Add fmtmsg
This commit is contained in:
Mustafa öz
committed by
Mathew John Roberts
Mathew John Roberts
parent
c1912066a1
commit
03d56f4887
@@ -0,0 +1,9 @@
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sys_includes = []
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include_guard = "_RELIBC_FMTMSG_H"
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language = "C"
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style = "Tag"
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no_includes = true
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cpp_compat = true
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[enum]
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prefix_with_name = true
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@@ -0,0 +1,167 @@
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//! `fmtmsg.h` implementation.
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//!
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//! See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/fmtmsg.h.html>.
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//! Ported from Musl.
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//!
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//! See <https://github.com/kraj/musl/blob/kraj/master/src/misc/fmtmsg.c>
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use crate::{
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header::{
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fcntl::open,
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pthread::{PTHREAD_CANCEL_DISABLE, pthread_setcancelstate},
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stdio::dprintf,
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stdlib::getenv,
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string::strchr,
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unistd::close,
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},
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platform::types::{c_char, c_int, c_long},
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};
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pub const MM_NULLSEV: c_int = 0;
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pub const MM_HALT: c_int = 1;
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pub const MM_ERROR: c_int = 2;
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pub const MM_WARNING: c_int = 3;
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pub const MM_INFO: c_int = 4;
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pub const MM_NOMSG: c_int = 1;
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pub const MM_NOTOK: c_int = -1;
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// c_long because classification is a c_long
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pub const MM_PRINT: c_long = 256;
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// c_long because classification is a c_long
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pub const MM_CONSOLE: c_long = 512;
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pub const MM_NOCON: c_int = 4;
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#[cfg(target_os = "linux")]
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pub const O_WRONLY: c_int = 0x0001;
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#[cfg(target_os = "redox")]
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//Take from `src/header/fcntl/redox.rs`
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pub const O_WRONLY: c_int = 0x0002_0000;
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/*
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* If lstr is the first part of bstr, check that the next char in bstr
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* is either \0 or ':'
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*/
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unsafe fn strcolcmp(mut lstr: *const c_char, mut bstr: *const c_char) -> c_int {
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unsafe {
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// We already know lstr and bstr are non-null
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while *lstr != 0 && *bstr != 0 && (*lstr == *bstr) {
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lstr = lstr.add(1);
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bstr = bstr.add(1);
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}
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if *lstr != 0 || (*bstr != 0 && *bstr != b':' as c_char) {
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1
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} else {
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0
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}
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}
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}
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/// See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/fmtmsg.h.html>
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#[unsafe(no_mangle)]
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pub unsafe extern "C" fn fmtmsg(
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classification: c_long,
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label: *const c_char,
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severity: c_int,
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text: *const c_char,
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action: *const c_char,
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tag: *const c_char,
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) -> c_int {
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let mut ret: c_int = 0;
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let mut verb: c_int = 0;
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let mut i: usize;
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let consolefd: c_int;
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let mut cs: c_int = 0;
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unsafe {
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pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &mut cs as *mut c_int);
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}
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let mut cmsg = unsafe { getenv(c"MSGVERB".as_ptr()) };
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let errstring: *const c_char = match severity {
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MM_HALT => c"HALT: ".as_ptr(),
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MM_ERROR => c"ERROR: ".as_ptr(),
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MM_WARNING => c"WARNING: ".as_ptr(),
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MM_INFO => c"INFO: ".as_ptr(),
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_ => MM_NULLSEV as _, // Default
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};
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let msgs: [*const c_char; 6] = [
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c"label".as_ptr(),
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c"severity".as_ptr(),
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c"text".as_ptr(),
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c"action".as_ptr(),
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c"tag".as_ptr(),
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core::ptr::null(),
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];
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if (classification & MM_CONSOLE) != 0 {
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//TODO: rusty
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unsafe {
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consolefd = open(c"/dev/console".as_ptr(), O_WRONLY);
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if consolefd < 0 {
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ret = MM_NOCON;
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} else {
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#[rustfmt::skip]
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let status = dprintf(
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consolefd,
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c"%s%s%s%s%s%s%s%s\n".as_ptr(),
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if !label.is_null() {label } else { c"".as_ptr()},
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if !label.is_null() {c": ".as_ptr()} else { c"".as_ptr() },
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if severity != 0 { errstring } else { c"".as_ptr()},
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if !text.is_null() { text } else { c"".as_ptr() },
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if !action.is_null() {c"\nTO FIX: ".as_ptr()} else { c"".as_ptr()},
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if !action.is_null() {action} else {c"".as_ptr()},
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if !action.is_null() {c" ".as_ptr()} else { c"".as_ptr()},
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if !tag.is_null() { tag } else { c"".as_ptr() },
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);
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if status < 1 {
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ret = MM_NOCON;
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}
