russell@unturf.com
db29a08762
B&W print-friendly diagrams + tinkerpop-0001 + wave-3 proof sections. Squash of 94 local commits onto remote master.
41 lines
1.7 KiB
Bash
Executable file
41 lines
1.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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# CWE-407 scan — PostgreSQL query planner and executor
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# PostgreSQL uses its own list API: list_member(), foreach()/lfirst(), lappend()
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# Strategy: lead with pg-specific O(n) membership calls, check ±20 lines for loop context.
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set -euo pipefail
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echo "# scan=postgresql host=$(hostname) date=$(date -u +%Y-%m-%dT%H:%M:%SZ)"
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cd /tmp && git clone --depth 1 https://github.com/postgres/postgres postgres 2>&1 | tail -1
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# O(n) membership patterns in PostgreSQL's list API
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PG_MEM='list_member\b|list_member_ptr\b|list_member_int\b|list_member_oid\b|list_member_xid\b'
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# Loop constructs that would make the above O(n²)
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PG_LOOP='foreach\b|for\s*\(.*List\|while\s*\(.*List\|do\s*{.*List'
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for dir in \
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src/backend/optimizer \
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src/backend/nodes \
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src/backend/rewrite \
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src/backend/executor \
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src/backend/parser \
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src/backend/planner; do
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[ -d /tmp/postgres/$dir ] || continue
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echo "# roots: /tmp/postgres/$dir"
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find /tmp/postgres/$dir -name "*.c" -o -name "*.h" 2>/dev/null | sort | while IFS= read -r f; do
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# Find all list_member* call sites
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ml=$(grep -nE "$PG_MEM" "$f" 2>/dev/null | cut -d: -f1 || true)
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[ -z "$ml" ] && continue
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while IFS= read -r ln; do
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s=$(( ln > 20 ? ln - 20 : 1 )); e=$(( ln + 20 ))
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ctx=$(sed -n "${s},${e}p" "$f" 2>/dev/null || true)
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# Emit candidate if a loop construct appears in the same ±20-line window
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loop_hit=$(echo "$ctx" | grep -iE "$PG_LOOP" | head -1 | sed 's/^\s*//' || true)
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[ -n "$loop_hit" ] && {
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mem_line=$(sed -n "${ln}p" "$f" | sed 's/^\s*//')
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echo "CANDIDATE ${f}:${ln} ${mem_line} [loop: ${loop_hit}]"
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}
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done <<< "$ml"
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done
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done
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echo "# scan complete"
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