riscv/musl - musl - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Rich Felker	07827d1a82	fix race condition in sigqueue this race is fundamentally due to linux's bogus requirement that userspace, rather than kernelspace, fill in the siginfo structure. an intervening signal handler that calls fork could cause both the parent and child process to send signals claiming to be from the parent, which could in turn have harmful effects depending on what the recipient does with the signal. we simply block all signals for the interval between getuid and sigqueue syscalls (much like what raise() does already) to prevent the race and make the getuid/sigqueue pair atomic. this will be a non-issue if linux is fixed to validate the siginfo structure or fill it in from kernelspace.	15 years ago
Rich Felker	aa398f56fa	global cleanup to use the new syscall interface	15 years ago
Rich Felker	dc54a7cbb9	fix errors in sigqueue (potential information leak, wrong behavior) 1. any padding in the siginfo struct was not necessarily zero-filled, so it might have contained private data off the caller's stack. 2. the uid and pid must be filled in from userspace. the previous rsyscall fix broke rsyscalls because the values were always incorrect.	15 years ago
Rich Felker	0b44a0315b	initial check-in, version 0.5.0	15 years ago