*/
#include <errno.h>
+#include <limits.h>
#include <stdbool.h>
+#include <syslog.h>
#include <unistd.h>
#include "job.h"
#include "postfix.h"
+#include "buffer.h"
+#include "tokens.h"
struct jpriv_t {
buffer_t ibuf;
buffer_t obuf;
};
-void postfix_start(job_t *job, query_t *query)
+static jpriv_t *postfix_jpriv_init(jpriv_t *jp)
{
+ buffer_init(&jp->ibuf);
+ buffer_init(&jp->obuf);
+ return jp;
}
+static void postfix_jpriv_wipe(jpriv_t *jp)
+{
+ buffer_wipe(&jp->ibuf);
+ buffer_wipe(&jp->obuf);
+}
+DO_NEW(jpriv_t, postfix_jpriv);
+DO_DELETE(jpriv_t, postfix_jpriv);
-void postfix_stop(job_t *job)
+static void postfix_stop(job_t *job)
{
+ postfix_jpriv_delete(&job->jdata);
}
-void postfix_process(job_t *job)
+static int postfix_parsejob(job_t *job)
{
- if (job->state & JOB_LISTEN) {
- /* TODO check return code */
- job_accept(job, JOB_READ);
+ const char *p = skipspaces(job->jdata->ibuf.data);
+
+ for (;;) {
+ const char *k, *v;
+ int klen, vlen;
+
+ while (*p == ' ' || *p == '\t')
+ p++;
+ p = strchrnul(k = p, '=');
+ if (!*p)
+ return -1;
+ for (klen = p - k; k[klen] == ' ' || k[klen] == '\t'; klen--);
+ p += 1; /* skip = */
+
+ while (*p == ' ' || *p == '\t')
+ p++;
+ p = strstr(v = p, "\r\n");
+ if (!p)
+ return -1;
+ for (vlen = p - v; v[vlen] == ' ' || v[vlen] == '\t'; vlen--);
+ p += 2; /* skip \r\n */
+
+ /* do sth with (k,v) */
+
+ assert (p[0] && p[1]);
+ if (p[0] == '\r' && p[1] == '\n')
+ break;
}
- if (job->state & JOB_WRITE) {
- int nbwritten;
+ return -1;
+}
- nbwritten = write(job->fd, job->jdata->obuf.data, job->jdata->obuf.len);
- if (nbwritten < 0) {
- job->error = errno != EINTR && errno != EAGAIN;
+static void postfix_process(job_t *job)
+{
+ int nb;
+
+ switch (job->mode) {
+ case JOB_LISTEN:
+ if ((job = job_accept(job, JOB_READ))) {
+ job->jdata = postfix_jpriv_new();
+ job->process = &postfix_process;
+ job->stop = &postfix_stop;
+ }
+ return;
+
+ case JOB_WRITE:
+ nb = write(job->fd, job->jdata->obuf.data, job->jdata->obuf.len);
+ if (nb < 0) {
+ if ((job->error = errno != EINTR && errno != EAGAIN)) {
+ syslog(LOG_ERR, "unexpected problem on the socket: %m");
+ }
return;
}
- buffer_consume(&job->jdata->obuf, nbwritten);
- }
+ buffer_consume(&job->jdata->obuf, nb);
+ if (job->jdata->obuf.len)
+ return;
- if (job->state & JOB_READ) {
- int nbread;
+ job_update_mode(job, JOB_READ);
- nbread = buffer_read(&job->jdata->ibuf, job->fd, -1);
- if (nbread < 0) {
- job->error = errno != EINTR && errno != EAGAIN;
+ /* fall through */
+
+ case JOB_READ:
+ nb = buffer_read(&job->jdata->ibuf, job->fd, -1);
+ if (nb < 0) {
+ if ((job->error = errno != EINTR && errno != EAGAIN)) {
+ syslog(LOG_ERR, "unexpected problem on the socket: %m");
+ }
return;
}
- if (nbread == 0) {
+ if (nb == 0) {
+ syslog(LOG_ERR, "unexpected eof");
job->error = true;
return;
}
- if (!strstr(job->jdata->ibuf.data, "\r\n\r\n"))
+ if (!strstr(skipspaces(job->jdata->ibuf.data), "\r\n\r\n")) {
+ if (job->jdata->ibuf.len > SHRT_MAX) {
+ syslog(LOG_ERR, "too much data without CRLFCRLF");
+ job->error = true;
+ }
+ return;
+ }
+
+ if (postfix_parsejob(job) < 0) {
+ syslog(LOG_ERR, "could not parse postfix request");
+ job->error = true;
return;
+ }
+
+ job_update_mode(job, JOB_IDLE);
- job->state &= ~JOB_READ;
+ /* TODO: run the scenario */
+ return;
- /* TODO: do the parse */
+ default:
+ job->error = true;
+ return;
}
}