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Diffstat (limited to 'libc/manual/locale.texi')
| -rw-r--r-- | libc/manual/locale.texi | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/libc/manual/locale.texi b/libc/manual/locale.texi index a11c7d854..8bfd653ed 100644 --- a/libc/manual/locale.texi +++ b/libc/manual/locale.texi @@ -224,6 +224,136 @@ The symbols in this section are defined in the header file @file{locale.h}. @comment locale.h @comment ISO @deftypefun {char *} setlocale (int @var{category}, const char *@var{locale}) +@safety{@prelim{}@mtunsafe{@mtasuconst{:@mtslocale{}} @mtsenv{}}@asunsafe{@asuinit{} @asulock{} @ascuheap{} @asucorrupt{}}@acunsafe{@acuinit{} @acucorrupt{} @aculock{} @acsmem{} @acsfd{}}} +@c Uses of the global locale object are unguarded in functions that +@c ought to be MT-Safe, so we're ruling out the use of this function +@c once threads are started. It takes a write lock itself, but it may +@c return a pointer loaded from the global locale object after releasing +@c the lock, or before taking it. +@c setlocale @mtasuconst:@mtslocale @mtsenv @asuinit @ascuheap @asulock @asucorrupt @acucorrupt @acsmem @acsfd @aculock +@c libc_rwlock_wrlock @asulock @aculock +@c libc_rwlock_unlock @aculock +@c getenv LOCPATH @mtsenv +@c malloc @ascuheap @acsmem +@c free @ascuheap @acsmem +@c new_composite_name ok +@c setdata ok +@c setname ok +@c _nl_find_locale @mtsenv @asuinit @ascuheap @asulock @asucorrupt @acucorrupt @acsmem @acsfd @aculock +@c getenv LC_ALL and LANG @mtsenv +@c _nl_load_locale_from_archive @ascuheap @acucorrupt @acsmem @acsfd +@c sysconf _SC_PAGE_SIZE ok +@c _nl_normalize_codeset @ascuheap @acsmem +@c isalnum_l ok (C locale) +@c isdigit_l ok (C locale) +@c malloc @ascuheap @acsmem +@c tolower_l ok (C locale) +@c open_not_cancel_2 @acsfd +@c fxstat64 ok +@c close_not_cancel_no_status ok +@c __mmap64 @acsmem +@c calculate_head_size ok +@c __munmap ok +@c compute_hashval ok +@c qsort dup @acucorrupt +@c rangecmp ok +@c malloc @ascuheap @acsmem +@c strdup @ascuheap @acsmem +@c _nl_intern_locale_data @ascuheap @acsmem +@c malloc @ascuheap @acsmem +@c free @ascuheap @acsmem +@c _nl_expand_alias @ascuheap @asulock @acsmem @acsfd @aculock +@c libc_lock_lock @asulock @aculock +@c bsearch ok +@c alias_compare ok +@c strcasecmp ok +@c read_alias_file @ascuheap @asulock @acsmem @acsfd @aculock +@c fopen @ascuheap @asulock @acsmem @acsfd @aculock +@c fsetlocking ok +@c feof_unlocked ok +@c fgets_unlocked ok +@c isspace ok (locale mutex is locked) +@c extend_alias_table @ascuheap @acsmem +@c realloc @ascuheap @acsmem +@c realloc @ascuheap @acsmem +@c fclose @ascuheap @asulock @acsmem @acsfd @aculock +@c qsort @ascuheap @acsmem +@c alias_compare dup +@c libc_lock_unlock @aculock +@c _nl_explode_name @ascuheap @acsmem +@c _nl_find_language ok +@c _nl_normalize_codeset dup @ascuheap @acsmem +@c _nl_make_l10nflist @ascuheap @acsmem +@c malloc @ascuheap @acsmem +@c free @ascuheap @acsmem +@c __argz_stringify ok +@c __argz_count ok +@c __argz_next ok +@c _nl_load_locale @ascuheap @acsmem @acsfd +@c open_not_cancel_2 @acsfd +@c __fxstat64 ok +@c close_not_cancel_no_status ok +@c mmap @acsmem +@c malloc @ascuheap @acsmem +@c read_not_cancel ok +@c free @ascuheap @acsmem +@c _nl_intern_locale_data dup @ascuheap @acsmem +@c munmap ok +@c __gconv_compare_alias @asuinit @ascuheap @asucorrupt @asulock @acsmem@acucorrupt @acsfd @aculock +@c __gconv_read_conf @asuinit @ascuheap @asucorrupt @asulock @acsmem@acucorrupt @acsfd @aculock +@c (libc_once-initializes gconv_cache and gconv_path_envvar; they're +@c never modified afterwards) +@c __gconv_load_cache @ascuheap @acsmem @acsfd +@c getenv GCONV_PATH @mtsenv +@c open_not_cancel @acsfd +@c __fxstat64 ok +@c close_not_cancel_no_status ok +@c mmap @acsmem +@c malloc @ascuheap @acsmem +@c __read ok +@c free @ascuheap @acsmem +@c munmap ok +@c __gconv_get_path @asulock @ascuheap @aculock @acsmem @acsfd +@c getcwd @ascuheap @acsmem @acsfd +@c libc_lock_lock @asulock @aculock +@c malloc @ascuheap @acsmem +@c strtok_r ok +@c