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2eb45444 | 1 | GNU C Library NEWS -- history of user-visible changes. 1998-03-04 |
28f540f4 | 2 | |
da2d1bc5 | 3 | Copyright (C) 1992, 93, 94, 95, 96, 97, 98 Free Software Foundation, Inc. |
28f540f4 RM |
4 | See the end for copying conditions. |
5 | ||
33a934a3 | 6 | Please send GNU C library bug reports using the `glibcbug' script to |
af6f3906 | 7 | <bugs@gnu.org>. Questions and suggestions should be send to |
2eb45444 | 8 | <bug-glibc@gnu.org>. |
28f540f4 | 9 | \f |
c84142e8 UD |
10 | Version 2.1 |
11 | ||
da2d1bc5 UD |
12 | * Richard Henderson corrected size of struct timeval on Linux/Alpha to |
13 | conform to POSIX member type requirements. Symbol versions have been | |
14 | adjusted as needed within the library, and for direct use by applications, | |
15 | but there is potential for problems if third-party libraries use | |
16 | struct timeval as part of their interface. This does not present | |
17 | a problem for X and other "essential" system libraries. | |
18 | ||
c84142e8 | 19 | * An additional locale model to support C++ Standard Library locale |
1fb05e3d | 20 | model and probably more was implemented by Ulrich Drepper. |
c84142e8 | 21 | |
1fb05e3d | 22 | * Eric Youngdale and Ulrich Drepper implemented versioning of objects on |
c84142e8 UD |
23 | symbol level. |
24 | ||
25 | * Miles Bader provided the `argp' function family to support hierachical | |
26 | command line argument parsing, layered on top of getopt. | |
377a515b | 27 | |
cbdee279 | 28 | * strtod accepts new hexadecimal floating-point format from ISO C 9X. |
377a515b UD |
29 | |
30 | * printf has two new specifiers %a and %A to print hexadecimal flaoting-point | |
cbdee279 | 31 | numbers. |
377a515b | 32 | |
cbdee279 | 33 | * scanf recognizes the %a and %A format for scanning floating point numbers. |
e61abf83 | 34 | |
48869012 UD |
35 | * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides |
36 | information and interfaces for the available integer types. | |
e61abf83 UD |
37 | |
38 | * the new header <complex.h> contains definitions of the complex math | |
cbdee279 UD |
39 | functions from ISO C 9X. |
40 | ||
41 | * the new header <tgmath.h> defines generic macros to use complex or | |
42 | real valued functions. | |
e61abf83 | 43 | |
a5a0310d | 44 | * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2. |
e61abf83 | 45 | |
a5a0310d UD |
46 | * Andreas Jaeger provided a test suite for the math library. |
47 | ||
48 | * Mark Kettenis implemented the utmpx interface and an utmp daemon. | |
cbdee279 UD |
49 | |
50 | * Ulrich Drepper added character conversion functions. | |
51 | ||
52 | * Optimized string functions have been added. | |
53 | ||
54 | * The localedata addon is now part of glibc. | |
2eb45444 UD |
55 | |
56 | * An implementation of profiling shared libraries was added by Ulrich Drepper. | |
ea278354 | 57 | |
48244d09 UD |
58 | * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching |
59 | daemon for NSS (nscd). | |
60 | ||
61 | Missing a better place here are some numbers on improvements. Under | |
62 | Linux 2.1.125 un-tar-ing the kernel sources takes | |
63 | ||
64 | user system wall | |
65 | ||
66 | using local files 12.19s 6.88s 22.91s | |
67 | ||
68 | using NIS 13.92s 8.91s 26.34s | |
69 | ||
70 | using NIS & nscd 10.37s 7.34s 25.30s | |
71 | ||
72 | using NIS & old nscd [1] 13.83s 8.32s 29.60s | |
73 | ||
74 | When NIS+ is used instead of NIS the benefit from using nscd is much bigger. | |
75 | Keep in mind that non-namelookup related operations dominate above times. | |
76 | It was just a common complain that using NIS+ unpacking the kernel is | |
77 | horribly slow. When using nscd unpacking is now even faster than using | |
78 | NIS. | |
79 | ||
80 | [1] The old nscd implementation is not anymore available since it was | |
81 | distributed with glibc up to version 2.0.98. | |
ea278354 UD |
82 | |
83 | * Tim Waugh provided an implementation of the POSIX.2 wordexp function family. | |
48869012 UD |
84 | |
85 | * Mark Kettenis provided a Hesiod NSS module. | |
20833331 UD |
86 | |
87 | * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN | |
88 | and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper). | |
89 | ||
90 | * rcmd can now handle netgroups (Dick Streefland). | |
48244d09 UD |
91 | |
92 | * Interface changes relative to the latest 2.0.x release: | |
93 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
94 | addseverity NEW: fmtmsg | |
95 | alphasort64 NEW: LFS | |
96 | argp_err_exit_status NEW: argp | |
97 | argp_error NEW: argp | |
98 | argp_failure NEW: argp | |
99 | argp_help NEW: argp | |
100 | argp_parse NEW: argp | |
101 | argp_program_bug_address NEW: argp | |
102 | argp_program_version NEW: argp | |
103 | argp_program_version_hook NEW: argp | |
104 | argp_state_help NEW: argp | |
105 | argp_usage NEW: argp | |
106 | authdes_create NEW: NIS+ | |
107 | authdes_getucred NEW: NIS+ | |
108 | authdes_pk_create NEW: NIS+ | |
109 | backtrace NEW: GNU ext. | |
110 | backtrace_symbols NEW: GNU ext. | |
111 | backtrace_symbols_fd NEW: GNU ext. | |
112 | cacos NEW: ISO C 9x | |
113 | cacosf NEW: ISO C 9x | |
114 | cacosh NEW: ISO C 9x | |
115 | cacoshf NEW: ISO C 9x | |
116 | cacoshl NEW: ISO C 9x | |
117 | cacosl NEW: ISO C 9x | |
118 | capget NEW: kernel | |
119 | capset NEW: kernel | |
120 | carg NEW: ISO C 9x | |
121 | cargf NEW: ISO C 9x | |
122 | cargl NEW: ISO C 9x | |
123 | casin NEW: ISO C 9x | |
124 | casinf NEW: ISO C 9x | |
125 | casinh NEW: ISO C 9x | |
126 | casinhf NEW: ISO C 9x | |
127 | casinhl NEW: ISO C 9x | |
128 | casinl NEW: ISO C 9x | |
129 | catan NEW: ISO C 9x | |
130 | catanf NEW: ISO C 9x | |
131 | catanh NEW: ISO C 9x | |
132 | catanhf NEW: ISO C 9x | |
133 | catanhl NEW: ISO C 9x | |
134 | catanl NEW: ISO C 9x | |
135 | cbc_crypt NEW: NIS+ | |
136 | ccos NEW: ISO C 9x | |
137 | ccosf NEW: ISO C 9x | |
