libssh: remove dead code in sftp_qoute
... by removing a superfluous NULL pointer check that also confuses Coverity. Fixes #2143 Closes #2153
This commit is contained in:
Daniel Stenberg
Родитель
615edc1f73
Коммит
85f0133ea1
242
lib/ssh-libssh.c
242
lib/ssh-libssh.c
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@ -2516,138 +2516,132 @@ static void sftp_quote(struct connectdata *conn)
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state(conn, SSH_SFTP_NEXT_QUOTE);
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return;
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}
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if(cmd) {
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/*
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* the arguments following the command must be separated from the
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* command with a space so we can check for it unconditionally
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*/
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cp = strchr(cmd, ' ');
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if(cp == NULL) {
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failf(data, "Syntax error in SFTP command. Supply parameter(s)!");
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state(conn, SSH_SFTP_CLOSE);
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sshc->nextstate = SSH_NO_STATE;
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sshc->actualcode = CURLE_QUOTE_ERROR;
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return;
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}
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/*
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* also, every command takes at least one argument so we get that
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* first argument right now
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*/
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result = Curl_get_pathname(&cp, &sshc->quote_path1);
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if(result) {
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if(result == CURLE_OUT_OF_MEMORY)
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failf(data, "Out of memory");
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else
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failf(data, "Syntax error: Bad first parameter");
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state(conn, SSH_SFTP_CLOSE);
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sshc->nextstate = SSH_NO_STATE;
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sshc->actualcode = result;
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return;
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}
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/*
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* SFTP is a binary protocol, so we don't send text commands
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* to the server. Instead, we scan for commands used by
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* OpenSSH's sftp program and call the appropriate libssh
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* functions.
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*/
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if(strncasecompare(cmd, "chgrp ", 6) ||
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strncasecompare(cmd, "chmod ", 6) ||
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strncasecompare(cmd, "chown ", 6)) {
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/* attribute change */
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/* sshc->quote_path1 contains the mode to set */
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/* get the destination */
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result = Curl_get_pathname(&cp, &sshc->quote_path2);
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if(result) {
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if(result == CURLE_OUT_OF_MEMORY)
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failf(data, "Out of memory");
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else
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failf(data, "Syntax error in chgrp/chmod/chown: "
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"Bad second parameter");
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Curl_safefree(sshc->quote_path1);
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state(conn, SSH_SFTP_CLOSE);
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sshc->nextstate = SSH_NO_STATE;
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sshc->actualcode = result;
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return;
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}
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sshc->quote_attrs = NULL;
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state(conn, SSH_SFTP_QUOTE_STAT);
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return;
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}
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if(strncasecompare(cmd, "ln ", 3) ||
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strncasecompare(cmd, "symlink ", 8)) {
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/* symbolic linking */
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/* sshc->quote_path1 is the source */
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/* get the destination */
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result = Curl_get_pathname(&cp, &sshc->quote_path2);
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if(result) {
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if(result == CURLE_OUT_OF_MEMORY)
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failf(data, "Out of memory");
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else
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failf(data, "Syntax error in ln/symlink: Bad second parameter");
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Curl_safefree(sshc->quote_path1);
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state(conn, SSH_SFTP_CLOSE);
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sshc->nextstate = SSH_NO_STATE;
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sshc->actualcode = result;
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return;
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}
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state(conn, SSH_SFTP_QUOTE_SYMLINK);
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return;
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}
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else if(strncasecompare(cmd, "mkdir ", 6)) {
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/* create dir */
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state(conn, SSH_SFTP_QUOTE_MKDIR);
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return;
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}
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else if(strncasecompare(cmd, "rename ", 7)) {
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/* rename file */
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/* first param is the source path */
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/* second param is the dest. path */
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result = Curl_get_pathname(&cp, &sshc->quote_path2);
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if(result) {
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if(result == CURLE_OUT_OF_MEMORY)
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failf(data, "Out of memory");
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else
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failf(data, "Syntax error in rename: Bad second parameter");
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Curl_safefree(sshc->quote_path1);
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state(conn, SSH_SFTP_CLOSE);
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sshc->nextstate = SSH_NO_STATE;
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sshc->actualcode = result;
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return;
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}
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state(conn, SSH_SFTP_QUOTE_RENAME);
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return;
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}
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else if(strncasecompare(cmd, "rmdir ", 6)) {
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/* delete dir */
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state(conn, SSH_SFTP_QUOTE_RMDIR);
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return;
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}
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else if(strncasecompare(cmd, "rm ", 3)) {
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state(conn, SSH_SFTP_QUOTE_UNLINK);
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return;
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}
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#ifdef HAS_STATVFS_SUPPORT
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else if(strncasecompare(cmd, "statvfs ", 8)) {
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state(conn, SSH_SFTP_QUOTE_STATVFS);
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return;
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}
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#endif
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failf(data, "Unknown SFTP command");
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Curl_safefree(sshc->quote_path1);
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Curl_safefree(sshc->quote_path2);
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/*
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* the arguments following the command must be separated from the
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* command with a space so we can check for it unconditionally
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*/
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cp = strchr(cmd, ' ');
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if(cp == NULL) {
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failf(data, "Syntax error in SFTP command. Supply parameter(s)!");
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state(conn, SSH_SFTP_CLOSE);
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sshc->nextstate = SSH_NO_STATE;
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sshc->actualcode = CURLE_QUOTE_ERROR;
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return;
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}
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if(!sshc->quote_item) {
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state(conn, SSH_SFTP_GETINFO);
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/*
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* also, every command takes at least one argument so we get that
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* first argument right now
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*/
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result = Curl_get_pathname(&cp, &sshc->quote_path1);
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if(result) {
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if(result == CURLE_OUT_OF_MEMORY)
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failf(data, "Out of memory");
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else
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failf(data, "Syntax error: Bad first parameter");
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state(conn, SSH_SFTP_CLOSE);
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sshc->nextstate = SSH_NO_STATE;
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sshc->actualcode = result;
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return;
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}
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/*
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* SFTP is a binary protocol, so we don't send text commands
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* to the server. Instead, we scan for commands used by
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* OpenSSH's sftp program and call the appropriate libssh
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* functions.
