diff options
Diffstat (limited to 'dbutil.c')
-rw-r--r-- | dbutil.c | 46 |
1 files changed, 46 insertions, 0 deletions
@@ -320,6 +320,52 @@ int buf_readfile(buffer* buf, const char* filename) { return DROPBEAR_SUCCESS; } +/* get a line from the file into buffer in the style expected for an + * authkeys file. + * Will return DROPBEAR_SUCCESS if data is read, or DROPBEAR_FAILURE on EOF.*/ +/* Only used for ~/.ssh/known_hosts and ~/.ssh/authorized_keys */ +#if defined(DROPBEAR_CLIENT) || defined(DROPBEAR_PUBKEY_AUTH) +int buf_getline(buffer * line, FILE * authfile) { + + int c = EOF; + + TRACE(("enter buf_getline")); + + buf_setpos(line, 0); + buf_setlen(line, 0); + + while (line->pos < line->size) { + + c = fgetc(authfile); /*getc() is weird with some uClibc systems*/ + if (c == EOF || c == '\n' || c == '\r') { + goto out; + } + + buf_putbyte(line, (unsigned char)c); + } + + TRACE(("leave getauthline: line too long")); + /* We return success, but the line length will be zeroed - ie we just + * ignore that line */ + buf_setlen(line, 0); + +out: + + buf_setpos(line, 0); + + /* if we didn't read anything before EOF or error, exit */ + if (c == EOF && line->pos == 0) { + TRACE(("leave getauthline: failure")); + return DROPBEAR_FAILURE; + } else { + TRACE(("leave getauthline: success")); + return DROPBEAR_SUCCESS; + } + + TRACE(("leave buf_getline")); +} +#endif + /* loop until the socket is closed (in case of EINTR) or * we get and error. * Returns DROPBEAR_SUCCESS or DROPBEAR_FAILURE */ |