138 | ccosh NEW: ISO C 9x | |
139 | ccoshf NEW: ISO C 9x | |
140 | ccoshl NEW: ISO C 9x | |
141 | ccosl NEW: ISO C 9x | |
142 | cexp NEW: ISO C 9x | |
143 | cexpf NEW: ISO C 9x | |
144 | cexpl NEW: ISO C 9x | |
145 | cimag NEW: ISO C 9x | |
146 | cimagf NEW: ISO C 9x | |
147 | cimagl NEW: ISO C 9x | |
148 | clearerr_locked REMOVED | |
149 | clntunix_create NEW: sunrpc ext | |
150 | clog NEW: ISO C 9x | |
151 | clog10 NEW: ISO C 9x | |
152 | clog10f NEW: ISO C 9x | |
153 | clog10l NEW: ISO C 9x | |
154 | clogf NEW: ISO C 9x | |
155 | clogl NEW: ISO C 9x | |
156 | conj NEW: ISO C 9x | |
157 | conjf NEW: ISO C 9x | |
158 | conjl NEW: ISO C 9x | |
159 | cpow NEW: ISO C 9x | |
160 | cpowf NEW: ISO C 9x | |
161 | cpowl NEW: ISO C 9x | |
162 | cproj NEW: ISO C 9x | |
163 | cprojf NEW: ISO C 9x | |
164 | cprojl NEW: ISO C 9x | |
165 | creal NEW: ISO C 9x | |
166 | crealf NEW: ISO C 9x | |
167 | creall NEW: ISO C 9x | |
168 | creat64 NEW: LFS | |
169 | csin NEW: ISO C 9x | |
170 | csinf NEW: ISO C 9x | |
171 | csinh NEW: ISO C 9x | |
172 | csinhf NEW: ISO C 9x | |
173 | csinhl NEW: ISO C 9x | |
174 | csinl NEW: ISO C 9x | |
175 | csqrt NEW: ISO C 9x | |
176 | csqrtf NEW: ISO C 9x | |
177 | csqrtl NEW: ISO C 9x | |
178 | ctan NEW: ISO C 9x | |
179 | ctanf NEW: ISO C 9x | |
180 | ctanh NEW: ISO C 9x | |
181 | ctanhf NEW: ISO C 9x | |
182 | ctanhl NEW: ISO C 9x | |
183 | ctanl NEW: ISO C 9x | |
184 | des_setparity NEW: NIS+ | |
185 | ecb_crypt NEW: NIS+ | |
186 | endutxent NEW: utmpx | |
187 | exp10 NEW: ISO C 9x | |
188 | exp10f NEW: ISO C 9x | |
189 | exp10l NEW: ISO C 9x | |
190 | exp2 NEW: ISO C 9x | |
191 | exp2f NEW: ISO C 9x | |
192 | exp2l NEW: ISO C 9x | |
193 | fattach NEW: STREAMS | |
194 | fdetach NEW: STREAMS | |
195 | fdim NEW: ISO C 9x | |
196 | fdimf NEW: ISO C 9x | |
197 | fdiml NEW: ISO C 9x | |
198 | feclearexcept NEW: ISO C 9x | |
199 | fegetenv NEW: ISO C 9x | |
200 | fegetexceptflag NEW: ISO C 9x | |
201 | fegetround NEW: ISO C 9x | |
202 | feholdexcept NEW: ISO C 9x | |
203 | feof_locked REMOVED | |
204 | feraiseexcept NEW: ISO C 9x | |
205 | ferror_locked REMOVED | |
206 | fesetenv NEW: ISO C 9x | |
207 | fesetexceptflag NEW: ISO C 9x | |
208 | fesetround NEW: ISO C 9x | |
209 | fetestexcept NEW: ISO C 9x | |
210 | feupdateenv NEW: ISO C 9x | |
211 | fflush_locked REMOVED | |
212 | ffsl NEW: GNU ext. | |
213 | ffsll NEW: GNU ext. | |
214 | fgetpos64 NEW: LFS | |
215 | fgets_unlocked NEW: GNU ext. | |
216 | fileno_locked REMOVED | |
217 | fma NEW: ISO C 9x | |
218 | fmaf NEW: ISO C 9x | |
219 | fmal NEW: ISO C 9x | |
220 | fmax NEW: ISO C 9x | |
221 | fmaxf NEW: ISO C 9x | |
222 | fmaxl NEW: ISO C 9x | |
223 | fmin NEW: ISO C 9x | |
224 | fminf NEW: ISO C 9x | |
225 | fminl NEW: ISO C 9x | |
226 | fmtmsg NEW: fmtmsg | |
227 | fopen64 NEW: LFS | |
228 | fputc_locked REMOVED | |
229 | fputs_unlocked NEW: GNU ext. | |
230 | fread_unlocked NEW: GNU ext. | |
231 | freopen64 NEW: LFS | |
232 | fseeko NEW: Unix98 | |
233 | fsetpos64 NEW: LFS | |
234 | fstatfs64 NEW: LFS | |
235 | fstatvfs NEW: Unix98 | |
236 | fstatvfs64 NEW: LFS | |
237 | ftello NEW: Unix98 | |
238 | ftello64 NEW: LFS | |
239 | ftruncate64 NEW: LFS | |
240 | ftw64 NEW: LFS | |
241 | fwrite_unlocked NEW: GNU ext. | |
242 | gai_strerror NEW: IPv6 | |
243 | gamma_r REMOVED | |
244 | gammaf_r REMOVED | |
245 | gammal_r REMOVED | |
246 | getchar_locked REMOVED | |
247 | getdate NEW: Unix98 | |
248 | getdate_err NEW: Unix98 | |
249 | getdate_r NEW: GNU ext. | |
250 | getmsg NEW: STREAMS | |
251 | getnameinfo NEW: IPv6 | |
252 | getnetname NEW: IPv6 | |
253 | getpmsg NEW: STREAMS | |
254 | getpt NEW: Unix98 PTY | |
255 | getrlimit64 NEW: LFS | |
256 | getutxent NEW: utmpx | |
257 | getutxid NEW: utmpx | |
258 | getutxline NEW: utmpx | |
259 | glob64 NEW: GNU ext. | |
260 | globfree64 NEW: GNU ext. | |
261 | gnu_get_libc_release NEW: GNU ext. | |
262 | gnu_get_libc_version NEW: GNU ext. | |
263 | grantpt NEW: Unix98 PTY | |
264 | host2netname NEW: IPv6 | |
265 | iconv NEW: iconv | |
266 | iconv_close NEW: iconv | |
267 | iconv_open NEW: iconv | |
268 | if_freenameindex NEW: IPv6 | |
269 | if_indextoname NEW: IPv6 | |
270 | if_nameindex NEW: IPv6 | |
271 | if_nametoindex NEW: IPv6 | |
272 | in6addr_any NEW: IPv6 | |
273 | in6addr_loopback NEW: IPv6 | |
274 | inet6_isipv4mapped NEW: IPv6 | |
275 | isastream NEW: STREAMS | |
276 | iswblank NEW: GNU ext. | |
277 | key_decryptsession NEW: NIS+ | |
278 | key_decryptsession_pk NEW: NIS+ | |
279 | key_encryptsession NEW: NIS+ | |
280 | key_encryptsession_pk NEW: NIS+ | |
281 | key_gendes NEW: NIS+ | |
282 | key_get_conv NEW: NIS+ | |
283 | key_secretkey_is_set NEW: NIS+ | |
284 | key_setnet NEW: NIS+ | |
285 | key_setsecret NEW: NIS+ | |
286 | llrint NEW: ISO C 9x | |
287 | llrintf NEW: ISO C 9x | |
288 | llrintl NEW: ISO C 9x | |
289 | llround NEW: ISO C 9x | |
290 | llroundf NEW: ISO C 9x | |
291 | llroundl NEW: ISO C 9x | |
292 | log2 NEW: ISO C 9x | |
293 | log2f NEW: ISO C 9x | |
294 | log2l NEW: ISO C 9x | |
295 | lrint NEW: ISO C 9x | |
296 | lrintf NEW: ISO C 9x | |
297 | lrintl NEW: ISO C 9x | |
298 | lround NEW: ISO C 9x | |
299 | lroundf NEW: ISO C 9x | |
300 | lroundl NEW: ISO C 9x | |
301 | lseek64 NEW: LFS | |
302 | makecontext NEW: Unix98 | |
303 | mempcpy NEW: GNU ext. | |
304 | mmap64 NEW: LFS | |
305 | moncontrol REMOVED | |
306 | modify_ldt NEW: kernel | |
307 | nan NEW: ISO C 9x | |
308 | nanf NEW: ISO C 9x | |
309 | nanl NEW: ISO C 9x | |
310 | nearbyint NEW: ISO C 9x | |
311 | nearbyintf NEW: ISO C 9x | |
312 | nearbyintl NEW: ISO C 9x | |
313 | netname2host NEW: IPv6 | |
314 | netname2user NEW: IPv6 | |
315 | nextafterx NEW: ISO C 9x | |
316 | nextafterxf NEW: ISO C 9x | |
317 | nftw NEW: Unix98 | |
318 | nftw64 NEW: LFS | |
319 | open64 NEW: LFS | |
320 | passwd2des NEW: NIS+ | |
321 | pow10 NEW: GNU ext. | |
322 | pow10f NEW: GNU ext. | |
