From e6477781302bd147c997e2f61166737f54aadd7d Mon Sep 17 00:00:00 2001 From: Curtis McEnroe Date: Fri, 9 Nov 2018 00:24:00 -0500 Subject: Add adler32.3 --- adler32.3 | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 adler32.3 (limited to 'adler32.3') diff --git a/adler32.3 b/adler32.3 new file mode 100644 index 0000000..18371a3 --- /dev/null +++ b/adler32.3 @@ -0,0 +1,51 @@ +.Dd November 9, 2018 +.Dt ADLER32 3 +.Os +. +.Sh NAME +.Nm adler32 , +.Nm adler32_z +.Nd update Adler-32 checksum +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft uLong +.Fn adler32 "uLong adler" "const Bytef *buf" "uInt len" +.Ft uLong +.Fn adler32_z "uLong adler" "const Bytef *buf" "z_size_t len" +. +.Sh DESCRIPTION +Update a running Adler-32 checksum with the bytes +.Fa "buf[0..len-1]" +and return the updated checksum. +If +.Fa buf +is +.Dv Z_NULL , +this function returns +the required initial value for the checksum. +. +.Pp +An Adler-32 checksum is almost as reliable as a CRC-32 +but can be computed much faster. +. +.Pp +.Fn adler32_z +is the same as +.Fn adler32 , +but with a +.Vt size_t +length. +. +.Sh EXAMPLES +.Bd -literal -offset indent +uLong adler = adler32(0L, Z_NULL, 0); + +while (read_buffer(buffer, length) != EOF) { + adler = adler32(adler, buffer, length); +} +if (adler != original_adler) error(); +.Ed -- cgit 1.4.1 t/favicon.ico?h=1.4.1&id=a52aaa90dab1d95f9df383d2cb3f7c428ab849fe&follow=1'>commit diff
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2014-01-12ui-repolist: HTML-escape cgit_rooturl() responseJohn Keeping
2014-01-12ui-shared: URL-escape script_nameJohn Keeping
2014-01-12ui-refs: escape HTML chars in author and tagger namesJohn Keeping
2014-01-12filter: pass extra arguments via cgit_open_filterJohn Keeping
2014-01-12ui-snapshot: set unused cgit_filter fields to zeroJohn Keeping
2014-01-12html: remove redundant htmlfd variableJohn Keeping
2014-01-12tests: add Valgrind supportJohn Keeping
2014-01-12cache: don't leave cache_slot fields uninitializedJohn Keeping
2014-01-10filter: split filter functions into their own fileJason A. Donenfeld
2014-01-10filter: make exit status localJason A. Donenfeld
2014-01-10parsing: fix header typoJason A. Donenfeld
2014-01-10cgit.c: Fix comment on bit mask hackLukas Fleischer
2014-01-10cgit.c: Use "else" for mutually exclusive branchesLukas Fleischer
2014-01-10ui-snapshot.c: Do not reinvent suffixcmp()Lukas Fleischer
2014-01-10Refactor cgit_parse_snapshots_mask()Lukas Fleischer
2014-01-10Disallow use of undocumented snapshot delimitersLukas Fleischer
2014-01-10Replace most uses of strncmp() with prefixcmp()Lukas Fleischer
2014-01-09README: Fix dependenciesLukas Fleischer
2014-01-08README: Spelling and formatting fixesLukas Fleischer
2014-01-08Fix UTF-8 with syntax-highlighting.pyPřemysl Janouch
2014-01-08Add a suggestion to the manpagePřemysl Janouch
2014-01-08Fix the example configurationPřemysl Janouch
2014-01-08Fix about-formatting.shPřemysl Janouch
2014-01-08Fix some spelling errorsPřemysl Janouch
2014-01-08filters: highlight.sh: add css comments for highlight 2.6 and 3.8Ferry Huberts