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LibTimeZone: Replace PATH_MAX usage with heap allocation

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Sergey Bugaev 2023-09-03 17:57:37 +03:00 • committed by Andrew Kaster
parent ae10d085ba
commit de6664c0cb
1 changed files with 5 additions and 3 deletions
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8
Userland/Libraries/LibTimeZone/TimeZone.cpp
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@ -6,6 +6,7 @@
#include <AK/Debug.h> #include <AK/Debug.h>
#include <AK/DeprecatedString.h> #include <AK/DeprecatedString.h>
#include <AK/ScopeGuard.h>
#include <LibTimeZone/TimeZone.h> #include <LibTimeZone/TimeZone.h>
#include <limits.h> #include <limits.h>
#include <stdio.h> #include <stdio.h>
@ -106,10 +107,11 @@ StringView current_time_zone()
return system_time_zone(); return system_time_zone();
#else #else
static constexpr auto zoneinfo = "/zoneinfo/"sv; static constexpr auto zoneinfo = "/zoneinfo/"sv;
char buffer[PATH_MAX]; char* real_path = realpath("/etc/localtime", nullptr);
ScopeGuard free_path = [real_path]() { free(real_path); };
if (realpath("/etc/localtime", buffer)) { if (real_path) {
auto time_zone = StringView { buffer, strlen(buffer) }; auto time_zone = StringView { real_path, strlen(real_path) };
if (auto index = time_zone.find(zoneinfo); index.has_value()) if (auto index = time_zone.find(zoneinfo); index.has_value())
time_zone = time_zone.substring_view(*index + zoneinfo.length()); time_zone = time_zone.substring_view(*index + zoneinfo.length());