Add SERVER_LISTEN_NAME feature. - geomyidae - A small C-based gopherd.
HTML git clone git://bitreich.org/geomyidae/ git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/geomyidae/
DIR Log
DIR Files
DIR Refs
DIR Tags
DIR README
DIR LICENSE
---
DIR commit 9ffef532d812330c00bd1043c884f9e685787018
DIR parent 8b9629bd2a0dae917cbe7e7db44417afc28064f6
HTML Author: Christoph Lohmann <20h@r-36.net>
Date: Wed, 26 Oct 2022 19:03:26 +0200
Add SERVER_LISTEN_NAME feature.
Diffstat:
M geomyidae.8 | 1 +
M handlr.c | 17 ++++++++++-------
M handlr.h | 19 +++++++++++++------
M ind.c | 3 ++-
M ind.h | 4 ++--
M main.c | 27 +++++++++++++++++++--------
6 files changed, 47 insertions(+), 24 deletions(-)
---
DIR diff --git a/geomyidae.8 b/geomyidae.8
@@ -381,6 +381,7 @@ Additionally to the above arguments several environment variables are set.
.Dl SCRIPT_NAME = script which is executed
.Dl SERVER_NAME = server's hostname
.Dl SERVER_PORT = server's port
+.Dl SERVER_LISTEN_NAME = ip the server received the connection on
.Dl SERVER_PROTOCOL = `gopher/1.0'
.Dl SERVER_SOFTWARE = `geomyidae'
.Dl X_GOPHER_SEARCH = search (See above.)
DIR diff --git a/handlr.c b/handlr.c
@@ -23,7 +23,7 @@
void
handledir(int sock, char *path, char *port, char *base, char *args,
- char *sear, char *ohost, char *chost, int istls)
+ char *sear, char *ohost, char *chost, char *bhost, int istls)
{
char *pa, *file, *e, *par, *b;
struct dirent **dirent;
@@ -33,6 +33,7 @@ handledir(int sock, char *path, char *port, char *base, char *args,
USED(args);
USED(sear);
+ USED(bhost);
pa = xstrdup(path);
e = pa + strlen(pa) - 1;
@@ -85,13 +86,14 @@ handledir(int sock, char *path, char *port, char *base, char *args,
void
handlegph(int sock, char *file, char *port, char *base, char *args,
- char *sear, char *ohost, char *chost, int istls)
+ char *sear, char *ohost, char *chost, char *bhost, int istls)
{
Indexs *act;
int i, ret = 0;
USED(args);
USED(sear);
+ USED(bhost);
act = scanfile(file);
if (act != NULL) {
@@ -108,7 +110,7 @@ handlegph(int sock, char *file, char *port, char *base, char *args,
void
handlebin(int sock, char *file, char *port, char *base, char *args,
- char *sear, char *ohost, char *chost, int istls)
+ char *sear, char *ohost, char *chost, char *bhost, int istls)
{
int fd;
@@ -117,6 +119,7 @@ handlebin(int sock, char *file, char *port, char *base, char *args,
USED(args);
USED(sear);
USED(ohost);
+ USED(bhost);
fd = open(file, O_RDONLY);
if (fd >= 0) {
@@ -128,7 +131,7 @@ handlebin(int sock, char *file, char *port, char *base, char *args,
void
handlecgi(int sock, char *file, char *port, char *base, char *args,
- char *sear, char *ohost, char *chost, int istls)
+ char *sear, char *ohost, char *chost, char *bhost, int istls)
{
char *p, *path;
@@ -164,7 +167,7 @@ handlecgi(int sock, char *file, char *port, char *base, char *args,
}
setcgienviron(p, file, port, base, args, sear, ohost, chost,
- istls);
+ bhost, istls);
if (execl(file, p, sear, args, ohost, port,
(char *)NULL) == -1) {
@@ -183,7 +186,7 @@ handlecgi(int sock, char *file, char *port, char *base, char *args,
void
handledcgi(int sock, char *file, char *port, char *base, char *args,
- char *sear, char *ohost, char *chost, int istls)
+ char *sear, char *ohost, char *chost, char *bhost, int istls)
{
FILE *fp;
char *p, *path, *ln = NULL;
@@ -225,7 +228,7 @@ handledcgi(int sock, char *file, char *port, char *base, char *args,
}
setcgienviron(p, file, port, base, args, sear, ohost, chost,
- istls);
+ bhost, istls);
if (execl(file, p, sear, args, ohost, port,
(char *)NULL) == -1) {
DIR diff --git a/handlr.h b/handlr.h
@@ -17,20 +17,27 @@
* sear .... search part of request (»selector\tsearch\r\n«)
* ohost ... host of geomiydae (See -h in geomyidae(8))
* chost ... IP of the client sending a request
+ * bhost ... server IP the server received the connection to
* istls ... set to 1, if TLS was used for thr request
*/
void handledir(int sock, char *path, char *port, char *base, char *args,
- char *sear, char *ohost, char *chost, int istls);
+ char *sear, char *ohost, char *chost, char *bhost,
+ int istls);
void handlegph(int sock, char *file, char *port, char *base, char *args,
- char *sear, char *ohost, char *chost, int istls);
+ char *sear, char *ohost, char *chost, char *bhost,
+ int istls);
void handlebin(int sock, char *file, char *port, char *base, char *args,
- char *sear, char *ohost, char *chost, int istls);
+ char *sear, char *ohost, char *chost, char *bhost,
+ int istls);
void handletxt(int sock, char *file, char *port, char *base, char *args,
- char *sear, char *ohost, char *chost, int istls);
+ char *sear, char *ohost, char *chost, char *bhost,
+ int istls);
void handlecgi(int sock, char *file, char *port, char *base, char *args,
- char *sear, char *ohost, char *chost, int istls);
+ char *sear, char *ohost, char *chost, char *bhost,
+ int istls);
void handledcgi(int sock, char *file, char *port, char *base, char *args,
- char *sear, char *ohost, char *chost, int istls);
+ char *sear, char *ohost, char *chost, char *bhost,
+ int istls);
#endif
DIR diff --git a/ind.c b/ind.c
@@ -531,7 +531,7 @@ reverselookup(char *host)
void
setcgienviron(char *file, char *path, char *port, char *base, char *args,
- char *sear, char *ohost, char *chost, int istls)
+ char *sear, char *ohost, char *chost, char *bhost, int istls)
{
/*
* TODO: Clean environment from possible unsafe environment variables.
