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sftp: allow quoted commands to use relative paths

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Closes #1900
This commit is contained in:
John DeHelian 2017-12-08 11:31:01 -05:00 • committed by Daniel Stenberg
parent 9fb5a943f5
commit a4a56ec93e
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GPG key ID: 5CC908FDB71E12C2
4 changed files with 34 additions and 19 deletions
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34
lib/curl_path.c
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@ -110,21 +110,25 @@ CURLcode Curl_getworkingpath(struct connectdata *conn,
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
CURLcode Curl_get_pathname(const char **cpp, char **path)
CURLcode Curl_get_pathname(const char **cpp, char **path, char *homedir)
{
const char *cp = *cpp, *end;
char quot;
unsigned int i, j;
size_t fullPathLength, pathLength;
bool relativePath = false;
static const char WHITESPACE[] = " \t\r\n";
cp += strspn(cp, WHITESPACE);
if(!*cp) {
*cpp = cp;
*cpp = NULL;
*path = NULL;
return CURLE_QUOTE_ERROR;
}
*path = malloc(strlen(cp) + 1);
/* Ignore leading whitespace */
cp += strspn(cp, WHITESPACE);
/* Allocate enough space for home directory and filename + separator */
fullPathLength = strlen(cp) + strlen(homedir) + 2;
*path = malloc(fullPathLength);
if(*path == NULL)
return CURLE_OUT_OF_MEMORY;
@ -162,14 +166,26 @@ CURLcode Curl_get_pathname(const char **cpp, char **path)
*cpp = cp + i + strspn(cp + i, WHITESPACE);
}
else {
/* Read to end of filename */
/* Read to end of filename - either to white space or terminator */
end = strpbrk(cp, WHITESPACE);
if(end == NULL)
end = strchr(cp, '\0');
/* return pointer to second parameter if it exists */
*cpp = end + strspn(end, WHITESPACE);
memcpy(*path, cp, end - cp);
(*path)[end - cp] = '\0';
pathLength = 0;
relativePath = (cp[0] == '/' && cp[1] == '~' && cp[2] == '/');
/* Handling for relative path - prepend home directory */
if(relativePath) {
strcpy(*path, homedir);
pathLength = strlen(homedir);
(*path)[pathLength++] = '/';
(*path)[pathLength] = '\0';
cp += 3;
}
/* Copy path name up until first "white space" */
memcpy(&(*path)[pathLength], cp, (int)(end - cp));
pathLength += (int)(end - cp);
(*path)[pathLength] = '\0';
}
return CURLE_OK;