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*/
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if(strncasecompare(cmd, "chgrp ", 6) ||
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strncasecompare(cmd, "chmod ", 6) ||
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strncasecompare(cmd, "chown ", 6)) {
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/* attribute change */
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/* sshc->quote_path1 contains the mode to set */
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/* get the destination */
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result = Curl_get_pathname(&cp, &sshc->quote_path2);
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if(result) {
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if(result == CURLE_OUT_OF_MEMORY)
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failf(data, "Out of memory");
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else
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failf(data, "Syntax error in chgrp/chmod/chown: "
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"Bad second parameter");
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Curl_safefree(sshc->quote_path1);
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state(conn, SSH_SFTP_CLOSE);
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sshc->nextstate = SSH_NO_STATE;
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sshc->actualcode = result;
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return;
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}
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sshc->quote_attrs = NULL;
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state(conn, SSH_SFTP_QUOTE_STAT);
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return;
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}
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if(strncasecompare(cmd, "ln ", 3) ||
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strncasecompare(cmd, "symlink ", 8)) {
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/* symbolic linking */
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/* sshc->quote_path1 is the source */
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/* get the destination */
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result = Curl_get_pathname(&cp, &sshc->quote_path2);
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if(result) {
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if(result == CURLE_OUT_OF_MEMORY)
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failf(data, "Out of memory");
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else
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failf(data, "Syntax error in ln/symlink: Bad second parameter");
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Curl_safefree(sshc->quote_path1);
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state(conn, SSH_SFTP_CLOSE);
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sshc->nextstate = SSH_NO_STATE;
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sshc->actualcode = result;
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return;
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}
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state(conn, SSH_SFTP_QUOTE_SYMLINK);
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return;
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}
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else if(strncasecompare(cmd, "mkdir ", 6)) {
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/* create dir */
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state(conn, SSH_SFTP_QUOTE_MKDIR);
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return;
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}
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else if(strncasecompare(cmd, "rename ", 7)) {
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/* rename file */
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/* first param is the source path */
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/* second param is the dest. path */
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result = Curl_get_pathname(&cp, &sshc->quote_path2);
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if(result) {
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if(result == CURLE_OUT_OF_MEMORY)
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failf(data, "Out of memory");
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else
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failf(data, "Syntax error in rename: Bad second parameter");
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Curl_safefree(sshc->quote_path1);
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state(conn, SSH_SFTP_CLOSE);
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sshc->nextstate = SSH_NO_STATE;
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sshc->actualcode = result;
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return;
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}
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state(conn, SSH_SFTP_QUOTE_RENAME);
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return;
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}
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else if(strncasecompare(cmd, "rmdir ", 6)) {
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/* delete dir */
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state(conn, SSH_SFTP_QUOTE_RMDIR);
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return;
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}
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else if(strncasecompare(cmd, "rm ", 3)) {
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state(conn, SSH_SFTP_QUOTE_UNLINK);
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return;
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}
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#ifdef HAS_STATVFS_SUPPORT
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else if(strncasecompare(cmd, "statvfs ", 8)) {
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state(conn, SSH_SFTP_QUOTE_STATVFS);
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return;
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}
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#endif
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failf(data, "Unknown SFTP command");
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Curl_safefree(sshc->quote_path1);
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Curl_safefree(sshc->quote_path2);
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state(conn, SSH_SFTP_CLOSE);
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sshc->nextstate = SSH_NO_STATE;
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sshc->actualcode = CURLE_QUOTE_ERROR;
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}
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static void sftp_quote_stat(struct connectdata *conn)
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