AppImageKit-checkrt/checkrt.c

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/* Copyright (c) 2017 djcj <djcj@gmx.de>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#ifndef LIBC6_ARCH
# if (__WORDSIZE == 64)
# define LIBC6_ARCH "libc6,x86-64"
# else
# define LIBC6_ARCH "libc6"
# endif
#endif
#define LINE_SIZE 255
#define SCANLIB(lib,sym,regex) \
sprintf(command, format, lib, regex); \
f = popen(command, "r"); \
ret = fscanf(f, "%s", sym); (void)ret; \
pclose(f);
#define CXXDIR "optional/libstdc++"
#define GCCDIR "optional/libgcc"
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char optional[1024];
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void checkrt(char *usr_in_appdir)
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{
int ret;
FILE *f;
char command[LINE_SIZE];
char stdcxx_sys_lib[LINE_SIZE], gcc_sys_lib[LINE_SIZE];
char stdcxx_sys_sym[LINE_SIZE], gcc_sys_sym[LINE_SIZE];
char stdcxx_bundle_sym[LINE_SIZE], gcc_bundle_sym[LINE_SIZE];
int stdcxx_sys_ver=1, stdcxx_bundle_ver=0, gcc_sys_ver=1, gcc_bundle_ver=0;
char *stdcxx_bundle_lib = "./" CXXDIR "/libstdc++.so.6";
char *gcc_bundle_lib = "./" GCCDIR "/libgcc_s.so.1";
const char *format = "tr '\\0' '\\n' < '%s' | grep -e '%s' | tail -n1";
if (access(stdcxx_bundle_lib, F_OK) == 0) {
f = popen("ldconfig -p | grep 'libstdc++.so.6 (" LIBC6_ARCH ")' | awk 'NR==1{print $NF}'", "r");
ret = fscanf(f, "%s", stdcxx_sys_lib); (void)ret;
pclose(f);
if (access(stdcxx_sys_lib, F_OK) == 0) {
SCANLIB(stdcxx_sys_lib, stdcxx_sys_sym, "^GLIBCXX_3\\.4");
SCANLIB(stdcxx_bundle_lib, stdcxx_bundle_sym, "^GLIBCXX_3\\.4");
stdcxx_sys_ver = atoi(stdcxx_sys_sym+12);
stdcxx_bundle_ver = atoi(stdcxx_bundle_sym+12);
//printf("%s ==> %s (%d)\n", stdcxx_sys_lib, stdcxx_sys_sym, stdcxx_sys_ver);
//printf("%s ==> %s (%d)\n\n", stdcxx_bundle_lib, stdcxx_bundle_sym, stdcxx_bundle_ver);
}
}
if (access(gcc_bundle_lib, F_OK) == 0) {
f = popen("ldconfig -p | grep 'libgcc_s.so.1 (" LIBC6_ARCH ")' | awk 'NR==1{print $NF}'", "r");
ret = fscanf(f, "%s", gcc_sys_lib); (void)ret;
pclose(f);
if (access(gcc_sys_lib, F_OK) == 0) {
SCANLIB(gcc_sys_lib, gcc_sys_sym, "^GCC_[0-9]\\.[0-9]");
SCANLIB(gcc_bundle_lib, gcc_bundle_sym, "^GCC_[0-9]\\.[0-9]");
gcc_sys_ver = atoi(gcc_sys_sym+4) * 100 + atoi(gcc_sys_sym+6) * 10 + atoi(gcc_sys_sym+8);
gcc_bundle_ver = atoi(gcc_bundle_sym+4) * 100 + atoi(gcc_bundle_sym+6) * 10 + atoi(gcc_bundle_sym+8);
//printf("%s ==> %s (%d)\n", gcc_sys_lib, gcc_sys_sym, gcc_sys_ver);
//printf("%s ==> %s (%d)\n\n", gcc_bundle_lib, gcc_bundle_sym, gcc_bundle_ver);
}
}
int bundle_cxx = 0;
int bundle_gcc = 0;
if (stdcxx_bundle_ver > stdcxx_sys_ver)
bundle_cxx = 1;
if (gcc_bundle_ver > gcc_sys_ver)
bundle_gcc = 1;
if (bundle_cxx == 1 && bundle_gcc == 0) {
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sprintf(optional, "%s/" CXXDIR ":", usr_in_appdir);
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} else if (bundle_cxx == 0 && bundle_gcc == 1) {
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sprintf(optional, "%s/" GCCDIR ":", usr_in_appdir);
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} else if (bundle_cxx == 1 && bundle_gcc == 1) {
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sprintf(optional, "%s/" GCCDIR ":%s/" CXXDIR ":", usr_in_appdir, usr_in_appdir);
} else {
sprintf(optional, "%s", "");
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}
}