323 | pow10l NEW: GNU ext. | |
324 | pread NEW: Unix98 | |
325 | pread64 NEW: LFS | |
326 | printf_size NEW: GNU ext. | |
327 | printf_size_info NEW: GNU ext. | |
328 | profil_counter REMOVED | |
329 | pthread_mutexattr_getkind_np REPLACED | |
330 | pthread_mutexattr_setkind_np REPLACED | |
331 | ptsname NEW: Unix98 PTY | |
332 | ptsname_r NEW: Unix98 PTY | |
333 | putc_locked REMOVED | |
334 | putchar_locked REMOVED | |
335 | putgrent NEW: GNU ext. | |
336 | putmsg NEW: STREAMS | |
337 | putpmsg NEW: STREAMS | |
338 | pututxline NEW: utmpx | |
339 | pwrite NEW: Unix98 | |
340 | pwrite64 NEW: LFS | |
341 | readdir64 NEW: LFS | |
342 | readdir64_r NEW: LFS | |
343 | remquo NEW: ISO C 9x | |
344 | remquof NEW: ISO C 9x | |
345 | remquol NEW: ISO C 9x | |
346 | round NEW: ISO C 9x | |
347 | roundf NEW: ISO C 9x | |
348 | roundl NEW: ISO C 9x | |
349 | rtime NEW: GNU ext. | |
350 | scalbln NEW: ISO C 9x | |
351 | scalblnf NEW: ISO C 9x | |
352 | scalblnl NEW: ISO C 9x | |
353 | scandir64 NEW: LFS | |
354 | sendfile NEW: kernel | |
355 | setcontext NEW: Unix98 | |
356 | setrlimit64 NEW: LFS | |
357 | setutxent NEW: utmpx | |
358 | sighold NEW: Unix98 | |
359 | sigignore NEW: Unix98 | |
360 | sigqueue NEW: POSIX.1b | |
361 | sigrelse NEW: Unix98 | |
362 | sigset NEW: POSIX.1b | |
363 | sigtimedwait NEW: POSIX.1b | |
364 | sigwaitinfo NEW: POSIX.1b | |
365 | sincos NEW: GNU ext. | |
366 | sincosf NEW: GNU ext. | |
367 | sincosl NEW: GNU ext. | |
368 | statfs64 NEW: LFS | |
369 | statvfs NEW: Unix98 | |
370 | statvfs64 NEW: LFS | |
371 | strcasestr NEW: GNU ext. | |
372 | strfxtime NEW: ISO C 9x | |
373 | strtoimax NEW: ISO C 9x | |
374 | strtoumax NEW: ISO C 9x | |
375 | strverscmp NEW: GNU ext. | |
376 | svcauthdes_stats NEW: NIS+ | |
377 | svcunix_create NEW: sunrpc etx | |
378 | svcunixfd_create NEW: sunrpc ext | |
379 | swapcontext NEW: Unix98 | |
380 | tcgetsid NEW: Unix98 PTY | |
381 | tdestroy NEW: GNU ext. | |
382 | tgamma NEW: ISO C 9x | |
383 | tgammaf NEW: ISO C 9x | |
384 | tgammal NEW: ISO C 9x | |
385 | tmpfile64 NEW: LFS | |
386 | trunc NEW: ISO C 9x | |
387 | truncate64 NEW: LFS | |
388 | truncf NEW: ISO C 9x | |
389 | truncl NEW: ISO C 9x | |
390 | umount2 NEW: kernel | |
391 | unlockpt NEW: Unix98 PTY | |
392 | updwtmpx NEW: utmpx | |
393 | user2netname NEW: IPv6 | |
394 | utmpxname NEW: utmpx | |
395 | versionsort NEW: GNU ext. | |
396 | versionsort64 NEW: LFS | |
397 | waitid NEW: Unix98 | |
398 | wcscasecmp NEW: GNU ext. | |
399 | wcsncasecmp NEW: GNU ext. | |
400 | wcsnlen NEW: GNU ext. | |
401 | wcstoimax NEW: ISO C 9x | |
402 | wcstoll NEW: ISO C 9x | |
403 | wcstoull NEW: ISO C 9x | |
404 | wcstoumax NEW: ISO C 9x | |
405 | wcswcs NEW: Unix98 | |
406 | wordexp NEW: POSIX.2 | |
407 | wordfree NEW: POSIX.2 | |
408 | write_profiling REMOVED | |
409 | xdecrypt NEW: NIS+ | |
410 | xdr_authdes_cred NEW: NIS+ | |
411 | xdr_authdes_verf NEW: NIS+ | |
412 | xdr_cryptkeyarg NEW: NIS+ | |
413 | xdr_cryptkeyarg2 NEW: NIS+ | |
414 | xdr_cryptkeyres NEW: NIS+ | |
415 | xdr_getcredres NEW: NIS+ | |
416 | xdr_key_netstarg NEW: NIS+ | |
417 | xdr_key_netstres NEW: NIS+ | |
418 | xdr_keybuf NEW: NIS+ | |
419 | xdr_keystatus NEW: NIS+ | |
420 | xdr_netnamestr NEW: NIS+ | |
421 | xdr_sizeof NEW: NIS+ | |
422 | xdr_unixcred NEW: sunrpc ext | |
423 | xencrypt NEW: NIS+ | |
424 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
a5a0310d UD |
425 | \f |
426 | Version 2.0.5 | |
427 | ||
428 | * more bug fixes | |
429 | ||
430 | * inet_ntoa is thread-safe | |
431 | ||
432 | * updwtmp is moved from libutil to libc | |
433 | ||
434 | * rewrite of cbrt function | |
435 | ||
436 | * update of timezone data | |
437 | \f | |
438 | Version 2.0.4 | |
439 | ||
440 | * more bug fixes | |
441 | \f | |
442 | Version 2.0.3 | |
443 | ||
444 | * more bug fixes | |
c84142e8 | 445 | \f |
795fbc9a UD |
446 | Version 2.0.2 |
447 | ||
448 | * more bug fixes | |
449 | ||
450 | * add atoll function | |
451 | ||
452 | * fix complex problems in Berkeley DB code | |
e61abf83 UD |
453 | |
454 | * fix math functions | |
795fbc9a UD |
455 | \f |
456 | Version 2.0.1 | |
457 | ||
458 | * fixed lots of header problems (especially Linux/GNU specific) | |
459 | ||
460 | * dynamic loader preserves all registers | |
461 | ||
462 | * Roland McGrath provided support for handling of auxiliary objects in | |
463 | the ELF dynamic loader. | |
464 | ||
465 | * support for parallel builds is improved | |
466 | \f | |
40a4b79f | 467 | Version 2.0 |
28f540f4 | 468 | |
d3669add RM |
469 | * GNU extensions are no longer declared by default. To enable them you |
470 | must define the macro `_GNU_SOURCE' in your program or compile with | |
471 | `-D_GNU_SOURCE'. | |
472 | ||
28f540f4 RM |
473 | * The library has changed from using GNU ld symbol aliases to using weak |
474 | symbols where available. The ELF object file format supports weak | |
475 | symbols; GNU ld also supports weak symbols in the a.out format. (There | |
476 | is also now support for other GNU ld extensions in ELF. Use the | |
787126fe RM |
477 | `--with-elf' option to configure to indicate you have ELF, and |
478 | `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion | |
28f540f4 RM |
479 | of many files which contained only symbol aliases, reducing the size of |
480 | the source and the compiled library; many other files were renamed to | |
481 | less cryptic names previously occupied by the symbol alias files. | |
dcf0671d UD |
482 | There is a new header file <elf.h> for programs which operate on |
483 | files in the ELF format. | |
49e522bf RM |
484 | |
485 | * Converted to Autoconf version 2, so `configure' has more options. | |
486 | Run `configure --help' to see the details. | |
487 | ||
488 | * The library can now be configured to build profiling, highly-optimized | |
b25c5d66 RM |
489 | (but undebuggable), and/or shared libraries (ELF with GNU ld only). The |
