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Avoid crash when searching for empty dependency/library

This commit is contained in:
Martchus 2022-03-20 17:21:41 +01:00
parent d5e2b5489d
commit f5394db6b1
1 changed files with 12 additions and 0 deletions
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12
libpkg/data/database.cpp
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@ -286,6 +286,9 @@ std::size_t Database::packageCount() const
void Database::providingPackages(const Dependency &dependency, bool reverse, const PackageVisitorConst &visitor)
{
if (dependency.name.empty()) {
return;
}
auto providesTxn = (reverse ? m_storage->requiredDeps : m_storage->providedDeps).getROTransaction();
auto packagesTxn = m_storage->packages.getROTransaction();
for (auto [i, end] = providesTxn.equal_range<0>(dependency.name); i != end; ++i) {
@ -305,6 +308,9 @@ void Database::providingPackages(const Dependency &dependency, bool reverse, con
void Database::providingPackages(const std::string &libraryName, bool reverse, const PackageVisitorConst &visitor)
{
if (libraryName.empty()) {
return;
}
auto providesTxn = (reverse ? m_storage->requiredLibs : m_storage->providedLibs).getROTransaction();
auto packagesTxn = m_storage->packages.getROTransaction();
for (auto [i, end] = providesTxn.equal_range<0>(libraryName); i != end; ++i) {
@ -319,6 +325,9 @@ void Database::providingPackages(const std::string &libraryName, bool reverse, c
bool Database::provides(const Dependency &dependency, bool reverse) const
{
if (dependency.name.empty()) {
return false;
}
auto providesTxn = (reverse ? m_storage->requiredDeps : m_storage->providedDeps).getROTransaction();
for (auto [i, end] = providesTxn.equal_range<0>(dependency.name); i != end; ++i) {
const Dependency &providedDependency = i.value();
@ -331,6 +340,9 @@ bool Database::provides(const Dependency &dependency, bool reverse) const
bool Database::provides(const std::string &libraryName, bool reverse) const
{
if (libraryName.empty()) {
return false;
}
auto providesTxn = (reverse ? m_storage->requiredLibs : m_storage->providedLibs).getROTransaction();
return providesTxn.find<0>(libraryName) != providesTxn.end();
}