mirror of
https://git.FreeBSD.org/ports.git
synced 2024-11-14 23:46:10 +00:00
141 lines
3.7 KiB
Plaintext
141 lines
3.7 KiB
Plaintext
--- tftpd.c.orig Mon Mar 20 14:14:39 1995
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+++ tftpd.c Fri Aug 27 12:46:59 1999
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@@ -294,7 +294,10 @@
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}
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int validate_access();
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-int sendfile(), recvfile();
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+
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+struct formats;
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+int tftpsendfile(struct formats *);
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+int tftprecvfile(struct formats *);
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struct formats {
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char *f_mode;
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@@ -303,8 +306,8 @@
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int (*f_recv)();
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int f_convert;
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} formats[] = {
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- { "netascii", validate_access, sendfile, recvfile, 1 },
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- { "octet", validate_access, sendfile, recvfile, 0 },
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+ { "netascii", validate_access, tftpsendfile, tftprecvfile, 1 },
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+ { "octet", validate_access, tftpsendfile, tftprecvfile, 0 },
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#ifdef notdef
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{ "mail", validate_user, sendmail, recvmail, 1 },
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#endif
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@@ -459,17 +462,25 @@
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/* Rule 2:
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*/
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- if (tftpRootDirectory != 0 && IS_ROOTED(filename)) {
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+ if ((tftpRootDirectory != 0 && IS_ROOTED(filename)) ||
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+ (tftpDefaultDirectory != 0 && IS_ROOTED(filename))) {
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char _tmp[1024];
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+ char* realRootDir;
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int maxPath;
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int rootLen;
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- rootLen = strlen (tftpRootDirectory);
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+ if (tftpRootDirectory != 0 ) {
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+ realRootDir = tftpRootDirectory;
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+ }
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+ else {
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+ realRootDir = tftpDefaultDirectory;
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+ }
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+
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+ rootLen = strlen (realRootDir);
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/* make sure the pathname doesn't already contain
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* the virtual root.
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*/
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- if (strncmp(filename,tftpRootDirectory,rootLen) != 0) {
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/* Insure our temporary space is big enough */
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maxPath = ((sizeof _tmp) - 1) - rootLen;
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@@ -481,6 +492,8 @@
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return EACCESS;
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}
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+ if (strncmp(filename,realRootDir,rootLen) != 0) {
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+
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/* Squeeze out any '.' or '..' components */
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strcpy (tmpPath, filename);
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if (realPath (tmpPath, _tmp) < 0) {
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@@ -492,21 +505,54 @@
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/* Create the full pathname, prefixed by the
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* virtual root.
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*/
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- strcpy (tmpPath, tftpRootDirectory);
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+ strcpy (tmpPath, realRootDir);
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strcat (tmpPath, _tmp);
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filename = tmpPath;
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}
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+ else {
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+ /* Squeeze out any '.' or '..' components */
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+ strcpy (tmpPath, filename);
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+ if (realPath (tmpPath, _tmp) < 0) {
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+ if (tftpDebugLevel > 1)
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+ syslog (LOG_DEBUG, "realPath fails");
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+ return EACCESS;
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+ }
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+ /* Create the full pathname */
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+ strcpy (tmpPath,_tmp);
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+ filename = tmpPath;
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+ if (strncmp(filename,realRootDir,rootLen) != 0) {
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+ if (tftpDebugLevel > 1) {
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+ syslog(LOG_DEBUG, "file=%s; invalid access denied", filename);
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+ return EACCESS;
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+ }
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+ }
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+ }
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}
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/* Rule 3:
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*/
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- if (!IS_ROOTED(filename) && tftpDefaultDirectory == 0) {
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- strcpy (tmpPath, tftpRootDirectory);
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- strcat (tmpPath, "/");
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+ if ((!IS_ROOTED(filename) && tftpRootDirectory != 0) ||
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+ (!IS_ROOTED(filename) && tftpDefaultDirectory != 0)) {
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+ char _tmp[1024];
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strcat (tmpPath, filename);
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+ /* Squeeze out any '.' or '..' components */
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+ strcpy (tmpPath, filename);
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+ if (realPath (tmpPath, _tmp) < 0) {
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+ if (tftpDebugLevel > 1)
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+ syslog (LOG_DEBUG, "realPath fails");
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+ return EACCESS;
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+ }
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+ if ( tftpDefaultDirectory == 0 ) {
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+ strcpy (tmpPath, tftpRootDirectory);
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+ }
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+ else {
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+ strcpy (tmpPath, tftpDefaultDirectory);
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+ }
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+ strcat (tmpPath, _tmp);
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filename = tmpPath;
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}
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+
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/* Check access lists */
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/* Rules 4&5:
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*/
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@@ -593,7 +639,7 @@
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/*
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* Send the requested file.
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*/
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-sendfile(pf)
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+tftpsendfile(pf)
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struct formats *pf;
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{
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struct tftphdr *dp, *r_init();
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@@ -664,7 +710,7 @@
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/*
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* Receive a file.
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*/
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-recvfile(pf)
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+tftprecvfile(pf)
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struct formats *pf;
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{
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struct tftphdr *dp, *w_init();
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