X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=cgisimple.c;h=585be2b6eca6dabd2f2d7c77691e8a36d2f43003;hp=3d5eed5a714fd65b5900b086d55f0d8d525f4cd3;hb=cf89cd7ace9007341dc8835f4b9c818dfb831666;hpb=11d4d86d90ca075d52a87bb95af11de1b0c5ac1a
diff --git a/cgisimple.c b/cgisimple.c
index 3d5eed5a..585be2b6 100644
--- a/cgisimple.c
+++ b/cgisimple.c
@@ -1,4 +1,4 @@
-const char cgisimple_rcs[] = "$Id: cgisimple.c,v 1.66 2008/02/23 16:57:12 fabiankeil Exp $";
+const char cgisimple_rcs[] = "$Id: cgisimple.c,v 1.91 2009/03/08 14:19:23 fabiankeil Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/cgisimple.c,v $
@@ -36,6 +36,99 @@ const char cgisimple_rcs[] = "$Id: cgisimple.c,v 1.66 2008/02/23 16:57:12 fabian
*
* Revisions :
* $Log: cgisimple.c,v $
+ * Revision 1.91 2009/03/08 14:19:23 fabiankeil
+ * Fix justified (but harmless) compiler warnings
+ * on platforms where sizeof(int) < sizeof(long).
+ *
+ * Revision 1.90 2009/03/01 18:43:09 fabiankeil
+ * Fix cparser warnings.
+ *
+ * Revision 1.89 2008/10/11 11:31:14 fabiankeil
+ * Add FEATURE_CONNECTION_KEEP_ALIVE to the list
+ * of conditional defines on the show-status page.
+ *
+ * Revision 1.88 2008/08/30 12:03:07 fabiankeil
+ * Remove FEATURE_COOKIE_JAR.
+ *
+ * Revision 1.87 2008/08/29 15:59:22 fabiankeil
+ * Fix two comments.
+ *
+ * Revision 1.86 2008/06/28 14:19:05 fabiankeil
+ * Protocol detection is done case-insensitive, fix assertion
+ * to do the same. Yay for Privoxy-Regression-Test and zzuf.
+ *
+ * Revision 1.85 2008/05/26 17:30:55 fabiankeil
+ * Provide an OpenSearch Description to access the
+ * show-url-info page through "search engine plugins".
+ *
+ * Revision 1.84 2008/05/26 16:16:55 fabiankeil
+ * Spell error correctly.
+ *
+ * Revision 1.83 2008/05/12 14:51:30 fabiankeil
+ * Don't complain about an invalid URL if show-url-info is requested
+ * without parameters. Regression introduced in 1.81 by yours truly.
+ *
+ * Revision 1.82 2008/05/10 20:01:47 fabiankeil
+ * Fix an assertion that could erroneously
+ * trigger in case of memory shortage.
+ *
+ * Revision 1.81 2008/05/05 09:54:39 fabiankeil
+ * In cgi_show_url_info(), make sure ftp URLs are
+ * declared invalid. Also simplify the code that adds
+ * "http://" if no protocol has been specified.
+ *
+ * Revision 1.80 2008/05/04 16:18:32 fabiankeil
+ * Provide parse_http_url() with a third parameter to specify
+ * whether or not URLs without protocol are acceptable.
+ *
+ * Revision 1.79 2008/05/04 13:30:56 fabiankeil
+ * Streamline parse_http_url()'s prototype.
+ *
+ * Revision 1.78 2008/05/03 16:50:11 fabiankeil
+ * Leverage content_filters_enabled() in cgi_show_url_info().
+ *
+ * Revision 1.77 2008/05/02 09:47:48 fabiankeil
+ * In cgi_show_url_info, pass an initialized http structure
+ * to parse_http_url() as that will be required soonish and
+ * assert that https URLs are recognized correctly.
+ *
+ * Revision 1.76 2008/04/28 09:13:30 fabiankeil
+ * In load_file(), remember the error reason and fclose()
+ * and return later on instead of right away.
