diff options
Diffstat (limited to 'src/appl/gss-sample/gss-misc.c')
| -rw-r--r-- | src/appl/gss-sample/gss-misc.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/src/appl/gss-sample/gss-misc.c b/src/appl/gss-sample/gss-misc.c new file mode 100644 index 0000000000..24705ab87c --- /dev/null +++ b/src/appl/gss-sample/gss-misc.c @@ -0,0 +1,181 @@ +/* + * Copyright 1994 by OpenVision Technologies, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appears in all copies and + * that both that copyright notice and this permission notice appear in + * supporting documentation, and that the name of OpenVision not be used + * in advertising or publicity pertaining to distribution of the software + * without specific, written prior permission. OpenVision makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL OPENVISION BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF + * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR + * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#if !defined(lint) && !defined(__CODECENTER__) +static char *rcsid = "$Header$"; +#endif + +#include <stdio.h> +#include <sys/types.h> +#include <netinet/in.h> + +#include <gssapi/gssapi.h> +#include <gssapi/gssapi_generic.h> + +static void display_status_1(char *m, OM_uint32 code, int type); + +/* + * Function: send_token + * + * Purpose: Writes a token to a file descriptor. + * + * Arguments: + * + * s (r) an open file descriptor + * tok (r) the token to write + * + * Returns: 0 on success, -1 on failure + * + * Effects: + * + * send_token writes the token length (as a network long) and then the + * token data to the file descriptor s. It returns 0 on success, and + * -1 if an error occurs or if it could not write all the data. + */ +int send_token(int s, gss_buffer_t tok) +{ + int len, ret; + + len = htonl(tok->length); + + ret = write(s, (char *) &len, 4); + if (ret < 0) { + perror("sending token length"); + return -1; + } else if (ret != 4) { + fprintf(stderr, "sending token length: %d of %d bytes written\n", + ret, 4); + return -1; + } + + ret = write(s, tok->value, tok->length); + if (ret < 0) { + perror("sending token data"); + return -1; + } else if (ret != tok->length) { + fprintf(stderr, "sending token data: %d of %d bytes written\n", + ret, tok->length); + return -1; + } + + return 0; +} + +/* + * Function: recv_token + * + * Purpose: Reads a token from a file descriptor. + * + * Arguments: + * + * s (r) an open file descriptor + * tok (w) the read token + * + * Returns: 0 on success, -1 on failure + * + * Effects: + * + * recv_token reads the token length (as a network long), allocates + * memory to hold the data, and then reads the token data from the + * file descriptor s. It blocks to read the length and data, if + * necessary. On a successful return, the token should be freed with + * gss_release_buffer. It returns 0 on success, and -1 if an error + * occurs or if it could not read all the data. + */ +int recv_token(int s, gss_buffer_t tok) +{ + int ret; + + ret = read(s, (char *) &tok->length, 4); + if (ret < 0) { + perror("reading token length"); + return -1; + } else if (ret != 4) { + fprintf(stderr, "reading token length: %d of %d bytes read\n", + ret, 4); + return -1; + } + + tok->length = ntohl(tok->length); + tok->value = (char *) malloc(tok->length); + if (tok->value == NULL) { + fprintf(stderr, "Out of memory allocating token data\n"); + return -1; + } + + ret = read(s, (char *) tok->value, tok->length); + if (ret < 0) { + perror("reading token data"); + free(tok->value); + return -1; + } else if (ret != tok->length) { + fprintf(stderr, "sending token data: %d of %d bytes written\n", + ret, tok->length); + free(tok->value); + return -1; + } + + return 0; +} + +/* + * Function: display_status + * + * Purpose: displays GSS-API messages + * + * Arguments: + * + * msg a string to be displayed with the message + * maj_stat the GSS-API major status code + * min_stat the GSS-API minor status code + * + * Effects: + * + * The GSS-API messages associated with maj_stat and min_stat are + * displayed on stderr, each preceeded by "GSS-API error <msg>: " and + * followed by a newline. + */ +void display_status(char *msg, OM_uint32 maj_stat, OM_uint32 min_stat) +{ + display_status_1(msg, maj_stat, GSS_C_GSS_CODE); + display_status_1(msg, min_stat, GSS_C_MECH_CODE); +} + +static void display_status_1(char *m, OM_uint32 code, int type) +{ + OM_uint32 maj_stat, min_stat; + gss_buffer_desc msg; + int msg_ctx; + + msg_ctx = 0; + while (1) { + maj_stat = gss_display_status(&min_stat, code, + type, GSS_C_NULL_OID, + &msg_ctx, &msg); + fprintf(stderr, "GSS-API error %s: %s\n", m, + (char *)msg.value); + (void) gss_release_buffer(&min_stat, &msg); + + if (!msg_ctx) + break; + } +} |