- gw_log (GW_LOG_ACCT, KERNEL_LOG, "User end %s", from_str);
+ gw_log (GW_LOG_FATAL, KERNEL_LOG,
+ "Reply '%s' got exit code %d", cmd, mta_code);
+ else
+ unlink (info.reply_fname);
+ gw_log (GW_LOG_ACCT, KERNEL_LOG, "User end %s", info.from_str);
}
- return 0;
}
+
projects / egate.git / blobdiff