GopherProxy

	We do not need the realpath. Only serve in basepath. - geomyidae - a small C-ba…
	git clone git://git.codemadness.org/geomyidae
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	---
	commit 9884d6e830dba5751c5363086e74b5f9a9c1691d
	parent cdf260787abd32506e151744c411d0e1057757d8
	Author: Christoph Lohmann <[email protected]>
	Date: Wed, 23 Aug 2023 14:49:23 +0200

	We do not need the realpath. Only serve in basepath.

	Diffstat:
	M main.c \| 49 +++++++++++++----------------…

	1 file changed, 20 insertions(+), 29 deletions(-)
	---
	diff --git a/main.c b/main.c
	@@ -138,7 +138,7 @@ handlerequest(int sock, char req, int rlen, char base, ch…
	char *serverp, int nocgi, int istls)
	{
	struct stat dir;
	- char recvc[1025], recvb[1025], path[PATH_MAX+1], rpath[PATH_MAX+1], ar…
	+ char recvc[1025], recvb[1025], path[PATH_MAX+1], args[1025],
	argsc[1025], traverse[1025], traversec[1025],
	sear, sep, recvbp, c;
	int len = 0, fd, i, maxrecv, pathfallthrough = 0;
	@@ -190,15 +190,13 @@ handlerequest(int sock, char req, int rlen, char base, …
	if (strchr(recvb, '/'))
	goto dothegopher;
	if (snprintf(path, sizeof(path), "%s/%s", base, recvb) <= size…
	- if (realpath(path, (char *)rpath)) {
	- if (stat(rpath, &dir) == 0) {
	- if (loglvl & FILES)
	- logentry(clienth, clientp, rec…
	+ if (stat(path, &dir) == 0) {
	+ if (loglvl & FILES)
	+ logentry(clienth, clientp, recvc, "com…

	- handlecgi(sock, rpath, port, base, "",…
	- clienth, serverh, istls, req, …
	- return;
	- }
	+ handlecgi(sock, path, port, base, "", "", ohos…
	+ clienth, serverh, istls, req, "");
	+ return;
	}
	}
	}
	@@ -325,14 +323,7 @@ dothegopher:
	}
	}

	- if (realpath(path, (char *)&rpath) == NULL) {
	- dprintf(sock, notfounderr, recvc);
	- if (loglvl & ERRORS)
	- logentry(clienth, clientp, recvc, "not found");
	- return;
	- }
	-
	- if (stat(rpath, &dir) != -1) {
	+ if (stat(path, &dir) != -1) {
	/*
	* If sticky bit is set, only serve if this is encrypted.
	*/
	@@ -348,9 +339,9 @@ dothegopher:
	if (S_ISDIR(dir.st_mode)) {
	for (i = 0; i < sizeof(indexf)/sizeof(indexf[0]);
	i++) {
	- len = strlen(rpath);
	- if (len + strlen(indexf[i]) + ((rpath[len-1] =…
	- >= sizeof(rpath)) {
	+ len = strlen(path);
	+ if (len + strlen(indexf[i]) + ((path[len-1] ==…
	+ >= sizeof(path)) {
	if (loglvl & ERRORS) {
	logentry(clienth, clientp,
	recvc,
	@@ -369,18 +360,18 @@ dothegopher:
	* strncat of one char static char array
	* is an overflow.
	*/
	- if (rpath[len-1] != '/')
	- strcat(rpath, "/");
	- strcat(rpath, indexf[i]);
	- fd = open(rpath, O_RDONLY);
	+ if (path[len-1] != '/')
	+ strcat(path, "/");
	+ strcat(path, indexf[i]);
	+ fd = open(path, O_RDONLY);
	if (fd >= 0)
	break;

	/* Not found. Clear path from indexf. */
	- rpath[len] = '\0';
	+ path[len] = '\0';
	}
	} else {
	- fd = open(rpath, O_RDONLY);
	+ fd = open(path, O_RDONLY);
	if (fd < 0) {
	dprintf(sock, notfounderr, recvc);
	if (loglvl & ERRORS) {
	@@ -396,9 +387,9 @@ dothegopher:
	if (fd >= 0) {
	close(fd);

	- c = strrchr(rpath, '/');
	+ c = strrchr(path, '/');
	if (c == NULL)
	- c = rpath;
	+ c = path;
	type = gettype(c);

	/*
	@@ -880,7 +871,7 @@ main(int argc, char *argv[])

	#ifdef __OpenBSD__
	char promises[31]; /* check the size needed in the fork too */
	- snprintf(promises, sizeof(promises), "rpath inet stdio proc exec %s",
	+ snprintf(promises, sizeof(promises), "inet stdio proc exec %s",
	revlookup ? "dns" : "");
	if (pledge(promises, NULL) == -1) {
	perror("pledge");