+ *
+ * Revision 1.75 2008/04/27 13:52:52 fabiankeil
+ * Move CGI file loading code into load_file() and
+ * add checks for unexpected errors.
+ *
+ * Revision 1.74 2008/04/26 15:50:56 fabiankeil
+ * Fix macro name in cgi_show_file() error path.
+ *
+ * Revision 1.73 2008/04/26 12:21:55 fabiankeil
+ * Forget about JB_ERR_PARSE. JB_ERR_CGI_PARAMS to the rescue.
+ *
+ * Revision 1.72 2008/04/26 10:34:15 fabiankeil
+ * If zlib support is unavailable and there are content filters active
+ * but the prevent-compression action is disabled, include a warning
+ * on the show-url-info page that compression might prevent filtering.
+ *
+ * Revision 1.71 2008/04/25 13:33:56 fabiankeil
+ * - Factor cgi_show_file() out of cgi_show_status().
+ * - Adjust cgi_show_status()'s parameter description to match reality.
+ *
+ * Revision 1.70 2008/04/24 16:12:38 fabiankeil
+ * In cgi_show_status(), load the requested file at once.
+ * Using string_join() for every line really doesn't scale.
+ *
+ * Revision 1.69 2008/04/17 14:40:48 fabiankeil
+ * Provide get_http_time() with the buffer size so it doesn't
+ * have to blindly assume that the buffer is big enough.
+ *
+ * Revision 1.68 2008/03/27 18:27:21 fabiankeil
+ * Remove kill-popups action.
+ *
+ * Revision 1.67 2008/03/27 17:00:05 fabiankeil
+ * Turn the favicon blobs into locals.
+ *
* Revision 1.66 2008/02/23 16:57:12 fabiankeil
* Rename url_actions() to get_url_actions() and let it
* use the standard parameter ordering.
@@ -380,9 +473,12 @@ const char cgisimple_rcs[] = "$Id: cgisimple.c,v 1.66 2008/02/23 16:57:12 fabian
const char cgisimple_h_rcs[] = CGISIMPLE_H_VERSION;
-
static char *show_rcs(void);
static jb_err show_defines(struct map *exports);
+static jb_err cgi_show_file(struct client_state *csp,
+ struct http_response *rsp,
+ const struct map *parameters);
+static jb_err load_file(const char *filename, char **buffer, size_t *length);
/*********************************************************************
*
@@ -409,6 +505,8 @@ jb_err cgi_default(struct client_state *csp,
{
struct map *exports;
+ (void)parameters;
+
assert(csp);
assert(rsp);
@@ -725,6 +823,9 @@ jb_err cgi_transparent_image(struct client_state *csp,
struct http_response *rsp,
const struct map *parameters)
{
+ (void)csp;
+ (void)parameters;
+
rsp->body = bindup(image_blank_data, image_blank_length);
rsp->content_length = image_blank_length;
@@ -783,6 +884,9 @@ jb_err cgi_send_default_favicon(struct client_state *csp,
"\017\000\000";
static const size_t favicon_length = sizeof(default_favicon_data) - 1;
+ (void)csp;
+ (void)parameters;
+
rsp->body = bindup(default_favicon_data, favicon_length);
rsp->content_length = favicon_length;
@@ -841,6 +945,9 @@ jb_err cgi_send_error_favicon(struct client_state *csp,
"\017\000\000";
static const size_t favicon_length = sizeof(error_favicon_data) - 1;
+ (void)csp;
+ (void)parameters;
+
rsp->body = bindup(error_favicon_data, favicon_length);
rsp->content_length = favicon_length;
@@ -888,6 +995,8 @@ jb_err cgi_send_stylesheet(struct client_state *csp,
assert(csp);
assert(rsp);
+ (void)parameters;
+
err = template_load(csp, &rsp->body, "cgi-style.css", 0);
if (err == JB_ERR_FILE)
@@ -910,6 +1019,52 @@ jb_err cgi_send_stylesheet(struct client_state *csp,
return JB_ERR_OK;
}
+
+
+/*********************************************************************
+ *
+ * Function : cgi_send_url_info_osd
+ *
+ * Description : CGI function that sends the OpenSearch Description
+ * template for the show-url-info page. It allows to
+ * access the page through "search engine plugins".
