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Remove assert, add _ent_fail

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This commit is contained in:
Jōshin 2019-01-02 15:36:02 -08:00
parent 8ce0600e00
commit 1f0e431259
2 changed files with 14 additions and 8 deletions
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2
meson.build
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@ -1,4 +1,4 @@
project('libent', 'c', version: '0.1.1', license: 'MIT')
project('libent', 'c', version: '0.1.2', license: 'MIT')
inc = include_directories('include')

20
src/ent.c
View File

@ -14,7 +14,6 @@
}
#elif defined(ENT_IMPL)
# include <assert.h>
# include <errno.h>
# if defined(ENT_GETRANDOM)
# define _GNU_SOURCE
@ -35,19 +34,26 @@
# define ENT_FINI() (void) fclose(f)
# endif
static int
_ent_fail()
{
errno = EIO;
return -1;
}
int
ent_getentropy(void* buf, size_t len)
{
int r;
ENT_DEFS;
assert(len <= 256);
if (len > 256)
return _ent_fail();
ENT_INIT();
if (len != ENT_READ(buf, len)) {
ENT_FINI();
errno = EIO;
return -1;
}
r = ENT_READ(buf, len);
ENT_FINI();
if (r != len)
return _ent_fail();
return 0;
}