musl - musl - an implementation of the standard library for Linux-based systems

Age	Commit message (Collapse)	Author	Lines
2018-09-12	declare __getopt_msg in stdio_impl.h	Rich Felker	-2/+1
	it's not ideal, but the function is essentially an extended stdio function specialized to getopt's needs. the only reason it exists is avoiding pulling printf code into every program using getopt.
2018-04-27	getopt_long_only: don't prefix-match long-options that match short ones	Rich Felker	-2/+15
	for getopt_long, partial (prefix) matches of long options always begin with "--" and thus can never be ambiguous with a short option. for getopt_long_only, though, a single-character option can match both a short option and as a prefix for a long option. in this case, we wrongly interpreted it as a prefix for the long option. introduce a new pass, only in long-only mode, to check the prefix match against short options before accepting it. the only reason there's a slightly nontrivial loop being introduced rather than strchr is that our getopt already supports multibyte short options, and getopt_long_long should handle them consistently. a temp buffer and strstr could have been used, but the code to set it up would be just as large as what's introduced here and it would unnecessarily pull in relatively large code for strstr.
2018-01-31	getopt_long: accept prefix match of long options containing equals signs	Samuel Holland	-1/+2
	Consider the first equals sign found in the option to be the delimiter between it and its argument, even if it matches an equals sign in the option name. This avoids consuming the equals sign, which would prevent finding the argument. Instead, it forces a partial match of the part of the option name before the equals sign. Maintainer's note: GNU getopt_long does not explicitly document this behavior, but it can be seen as a consequence of how partial matches are specified, and at least GNU (bfd) ld is known to make use of it.
2018-01-31	fix getopt_long arguments to partial matches	Samuel Holland	-1/+3
	If we find a partial option name match, we need to keep looking for ambiguous/conflicting options. However, we need to remember the position in the candidate argument to find its option-argument later, if there is one. This fixes e.g. option "foobar" being given as "--fooba=baz".
2017-01-04	fix getopt[_long] clobbering of optopt on success	Rich Felker	-1/+3
	getopt is only specified to modify optopt on error, and some software apparently infers an error from optopt!=0. getopt_long is changed analogously. the resulting behavior differs slightly from the behavior of the GNU implementation of getopt_long, which keeps an internal shadow copy of optopt and copies it to the public one on return, but since the GNU implementation also exhibits this shadow-copy behavior for plain getopt where is is non-conforming, I think this can reasonably be considered a bug rather than an intentional behavior that merits mimicing.
2016-10-20	fix getopt_long_only misinterpreting "--" as an option	Rich Felker	-1/+1

2015-01-21	simplify part of getopt_long	Rich Felker	-13/+11
	as a result of commit e8e4e56a8ce1f3d7e4a027ff5478f2f8ea70c46b, the later code path for setting optarg to a null pointer is no longer necessary, and removing it eliminates an indention level and arguably makes the code more readable.
2015-01-21	always set optarg in getopt_long	Rich Felker	-1/+1
	the standard getopt does not touch optarg unless processing an option with an argument. however, programs using the GNU getopt API, which we attempt to provide in getopt_long, expect optarg to be a null pointer after processing an option without an argument. before argument permutation support was added, such programs typically detected its absence and used their own replacement getopt_long, masking the discrepency in behavior.
2015-01-11	fix regression in getopt_long support for non-option arguments	Rich Felker	-7/+6
	commit b72cd07f176b876aa51864d93aa8101477b1d732 added support for a this feature in getopt, but it was later broken in the case where getopt_long is used as a side effect of the changes made in commit 91184c4f16b143107fa9935edebe5d2b20bd70d8, which prevented the underlying getopt call from seeing the leading '-' or '+' character in optstring. this commit changes the logic in the getopt_long core to check for a leading colon, possibly after the leading '-' or '+', without depending on the latter having been skipped by the caller. a minor incorrectness in the return value for one error condition in getopt_long is also fixed when opterr has been set to zero but optstring has no leading ':'.
2014-12-20	set optopt in getopt_long	Rich Felker	-0/+1
	this is undocumented but possibly expected behavior of GNU getopt_long, and useful when error message printing has been suppressed.
2014-12-20	add error message printing to getopt_long and make related improvements	Rich Felker	-4/+30
	some related changes are also made to getopt, and the return value of getopt_long in the case of missing arguments is fixed.
2014-12-13	simplify getopt_long argv permutation loop logic	Rich Felker	-3/+1

2014-12-13	fix handling of "--" with getopt_long argv permutation	Rich Felker	-1/+0
	if argv permutation is used, the option terminator "--" should be moved before any skipped non-option arguments rather than being left in the argv tail where the caller will see and interpret it.
2014-12-11	accept null longopts pointer in getopt_long	Rich Felker	-1/+1
	this is an undocumented feature of GNU getopt_long that the BSD version also mimics, and is reportedly needed by some programs.
2014-12-10	support abbreviated options in getopt_long	Rich Felker	-7/+18

2014-12-10	support options after non-option arguments in getopt_long (argv permutation)	Rich Felker	-0/+39

2014-12-02	add support for non-option arguments extension to getopt	Gianluca Anzolin	-3/+4
	this is a GNU extension, activated by including '-' as the first character of the options string, whereby non-option arguments are processed as if they were arguments to an option character '\1' rather than ending option processing.
2012-09-30	add getopt reset support	Rich Felker	-0/+7
	based on proposed patches by Daniel Cegiełka, with minor changes: - use a weak symbol for optreset so it doesn't clash with namespace - also reset optpos (position in multi-option arg like -lR) - also make getopt_long support reset
2012-09-07	cleanup src/linux and src/misc trees, etc.	Rich Felker	-0/+52
	previously, it was pretty much random which one of these trees a given function appeared in. they have now been organized into: src/linux: non-POSIX linux syscalls (possibly shard with other nixen) src/legacy: various obsolete/legacy functions, mostly wrappers src/misc: still mostly uncategorized; some misc POSIX, some nonstd src/crypt: crypt hash functions further cleanup will be done later.