portable_get_random
go-cli
| portable_get_random | go-cli | |
|---|---|---|
| 1 | 1 | |
| 0 | 0 | |
| - | - | |
| 10.0 | 10.0 | |
| over 2 years ago | about 1 year ago | |
| C | Go | |
| MIT License | MIT License |
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portable_get_random
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Go 1.20 Released
To get cryptographically grade randomness you can use one of these C functions:
BSD, newer macOS, and GNU libc: int getentropy(void buffer, size_t length);
Linux 3.19+: ssize_t getrandom(void buf, size_t buflen, unsigned int flags);
iOS and macOS 10.7+: int SecRandomCopyBytes(SecRandomRef, size_t, uint8_t );
Fuchsia: void zx_cprng_draw(void* buffer, size_t buffer_size);
Any *nix: Read from "/dev/random" (or "/dev/urandom" under the assumption that your system has already enough entropy).
Windows: There are different functions/libraries depending on the Windows version and some of them are a complicated multi-step mess.
Some time ago I wrote a C library that abstracts that away just for fun: https://github.com/panzi/portable_get_random
go-cli
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Go 1.20 Released
Tacking on generics on a working code base is difficult.
I effectively used it in this little experimental CLI library: https://github.com/cpuguy83/go-cli/blob/main/command.go
It's pretty simple, but the nice thing is it can use any flag library you want (stdlib flag package, pflag, whatever).
What are some alternatives?
prometheus - The Prometheus monitoring system and time series database.
VictoriaMetrics - VictoriaMetrics: fast, cost-effective monitoring solution and time series database
go - The Go programming language