490 | `--enable-profile', `--enable-omitfp', and `--enable-shared' options to | |
491 | `configure' enable building these extra libraries. The shared library is | |
492 | built by default when using both ELF and GNU ld. When shared libraries | |
493 | are enabled, the new library `-ldl' is available for arbitrary run-time | |
494 | loading of shared objects; its interface is defined in <dlfcn.h>. The | |
495 | new header file <link.h> gives access to the internals of the run-time | |
33a934a3 UD |
496 | dynamic linker, `ld.so'. The shell script `ldd' is similar to the |
497 | application of same name on other systems and it provides information | |
498 | about dynamically linked binaries. | |
49e522bf | 499 | |
71733723 RM |
500 | * The C library now provides the run-time support code for profiling |
501 | executables compiled with `-pg'. Programs can control the profiling code | |
d3669add RM |
502 | through the interface in <sys/gmon.h>. The `gmon.out' files written by |
503 | the GNU C library can be read only by GNU `gprof' (from GNU binutils); | |
504 | the support for this file format was contributed by David Mosberger-Tang. | |
71733723 | 505 | |
f7eac6eb | 506 | * The math code has been replaced with a math library based on fdlibm from |
33a934a3 UD |
507 | Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by |
508 | Ian Taylor with `float' functions and by Ulrich Drepper with `long double' | |
509 | functions. The math functions now reside in a separate library, so | |
510 | programs using them will need to use `-lm' their linking commands. | |
511 | ||
512 | * John C. Bowman contributed optimized ix87 assembler inline functions. | |
f7eac6eb | 513 | |
5f0e6fc7 RM |
514 | * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf' |
515 | mechanism similar to that found in Solaris 2. This is now used for the | |
33a934a3 UD |
516 | group, passwd, hosts, networks, services, protocols, rpc, ethers, |
517 | shadow, netgroup, publickey, and alias databases. The `nsswitch.conf' | |
518 | file controls what services are used for each individual database. This | |
519 | works by loading shared libraries with names specified in `nsswitch.conf', | |
520 | so service modules can be changed or added at any time without even | |
521 | relinking any program. Currently there are the file, db, and NIS based | |
522 | NSS services available. | |
5f0e6fc7 | 523 | |
49e522bf RM |
524 | * The new functions `strtoq' and `strtouq' parse integer values from |
525 | strings, like `strtol' and `strtoul', but they return `long long int' and | |
526 | `unsigned long long int' values, respectively (64-bit quantities). | |
527 | ||
528 | * The new functions `strtof' and `strtold' parse floating-point values from | |
529 | strings, like `strtod', but they return `float' and `long double' values, | |
530 | respectively (on some machines `double' and `long double' are the same). | |
531 | ||
532 | * Ulrich Drepper has contributed new implementations of the floating-point | |
533 | printing and reading code used in the `printf' family of functions and | |
534 | `strtod', `strtof', and `strtold'. These new functions are perfectly | |
535 | accurate, and much faster than the old ones. | |
536 | ||
33a934a3 UD |
537 | * The implementation of the POSIX locale model was completely rewritten by |
538 | Ulrich Drepper. This includes the new programs `localedef' and `locale' | |
539 | to compile the POSIX locale definition. | |
540 | ||
541 | * The former dummy implementations of the strcoll and strxfrm function are | |
542 | now replaced by fully functional code contributed by Ulrich Drepper. The | |
543 | collation information comes from the POSIX locale definitions. | |
544 | ||
49e522bf RM |
545 | * The new header <langinfo.h> defines an interface for accessing |
546 | various locale-dependent data (using the locale chosen with `setlocale'). | |
547 | ||
f7eac6eb | 548 | * Ulrich Drepper has contributed a new suite of functions for operation on |
33a934a3 | 549 | wide-character and multibyte-character strings, in <wchar.h>; |
b7407d63 | 550 | and classification and case conversion of wide characters, in <wctype.h>. |
33a934a3 UD |
551 | These new functions are conforming to the ISO C, Amendement 1 specification. |
552 | ||
553 | * There is now a second implementation of the standard I/O library available. | |
554 | It comes from GNU libg++ as was written by Per Bothner, heavily modified | |
555 | by Hongjiu Lu and made thread safe by Ulrich Drepper. | |
f7eac6eb | 556 | |
71733723 | 557 | * You can now use positional parameter specifications in format strings |
49e522bf RM |
558 | for the `printf' and `scanf' families of functions. For example, |
559 | `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints | |
560 | ``Number 6, Mr Jones''. This is mainly useful when providing different | |
d365fd2c RM |
561 | format strings for different languages, whose grammars may dictate |
562 | different orderings of the values being printed. To support this | |
49e522bf | 563 | feature, the interface for `register_printf_handler' has changed; see |
d365fd2c | 564 | the header file <printf.h> for details. |
49e522bf RM |
565 | |
566 | * The `printf' and `scanf' families of functions now understand a new | |
567 | formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says | |
568 | to group numbers as indicated by the locale; for `scanf' and friends, this | |
569 | says to accept as valid only a number with all the proper grouping | |
570 | separators in the right places. In the default "C" locale, numbers are | |
571 | not grouped; but locales for specific countries will define the usual | |
572 | conventions (i.e. separate thousands with `,' in the US locale). | |
28f540f4 RM |
573 | |
574 | * The pgrp functions have been regularized, slightly incompatibly but much | |
575 | less confusingly. The core functions are now `getpgid' and `setpgid', | |
