diff options
Diffstat (limited to 'lib/libfetch/ftp.c')
| -rw-r--r-- | lib/libfetch/ftp.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/lib/libfetch/ftp.c b/lib/libfetch/ftp.c index 92c51ed..3613c4c 100644 --- a/lib/libfetch/ftp.c +++ b/lib/libfetch/ftp.c @@ -267,6 +267,7 @@ _ftp_cwd(conn_t *conn, const char *file) char pwd[PATH_MAX]; int e, i, len; + /* If no slashes in name, no need to change dirs. */ if ((end = strrchr(file, '/')) == NULL) return (0); if ((e = _ftp_cmd(conn, "PWD")) != FTP_WORKING_DIRECTORY || @@ -276,7 +277,8 @@ _ftp_cwd(conn_t *conn, const char *file) } for (;;) { len = strlen(pwd); - /* look for a common prefix */ + + /* Look for a common prefix between PWD and dir to fetch. */ for (i = 0; i <= len && i <= end - file; ++i) if (pwd[i] != file[i]) break; @@ -284,6 +286,7 @@ _ftp_cwd(conn_t *conn, const char *file) DEBUG(fprintf(stderr, "have: [%.*s|%s]\n", i, pwd, pwd + i)); DEBUG(fprintf(stderr, "want: [%.*s|%s]\n", i, file, file + i)); #endif + /* Keep going up a dir until we have a matching prefix. */ if (pwd[i] == '\0' && (file[i - 1] == '/' || file[i] == '/')) break; if ((e = _ftp_cmd(conn, "CDUP")) != FTP_FILE_ACTION_OK || @@ -293,6 +296,23 @@ _ftp_cwd(conn_t *conn, const char *file) return (-1); } } + +#ifdef FTP_COMBINE_CWDS + /* Skip leading slashes, even "////". */ + for (beg = file + i; beg < end && *beg == '/'; ++beg, ++i) + /* nothing */ ; + + /* If there is no trailing dir, we're already there. */ + if (beg >= end) + return (0); + + /* Change to the directory all in one chunk (e.g., foo/bar/baz). */ + e = _ftp_cmd(conn, "CWD %.*s", (int)(end - beg), beg); + if (e == FTP_FILE_ACTION_OK) + return (0); +#endif /* FTP_COMBINE_CWDS */ + + /* That didn't work so go back to legacy behavior (multiple CWDs). */ for (beg = file + i; beg < end; beg = file + i + 1) { while (*beg == '/') ++beg, ++i; @@ -966,6 +986,8 @@ _ftp_connect(struct url *url, struct url *purl, const char *flags) if ((e = _ftp_authenticate(conn, url, purl)) != FTP_LOGGED_IN) goto fouch; + /* TODO: Request extended features supported, if any (RFC 3659). */ + /* done */ return (conn); |
