̾??

????

????

ʸ?????ؿ?

?????ꥢ????????????

void * malloc(size_t size)

size ?ǻ??ꤷ???礭???Υ?????????Ŭ?ʥ??르?ꥺ???ǥҡ????ΰ褫?????? ???Ƥޤ???

void free(void *ptr)

ptr ?˳??????Ƥ??줿???֥??????Ȥ????????ޤ???

void setheap(void *start, void *limit)

?ҡ????ΰ????????????ޤ??????δؿ??ϡ? alloc() ???ǽ??˸ƤӽФ????˼¹Ԥ??ʤ????Фʤ??ޤ????? start ?? limit ?δ֤??ΰ褬?ҡ????ΰ??˻??Ѥ????ޤ??? ???????ۤ??Ƴ??????Ƥ褦?Ȥ????? panic ?Ȥʤ??ޤ???

char * sbrk(int junk)

sbrk(0) ????????Ϳ???ޤ??????ʤ????ҡ????ΰ??κǹ??̥??ɥ쥹?Υݥ??󥿤? ?֤??ޤ????????????ͤϡ??ƥ??Ȼ??˥ҡ??פμ»??Ѿ?????Ƚ?Ǥ????Τ? ???ѤǤ??ޤ??????? junk ??̵?뤵???ޤ???

?Ķ?

char * getenv(const char *name)

int setenv(const char *name, char *value, int overwrite)

int putenv(const char *string)

int unsetenv(const char *name)

???????δؿ??ϡ?ɸ???饤?֥???????????ư???򤷤ޤ???

struct env_var * env_getenv(const char *name)

???δĶ????Ǥ??ѿ??򸡺????????٤ƤΥǡ?????¤???֤??ޤ???

int env_setenv(const char *name, int flags, char *value, ev_sethook_t sethook, ev_unsethook_t unsethook)

name ?Ȥ????Ķ??ѿ??ο????????ޤ??ϴ?¸?Ķ??ѿ??????????Ԥ??ޤ??? ?????ѿ????????????????ϡ????? sethook ?????? unsethook ?????ꤹ?뤳?Ȥ??Ǥ??ޤ???

EV_NOHOOK ?ե饰?????ꤵ???Ƥ??ʤ????С??ѿ??????򤷤褦?Ȥ????Ȥ????ȡ? ?եå??????꤬ɬ????ư?????ޤ????̾???? value ?γ?ǧ???Ԥʤ????ºݤ??ͤ???¸???뤿???? EV_NOHOOK ?ѿ????Ĥ??ơ????? env_setenv() ?ƤӽФ????Ԥ????ꤷ?ޤ??????٤Ƥ??ѿ??????????ݤ??뤿???ˡ??????Ѥߴؿ? env_noset() ?????ꤹ?뤳?Ȥ??Ǥ??ޤ???

?????????եå??ϡ??ѿ??????????????Ԥ??????Ȥ??˵?ư?????ޤ??? ?????ͤ? 0 ?ΤȤ????ѿ????????????????Ƥ??ޤ????????Ѥߴؿ? env_nounset ?ϡ??ѿ????????????????????Τ˻??Ѥ??ޤ???

ɸ???饤?֥??ꥵ?ݡ???

int getopt(int argc, char * const *argv, cont char *optstring)

long strtol(const char *nptr, char **endptr, int base)

void srandom(unsigned long seed)

unsigned long random(void)

char * strerror(int error)

libstand ?ǥ??ݡ??Ȥ????Ƥ??? errno ?Υ??֥??å??ͤ??б????? ???顼???å????????֤??ޤ???

assert(expression)

<assert.h> ?Ԥ?ɬ?פǤ???

int setjmp(jmp_buf env)

void longjmp(jmp_buf env, int val)

?????Ǥ??륷???ʥ????֤??ʤ????ᡢ???줾?? _setjmp() ?????? _lonjmp() ?Ȥ????????????Ƥ??ޤ??? <setjmp.h> ?Ԥ?ɬ?פǤ???

