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LibC: Fix timeradd and timersub overflow/underflow

This commit is contained in:
Bananymous 2026-01-06 16:03:41 +02:00
parent d970debb4d
commit 3e19c3b62e
1 changed files with 8 additions and 4 deletions
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12
userspace/libraries/LibC/include/sys/time.h
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@ -37,16 +37,20 @@ int utimes(const char* path, const struct timeval times[2]);
do { \
(res)->tv_sec = (a)->tv_sec + (b)->tv_sec; \
(res)->tv_usec = (a)->tv_usec + (b)->tv_usec; \
(res)->tv_sec += (res)->tv_usec / 1000000; \
(res)->tv_usec %= 1000000; \
if ((res)->tv_usec >= 1000000) { \
(res)->tv_sec++; \
(res)->tv_usec -= 1000000; \
} \
} while (0)
#define timersub(a, b, res) \
do { \
(res)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
(res)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
(res)->tv_sec += (res)->tv_usec / 1000000; \
(res)->tv_usec %= 1000000; \
if ((res)->tv_usec < 0) { \
(res)->tv_sec--; \
(res)->tv_usec += 1000000; \
} \
} while (0)
#define timerclear(tvp) \