576 | which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no | |
577 | argument) and BSD `setpgrp' (identical to `setpgid') functions are | |
578 | provided for compatibility. There is no longer an incompatible `getpgrp' | |
579 | with an argument declared under _BSD_SOURCE; no BSD code uses it. | |
580 | ||
581 | * The new header file <fts.h> and suite of functions simplify programs that | |
582 | operate on directory trees. This code comes from 4.4 BSD. | |
583 | ||
33a934a3 UD |
584 | * The resolver code has been updated from the BIND 4.9.5-P1 release. |
585 | Parts of the code were heavily modified by Ulrich Drepper to fit in the | |
586 | NSS scheme used in glibc. | |
28f540f4 | 587 | |
28f540f4 RM |
588 | * There is a new malloc debugging hook `__memalign_hook'. |
589 | ||
590 | * There are new typedefs `ushort' for `unsigned short int' and `uint' for | |
591 | `unsigned int' in <sys/types.h>. These are for compatibility only and | |
592 | their use is discouraged. | |
593 | ||
594 | * The `-lmcheck' library to enable standard malloc debugging hooks is now | |
595 | done differently, so that it works even without GNU ld. | |
787126fe | 596 | |
22a1292a RM |
597 | * New function `euidaccess' checks allowed access to a file like `access', |
598 | but using the effective IDs instead of the real IDs. | |
49e522bf RM |
599 | |
600 | * The time zone data files have been updated for the latest and greatest | |
601 | local time conventions of the countries of the world. | |
602 | ||
603 | * The new function `dirfd' extracts the file descriptor used by a DIR stream; | |
604 | see <dirent.h>. | |
605 | ||
606 | * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface | |
607 | for formatting floating-point numbers. They are provided only for | |
33a934a3 UD |
608 | compatibility; new programs should use `sprintf' instead. There are |
609 | also equivalent function for the `long double' floating-point type and | |
610 | all functions also exist in a reentrant form. | |
342414a6 RM |
611 | |
612 | * The new auxiliary library `-lutil' from 4.4 BSD contains various | |
613 | functions for maintaining the login-record files (primarily of use to | |
614 | system programs such as `login'), and convenient functions for | |
615 | allocating and initializing a pseudo-terminal (pty) device. | |
c709e372 RM |
616 | |
617 | * Ulrich Drepper has contributed new support for System V style | |
618 | shared memory and IPC on systems that support it. | |
619 | ||
620 | * Ulrich Drepper has contributed several miscellaneous new functions found | |
621 | in System V: The `hsearch' family of functions provide an effective | |
622 | implementation of hash tables; `a64l' and `l64a' provide a very simple | |
623 | binary to ASCII mapping; `drand48' and friends provide a 48-bit random | |
624 | number generator. | |
625 | ||
626 | * Ulrich Drepper has contributed new reentrant counterparts for the | |
627 | `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc. | |
628 | ||
629 | * Ulrich Drepper has contributed new, highly-optimized versions of several | |
630 | string functions for the i486/Pentium family of processors. | |
631 | ||
71733723 | 632 | * Ulrich Drepper has updated the Linux-specific code, based largely |
c709e372 | 633 | on work done in Hongjiu Lu's version of GNU libc for Linux. |
33a934a3 UD |
634 | The GNU library now supports Linux versions 2.0.10 and later, |
635 | using the ELF object file format (i[3456]86-*-linux). | |
c709e372 | 636 | |
d3669add RM |
637 | * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux). |
638 | ||
33a934a3 UD |
639 | * David Mosberger-Tang and Richard Henderson have ported the C library |
640 | to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the | |
641 | dynamic linking support for ELF/Alpha. | |
642 | ||
643 | * Richard Henderson contributed several Alpha optimized assembler function | |
644 | for arithmetic and string handling. | |
d3669add | 645 | |
c709e372 | 646 | * Ulrich Drepper has contributed a new set of message catalog functions to |
40a4b79f RM |
647 | support multiple languages using the <libintl.h> interface, for use with |
648 | his new package GNU gettext. Translation volunteers have contributed | |
649 | catalogs of the library's messages in Spanish, German, and Korean. | |
650 | ||
651 | * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat' | |
652 | program and the `catgets' function for reading the catalog files it | |
653 | creates. (The <libintl.h> interface is preferred; we include the | |
654 | <nl_types.h> interface using `catgets' only for source compatibility with | |
655 | programs already written to use it.) | |
71733723 RM |
656 | |
657 | * New header file <values.h> gives SVID-compatible names for <limits.h> | |
658 | constants. | |
659 | ||
660 | * Various new macros, declarations, and small header files for compatibility | |
661 | with 4.4 BSD. | |
662 | ||
663 | * New function `group_member' is a convenient way to check if a process has | |
664 | a given effective group ID. | |
665 | ||
666 | * When using GCC 2.7 and later, the socket functions are now declared in a | |
667 | special way so that passing an argument of type `struct sockaddr_in *', | |
668 | `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic | |
669 | `struct sockaddr *' type, does not generate a type-clash warning. | |
670 | ||
671 | * New function `error' declared in header file <error.h> is a convenient | |
6d52618b | 672 | function for printing error messages and optionally exiting; this is the |
71733723 RM |
673 | canonical function used in GNU programs. The new functions `err', `warn', |
674 | and friends in header file <err.h> are the canonical 4.4 BSD interface for | |
675 | doing the same thing. | |
676 | ||
677 | * The <glob.h> interface has several new flags from 4.4 BSD that extend the | |
