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Merge branch 'sysinfo' of github.com:Kelimion/Odin into sysinfo

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This commit is contained in:
Jeroen van Rijn
2022-09-03 16:30:44 +02:00
parent 4eafb0ce7f 7a4891b6b9
commit 4367ae4acf
1 changed files with 34 additions and 61 deletions
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95
core/sys/info/platform_freebsd.odin
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@@ -3,7 +3,6 @@ package sysinfo
import sys "core:sys/unix"
import "core:intrinsics"
import "core:os"
import "core:strings"
import "core:strconv"
@@ -14,72 +13,46 @@ version_string_buf: [1024]u8
init_os_version :: proc () {
os_version.platform = .FreeBSD
// TODO(Jeroen): No need to parse /etc/os-release. Use sysctl
// kern.ostype: FreeBSD
// kern.osrelease: 13.1-RELEASE-p2
// kern.osrevision: 199506
// kern.version: FreeBSD 13.1-RELEASE-p2 GENERIC
// Try to parse `/etc/os-release` for `PRETTY_NAME="Ubuntu 20.04.3 LTS`
fd, err := os.open("/etc/os-release", os.O_RDONLY, 0)
if err != 0 {
return
}
defer os.close(fd)
os_release_buf: [2048]u8
n, read_err := os.read(fd, os_release_buf[:])
if read_err != 0 {
return
}
release := string(os_release_buf[:n])
NEEDLE :: "PRETTY_NAME=\""
pretty_start := strings.index(release, NEEDLE)
kernel_version_buf: [129]u8
b := strings.builder_from_bytes(version_string_buf[:])
if pretty_start > 0 {
for r, i in release[pretty_start + len(NEEDLE):] {
if r == '"' {
strings.write_string(&b, release[pretty_start + len(NEEDLE):][:i])
break
} else if r == '\r' || r == '\n' {
strings.write_string(&b, "Unknown FreeBSD Distro")
break
}
}
}
// Finish the string
os_version.as_string = strings.to_string(b)
NEW_UTS_LEN :: 63
UTS_Name :: struct {
sys_name: [NEW_UTS_LEN + 1]u8 `fmt:"s,0"`,
node_name: [NEW_UTS_LEN + 1]u8 `fmt:"s,0"`,
release: [NEW_UTS_LEN + 1]u8 `fmt:"s,0"`,
version: [NEW_UTS_LEN + 1]u8 `fmt:"s,0"`,
machine: [NEW_UTS_LEN + 1]u8 `fmt:"s,0"`,
domain_name: [NEW_UTS_LEN + 1]u8 `fmt:"s,0"`,
}
uts: UTS_Name
// Grab kernel info using `uname()` syscall, https://www.freebsd.org/cgi/man.cgi?query=uname&sektion=3&n=1
if intrinsics.syscall(sys.SYS_uname, uintptr(&uts)) != 0 {
// Retrieve kernel info using `sysctl`, e.g. FreeBSD 13.1-RELEASE-p2 GENERIC
mib := []i32{CTL_KERN, KERN_VERSION}
if !sysctl(mib, &kernel_version_buf) {
return
}
// Parse kernel version, as substrings of the version info in `version_string_buf`
version_bits := strings.split_n(string(cstring(&uts.node_name[0])), "-", 2, context.temp_allocator)
if len(version_bits) > 1 {
// We finished the display string, but are also using the buffer to intern the version alone.
strings.write_rune(&b, ' ')
l := strings.builder_len(b)
strings.write_string(&b, version_bits[0])
os_version.version = strings.to_string(b)[l:]
pretty_name := string(cstring(raw_data(kernel_version_buf[:])))
pretty_name = strings.trim(pretty_name, "\n")
strings.write_string(&b, pretty_name)
// Parse major, minor from node_name
// l := strings.builder_len(b)
// Retrieve kernel revision using `sysctl`, e.g. 199506
mib = []i32{CTL_KERN, KERN_OSREV}
revision: int
if !sysctl(mib, &revision) {
return
}
os_version.patch = revision
strings.write_string(&b, ", revision ")
strings.write_int(&b, revision)
// Finalize pretty name.
os_version.as_string = strings.to_string(b)
// Retrieve kernel release using `sysctl`, e.g. 13.1-RELEASE-p2
mib = []i32{CTL_KERN, KERN_OSRELEASE}
if !sysctl(mib, &kernel_version_buf) {
return
}
// Parse kernel version
release := string(cstring(raw_data(kernel_version_buf[:])))
version_bits := strings.split_n(release, "-", 2, context.temp_allocator)
if len(version_bits) > 1 {
// Parse major, minor from KERN_OSRELEASE
triplet := strings.split(version_bits[0], ".", context.temp_allocator)
if len(triplet) == 2 {
major, major_ok := strconv.parse_int(triplet[0])