xbps/lib/package_msg.c

87 lines
2.7 KiB
C

/*-
* Copyright (c) 2014 Juan Romero Pardines.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "xbps_api_impl.h"
int HIDDEN
xbps_cb_message(struct xbps_handle *xhp, xbps_dictionary_t pkgd, const char *key)
{
xbps_data_t msg;
FILE *f = NULL;
const void *data = NULL;
const char *pkgver = NULL;
size_t len;
char *buf = NULL;
int rv = 0;
assert(xhp);
assert(pkgd);
assert(key);
xbps_dictionary_get_cstring_nocopy(pkgd, "pkgver", &pkgver);
/* show install-msg if exists */
msg = xbps_dictionary_get(pkgd, key);
if (xbps_object_type(msg) != XBPS_TYPE_DATA)
goto out;
data = xbps_data_data_nocopy(msg);
len = xbps_data_size(msg);
if ((f = fmemopen(__UNCONST(data), len, "r")) == NULL) {
rv = errno;
xbps_dbg_printf(xhp, "[%s] %s: fmemopen %s\n", __func__, pkgver, strerror(rv));
goto out;
};
buf = malloc(len+1);
assert(buf);
if (fread(buf, len, 1, f) != len) {
if (ferror(f)) {
rv = errno;
xbps_dbg_printf(xhp, "[%s] %s: fread %s\n", __func__, pkgver, strerror(rv));
goto out;
}
}
/* terminate buffer and notify client to show the post-install message */
buf[len] = '\0';
if (strcmp(key, "install-msg") == 0)
xbps_set_cb_state(xhp, XBPS_STATE_SHOW_INSTALL_MSG, 0, pkgver, "%s", buf);
else
xbps_set_cb_state(xhp, XBPS_STATE_SHOW_REMOVE_MSG, 0, pkgver, "%s", buf);
out:
if (f != NULL)
fclose(f);
if (buf != NULL)
free(buf);
return rv;
}