+ *
+ * Parameters :
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
+ *
+ * CGI Parameters : None
+ *
+ * Returns : JB_ERR_OK on success
+ * JB_ERR_MEMORY on out-of-memory error.
+ *
+ *********************************************************************/
+jb_err cgi_send_url_info_osd(struct client_state *csp,
+ struct http_response *rsp,
+ const struct map *parameters)
+{
+ jb_err err = JB_ERR_MEMORY;
+ struct map *exports = default_exports(csp, NULL);
+
+ (void)csp;
+ (void)parameters;
+
+ if (NULL != exports)
+ {
+ err = template_fill_for_cgi(csp, "url-info-osd.xml", exports, rsp);
+ if (JB_ERR_OK == err)
+ {
+ err = enlist(rsp->headers,
+ "Content-Type: application/opensearchdescription+xml");
+ }
+ }
+
+ return err;
+
+}
+
+
/*********************************************************************
*
* Function : cgi_send_user_manual
@@ -935,7 +1090,6 @@ jb_err cgi_send_user_manual(struct client_state *csp,
{
const char * filename;
char *full_path;
- FILE *fp;
jb_err err = JB_ERR_OK;
size_t length;
@@ -966,40 +1120,18 @@ jb_err cgi_send_user_manual(struct client_state *csp,
return JB_ERR_MEMORY;
}
- /* Open user-manual file */
- if (NULL == (fp = fopen(full_path, "rb")))
+ err = load_file(full_path, &rsp->body, &rsp->content_length);
+ if (JB_ERR_OK != err)
{
- log_error(LOG_LEVEL_ERROR, "Cannot open user-manual file %s: %E", full_path);
- err = cgi_error_no_template(csp, rsp, full_path);
- free(full_path);
+ assert((JB_ERR_FILE == err) || (JB_ERR_MEMORY == err));
+ if (JB_ERR_FILE == err)
+ {
+ err = cgi_error_no_template(csp, rsp, full_path);
+ }
+ freez(full_path);
return err;
}
-
- /* Get file length */
- fseek(fp, 0, SEEK_END);
- length = (size_t)ftell(fp);
- fseek(fp, 0, SEEK_SET);
-
- /* Allocate memory and load the file directly into the body */
- rsp->body = (char *)zalloc(length+1);
- if (!rsp->body)
- {
- fclose(fp);
- free(full_path);
- return JB_ERR_MEMORY;
- }
- if (!fread(rsp->body, length, 1, fp))
- {
- /*
- * May happen if the file size changes between fseek() and fread().
- * If it does, we just log it and serve what we got.
- */
- log_error(LOG_LEVEL_ERROR, "Couldn't completely read user-manual file %s.", full_path);
- }
- fclose(fp);
- free(full_path);
-
- rsp->content_length = length;
+ freez(full_path);
/* Guess correct Content-Type based on the filename's ending */
if (filename)
@@ -1069,7 +1201,7 @@ jb_err cgi_show_version(struct client_state *csp,
return template_fill_for_cgi(csp, "show-version", exports, rsp);
}
-
+
/*********************************************************************
*
* Function : cgi_show_status
@@ -1085,7 +1217,7 @@ jb_err cgi_show_version(struct client_state *csp,
* CGI Parameters :
* file : Which file to show. Only first letter is checked,
* valid values are:
- * - "p"ermissions (actions) file
+ * - "a"ction file
* - "r"egex
* - "t"rust
* Default is to show menu and other information.
