| // RUN: %check_clang_tidy %s bugprone-not-null-terminated-result %t -- \ |
| // RUN: -- -std=c11 -I %S/Inputs/bugprone-not-null-terminated-result |
| |
| #include "not-null-terminated-result-c.h" |
| |
| #define __STDC_LIB_EXT1__ 1 |
| #define __STDC_WANT_LIB_EXT1__ 1 |
| |
| //===----------------------------------------------------------------------===// |
| // memcpy() - destination array tests |
| //===----------------------------------------------------------------------===// |
| |
| void bad_memcpy_not_just_char_dest(const char *src) { |
| unsigned char dest00[13]; |
| memcpy(dest00, src, strlen(src)); |
| // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the result from calling 'memcpy' is not null-terminated [bugprone-not-null-terminated-result] |
| // CHECK-FIXES: unsigned char dest00[14]; |
| // CHECK-FIXES-NEXT: strcpy_s((char *)dest00, 14, src); |
| } |
| |
| void good_memcpy_not_just_char_dest(const char *src) { |
| unsigned char dst00[14]; |
| strcpy_s((char *)dst00, 14, src); |
| } |
| |
| void bad_memcpy_known_dest(const char *src) { |
| char dest01[13]; |
| memcpy(dest01, src, strlen(src)); |
| // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the result from calling 'memcpy' is not null-terminated [bugprone-not-null-terminated-result] |
| // CHECK-FIXES: char dest01[14]; |
| // CHECK-FIXES: strcpy_s(dest01, 14, src); |
| } |
| |
| void good_memcpy_known_dest(const char *src) { |
| char dst01[14]; |
| strcpy_s(dst01, 14, src); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // memcpy() - length tests |
| //===----------------------------------------------------------------------===// |
| |
| void bad_memcpy_full_source_length(const char *src) { |
| char dest20[13]; |
| memcpy(dest20, src, strlen(src)); |
| // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the result from calling 'memcpy' is not null-terminated [bugprone-not-null-terminated-result] |
| // CHECK-FIXES: char dest20[14]; |
| // CHECK-FIXES-NEXT: strcpy_s(dest20, 14, src); |
| } |
| |
| void good_memcpy_full_source_length(const char *src) { |
| char dst20[14]; |
| strcpy_s(dst20, 14, src); |
| } |
| |
| void bad_memcpy_partial_source_length(const char *src) { |
| char dest21[13]; |
| memcpy(dest21, src, strlen(src) - 1); |
| // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the result from calling 'memcpy' is not null-terminated [bugprone-not-null-terminated-result] |
| // CHECK-FIXES: char dest21[14]; |
| // CHECK-FIXES-NEXT: strncpy_s(dest21, 14, src, strlen(src) - 1); |
| } |
| |
| void good__memcpy_partial_source_length(const char *src) { |
| char dst21[14]; |
| strncpy_s(dst21, 14, src, strlen(src) - 1); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // memcpy_s() - destination array tests |
| //===----------------------------------------------------------------------===// |
| |
| void bad_memcpy_s_unknown_dest(char *dest40, const char *src) { |
| memcpy_s(dest40, 13, src, strlen(src)); |
| // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the result from calling 'memcpy_s' is not null-terminated [bugprone-not-null-terminated-result] |
| // CHECK-FIXES: strcpy_s(dest40, 13, src); |
| } |
| |
| void good_memcpy_s_unknown_dest(char *dst40, const char *src) { |
| strcpy_s(dst40, 13, src); |
| } |
| |
| void bad_memcpy_s_known_dest(const char *src) { |
| char dest41[13]; |
| memcpy_s(dest41, 13, src, strlen(src)); |
| // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the result from calling 'memcpy_s' is not null-terminated [bugprone-not-null-terminated-result] |
| // CHECK-FIXES: char dest41[14]; |
| // CHECK-FIXES-NEXT: strcpy_s(dest41, 14, src); |
| } |
| |
| void good_memcpy_s_known_dest(const char *src) { |
| char dst41[14]; |
| strcpy_s(dst41, 14, src); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // memcpy_s() - length tests |
| //===----------------------------------------------------------------------===// |
| |
| void bad_memcpy_s_full_source_length(const char *src) { |
| char dest60[13]; |
| memcpy_s(dest60, 13, src, strlen(src)); |
| // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the result from calling 'memcpy_s' is not null-terminated [bugprone-not-null-terminated-result] |
| // CHECK-FIXES: char dest60[14]; |
| // CHECK-FIXES-NEXT: strcpy_s(dest60, 14, src); |
| } |
| |
| void good_memcpy_s_full_source_length(const char *src) { |
| char dst60[14]; |
| strcpy_s(dst60, 14, src); |
| } |
| |
| void bad_memcpy_s_partial_source_length(const char *src) { |
| char dest61[13]; |
| memcpy_s(dest61, 13, src, strlen(src) - 1); |
| // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: the result from calling 'memcpy_s' is not null-terminated [bugprone-not-null-terminated-result] |
| // CHECK-FIXES: char dest61[14]; |
| // CHECK-FIXES-NEXT: strncpy_s(dest61, 14, src, strlen(src) - 1); |
| } |
| |
| void good_memcpy_s_partial_source_length(const char *src) { |
| char dst61[14]; |
| strncpy_s(dst61, 14, src, strlen(src) - 1); |
| } |