distroquery: convert from C to C++

src/CMakeLists.txt

@@ -65,8 +65,9 @@ target_include_directories(distromatic PUBLIC
 #
 target_compile_options(distromatic PUBLIC -O2 -g -Wall -std=gnu11 -pedantic ${RPM_CFLAGS_OTHER})
 # -fno-toplevel-reorder
+
 add_executable(distroquery
-  distroquery.c
+  distroquery.cpp
   functions.c
   headerlist.c
   requirelist.c
@@ -85,6 +86,7 @@ target_link_libraries(distroquery
   ${LIBDW_LIBRARIES}
   ${LIBIBERTY}
 )
+
 target_include_directories(distroquery PUBLIC
   ${RPM_INCLUDE_DIRS}
   ${LIBREPO_INCLUDE_DIRS}

src/distroquery.cpp

@@ -17,6 +17,8 @@
  * 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
  */
 
+#include <distroquery.hpp>
+
 #include <getopt.h>
 #include <errno.h>
 #include <stdio.h>
@@ -35,26 +37,23 @@
 #include <string.h>
 #include <linux/limits.h>
 #include <sqlite3.h>
-#include "distromatic.h"
 #include "config.h"
-#include "rpmfunctions.h"
-#include "functions.h"
 
 // must be as big as ARCHS_MAX (5)
 const char* ARCHS[ARCHS_MAX] = { "x86_64", "aarch64", "i586", "arm", "" };
 
 static struct configTag *firstconfigtag = NULL;
-char *query = "";
+char *query = (char*)"";
 char *query_package;
-char *query_repository = "base";
+char *query_repository = (char*)"base";
 char *query_arch = NULL;
 int query_compact = 0;
 int query_limit = 10;
 int query_offset = 0;
 char query_next[PATH_MAX] = "";
-char *reply_xmltag = "queryreply";
+char *reply_xmltag = (char*)"queryreply";
 int reply_plain = 0;
-char *lang = "";
+char *lang = (char*)"";
 int query_archs[ARCHS_MAX] = { 1, 0, 0, 0, 0 };
 char *query_path = NULL;
 
@@ -78,7 +77,7 @@ char to_hex(char code) {
 /* Returns a url-encoded version of str */
 /* IMPORTANT: be sure to free() the returned string after use */
 char *url_encode(char *str) {
-  char *pstr = str, *buf = malloc(strlen(str) * 3 + 1), *pbuf = buf;
+  char *pstr = str, *buf = (char*)malloc(strlen(str) * 3 + 1), *pbuf = buf;
   while (*pstr) {
     if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~')
       *pbuf++ = *pstr;
@@ -95,8 +94,8 @@ char *url_encode(char *str) {
 /* Returns a url-decoded version of str */
 /* IMPORTANT: be sure to free() the returned string after use */
 char *url_decode(char *str) {
-  if (!str) { char *buf=malloc(1); buf[0]=0; return buf; }
-  char *pstr = str, *buf = malloc(strlen(str) + 1), *pbuf = buf;
+  if (!str) { char *buf=(char*)malloc(1); buf[0]=0; return buf; }
+  char *pstr = str, *buf = (char*)malloc(strlen(str) + 1), *pbuf = buf;
   while (*pstr) {
     if (*pstr == '%') {
       if (pstr[1] && pstr[2]) {
@@ -369,7 +368,7 @@ int findFileIdFromPath(sqlite3 *db, char** path) {
    char* pt;
    char buffer[PATH_MAX];
    char sql[PATH_MAX];
-   char* linkpath = calloc(strlen(*path),1);
+   char* linkpath = (char*)calloc(strlen(*path),1);
    sqlite3_stmt* stmt1;
 