@@ -1102,10 +1234,7 @@ jb_err cgi_show_status(struct client_state *csp,
unsigned i;
int j;
- FILE * fp;
char buf[BUFFER_SIZE];
- const char * filename = NULL;
- char * file_description = NULL;
#ifdef FEATURE_STATISTICS
float perc_rej; /* Percentage of http requests rejected */
int local_urls_read;
@@ -1119,74 +1248,14 @@ jb_err cgi_show_status(struct client_state *csp,
assert(rsp);
assert(parameters);
- if (NULL == (exports = default_exports(csp, "show-status")))
+ if ('\0' != *(lookup(parameters, "file")))
{
- return JB_ERR_MEMORY;
+ return cgi_show_file(csp, rsp, parameters);
}
- switch (*(lookup(parameters, "file")))
- {
- case 'a':
- if (!get_number_param(csp, parameters, "index", &i) && i < MAX_AF_FILES && csp->actions_list[i])
- {
- filename = csp->actions_list[i]->filename;
- file_description = "Actions File";
- }
- break;
-
- case 'f':
- if (!get_number_param(csp, parameters, "index", &i) && i < MAX_AF_FILES && csp->rlist[i])
- {
- filename = csp->rlist[i]->filename;
- file_description = "Filter File";
- }
- break;
-
-#ifdef FEATURE_TRUST
- case 't':
- if (csp->tlist)
- {
- filename = csp->tlist->filename;
- file_description = "Trust File";
- }
- break;
-#endif /* def FEATURE_TRUST */
- }
-
- if (NULL != filename)
+ if (NULL == (exports = default_exports(csp, "show-status")))
{
- if ( map(exports, "file-description", 1, file_description, 1)
- || map(exports, "filepath", 1, html_encode(filename), 0) )
- {
- free_map(exports);
- return JB_ERR_MEMORY;
- }
-
- if ((fp = fopen(filename, "r")) == NULL)
- {
- if (map(exports, "content", 1, "ERROR OPENING FILE!
", 1))
- {
- free_map(exports);
- return JB_ERR_MEMORY;
- }
- }
- else
- {
- s = strdup("");
- while ((s != NULL) && fgets(buf, sizeof(buf), fp))
- {
- string_join (&s, html_encode(buf));
- }
- fclose(fp);
-
- if (map(exports, "contents", 1, s, 0))
- {
- free_map(exports);
- return JB_ERR_MEMORY;
- }
- }
-
- return template_fill_for_cgi(csp, "show-status-file", exports, rsp);
+ return JB_ERR_MEMORY;
}
s = strdup("");
@@ -1259,7 +1328,7 @@ jb_err cgi_show_status(struct client_state *csp,
if (!err) err = string_append(&s, "| ");
if (!err) err = string_join(&s, html_encode(csp->actions_list[i]->filename));
snprintf(buf, sizeof(buf),
- " | View", i);
+ " | View", i);
if (!err) err = string_append(&s, buf);
#ifdef FEATURE_CGI_EDIT_ACTIONS
@@ -1271,7 +1340,7 @@ jb_err cgi_show_status(struct client_state *csp,
if (access(csp->config->actions_file[i], W_OK) == 0)
{
#endif /* def HAVE_ACCESS */
- snprintf(buf, sizeof(buf), " Edit", i);
+ snprintf(buf, sizeof(buf), " Edit", i);
if (!err) err = string_append(&s, buf);
#ifdef HAVE_ACCESS
}
@@ -1306,8 +1375,8 @@ jb_err cgi_show_status(struct client_state *csp,
