Rich Felker
5a6e8d098a
when a write error occurred while flushing output due to a newline, fwrite falsely reported all bytes up to and including the newline as successfully written. in general, due to buffering such "spurious success" returns are acceptable for stdio; however for line-buffered mode it was subtly wrong. errors were still visible via ferror() or as a short-write return if there was more data past the newline that should have been written, but since the contract for line-buffered mode is that everything up through the newline be written out immediately, a discrepency was observable in the actual file contents.
musl libc
musl, pronounced like the word "mussel", is an MIT-licensed
implementation of the standard C library targetting the Linux syscall
API, suitable for use in a wide range of deployment environments. musl
offers efficient static and dynamic linking support, lightweight code
and low runtime overhead, strong fail-safe guarantees under correct
usage, and correctness in the sense of standards conformance and
safety. musl is built on the principle that these goals are best
achieved through simple code that is easy to understand and maintain.
The 1.1 release series for musl features coverage for all interfaces
defined in ISO C99 and POSIX 2008 base, along with a number of
non-standardized interfaces for compatibility with Linux, BSD, and
glibc functionality.
For basic installation instructions, see the included INSTALL file.
Information on full musl-targeted compiler toolchains, system
bootstrapping, and Linux distributions built on musl can be found on
the project website:
http://www.musl-libc.org/