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Fix undefined behavior in package extraction code

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This commit is contained in:
Carl Åstholm 2024-11-07 23:12:46 +01:00 committed by Ian Johnson
parent b352595aa2
commit de3db8a1a6
1 changed files with 3 additions and 3 deletions
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6
src/Package/Fetch.zig
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@ -1695,7 +1695,7 @@ const HashedFile = struct {
fn stripRoot(fs_path: []const u8, root_dir: []const u8) []const u8 {
if (root_dir.len == 0 or fs_path.len <= root_dir.len) return fs_path;
if (std.mem.eql(u8, fs_path[0..root_dir.len], root_dir) and fs_path[root_dir.len] == fs.path.sep) {
if (std.mem.eql(u8, fs_path[0..root_dir.len], root_dir) and fs.path.isSep(fs_path[root_dir.len])) {
return fs_path[root_dir.len + 1 ..];
}
@ -1810,8 +1810,8 @@ const FileHeader = struct {
}
pub fn isExecutable(self: *FileHeader) bool {
return std.mem.eql(u8, self.header[0..shebang.len], shebang) or
std.mem.eql(u8, self.header[0..elf_magic.len], elf_magic);
return std.mem.eql(u8, self.header[0..@min(self.bytes_read, shebang.len)], shebang) or
std.mem.eql(u8, self.header[0..@min(self.bytes_read, elf_magic.len)], elf_magic);
}
};