1c05c95739
Summary: Add fgets, fputs and puts to sanitizer_common. This adds ASAN coverage for these functions, extends MSAN support from fgets to fputs/puts and extends TSAN support from puts to fputs. Fixes: https://github.com/google/sanitizers/issues/952 Reviewed By: vitalybuka Differential Revision: https://reviews.llvm.org/D46545 llvm-svn: 334450
48 lines
913 B
C++
48 lines
913 B
C++
// RUN: %clangxx_msan -g %s -o %t
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// RUN: %run %t
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// RUN: not %run %t 2 2>&1 | FileCheck %s --check-prefix=CHECK-FPUTS
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// RUN: not %run %t 3 3 2>&1 | FileCheck %s --check-prefix=CHECK-PUTS
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int test_fgets() {
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FILE *fp = fopen("/dev/zero", "r");
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char c;
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if (!fgets(&c, 1, fp))
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return 1;
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if (c == '1') // No error
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return 2;
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fclose(fp);
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return 0;
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}
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int test_fputs() {
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FILE *fp = fopen("/dev/null", "w");
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char buf[2];
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fputs(buf, fp); // BOOM
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return fclose(fp);
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}
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void test_puts() {
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char buf[2];
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puts(buf); // BOOM
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}
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int main(int argc, char *argv[]) {
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if (argc == 1)
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test_fgets();
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else if (argc == 2)
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test_fputs();
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else
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test_puts();
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return 0;
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}
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// CHECK-FPUTS: Uninitialized bytes in __interceptor_fputs at offset 0 inside
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// CHECK-PUTS: Uninitialized bytes in __interceptor_puts at offset 0 inside
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