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Added OpenBSD's unveil() and pledge() support.

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This commit is contained in:
Andrew Alderwick 2023-01-13 13:25:14 +01:00 committed by default
parent a99f742d73
commit 3cb1725225
2 changed files with 42 additions and 16 deletions
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42
activitypub.c
View File

@ -13,6 +13,8 @@
#include "snac.h" #include "snac.h"
#include <sys/wait.h>
const char *public_address = "https:/" "/www.w3.org/ns/activitystreams#Public"; const char *public_address = "https:/" "/www.w3.org/ns/activitystreams#Public";
int activitypub_request(snac *snac, char *url, d_char **data) int activitypub_request(snac *snac, char *url, d_char **data)
@ -999,6 +1001,35 @@ int process_message(snac *snac, char *msg, char *req)
} }
int send_email(char *msg)
/* invoke sendmail with email headers and body in msg */
{
FILE *f;
int status;
int fds[2];
pid_t pid;
if (pipe(fds) == -1) return -1;
pid = vfork();
if (pid == -1) return -1;
else if (pid == 0) {
dup2(fds[0], 0);
close(fds[0]);
close(fds[1]);
execl("/usr/sbin/sendmail", "sendmail", "-t", (char *) NULL);
_exit(1);
}
close(fds[0]);
if ((f = fdopen(fds[1], "w")) == NULL) {
close(fds[1]);
return -1;
}
fprintf(f, "%s\n", msg);
fclose(f);
if (waitpid(pid, &status, 0) == -1) return -1;
return status;
}
void process_queue(snac *snac) void process_queue(snac *snac)
/* processes the queue */ /* processes the queue */
{ {
@ -1085,17 +1116,8 @@ void process_queue(snac *snac)
/* send this email */ /* send this email */
char *msg = xs_dict_get(q_item, "message"); char *msg = xs_dict_get(q_item, "message");
int retries = xs_number_get(xs_dict_get(q_item, "retries")); int retries = xs_number_get(xs_dict_get(q_item, "retries"));
FILE *f;
int ok = 0;
if ((f = popen("/usr/sbin/sendmail -t", "w")) != NULL) { if (!send_email(msg))
fprintf(f, "%s\n", msg);
if (pclose(f) != -1)
ok = 1;
}
if (ok)
snac_debug(snac, 1, xs_fmt("email message sent")); snac_debug(snac, 1, xs_fmt("email message sent"));
else { else {
if (retries > queue_retry_max) if (retries > queue_retry_max)

12
data.c
View File

@ -86,15 +86,19 @@ int srv_open(char *basedir, int auto_upgrade)
if (error != NULL) if (error != NULL)
srv_log(error); srv_log(error);
/* disabled temporarily; messages can't be sent (libcurl issue?) */
#if 0
#ifdef __OpenBSD__ #ifdef __OpenBSD__
srv_debug(2, xs_fmt("Calling unveil()")); srv_debug(2, xs_fmt("Calling unveil()"));
unveil(basedir, "rwc"); unveil(basedir, "rwc");
unveil("/usr/sbin", "x"); unveil("/usr/sbin/sendmail", "x");
unveil("/etc/resolv.conf", "r");
unveil("/etc/hosts", "r");
unveil("/etc/ssl/openssl.cnf", "r");
unveil("/etc/ssl/cert.pem", "r");
unveil("/usr/share/zoneinfo", "r");
unveil(NULL, NULL); unveil(NULL, NULL);
srv_debug(2, xs_fmt("Calling pledge()"));
pledge("stdio rpath wpath cpath flock inet proc exec dns", NULL);
#endif /* __OpenBSD__ */ #endif /* __OpenBSD__ */
#endif
return ret; return ret;
} }