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RedBear-OS/local/recipes/dev/libclc/source/clang/test/Analysis/stream-noopen.c
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class) 
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

316 lines
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// RUN: %clang_analyze_cc1 -verify %s \
// RUN: -analyzer-checker=core \
// RUN: -analyzer-checker=unix.Errno \
// RUN: -analyzer-checker=unix.Stream \
// RUN: -analyzer-checker=unix.StdCLibraryFunctions \
// RUN: -analyzer-config unix.StdCLibraryFunctions:ModelPOSIX=true \
// RUN: -analyzer-checker=debug.ExprInspection
// enable only StdCLibraryFunctions checker
// RUN: %clang_analyze_cc1 -verify %s \
// RUN: -analyzer-checker=core \
// RUN: -analyzer-checker=unix.Errno \
// RUN: -analyzer-checker=unix.StdCLibraryFunctions \
// RUN: -analyzer-config unix.StdCLibraryFunctions:ModelPOSIX=true \
// RUN: -analyzer-checker=debug.ExprInspection
#include "Inputs/system-header-simulator.h"
#include "Inputs/errno_var.h"
void clang_analyzer_eval(int);
const char *WBuf = "123456789";
char RBuf[10];
void test_freopen(FILE *F) {
F = freopen("xxx", "w", F);
if (F) {
if (errno) {} // expected-warning{{undefined}}
} else {
clang_analyzer_eval(errno != 0); // expected-warning {{TRUE}}
}
}
void test_fread(FILE *F) {
size_t Ret = fread(RBuf, 1, 10, F);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
if (Ret == 10) {
if (errno) {} // expected-warning{{undefined}}
} else {
clang_analyzer_eval(Ret < 10); // expected-warning {{TRUE}}
clang_analyzer_eval(errno != 0); // expected-warning {{TRUE}}
}
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
}
void test_fwrite(FILE *F) {
size_t Ret = fwrite(WBuf, 1, 10, F);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
if (Ret == 10) {
if (errno) {} // expected-warning{{undefined}}
} else {
clang_analyzer_eval(Ret < 10); // expected-warning {{TRUE}}
clang_analyzer_eval(errno != 0); // expected-warning {{TRUE}}
}
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
}
void test_fgetc(FILE *F) {
int Ret = fgetc(F);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
if (Ret != EOF) {
if (errno) {} // expected-warning {{undefined}}
} else {
clang_analyzer_eval(errno != 0); // expected-warning {{TRUE}}
// expected-warning@-1 {{FALSE}}
}
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
}
void test_fputc(FILE *F) {
int Ret = fputc('a', F);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
if (Ret != EOF) {
clang_analyzer_eval(Ret == 'a'); // expected-warning {{TRUE}}
if (errno) {} // expected-warning {{undefined}}
} else {
clang_analyzer_eval(errno != 0); // expected-warning {{TRUE}}
}
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
}
void test_fgets(char *Buf, int N, FILE *F) {
char *Ret = fgets(Buf, N, F);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
clang_analyzer_eval(Buf != NULL); // expected-warning {{TRUE}}
clang_analyzer_eval(N >= 0); // expected-warning {{TRUE}}
if (Ret == Buf) {
if (errno) {} // expected-warning {{undefined}}
} else {
clang_analyzer_eval(Ret == 0); // expected-warning {{TRUE}}
clang_analyzer_eval(errno != 0); // expected-warning {{TRUE}}
// expected-warning@-1 {{FALSE}}
}
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
char Buf1[10];
Ret = fgets(Buf1, 11, F); // expected-warning {{The 1st argument to 'fgets' is a buffer with size 10}}
}
void test_fgets_bufsize(FILE *F) {
char Buf[10];
fgets(Buf, 11, F); // expected-warning {{The 1st argument to 'fgets' is a buffer with size 10}}
}
void test_fputs(char *Buf, FILE *F) {
int Ret = fputs(Buf, F);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
clang_analyzer_eval(Buf != NULL); // expected-warning {{TRUE}}
if (Ret >= 0) {
if (errno) {} // expected-warning {{undefined}}
} else {
clang_analyzer_eval(Ret == EOF); // expected-warning {{TRUE}}
clang_analyzer_eval(errno != 0); // expected-warning {{TRUE}}
}
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
}
void test_ungetc(FILE *F) {
int Ret = ungetc('X', F);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
if (Ret == 'X') {
if (errno) {} // expected-warning {{undefined}}
} else {
clang_analyzer_eval(Ret == EOF); // expected-warning {{TRUE}}
clang_analyzer_eval(errno != 0); // expected-warning {{TRUE}}
}
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
}
void test_ungetc_EOF(FILE *F, int C) {
int Ret = ungetc(EOF, F);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
clang_analyzer_eval(Ret == EOF); // expected-warning {{TRUE}}
clang_analyzer_eval(errno != 0); // expected-warning {{TRUE}}
