libgrapheme

Freestanding C library for unicode string handling
git clone https://git.sinitax.com/suckless/libgrapheme
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commit bdf42537c5792f6beb0360517ff378834cfd8a68
parent 5fc87aedad86a8410a360ba718096e613ddf11f6
Author: robert <robertrussell.72001@gmail.com>
Date:   Sat, 30 Jul 2022 14:29:05 -0700

Add reallocarray implementation

reallocarray is nonstandard and glibc declares it only when _GNU_SOURCE
is defined. Without this patch or _GNU_SOURCE (for glibc < 2.29) defined,
you get a segfault from reallocarray being implicitly declared with the
wrong signature.

Signed-off-by: Laslo Hunhold <dev@frign.de>

Diffstat:
Mgen/util.c | 10++++++++++
1 file changed, 10 insertions(+), 0 deletions(-)

diff --git a/gen/util.c b/gen/util.c @@ -31,6 +31,16 @@ struct break_test_payload size_t *testlen; }; +static void * +reallocarray(void *p, size_t len, size_t size) +{ + if (len > 0 && size > SIZE_MAX/len) { + errno = ENOMEM; + return NULL; + } + return realloc(p, len*size); +} + int hextocp(const char *str, size_t len, uint_least32_t *cp) {