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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /build/clang-plugin/tests/TestSprintfLiteral.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-37a0381f8351b370577b65028ba1f6563ae23fdf.tar.xz firefox-esr-37a0381f8351b370577b65028ba1f6563ae23fdf.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'build/clang-plugin/tests/TestSprintfLiteral.cpp')
-rw-r--r-- | build/clang-plugin/tests/TestSprintfLiteral.cpp | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/build/clang-plugin/tests/TestSprintfLiteral.cpp b/build/clang-plugin/tests/TestSprintfLiteral.cpp new file mode 100644 index 0000000000..a8dac4009c --- /dev/null +++ b/build/clang-plugin/tests/TestSprintfLiteral.cpp @@ -0,0 +1,41 @@ +#include <cstdio> + +void bad() { + char x[100]; + snprintf(x, sizeof(x), "bar"); // expected-error {{Use SprintfLiteral instead of snprintf when writing into a character array.}} expected-note {{This will prevent passing in the wrong size to snprintf accidentally.}} + snprintf(x, 100, "bar"); // expected-error {{Use SprintfLiteral instead of snprintf when writing into a character array.}} expected-note {{This will prevent passing in the wrong size to snprintf accidentally.}} + const int hundred = 100; + snprintf(x, hundred, "bar"); // expected-error {{Use SprintfLiteral instead of snprintf when writing into a character array.}} expected-note {{This will prevent passing in the wrong size to snprintf accidentally.}} +} + +void ok() { + char x[100]; + int y; + snprintf(x, sizeof(y), "what"); + + snprintf(x, 50, "what"); + + int nothundred = 100; + nothundred = 99; + snprintf(x, nothundred, "what"); +} + +void vargs_bad(va_list args) { + char x[100]; + vsnprintf(x, sizeof(x), "bar", args); // expected-error {{Use VsprintfLiteral instead of vsnprintf when writing into a character array.}} expected-note {{This will prevent passing in the wrong size to vsnprintf accidentally.}} + vsnprintf(x, 100, "bar", args); // expected-error {{Use VsprintfLiteral instead of vsnprintf when writing into a character array.}} expected-note {{This will prevent passing in the wrong size to vsnprintf accidentally.}} + const int hundred = 100; + vsnprintf(x, hundred, "bar", args); // expected-error {{Use VsprintfLiteral instead of vsnprintf when writing into a character array.}} expected-note {{This will prevent passing in the wrong size to vsnprintf accidentally.}} +} + +void vargs_good(va_list args) { + char x[100]; + int y; + vsnprintf(x, sizeof(y), "what", args); + + vsnprintf(x, 50, "what", args); + + int nothundred = 100; + nothundred = 99; + vsnprintf(x, nothundred, "what", args); +} |