Ret = ungetc(C, F);
if (Ret == EOF) {
clang_analyzer_eval(C == EOF); // expected-warning {{TRUE}}
// expected-warning@-1{{FALSE}}
}
}
void test_fclose(FILE *F) {
int Ret = fclose(F);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
if (Ret == 0) {
if (errno) {} // expected-warning{{undefined}}
} else {
clang_analyzer_eval(Ret == EOF); // expected-warning {{TRUE}}
clang_analyzer_eval(errno != 0); // expected-warning {{TRUE}}
}
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
}
void test_fseek(FILE *F) {
int Ret = fseek(F, SEEK_SET, 1);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
if (Ret == 0) {
if (errno) {} // expected-warning{{undefined}}
} else {
clang_analyzer_eval(Ret == -1); // expected-warning {{TRUE}}
clang_analyzer_eval(errno != 0); // expected-warning {{TRUE}}
}
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
}
void check_fgetpos(FILE *F) {
errno = 0;
fpos_t Pos;
int Ret = fgetpos(F, &Pos);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
if (Ret)
clang_analyzer_eval(errno != 0); // expected-warning{{TRUE}}
else
clang_analyzer_eval(errno == 0); // expected-warning{{TRUE}}
// expected-warning@-1{{FALSE}}
if (errno) {} // no-warning
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
}
void check_fsetpos(FILE *F) {
errno = 0;
fpos_t Pos;
int Ret = fsetpos(F, &Pos);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
if (Ret)
clang_analyzer_eval(errno != 0); // expected-warning{{TRUE}}
else
clang_analyzer_eval(errno == 0); // expected-warning{{TRUE}}
// expected-warning@-1{{FALSE}}
if (errno) {} // no-warning
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
}
void check_ftell(FILE *F) {
errno = 0;
long Ret = ftell(F);
clang_analyzer_eval(F != NULL); // expected-warning {{TRUE}}
if (Ret == -1) {
clang_analyzer_eval(errno != 0); // expected-warning{{TRUE}}
} else {
clang_analyzer_eval(errno == 0); // expected-warning{{TRUE}}
// expected-warning@-1{{FALSE}}
clang_analyzer_eval(Ret >= 0); // expected-warning{{TRUE}}
}
if (errno) {} // no-warning
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
}
void test_rewind(FILE *F) {
errno = 0;
rewind(F);
clang_analyzer_eval(F != NULL); // expected-warning{{TRUE}}
clang_analyzer_eval(errno == 0); // expected-warning{{TRUE}}
// expected-warning@-1{{FALSE}}
rewind(F);
}
void test_fflush(FILE *F) {
errno = 0;
int Ret = fflush(F);
clang_analyzer_eval(F != NULL); // expected-warning{{TRUE}}
// expected-warning@-1{{FALSE}}
if (Ret == EOF) {
clang_analyzer_eval(errno != 0); // expected-warning{{TRUE}}
} else {
clang_analyzer_eval(Ret == 0); // expected-warning{{TRUE}}
clang_analyzer_eval(errno == 0); // expected-warning{{TRUE}}
// expected-warning@-1{{FALSE}}
}
}
void test_feof(FILE *F) {
errno = 0;
feof(F);
clang_analyzer_eval(F != NULL); // expected-warning{{TRUE}}
if (errno) {} // no-warning
clang_analyzer_eval(errno == 0); // expected-warning{{TRUE}}
// expected-warning@-1{{FALSE}}
}
void test_ferror(FILE *F) {
errno = 0;
ferror(F);
clang_analyzer_eval(F != NULL); // expected-warning{{TRUE}}
if (errno) {} // no-warning
clang_analyzer_eval(errno == 0); // expected-warning{{TRUE}}
// expected-warning@-1{{FALSE}}
}
void test_clearerr(FILE *F) {
errno = 0;
clearerr(F);
clang_analyzer_eval(F != NULL); // expected-warning{{TRUE}}
if (errno) {} // no-warning
clang_analyzer_eval(errno == 0); // expected-warning{{TRUE}}
// expected-warning@-1{{FALSE}}
}
void test_fileno(FILE *F) {
errno = 0;
int A = fileno(F);
clang_analyzer_eval(F != NULL); // expected-warning{{TRUE}}
clang_analyzer_eval(A >= 0); // expected-warning{{TRUE}}
if (errno) {} // no-warning
clang_analyzer_eval(errno == 0); // expected-warning{{TRUE}}
// expected-warning@-1{{FALSE}}
}
void freadwrite_zerosize(FILE *F) {
fwrite(WBuf, 1, 0, F);
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
fwrite(WBuf, 0, 1, F);
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
fread(RBuf, 1, 0, F);
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
fread(RBuf, 0, 1, F);
clang_analyzer_eval(feof(F)); // expected-warning {{UNKNOWN}}
clang_analyzer_eval(ferror(F)); // expected-warning {{UNKNOWN}}
}
void freadwrite_zerosize_errno(FILE *F, int A) {
switch (A) {
case 1:
fwrite(WBuf, 1, 0, F);
if (errno) {} // expected-warning{{undefined}}
break;
case 2:
fwrite(WBuf, 0, 1, F);
if (errno) {} // expected-warning{{undefined}}
break;
case 3:
fread(RBuf, 1, 0, F);
if (errno) {} // expected-warning{{undefined}}
break;
case 4:
fread(RBuf, 0, 1, F);
if (errno) {} // expected-warning{{undefined}}
break;
}
}
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