678 | POSIX.2 `glob' function to do ~ and {...} expansion. | |
679 | ||
680 | * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD. | |
33a934a3 | 681 | `clearenv' which is used in POSIX.9 is also available. |
71733723 RM |
682 | |
683 | * New function `getsid' returns session ID number on systems that support it. | |
684 | ||
f7eac6eb RM |
685 | * We have incorporated the 4.4 BSD `db' library (version 1.85). New header |
686 | files <db.h> and <mpool.h> provide a rich set of functions for several | |
687 | types of simple databases stored in memory and in files, and <ndbm.h> is | |
6d52618b | 688 | an old `ndbm'-compatible interface using the `db' functions. Link with |
999493cb | 689 | `-ldb' to get these functions. |
f7eac6eb RM |
690 | |
691 | * New macro `strdupa' copies a string like `strdup', but uses local stack | |
692 | space from `alloca' instead of dynamic heap space from `malloc'. | |
52e9a9d1 RM |
693 | |
694 | * New function `strnlen' is like `strlen' but searches only a given maximum | |
33a934a3 UD |
695 | number of characters for the null terminator. `stpncpy', `strndup' and |
696 | `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa' | |
697 | function. | |
40a4b79f RM |
698 | |
699 | * New function `statfs' in header <sys/statfs.h>. | |
700 | ||
701 | * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader | |
702 | provide convenient functions for operating on blocks of null-terminated | |
703 | strings. | |
704 | ||
705 | * A new suite of functions in <utmp.h> handle all the details of reading | |
706 | and writing the utmp file. | |
33a934a3 UD |
707 | |
708 | * An implementation of the NIS/YP(tm) based NSS service was contributed by | |
709 | Thorsten Kukuk. | |
710 | ||
711 | * Paul Eggert and Ulrich Drepper modified the `strftime' function to be | |
712 | completely POSIX compliant and also implemented the extended functionality | |
713 | to handle alternate digit representation and alternate era date formats. | |
714 | ||
715 | * Ulrich Drepper provided an implementation of the `strptime' function | |
716 | defined in XPG4.2 which transforms a string into a `struct tm' value. | |
717 | ||
718 | * Paul Eggert provided the tzselect shell script as part of the timezone | |
719 | code. The shell script makes it easy to select the correct timezone | |
720 | specification. | |
721 | ||
722 | * The implementation of the malloc family of functions is completely replaced | |
723 | by a new implementation by Doug Lea with many improvements by Wolfram Gloger. | |
724 | The implementation uses the mmap function (if available) and it is | |
725 | optimized for the use in multi threaded programs. | |
726 | ||
727 | * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of | |
728 | functions. This new functionality is usable by specifying a special | |
729 | salt string and it is compatible with implementation on *BSD systems. | |
730 | ||
731 | * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper: | |
732 | `getsubopt' to handle second level command line options, `bsd_signal' | |
733 | to access BSD style `signal' functionality, the obsolete `regexp' style | |
734 | expression matcher. | |
735 | ||
736 | * the `lchown' function is available on system which support this | |
737 | functionality. | |
738 | ||
739 | * The implementation of the shadow password handling function was contributed | |
740 | by Ulrich Drepper. | |
741 | ||
742 | * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe. | |
743 | ||
744 | * POSIX.1g support was added. The <sys/select.h> header is available, | |
745 | `isfdtype' and `pselect' are implemented. Craig Metz contributed an | |
746 | implementation of `getaddrinfo'. | |
28f540f4 RM |
747 | \f |
748 | Version 1.09 | |
749 | ||
750 | * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'. | |
751 | ||
752 | * New header file <fstab.h> and new functions `getfsspec', `getfsent' and | |
753 | friends, for parsing /etc/fstab. This code comes from 4.4 BSD. | |
754 | ||
755 | * The new function `daemon' from 4.4 BSD is useful for server programs that | |
756 | want to put themselves in the background. | |
757 | ||
758 | * Joel Sherrill has contributed support for several standalone boards that | |
759 | run without an operating system. | |
760 | ||
761 | * `printf', `scanf' and friends now accept a `q' type modifier for long | |
762 | long int as well as `ll'. Formats using these might be `%qu' or `%lld'. | |
763 | ||
764 | * All of the code taken from BSD (notably most of the math and networking | |
765 | routines) has been updated from the BSD 4.4-Lite release. | |
766 | ||
767 | * The resolver code has been updated from the BIND-4.9.3-BETA9 release. | |
768 | ||
769 | * The new functions `getdomainname' and `setdomainname' fetch or change the | |
770 | YP/NIS domain name. These are system calls which exist on systems which | |
771 | have YP (aka NIS). | |
772 | ||
773 | * The time zone data files have been updated for the latest international | |
774 | conventions. | |
775 | ||
776 | * The SunRPC programs `portmap' and `rpcinfo' are now installed in | |
777 | $(sbindir) (usually /usr/local/sbin) instead of $(bindir). | |
778 | \f | |
779 | Version 1.08 | |
780 | ||
781 | * The C library now includes support for Sun RPC, from Sun's free | |
782 | RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs | |
783 | are included. (There is still no support for YP.) | |
784 | ||
785 | * Tom Quinn has contributed a port of the C library to SGI machines running | |
786 | Irix 4 (mips-sgi-irix4). | |
787 | ||
788 | * The new `lockf' function is a simplified interface to the locking | |
789 | facilities of `fcntl', included for compatibility. | |
790 | ||
791 | * New time functions `timegm', `timelocal', and `dysize' for compatibility. | |
792 | ||
793 | * New header file <sys/timeb.h> and new function `ftime' for compatibility. | |
794 | ||