{
if (!err) err = string_append(&s, " |
| ");
if (!err) err = string_join(&s, html_encode(csp->rlist[i]->filename));
- snprintf(buf, 100,
- " | View", i);
+ snprintf(buf, sizeof(buf),
+ " | View", i);
if (!err) err = string_append(&s, buf);
if (!err) err = string_append(&s, " |
\n");
}
@@ -1436,22 +1505,16 @@ jb_err cgi_show_url_info(struct client_state *csp,
url_param[0] = '\0';
}
}
- else if (url_param[0] != '\0')
+ else if ((url_param[0] != '\0') && (NULL == strstr(url_param, "://")))
{
- /*
- * Unknown prefix - assume http://
- */
- const size_t url_param_prefixed_size = 7 + 1 + strlen(url_param);
- char * url_param_prefixed = malloc(url_param_prefixed_size);
- if (NULL == url_param_prefixed)
+ /* No prefix - assume http:// */
+ char *url_param_prefixed = strdup("http://");
+
+ if (JB_ERR_OK != string_join(&url_param_prefixed, url_param))
{
- free(url_param);
free_map(exports);
return JB_ERR_MEMORY;
}
- strlcpy(url_param_prefixed, "http://", url_param_prefixed_size);
- strlcat(url_param_prefixed, url_param, url_param_prefixed_size);
- free(url_param);
url_param = url_param_prefixed;
}
@@ -1510,7 +1573,9 @@ jb_err cgi_show_url_info(struct client_state *csp,
return JB_ERR_MEMORY;
}
- err = parse_http_url(url_param, url_to_query, csp);
+ memset(url_to_query, '\0', sizeof(url_to_query));
+ err = parse_http_url(url_param, url_to_query, REQUIRE_PROTOCOL);
+ assert((err != JB_ERR_OK) || (url_to_query->ssl == !strncmpic(url_param, "https://", 8)));
free(url_param);
@@ -1729,6 +1794,19 @@ jb_err cgi_show_url_info(struct client_state *csp,
}
#endif /* FEATURE_CGI_EDIT_ACTIONS */
+ /*
+ * If zlib support is available, if no content filters
+ * are enabled or if the prevent-compression action is enabled,
+ * suppress the "compression could prevent filtering" warning.
+ */
+#ifndef FEATURE_ZLIB
+ if (!content_filters_enabled(action) ||
+ (action->flags & ACTION_NO_COMPRESSION))
+#endif
+ {
+ if (!err) err = map_block_killer(exports, "filters-might-be-ineffective");
+ }
+
if (err || map(exports, "matches", 1, matches , 0))
{
free_current_action(action);
@@ -1775,6 +1853,9 @@ jb_err cgi_robots_txt(struct client_state *csp,
char buf[100];
jb_err err;
+ (void)csp;
+ (void)parameters;
+
rsp->body = strdup(
"# This is the Privoxy control interface.\n"
"# It isn't very useful to index it, and you're likely to break stuff.\n"
@@ -1792,7 +1873,7 @@ jb_err cgi_robots_txt(struct client_state *csp,
rsp->is_static = 1;
- get_http_time(7 * 24 * 60 * 60, buf); /* 7 days into future */
+ get_http_time(7 * 24 * 60 * 60, buf, sizeof(buf)); /* 7 days into future */
if (!err) err = enlist_unique_header(rsp->headers, "Expires", buf);
return (err ? JB_ERR_MEMORY : JB_ERR_OK);