@@ -569,6 +569,7 @@ setcgienviron(char *file, char *path, char *port, char *base, char *args,
setenv("SCRIPT_NAME", file, 1);
setenv("SERVER_NAME", ohost, 1);
setenv("SERVER_PORT", port, 1);
+ setenv("SERVER_LISTEN_NAME", bhost, 1);
setenv("SERVER_PROTOCOL", "gopher/1.0", 1);
setenv("SERVER_SOFTWARE", "geomyidae", 1);
DIR diff --git a/ind.h b/ind.h
@@ -27,7 +27,7 @@ struct filetype {
char *end;
char *type;
void (* f)(int, char *, char *, char *, char *, char *, char *,
- char *, int);
+ char *, char *, int);
};
filetype *gettype(char *filename);
@@ -49,7 +49,7 @@ char *smprintf(char *fmt, ...);
char *reverselookup(char *host);
void setcgienviron(char *file, char *path, char *port, char *base,
char *args, char *sear, char *ohost, char *chost,
- int istls);
+ char *bhost, int istls);
char *humansize(off_t n);
char *humantime(const time_t *clock);
DIR diff --git a/main.c b/main.c
@@ -133,8 +133,8 @@ logentry(char *host, char *port, char *qry, char *status)
void
handlerequest(int sock, char *req, int rlen, char *base, char *ohost,
- char *port, char *clienth, char *clientp, int nocgi,
- int istls)
+ char *port, char *clienth, char *clientp, char *serverh,
+ char *serverp, int nocgi, int istls)
{
struct stat dir;
char recvc[1025], recvb[1025], path[1025], args[1025], argsc[1025],
@@ -367,7 +367,7 @@ handlerequest(int sock, char *req, int rlen, char *base, char *ohost,
logentry(clienth, clientp, recvc, "nocgi error");
} else {
type->f(sock, path, port, base, args, sear, ohost,
- clienth, istls);
+ clienth, serverh, istls);
}
} else {
/*
@@ -376,7 +376,7 @@ handlerequest(int sock, char *req, int rlen, char *base, char *ohost,
*/
if (!pathfallthrough && S_ISDIR(dir.st_mode)) {
handledir(sock, path, port, base, args, sear, ohost,
- clienth, istls);
+ clienth, serverh, istls);
if (loglvl & DIRS) {
logentry(clienth, clientp, recvc,
"dir listing");
@@ -540,9 +540,9 @@ int
main(int argc, char *argv[])
{
struct addrinfo hints;
- struct sockaddr_storage clt;
+ struct sockaddr_storage clt, slt;
struct linger lingerie;
- socklen_t cltlen;
+ socklen_t cltlen, sltlen;
int sock, dofork = 1, inetf = AF_UNSPEC, usechroot = 0,
nocgi = 0, errno_save, nbindips = 0, i, j,
nlfdret, *lfdret, listfd, maxlfd, istls = 0,
@@ -560,7 +560,7 @@ main(int argc, char *argv[])
#ifdef ENABLE_TLS
*certfile = NULL, *keyfile = NULL,
#endif /* ENABLE_TLS */
- byte0, recvb[1025];
+ byte0, recvb[1025], serverh[NI_MAXHOST], serverp[NI_MAXSERV];
struct passwd *us = NULL;
struct group *gr = NULL;
#ifdef ENABLE_TLS
@@ -858,6 +858,16 @@ main(int argc, char *argv[])
}
}
+ sltlen = sizeof(slt);
+ serverh[0] = serverp[0] = '\0';
+ if (getsockname(sock, (struct sockaddr *)&slt, &sltlen) == 0) {
+ getnameinfo((struct sockaddr *)&slt, sltlen, serverh,
+ sizeof(serverh), serverp, sizeof(serverp),
+ NI_NUMERICHOST|NI_NUMERICSERV);
+ }
+ if (!strncmp(serverh, "::ffff:", 7))
+ memmove(serverh, serverh+7, strlen(serverh)-6);
+
if (getnameinfo((struct sockaddr *)&clt, cltlen, clienth,
sizeof(clienth), clientp, sizeof(clientp),
NI_NUMERICHOST|NI_NUMERICSERV)) {
@@ -996,7 +1006,8 @@ main(int argc, char *argv[])
handlerequest(sock, recvb, rlen, base,
ohost, sport, clienth,
- clientp, nocgi, istls);
+ clientp, serverh, serverp,
+ nocgi, istls);
if (!istls) {
/*