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path: root/src/network/getservbyname_r.c
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2017-09-06don't treat numeric port strings as servent records in getservby*()Rich Felker1-0/+6
some applications use getservbyport to find port numbers that are not assigned to a service; if getservbyport always succeeds with a numeric string as the result, they fail to find any available ports. POSIX doesn't seem to mandate the behavior one way or another. it specifies an abstract service database, which an implementation could define to include numeric port strings, but it makes more sense to align behavior with traditional implementations. based on patch by A. Wilcox. the original patch only changed getservbyport[_r]. to maintain a consistent view of the "service database", I have also modified getservbyname[_r] to exclude numeric port strings.
2016-09-24fix getservby*_r result pointer value on errorDaniel Sabogal1-0/+2
this is a clone of the fix to the gethostby*_r functions in commit fe82bb9b921be34370e6b71a1c6f062c20999ae0. the man pages document that the getservby*_r functions set this pointer to NULL if there was an error or if no record was found.
2015-02-07make getaddrinfo support SOCK_RAW and other socket typesRich Felker1-1/+1
all socket types are accepted at this point, but that may be changed at a later time if the behavior is not meaningful for other types. as before, omitting type (a value of 0) gives both UDP and TCP results, and SOCK_DGRAM or SOCK_STREAM restricts to UDP or TCP, respectively. for other socket types, the service name argument is required to be a null pointer, and the protocol number provided by the caller is used.
2014-06-01improve getservbyname_r using new resolver backendRich Felker1-21/+15
now that host and service lookup have been separated in the backend, there's no need for service lookup functions to pull in the host lookup code. moreover, dynamic allocation is no longer needed, so this function should now be async-signal-safe. it's also significantly smaller. one change in getservbyname is also made: knowing that getservbyname_r needs only two character pointers in the caller-provided buffer, some wasted bss can be avoided.
2012-07-22make getservby*_r return error code rather than -1 (and using errno)Rich Felker1-9/+17
untested but should be correct..
2012-07-14fix getservby*() with null pointer for protocol argumentRich Felker1-0/+4
not sure this is the best fix but it should work
2011-02-12initial check-in, version 0.5.0v0.5.0Rich Felker1-0/+41