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close(consolefd);
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}
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}
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}
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if (classification & MM_PRINT) != 0 {
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unsafe {
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while !cmsg.is_null() && *cmsg != 0 {
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i = 0;
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loop {
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if msgs[i].is_null() {
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break;
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}
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if strcolcmp(msgs[i], cmsg) == 0 {
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break;
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}
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i += 1;
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}
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if msgs[i].is_null() {
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//ignore MSGVERB-unrecognized component
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verb = 0xFF;
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break;
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} else {
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verb |= 1 << i;
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cmsg = strchr(cmsg, b':' as _);
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if !cmsg.is_null() {
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cmsg = cmsg.add(1);
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}
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}
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}
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if verb == 0 {
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verb = 0xFF;
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}
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#[rustfmt::skip]
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let status = dprintf(2,c"%s%s%s%s%s%s%s%s\n".as_ptr(),
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if (verb & 1 != 0) && !label.is_null() { label } else { c"".as_ptr() },
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if (verb & 1 != 0) && !label.is_null() { c": ".as_ptr() } else { c"".as_ptr() },
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if (verb & 2 != 0) && severity != 0 { errstring } else { c"".as_ptr() },
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if (verb & 4 != 0) && !text.is_null() { text } else { c"".as_ptr() },
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if (verb & 8 != 0) && !action.is_null() { c"\nTO FIX: ".as_ptr() } else { c"".as_ptr() },
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if (verb & 8 != 0) && !action.is_null() { action } else { c"".as_ptr() },
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if (verb & 8 != 0) && !action.is_null() { c" ".as_ptr() } else { c"".as_ptr() },
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if (verb & 16 != 0) && !tag.is_null() { tag } else { c"".as_ptr() },
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);
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if status < 1 {
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ret |= MM_NOMSG;
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}
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}
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}
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if ret & (MM_NOCON | MM_NOMSG) == (MM_NOCON | MM_NOMSG) {
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ret = MM_NOTOK;
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}
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unsafe {
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pthread_setcancelstate(cs, 0 as _);
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}
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ret
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}
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+1
-1
@@ -32,7 +32,7 @@ pub mod err;
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pub mod errno;
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pub mod fcntl;
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pub mod float;
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// TODO: fmtmsg.h
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pub mod fmtmsg;
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pub mod fnmatch;
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// TODO: ftw.h
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pub mod getopt;
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@@ -208,7 +208,8 @@ EXPECT_NAMES=\
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wctype/towlower \
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wctype/towupper \
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mknod \
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mknodat
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mknodat \
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fmtmsg
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# Binaries that may generate varied output
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VARIED_NAMES=\
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@@ -0,0 +1,4 @@
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XSI:cat: ERROR: illegal option
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TO FIX: refer to cat in user's reference manual XSI:cat:001
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XSI:cat: ERROR: illegal option
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TO FIX: refer to cat in user's reference manual XSI:cat:001
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@@ -0,0 +1,39 @@
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#include <fmtmsg.h>
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#include <unistd.h>
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int main() {
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/* Returned Value
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* MM_OK: 0 - The function succeeded.
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* MM_NOCON: 4 - The function was unable to generate a console message, but otherwise succeeded.
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* MM_NOMSG: 1 - The function was unable to generate a message on standard error, but otherwise succeeded.
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* MM_NOTOK: -1 - The function failed completely.
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*
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* Take from: https://www.ibm.com/docs/en/zos/3.1.0?topic=functions-fmtmsg-display-message-in-specified-format
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*/
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int mm_ok = fmtmsg(MM_PRINT, "XSI:cat", MM_ERROR, "illegal option",
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"refer to cat in user's reference manual", "XSI:cat:001");
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if (mm_ok != 0) {
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return -1;
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}
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// Thats return 0 in glibc but return 4 in musl
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// So we expect 4 here
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int mm_nocon = fmtmsg(MM_PRINT | MM_CONSOLE, "XSI:cat", MM_ERROR, "illegal option",
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"refer to cat in user's reference manual", "XSI:cat:001");
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if (mm_nocon != MM_NOCON) {
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return -1;
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}
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//We close stderr to test.
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close(STDERR_FILENO);
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int mm_nomsg = fmtmsg(MM_PRINT , "XSI:cat", MM_ERROR, "illegal option",
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"refer to cat in user's reference manual", "XSI:cat:001");
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if (mm_nomsg != MM_NOMSG) {
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return -1;
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}
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// Thats return 1 in glibc but return -1 in musl
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// Soo we expect -1 here
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int mm_notok = fmtmsg(MM_PRINT | MM_CONSOLE, "XSI:cat", MM_ERROR, "illegal option",
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"refer to cat in user's reference manual", "XSI:cat:001");
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if (mm_notok != MM_NOTOK) {
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return -1;
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}
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return 0;
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}
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