795 | * New header files <poll.h> and <sys/poll.h> and new function `poll' for | |
796 | compatibility. | |
797 | ||
798 | * The error message printed by `assert' for a failed assertion now includes | |
799 | the name of the program (if using GNU ld) and the name of the calling | |
800 | function (with versions of GCC that support this). | |
801 | ||
802 | * The `psignal' function is now declared in <signal.h>, not <stdio.h>. | |
803 | ||
804 | * The library now includes the <sys/mman.h> header file and memory | |
805 | management functions `mmap', `munmap', `mprotect', `msync', and | |
806 | `madvise', on systems that support those facilities. | |
807 | ||
808 | * The interface for `mcheck' has changed slightly: the function called to | |
809 | abort the program when an allocation inconsistency is detected now takes | |
810 | an argument that indicates the type of failure. The new function | |
811 | `mprobe' lets you request a consistency check for a particular block at | |
812 | any time (checks are normally done only when you call `free' or `realloc' | |
813 | on a block). | |
814 | ||
815 | * It is now possible to easily cross-compile the C library, building on one | |
816 | system a library to run on another machine and/or operating system. All | |
817 | you need to do is set the variable `HOST_CC' in `configparms' to the | |
818 | native compiler for programs to run on the machine you are building on (a | |
819 | few generator programs are used on Unix systems); set `CC' to the | |
820 | cross-compiler. | |
821 | ||
822 | * The new function `fexecve' (only implemented on the GNU system) executes | |
823 | a program file given a file descriptor already open on the file. | |
824 | \f | |
825 | Version 1.07 | |
826 | ||
827 | * Brendan Kehoe has contributed most of a port to the DEC Alpha | |
828 | running OSF/1 (alpha-dec-osf1). He says it is 75% complete. | |
829 | ||
830 | * You can set the variable `libprefix' in `configparms' to specify a prefix | |
831 | to be prepended to installed library files; this makes it easy to install | |
832 | the GNU C library to be linked as `-lgnuc' or whatever. | |
833 | ||
834 | * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It | |
835 | copies a limited number of characters from a string, and returns the | |
836 | address of the last character written. | |
837 | ||
838 | * You no longer need to check for whether the installed `stddef.h' is | |
839 | compatible with the GNU C library. configure now checks for you. | |
840 | ||
841 | * You can now define a per-stream `fileno' function to convert the | |
842 | stream's cookie into an integral file descriptor. | |
843 | ||
844 | * ``malloc (0)'' no longer returns a null pointer. Instead, it | |
845 | allocates zero bytes of storage, and returns a unique pointer which | |
846 | you can pass to `realloc' or `free'. The behavior is undefined if | |
847 | you dereference this pointer. | |
848 | ||
849 | * The C library now runs on Sony NEWS m68k machines running either | |
850 | NewsOS 3 or NewsOS 4. | |
851 | ||
852 | * The new `syscall' function is a system-dependent primitive function | |
853 | for invoking system calls. It has the canonical behavior on Unix | |
854 | systems, including unreliable return values for some calls (such as | |
855 | `pipe', `fork' and `getppid'). | |
856 | ||
857 | * The error code `EWOULDBLOCK' is now obsolete; it is always defined | |
858 | to `EAGAIN', which is the preferred name. On systems whose kernels | |
859 | use two distinct codes, the C library now translates EWOULDBLOCK to | |
860 | EAGAIN in every system call function. | |
861 | \f | |
862 | Version 1.06 | |
863 | ||
864 | * The GNU C Library Reference Manual is now distributed with the library. | |
865 | `make dvi' will produce a DVI file of the printed manual. | |
866 | `make info' will produce Info files that you can read on line using C-h i | |
867 | in Emacs or the `info' program. | |
ea278354 | 868 | Please send comments on the manual to bug-glibc-manual@gnu.org. |
28f540f4 RM |
869 | |
870 | * The library now supports SVR4 on i386s (i386-unknown-sysv4). | |
871 | ||
872 | * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2. | |
873 | ||
874 | * Jason Merrill has contributed a port to the Sequent Symmetry running | |
875 | Dynix version 3 (i386-sequent-dynix). | |
876 | ||
877 | * The library has been ported to i386s running SCO 3.2.4 (also known as SCO | |
878 | ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2). | |
879 | ||
880 | * New function `memory_warnings' lets you arrange to get warnings when | |
881 | malloc is running out of memory to allocate, like Emacs gives you. | |
882 | ||
883 | * The C library now contains the relocating allocator used in Emacs 19 for | |
884 | its editing buffers. This allocator (ralloc) minimizes allocation | |
885 | overhead and fragmentation by moving allocated regions around whenever it | |
886 | needs to. You always refer to a ralloc'd region with a "handle" (a | |
887 | pointer to a pointer--an object of type `void **'). | |
888 | ||
889 | * There is a new `printf' format: `%m' gives you the string corresponding | |
890 | to the error code in `errno'. | |
891 | ||
892 | * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s' | |
893 | or `%[' conversion, but instead of filling in a fixed-sized buffer you | |
894 | pass, the `a' modifier says to fill in a `char **' you pass with a | |
895 | malloc'd string. | |
896 | ||
897 | * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and | |
898 | `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a | |
899 | name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching. | |
900 | ||
901 | * `mkstemp' is a traditional Unix function to atomically create and open a | |
902 | uniquely-named temporary file. | |
903 | \f | |
904 | Version 1.05 | |
905 | ||
906 | * The standard location for the file that says what the local timezone is | |
