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| author | Solomon Peachy <pizza@shaftnet.org> | 2024-06-20 15:22:36 -0400 |
|---|---|---|
| committer | Solomon Peachy <pizza@shaftnet.org> | 2024-06-20 15:22:36 -0400 |
| commit | b4668e2bd68fc700ca027d1c77f69b5be960daa6 (patch) | |
| tree | a40fa7277ad044b0a96a70956fe22a1a5a44b507 | |
| parent | 53a43522a367b2592e0e1a52383f0326434962d5 (diff) | |
| download | rockbox-b4668e2bd68fc700ca027d1c77f69b5be960daa6.tar.gz rockbox-b4668e2bd68fc700ca027d1c77f69b5be960daa6.zip | |
libc: Check for a null string argument in *printf
If we are passed a null string argument, use the fixed string "(null)"
instead.
Change-Id: I4f70ae76cdcac1104ff1e42dc3b1a5f03e2723fe
| -rw-r--r-- | firmware/common/vuprintf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/firmware/common/vuprintf.c b/firmware/common/vuprintf.c index a040a3f0ac..4f669b2610 100644 --- a/firmware/common/vuprintf.c +++ b/firmware/common/vuprintf.c | |||
| @@ -511,7 +511,7 @@ static inline const char * format_s(const void *str, | |||
| 511 | return NULL; /* wchar_t support for now */ | 511 | return NULL; /* wchar_t support for now */ |
| 512 | } | 512 | } |
| 513 | 513 | ||
| 514 | const char *s = str; | 514 | const char *s = str ? str : "(null)"; |
| 515 | size_t len; | 515 | size_t len; |
| 516 | /* string length may be specified by precision instead of \0- | 516 | /* string length may be specified by precision instead of \0- |
| 517 | terminated; however, don't go past a \0 if one is there */ | 517 | terminated; however, don't go past a \0 if one is there */ |