@@ -1825,15 +1906,15 @@ static jb_err show_defines(struct map *exports)
#ifdef FEATURE_CGI_EDIT_ACTIONS
if (!err) err = map_conditional(exports, "FEATURE_CGI_EDIT_ACTIONS", 1);
-#else /* ifndef FEATURE_COOKIE_JAR */
+#else /* ifndef FEATURE_CGI_EDIT_ACTIONS */
if (!err) err = map_conditional(exports, "FEATURE_CGI_EDIT_ACTIONS", 0);
-#endif /* ndef FEATURE_COOKIE_JAR */
+#endif /* ndef FEATURE_CGI_EDIT_ACTIONS */
-#ifdef FEATURE_COOKIE_JAR
- if (!err) err = map_conditional(exports, "FEATURE_COOKIE_JAR", 1);
-#else /* ifndef FEATURE_COOKIE_JAR */
- if (!err) err = map_conditional(exports, "FEATURE_COOKIE_JAR", 0);
-#endif /* ndef FEATURE_COOKIE_JAR */
+#ifdef FEATURE_CONNECTION_KEEP_ALIVE
+ if (!err) err = map_conditional(exports, "FEATURE_CONNECTION_KEEP_ALIVE", 1);
+#else /* ifndef FEATURE_CGI_EDIT_ACTIONS */
+ if (!err) err = map_conditional(exports, "FEATURE_CONNECTION_KEEP_ALIVE", 0);
+#endif /* ndef FEATURE_CONNECTION_KEEP_ALIVE */
#ifdef FEATURE_FAST_REDIRECTS
if (!err) err = map_conditional(exports, "FEATURE_FAST_REDIRECTS", 1);
@@ -1867,11 +1948,11 @@ static jb_err show_defines(struct map *exports)
if (!err) err = map_conditional(exports, "FEATURE_IMAGE_DETECT_MSIE", 0);
#endif /* ndef FEATURE_IMAGE_DETECT_MSIE */
-#ifdef FEATURE_KILL_POPUPS
- if (!err) err = map_conditional(exports, "FEATURE_KILL_POPUPS", 1);
-#else /* ifndef FEATURE_KILL_POPUPS */
- if (!err) err = map_conditional(exports, "FEATURE_KILL_POPUPS", 0);
-#endif /* ndef FEATURE_KILL_POPUPS */
+#ifdef HAVE_RFC2553
+ if (!err) err = map_conditional(exports, "FEATURE_IPV6_SUPPORT", 1);
+#else /* ifndef HAVE_RFC2553 */
+ if (!err) err = map_conditional(exports, "FEATURE_IPV6_SUPPORT", 0);
+#endif /* ndef HAVE_RFC2553 */
#ifdef FEATURE_NO_GIFS
if (!err) err = map_conditional(exports, "FEATURE_NO_GIFS", 1);
@@ -1985,10 +2066,6 @@ static char *show_rcs(void)
SHOW_RCS(jbsockets_rcs)
SHOW_RCS(jcc_h_rcs)
SHOW_RCS(jcc_rcs)
-#ifdef FEATURE_KILL_POPUPS
- SHOW_RCS(killpopup_h_rcs)
- SHOW_RCS(killpopup_rcs)
-#endif /* def FEATURE_KILL_POPUPS */
SHOW_RCS(list_h_rcs)
SHOW_RCS(list_rcs)
SHOW_RCS(loadcfg_h_rcs)
@@ -2025,6 +2102,198 @@ static char *show_rcs(void)
}
+/*********************************************************************
+ *
+ * Function : cgi_show_file
+ *
+ * Description : CGI function that shows the content of a
+ * configuration file.
+ *
+ * Parameters :
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
+ *
+ * CGI Parameters :
+ * file : Which file to show. Only first letter is checked,
+ * valid values are:
+ * - "a"ction file
+ * - "r"egex
+ * - "t"rust
+ * Default is to show menu and other information.
+ *
+ * Returns : JB_ERR_OK on success
+ * JB_ERR_MEMORY on out-of-memory error.