907 | has changed again. It is now `/usr/local/etc/localtime' (or more | |
908 | precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'. | |
909 | ||
910 | * The distribution no longer contains any files with names longer than 14 | |
911 | characters. | |
912 | ||
913 | * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE. | |
914 | These are set by the new `trusted' and `console' keywords in `/etc/ttys'. | |
915 | ||
916 | * New functions `ttyslot' and `syslog' from 4.4 BSD. | |
917 | \f | |
918 | Version 1.04 | |
919 | ||
920 | * The configuration process has changed quite a bit. The `configure' | |
921 | script is now used just like the configuration scripts for other GNU | |
922 | packages. The `sysdeps' directory hierarchy is much rearranged. | |
923 | The file `INSTALL' explains the new scheme in detail. | |
924 | ||
925 | * The header files no longer need to be processed into ANSI C and | |
926 | traditional C versions. There is just one set of files to install, and | |
927 | it will work with ANSI or old C compilers (including `gcc -traditional'). | |
928 | ||
929 | * Brendan Kehoe and Ian Lance Taylor have ported the library to the | |
930 | MIPS DECStation running Ultrix 4. | |
931 | ||
932 | * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries. | |
933 | Tom Quinn contributed the initial code. The GNU C library can NOT yet be | |
934 | made itself into a shared library. | |
935 | ||
936 | * Yet further improved support for the i386, running 4.3 BSD-like systems | |
937 | (such as Mach 3 with the Unix single-server), or System V. | |
938 | ||
939 | * New function `strncasecmp' to do case-insensitive string comparison | |
940 | with limited length. | |
941 | ||
942 | * New function `strsep' is a reentrant alternative to `strtok'. | |
943 | ||
944 | * New functions `scandir' and `alphasort' for searching directories. | |
945 | ||
946 | * New function `setenv' is a better interface to `putenv'. | |
947 | ||
948 | * Ian Lance Taylor has contributed an implementation of the SVID `ftw' | |
949 | function for traversing a directory tree. | |
950 | ||
951 | * The GNU obstack package is now also part of the C library. | |
952 | The new function `open_obstack_stream' creates a stdio stream that | |
953 | writes onto an obstack; `obstack_printf' and `obstack_vprintf' do | |
954 | formatted output directly to an obstack. | |
955 | ||
956 | * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only), | |
957 | cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid. | |
958 | ||
959 | * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'. | |
960 | ||
961 | * The new functions `strfry' and `memfrob' do mysterious and wonderful | |
962 | things to your strings. | |
963 | ||
964 | * There are some new test programs: test-fseek, testmb, and testrand. | |
965 | ||
966 | * Some work has been done to begin porting the library to 4.4 BSD and Linux. | |
967 | These ports are not finished, but are a good starting place for really | |
968 | supporting those systems. | |
969 | ||
970 | * `/etc/localtime' is now the standard location for the file that says what | |
971 | the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'. | |
972 | This follows the general principle that `/etc' is the place for all local | |
973 | configuration files. | |
974 | ||
975 | * The C library header files now use `extern "C"' when used by the C++ | |
976 | compiler, so the C library should now work with C++ code. | |
977 | ||
978 | * The header file <bstring.h> is gone. <string.h> now declares bcopy, | |
71733723 | 979 | bcmp, bzero, and ffs. |
28f540f4 RM |
980 | |
981 | * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting | |
982 | function which uses the `merge sort' algorithm, and is said to be | |
983 | significantly faster than the old GNU `qsort' function. Merge sort is | |
984 | now the standard `qsort' function. The new algorithm can require a lot | |
985 | of temporary storage; so, the old sorting function is called when the | |
986 | required storage is not available. | |
987 | ||
988 | * The C library now includes Michael Glad's Ultra Fast Crypt, which | |
989 | provides the Unix `crypt' function, plus some other entry points. | |
990 | Because of the United States export restriction on DES implementations, | |
991 | we are distributing this code separately from the rest of the C library. | |
992 | There is an extra distribution tar file just for crypt; it is called | |
993 | `glibc-VERSION-crypt.tar.Z', e.g. `glibc-1.04-crypt.tar.Z'. You can just | |
994 | unpack the crypt distribution along with the rest of the C library and | |
995 | build; you can also build the library without getting crypt. Users | |
996 | outside the USA can get the crypt distribution via anonymous FTP from | |
997 | ftp.uni-c.dk [129.142.6.74], or another archive site outside the U.S. | |
998 | ||
999 | * The code and header files taken from 4.4 BSD have been updated with the | |
1000 | latest files released from Berkeley. | |
1001 | \f | |
1002 | ---------------------------------------------------------------------- | |
1003 | Copyright information: | |
1004 | ||
71733723 | 1005 | Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc. |
28f540f4 RM |
1006 | |
1007 | Permission is granted to anyone to make or distribute verbatim copies | |
1008 | of this document as received, in any medium, provided that the | |
1009 | copyright notice and this permission notice are preserved, | |
1010 | thus giving the recipient permission to redistribute in turn. | |
1011 | ||
1012 | Permission is granted to distribute modified versions | |
1013 | of this document, or of portions of it, | |
1014 | under the above conditions, provided also that they | |
1015 | carry prominent notices stating who last changed them. | |
1016 | \f | |
1017 | Local variables: | |
1018 | version-control: never | |
1019 | end: |