libc_lock_unlock @aculock +@c read_conf_file @ascuheap @asucorrupt @asulock @acsmem @acucorrupt @acsfd @aculock +@c fopen @ascuheap @asulock @acsmem @acsfd @aculock +@c fsetlocking ok +@c feof_unlocked ok +@c getdelim @ascuheap @asucorrupt @acsmem @acucorrupt +@c isspace_l ok (C locale) +@c add_alias +@c isspace_l ok (C locale) +@c toupper_l ok (C locale) +@c add_alias2 dup @ascuheap @acucorrupt @acsmem +@c add_module @ascuheap @acsmem +@c isspace_l ok (C locale) +@c toupper_l ok (C locale) +@c strtol ok (@mtslocale but we hold the locale lock) +@c tfind __gconv_alias_db ok +@c __gconv_alias_compare dup ok +@c calloc @ascuheap @acsmem +@c insert_module dup @ascuheap +@c __tfind ok (because the tree is read only by then) +@c __gconv_alias_compare dup ok +@c insert_module @ascuheap +@c free @ascuheap +@c add_alias2 @ascuheap @acucorrupt @acsmem +@c detect_conflict ok, reads __gconv_modules_db +@c malloc @ascuheap @acsmem +@c tsearch __gconv_alias_db @ascuheap @acucorrupt @acsmem [exclusive tree, no @mtsrace] +@c __gconv_alias_compare ok +@c free @ascuheap +@c __gconv_compare_alias_cache ok +@c find_module_idx ok +@c do_lookup_alias ok +@c __tfind ok (because the tree is read only by then) +@c __gconv_alias_compare ok +@c strndup @ascuheap @acsmem +@c strcasecmp_l ok (C locale) The function @code{setlocale} sets the current locale for category @var{category} to @var{locale}. A list of all the locales the system provides can be created by running @@ -414,6 +544,10 @@ according to the selected locale using this information. @comment locale.h @comment ISO @deftypefun {struct lconv *} localeconv (void) +@safety{@prelim{}@mtunsafe{@mtasurace{:localeconv} @mtslocale{}}@asunsafe{}@acsafe{}} +@c This function reads from multiple components of the locale object, +@c without synchronization, while writing to the static buffer it uses +@c as the return value. The @code{localeconv} function returns a pointer to a structure whose components contain information about how numeric and monetary values should be formatted in the current locale. @@ -680,6 +814,9 @@ was introduced. @comment langinfo.h @comment XOPEN @deftypefun {char *} nl_langinfo (nl_item @var{item}) +@safety{@prelim{}@mtsafe{@mtslocale{}}@assafe{}@acsafe{}} +@c It calls _nl_langinfo_l with the current locale, which returns a +@c pointer into constant strings defined in locale data structures. The @code{nl_langinfo} function can be used to access individual elements of the locale categories. Unlike the @code{localeconv} function, which returns all the information, @code{nl_langinfo} @@ -974,6 +1111,11 @@ locale information, making it easier for the user to format numbers according to these rules. @deftypefun ssize_t strfmon (char *@var{s}, size_t @var{maxsize}, const char *@var{format}, @dots{}) +@safety{@prelim{}@mtsafe{@mtslocale{}}@asunsafe{@ascuheap{}}@acunsafe{@acsmem{}}} +@c It (and strfmon_l) both call vstrfmon_l, which, besides accessing the +@c locale object passed to it, accesses the active locale through +@c isdigit (but to_digit assumes ASCII digits only). It may call +@c __printf_fp (@mtslocale @ascuheap @acsmem) and guess_grouping (safe). The @code{strfmon} function is similar to the @code{strftime} function in that it takes a buffer, its size, a format string, and values to write into the buffer as text in a form specified @@ -1185,6 +1327,10 @@ access to the corresponding locale definitions. @comment GNU @comment stdlib.h @deftypefun int rpmatch (const char *@var{response}) +@safety{@prelim{}@mtsafe{@mtslocale{}}@asunsafe{@asucorrupt{} @ascuheap{} @asulock{} @ascudlopen{}}@acunsafe{@acucorrupt{} @aculock{} @acsmem{} @acsfd{}}} +@c Calls nl_langinfo with YESEXPR and NOEXPR, triggering @mtslocale but +@c it's regcomp and regexec that bring in all of the safety issues. +@c regfree is also called, but it doesn't introduce any further issues. The function @code{rpmatch} checks the string in @var{response} whether or not it is a correct yes-or-no answer and if yes, which one. The check uses the @code{YESEXPR} and @code{NOEXPR} data in the |