+ *
+ *********************************************************************/
+static jb_err cgi_show_file(struct client_state *csp,
+ struct http_response *rsp,
+ const struct map *parameters)
+{
+ unsigned i;
+ const char * filename = NULL;
+ char * file_description = NULL;
+
+ assert(csp);
+ assert(rsp);
+ assert(parameters);
+
+ switch (*(lookup(parameters, "file")))
+ {
+ case 'a':
+ if (!get_number_param(csp, parameters, "index", &i) && i < MAX_AF_FILES && csp->actions_list[i])
+ {
+ filename = csp->actions_list[i]->filename;
+ file_description = "Actions File";
+ }
+ break;
+
+ case 'f':
+ if (!get_number_param(csp, parameters, "index", &i) && i < MAX_AF_FILES && csp->rlist[i])
+ {
+ filename = csp->rlist[i]->filename;
+ file_description = "Filter File";
+ }
+ break;
+
+#ifdef FEATURE_TRUST
+ case 't':
+ if (csp->tlist)
+ {
+ filename = csp->tlist->filename;
+ file_description = "Trust File";
+ }
+ break;
+#endif /* def FEATURE_TRUST */
+ }
+
+ if (NULL != filename)
+ {
+ struct map *exports;
+ char *s;
+ jb_err err;
+ size_t length;
+
+ exports = default_exports(csp, "show-status");
+ if (NULL == exports)
+ {
+ return JB_ERR_MEMORY;
+ }
+
+ if ( map(exports, "file-description", 1, file_description, 1)
+ || map(exports, "filepath", 1, html_encode(filename), 0) )
+ {
+ free_map(exports);
+ return JB_ERR_MEMORY;
+ }
+
+ err = load_file(filename, &s, &length);
+ if (JB_ERR_OK != err)
+ {
+ if (map(exports, "contents", 1, "ERROR OPENING FILE!
", 1))
+ {
+ free_map(exports);
+ return JB_ERR_MEMORY;
+ }
+ }
+ else
+ {
+ s = html_encode_and_free_original(s);
+ if (NULL == s)
+ {
+ return JB_ERR_MEMORY;
+ }
+
+ if (map(exports, "contents", 1, s, 0))
+ {
+ free_map(exports);
+ return JB_ERR_MEMORY;
+ }
+ }
+
+ return template_fill_for_cgi(csp, "show-status-file", exports, rsp);
+ }
+
+ return JB_ERR_CGI_PARAMS;
+}
+
+
+/*********************************************************************
+ *
+ * Function : load_file
+ *
+ * Description : Loads a file into a buffer.
+ *
+ * Parameters :
+ * 1 : filename = Name of the file to be loaded.
+ * 2 : buffer = Used to return the file's content.
+ * 3 : length = Used to return the size of the file.
+ *
+ * Returns : JB_ERR_OK in case of success,
+ * JB_ERR_FILE in case of ordinary file loading errors
+ * (fseek() and ftell() errors are fatal)
+ * JB_ERR_MEMORY in case of out-of-memory.
+ *
+ *********************************************************************/
+static jb_err load_file(const char *filename, char **buffer, size_t *length)
+{
+ FILE *fp;
+ long ret;
+ jb_err err = JB_ERR_OK;
+
+ fp = fopen(filename, "rb");
+ if (NULL == fp)
+ {
+ return JB_ERR_FILE;
+ }
+
+ /* Get file length */
+ if (fseek(fp, 0, SEEK_END))
+ {
+ log_error(LOG_LEVEL_FATAL,
+ "Unexpected error while fseek()ing to the end of %s: %E",
+ filename);
+ }
+ ret = ftell(fp);
+ if (-1 == ret)
+ {
+ log_error(LOG_LEVEL_FATAL,
+ "Unexpected ftell() error while loading %s: %E",
+ filename);
+ }
+ *length = (size_t)ret;
+
+ /* Go back to the beginning. */
+ if (fseek(fp, 0, SEEK_SET))
+ {
+ log_error(LOG_LEVEL_FATAL,
+ "Unexpected error while fseek()ing to the beginning of %s: %E",
+ filename);
+ }
+
+ *buffer = (char *)zalloc(*length + 1);
+ if (NULL == *buffer)
+ {
+ err = JB_ERR_MEMORY;
+ }
+ else if (!fread(*buffer, *length, 1, fp))
+ {
+ /*
+ * May happen if the file size changes between fseek() and
+ * fread(). If it does, we just log it and serve what we got.
+ */
+ log_error(LOG_LEVEL_ERROR,
+ "Couldn't completely read file %s.", filename);
+ err = JB_ERR_FILE;
+ }
+
+ fclose(fp);
+
+ return err;
+
+}
+
+
/*
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