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More stdio rules (fputc, fputs, puts, fileno) #126

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Merged
nunoplopes merged 4 commits into from
May 20, 2026
Merged

More stdio rules (fputc, fputs, puts, fileno) #126

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2a45902
Add rules + tests for fputc/fputs
lucic71 May 19, 2026
c2760c5
Add rules + tests for puts/fileno
lucic71 May 19, 2026
5989eff
Add unlink TODO
lucic71 May 19, 2026
17a7bab
format
lucic71 May 19, 2026
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299 changes: 299 additions & 0 deletions rules/stdio/ir_unsafe.json
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Original file line number Diff line number Diff line change
Expand Up @@ -264,6 +264,305 @@
"is_unsafe_pointer": true
}
},
"f11": {
"body": [
{
"text": "match "
},
{
"method_call": {
"receiver": [
{
"text": "(*"
},
{
"placeholder": {
"arg": 1,
"access": "write"
}
},
{
"text": ")"
}
],
"body": [
{
"text": ".write_all(&["
},
{
"placeholder": {
"arg": 0,
"access": "read"
}
},
{
"text": " as u8])"
}
]
}
},
{
"text": " {\n Ok(()) => "
},
{
"placeholder": {
"arg": 0,
"access": "read"
}
},
{
"text": " & 0xff,\n Err(_) => -1,\n }"
}
],
"params": {
"a0": {
"type": "i32"
},
"a1": {
"type": "*mut ::std::fs::File",
"is_unsafe_pointer": true
}
},
"return_type": {
"type": "i32"
}
},
"f12": {
"body": [
{
"text": "let bytes = "
},
{
"method_call": {
"receiver": [
{
"text": "std::ffi::CStr::from_ptr("
},
{
"placeholder": {
"arg": 0,
"access": "read"
}
},
{
"text": " as *const i8)"
}
],
"body": [
{
"text": ".to_bytes()"
}
]
}
},
{
"text": ";\n match "
},
{
"method_call": {
"receiver": [
{
"text": "(*"
},
{
"placeholder": {
"arg": 1,
"access": "write"
}
},
{
"text": ")"
}
],
"body": [
{
"text": ".write_all(bytes)"
}
]
}
},
{
"text": " {\n Ok(()) => 0,\n Err(_) => -1,\n }"
}
],
"multi_statement": true,
"params": {
"a0": {
"type": "*const u8",
"is_unsafe_pointer": true
},
"a1": {
"type": "*mut ::std::fs::File",
"is_unsafe_pointer": true
}
},
"return_type": {
"type": "i32"
}
},
"f13": {
"body": [
{
"text": "let bytes = "
},
{
"method_call": {
"receiver": [
{
"text": "std::ffi::CStr::from_ptr("
},
{
"placeholder": {
"arg": 0,
"access": "read"
}
},
{
"text": " as *const i8)"
}
],
"body": [
{
"text": ".to_bytes()"
}
]
}
},
{
"text": ";\n let stdout = libcc2rs::cout_unsafe();\n let r1 = "
},
{
"method_call": {
"receiver": [
{
"text": "(*stdout)"
}
],
"body": [
{
"text": ".write_all(bytes)"
}
]
}
},
{
"text": ";\n let r2 = "
},
{
"method_call": {
"receiver": [
{
"text": "(*stdout)"
}
],
"body": [
{
"text": ".write_all(b\"\\n\")"
}
]
}
},
{
"text": ";\n if "
},
{
"method_call": {
"receiver": [
{
"text": "r1"
}
],
"body": [
{
"text": ".is_ok()"
}
]
}
},
{
"text": " && "
},
{
"method_call": {
"receiver": [
{
"text": "r2"
}
],
"body": [
{
"text": ".is_ok()"
}
]
}
},
{
"text": " { 0 } else { -1 }"
}
],
"multi_statement": true,
"params": {
"a0": {
"type": "*const u8",
"is_unsafe_pointer": true
}
},
"return_type": {
"type": "i32"
}
},
"f14": {
"body": [
{
"text": "if "
},
{
"placeholder": {
"arg": 0,
"access": "read"
}
},
{
"text": " == libcc2rs::cin_unsafe() {\n 0\n } else if "
},
{
"placeholder": {
"arg": 0,
"access": "read"
}
},
{
"text": " == libcc2rs::cout_unsafe() {\n 1\n } else if "
},
{
"placeholder": {
"arg": 0,
"access": "read"
}
},
{
"text": " == libcc2rs::cerr_unsafe() {\n 2\n } else {\n ::std::os::fd::AsRawFd::as_raw_fd(&*"
},
{
"placeholder": {
"arg": 0,
"access": "read"
}
},
{
"text": ")\n }"
}
],
"params": {
"a0": {
"type": "*mut ::std::fs::File",
"is_unsafe_pointer": true
}
},
"return_type": {
"type": "i32"
}
},
"f2": {
"body": [
{
Expand Down
8 changes: 8 additions & 0 deletions rules/stdio/src.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -32,3 +32,11 @@ FILE *f8() { return stdout; }
FILE *f9() { return stderr; }

FILE *f10() { return stdin; }

int f11(int c, FILE *stream) { return fputc(c, stream); }

int f12(const char *s, FILE *stream) { return fputs(s, stream); }

int f13(const char *s) { return puts(s); }

int f14(FILE *stream) { return fileno(stream); }
35 changes: 35 additions & 0 deletions rules/stdio/tgt_unsafe.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -105,3 +105,38 @@ unsafe fn f9() -> *mut ::std::fs::File {
unsafe fn f10() -> *mut ::std::fs::File {
libcc2rs::cin_unsafe()
}

unsafe fn f11(a0: i32, a1: *mut ::std::fs::File) -> i32 {
match (*a1).write_all(&[a0 as u8]) {
Ok(()) => a0 & 0xff,
Err(_) => -1,
}
}

unsafe fn f12(a0: *const u8, a1: *mut ::std::fs::File) -> i32 {
let bytes = std::ffi::CStr::from_ptr(a0 as *const i8).to_bytes();
match (*a1).write_all(bytes) {
Ok(()) => 0,
Err(_) => -1,
}
}

unsafe fn f13(a0: *const u8) -> i32 {
let bytes = std::ffi::CStr::from_ptr(a0 as *const i8).to_bytes();
let stdout = libcc2rs::cout_unsafe();
let r1 = (*stdout).write_all(bytes);
let r2 = (*stdout).write_all(b"\n");
if r1.is_ok() && r2.is_ok() { 0 } else { -1 }
}

unsafe fn f14(a0: *mut ::std::fs::File) -> i32 {
if a0 == libcc2rs::cin_unsafe() {
0
} else if a0 == libcc2rs::cout_unsafe() {
1
} else if a0 == libcc2rs::cerr_unsafe() {
2
} else {
::std::os::fd::AsRawFd::as_raw_fd(&*a0)
}
}
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