    printf("[<a href='javascript:distroquery_request(\"repository=%s&arch=%s&path=/\")'>ROOT</a>]",
@@ -512,7 +511,7 @@ void printQueryResponse() {
                  snprintf(dbname, PATH_MAX, "%s%s-%s.db",
                     query_repositories[i]->repository_dir, query_repositories[i]->tag, query_repositories[i]->arch[a]);
                  if (sqlite3_open_v2(dbname, (sqlite3**)&query_repositories[i]->db[a], SQLITE_OPEN_READONLY, NULL)) {
-                    if (query_repositories[i]->db) sqlite3_close(query_repositories[i]->db[a]);
+                    if (query_repositories[i]->db) sqlite3_close((sqlite3*)query_repositories[i]->db[a]);
                     query_repositories[i]->db[a] = NULL;
                     fprintf(stderr, "ERROR: unable to open sqlite3 db %s; ignoring.\n", dbname);
                  }
@@ -740,7 +739,7 @@ void printQueryResponse() {
            if (!query_repositories[i]->db[ARCHS_MAX]) {
               snprintf(dbname, PATH_MAX, "%s%s-sources.db", query_repositories[i]->repository_dir, query_repositories[i]->tag);
               if (sqlite3_open_v2(dbname, (sqlite3**)&query_repositories[i]->db[ARCHS_MAX], SQLITE_OPEN_READONLY, NULL)) {
-                 if (query_repositories[i]->db[ARCHS_MAX]) sqlite3_close(query_repositories[i]->db[ARCHS_MAX]);
+                 if (query_repositories[i]->db[ARCHS_MAX]) sqlite3_close((sqlite3*)query_repositories[i]->db[ARCHS_MAX]);
                  query_repositories[i]->db[ARCHS_MAX] = NULL;
                  fprintf(stderr, "ERROR: unable to open sqlite3 db %s; ignoring.\n", dbname);
               }
@@ -792,7 +791,7 @@ void printQueryResponse() {
               }
               sqlite3_finalize(statement);
            } else {
-              fprintf(stderr, "ERROR: SQLite: %s (%s)\n", sqlite3_errmsg(query_repositories[i]->db[ARCHS_MAX]), sql);
+              fprintf(stderr, "ERROR: SQLite: %s (%s)\n", sqlite3_errmsg((sqlite3*)query_repositories[i]->db[ARCHS_MAX]), sql);
            }
            if (localsourceresults >= query_limit) otherresults = 1;
         } /* repositories loop */

src/functions.c

@@ -477,12 +477,12 @@ strip_separators(char *st, const char *sepstr)
 }
 
 humanDate *
-simpleTimeToTemplate(long calendartime, const char* template, humanDate * strdate)
+simpleTimeToTemplate(long calendartime, const char* templ, humanDate * strdate)
 {
      struct tm *ltime;
 
      ltime = localtime((time_t *) & calendartime);
-     strftime((char *) strdate, 16, template, ltime);
+     strftime((char *) strdate, 16, templ, ltime);
 
      return strdate;
 }

src/include/distroquery.hpp

@@ -0,0 +1,33 @@
+/*
+ * distroquery - tool for querying data generated by distromatic
+ *
+ * Copyright (C) 2024 by Silvan Calarco <silvan.calarco@mambasoft.it>
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of version 2 of the GNU General Public License as published by the
+ * Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY, to the extent permitted by law; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
+ */
+#define HDSIZE 16
+#define SSSIZE 24
+
+extern "C" typedef char humanDate[HDSIZE];
+extern "C" typedef char sizeString[SSSIZE];
+
+extern "C" char *humanSize(long long sbytes, sizeString *s);
+extern "C" humanDate *simpleTimeToTemplate(long calendartime, const char* templ, humanDate * strdate);
+extern "C" humanDate *simpleTimeToHuman(long calendartime, humanDate * strdate);
+extern "C" const char *htmlclean(const char *source,char *dest,unsigned int max);
+extern "C" const char *htmlcleanNoBr(const char *source,char *dest,unsigned int max);
+extern "C" int get_favicon_from_url(const char* url,char *buf,int bufsize);
+extern "C" void backtraceHandler(int sig);
+extern "C" struct configTag* findRepositoryByTag(const char *tag);
+extern "C" struct configTag* read_configuration(const char *confFile);

src/include/functions.h

@@ -30,8 +30,7 @@ void *memndup(void *memp, size_t size);
 void log_debug_set(int value);
 void logmsg(int level, const char *msg, ...);
 char *strip_separators(char *st, const char *sepstr);
-humanDate *
-simpleTimeToTemplate(long calendartime, const char* template, humanDate * strdate);
+humanDate *simpleTimeToTemplate(long calendartime, const char* templ, humanDate * strdate);
 humanDate *simpleTimeToHuman(long calendartime, humanDate * strdate);
 char *humanSize(long long sbytes, sizeString *s);
 void fprintf_depstable_filtered_var(FILE* f,char* st);