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Use the POSIX pathconf(2) to determine the maximum path length.

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It fixes build on BSD platforms where PATH_MAX is defined in
<sys/syslimits.h> vs <linux/limits.h> on Linux.
This commit is contained in:
fredzio 2019-07-07 01:02:38 +02:00
parent 240f76e822
commit ca7ac30f6d
1 changed files with 2 additions and 4 deletions
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6
components/files/linuxpath.cpp
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@ -4,7 +4,6 @@
#include <pwd.h>
#include <unistd.h>
#include <linux/limits.h>
#include <boost/filesystem/fstream.hpp>
#include <components/debug/debuglog.hpp>
@ -81,13 +80,12 @@ boost::filesystem::path LinuxPath::getGlobalConfigPath() const
boost::filesystem::path LinuxPath::getLocalPath() const
{
boost::filesystem::path localPath("./");
char binPath[PATH_MAX];
memset(binPath, 0, sizeof(binPath));
std::string binPath(pathconf(".", _PC_PATH_MAX), '\0');
const char *statusPaths[] = {"/proc/self/exe", "/proc/self/file", "/proc/curproc/exe", "/proc/curproc/file"};
for(const char *path : statusPaths)
{
if (readlink(path, binPath, sizeof(binPath)) != -1)
if (readlink(path, &binPath[0], binPath.size()) != -1)
{
localPath = boost::filesystem::path(binPath).parent_path();
break;