| #!/bin/bash |
| # Download the list of company IDs from bluetooth.org and generate a diff which |
| # can be applied to source tree to update bt_compidtostr(). Usage: |
| # |
| # 1) ./tools/update_compids.sh | git apply -p0 |
| # 2) Inspect changes to make sure they are sane |
| # 3) git commit -m "lib: Update list of company identifiers" lib/bluetooth.c |
| # |
| # Requires html2text: http://www.mbayer.de/html2text/ |
| # |
| set -e -u |
| |
| tmpdir=$(mktemp -d) |
| trap "rm -rf $tmpdir" EXIT |
| |
| mkdir $tmpdir/lib |
| cp lib/bluetooth.c $tmpdir/lib/bluetooth.c.orig |
| cp lib/bluetooth.c $tmpdir/lib/bluetooth.c |
| |
| cd $tmpdir |
| |
| path=en-us/specification/assigned-numbers/company-identifiers |
| # Use "iconv -c" to strip unwanted unicode characters |
| # Fixups: |
| # - strip <input> tags of type "checkbox" because html2text generates UTF-8 for |
| # them in some distros even when using -ascii (e.g. Fedora) |
| # - replace " " (non-breaking space) with whitespace manually, because |
| # some versions incorrectly convert it into "\xC2\xA0" |
| curl https://www.bluetooth.org/$path | iconv -c -f utf8 -t ascii | \ |
| sed '/<input.*type="checkbox"/d; s/ / /g' | \ |
| html2text -ascii -o identifiers.txt >/dev/null |
| |
| # Some versions of html2text do not replace & (e.g. Fedora) |
| sed -i 's/&/\&/g' identifiers.txt |
| |
| sed -n '/^const char \*bt_compidtostr(int compid)/,/^}/p' \ |
| lib/bluetooth.c > old.c |
| |
| echo -e 'const char *bt_compidtostr(int compid)\n{\n\tswitch (compid) {' > new.c |
| cat identifiers.txt | |
| perl -ne 'm/^(\d+)\s+0x[0-9a-f]+\s+(.*)/i && |
| print "\tcase $1:\n\t\treturn \"$2\";\n"' >> new.c |
| if ! grep -q "return \"" new.c; then |
| echo "ERROR: could not parse company IDs from bluetooth.org" >&2 |
| exit 1 |
| fi |
| if [ -n "$(tr -d '[:print:]\t\n' < new.c)" ]; then |
| echo -n "ERROR: invalid non-ASCII characters found while parsing" >&2 |
| echo -n " company IDs. Please identify offending sequence and fix" >&2 |
| echo " tools/update_compids.sh accordingly." >&2 |
| exit 1 |
| fi |
| echo -e '\tcase 65535:\n\t\treturn "internal use";' >> new.c |
| echo -e '\tdefault:\n\t\treturn "not assigned";\n\t}\n}' >> new.c |
| |
| diff -Naur old.c new.c | patch -sp0 lib/bluetooth.c |
| diff -Naur lib/bluetooth.c.orig lib/bluetooth.c |