9694a71767
* vlib/os: build executable() path from the readlink length, not a NUL scan readlink never appends a terminator, but the Linux, NetBSD and DragonFly branches passed the buffer to tos_clone, which scans for one with vstrlen. A link target filling the whole buffer over-reads the stack, and a truncated over-long path is silently returned. Use the returned byte count via vstring_with_len().clone(), the same pattern db.mysql and others use. The FreeBSD sysctl branch is a different API and is left alone. Fixes https://github.com/vlang/v/issues/30158 * os: cover executable path identity and document readlink lengths --------- Co-authored-by: qp <168933756+gabytz777@users.noreply.github.com> Co-authored-by: Alexander Medvednikov <alexander@medvednikov.com>
10 lines
253 B
V
10 lines
253 B
V
import os
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fn test_executable_returns_complete_process_path() {
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executable := os.executable()
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assert executable.len > 0
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assert !executable.contains('\x00')
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assert os.is_file(executable)
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assert os.real_path(executable) == os.real_path(os.args[0])
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}
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