?????饯?? I/O

void gets(char *buf)

?????饯???򥳥󥽡??뤫?? buf ???ɤ߹??ߤޤ???ɸ??Ū?????ջ??ब?ܴؿ??? ?Ф???Ŭ?Ѥ????ޤ???

void ngets(char *buf, size_t size)

size -1 ?ޤ??Ϥ????ʲ???ʸ???򥳥󥽡??뤫?? buf ???ɤ߹??ߤޤ???????ʸ???Ϻ??????졢 ?Хåե??Ͼ??˥̥뤬??üʸ???ˤʤ??ޤ??? size ?? 1 ?ʲ??ξ??硢?ؿ??? gets() ??Ʊ??ư???򤷤ޤ???

int fgetstr(char *buf, int size, int fd)

???Ԥ? size ʸ???ʲ????ϰϤ? buf ???ɤ߹??ߤޤ????????Υ????饯?????ڤ??ΤƤ??졢 ?Хåե??Ͼ??˥̥뤬??ü?Ȥʤ??ޤ??? ???ｪλ?ΤȤ??? buf ????ʸ???????֤????ɤ߹??ߥ??顼?ΤȤ??? -1 ???֤??ޤ???

int printf(const char *fmt, ...)

void vprintf(const char *fmt, va_list ap)

int sprintf(char *buf, const char *fmt, ...)

void vsprintf(char *buf, const char *fmt, va_list ap)

*printf ?ؿ??ϡ?ɸ?? printf() ?ե??ߥ??Υ??֥??åȵ?ǽ?Ȥ????Ĥ??γ?ĥ??ǽ???????Ƥ??ޤ??? c,d,n,o,p,s,u,x ??ɸ???Ѵ??????ݡ??Ȥ????Ƥ??ޤ??? +,-,#,*,0, field width,precision,l ?ν????Ҥ????ݡ??Ȥ????Ƥ??ޤ???

???顼?쥸???????ǥ????ɤ??뤿???? b ?Ѵ????????äƤ??ޤ??? ?Ȥ????ϰʲ????̤??Ǥ???

printf( “reg=%b\n”, regval, “<base><arg>*” );

⟨base⟩ ?ϡ????業???饯???ν??Ϥ?ɽ?????Ƥ??ޤ????㤨?? \10 ?? 10 ?ʿ?????\20 ?? 16 ?ʿ?????̣???ޤ????? ⟨arg⟩ ?ϡ?ʸ?????ǡ??ǽ??ΰ?ʸ???ϰ????Υӥåȿ?(?Ϥ᤬1)?ǡ? ?ӥåȤ????ꤵ???Ƥ??????硢?????ʹߤ?ʸ????(32ʸ??̤??)??ɽ???оݤ? ?ƥ????ȤǤ????Ĥޤꡢ

printf( “reg=%b\n” 3 “\10\2BITTWO\1BITONE\n” );

?ˤ???????ɽ???????ޤ???

reg=3<BITTWO,BITONE>

D ?Ѵ??ϡ?16 ?ʿ??????פε?ǽ???????Ƥ??ޤ??? ???Ȥ??С??ʲ???

printf( “%6D”, ptr, “:” ); gives “XX:XX:XX:XX:XX:XX”

printf( “%*D”, len, ptr, “ ” ); gives “XX XX XX ...”

ʸ???ƥ??Ȥ??Ѵ?

int isupper(int c)

int islower(int c)

int isspace(int c)

int isdigit(int c)

int isxdigit(int c)

int isascii(int c)

int isalpha(int c)

int toupper(int c)

int tolower(int c)

?ե???????????

int open(const char *path, int flags)

open(2) ??ư???˻??Ƥ??ޤ????????????ե???????????ǽ?????ݡ??? ?????Ƥ??ʤ????ᡢ?⡼?ɥѥ??᡼???????פǤ??????? flags ?ˤϡ?O_RDONLY, O_WRONLY, O_RDWR ?Τɤ줫???????Ǥ??ޤ??? (???Ȥ??????߽????ߤ򥵥ݡ??Ȥ????ե????륷???ƥब̵???Ȥ??Ƥ?)

int close(int fd)

void closeall(void)

???٤Ƥ? open ?????Ƥ????ե????????Ĥ??ޤ???

ssize_t read(int fd, void *buf, size_t len)

ssize_t write(int fd, void *buf, size_t len)

(???߽񤭹??ߤ򥵥ݡ??Ȥ??Ƥ????ե????륷???ƥ??Ϥ????ޤ???)

off_t lseek(int fd, off_t offset, int whence)

?ɤ߹??ߤκ????˼?ưŪ?˲??व?????ե??????ϡ????ߤΰ??֤????????? seek ???뤳?ȤϤǤ??ޤ?????

int stat(const char *path, struct stat *sb)

int fstat(int fd, struct stat *sb)

?ؿ? stat() ?????? fstat() ?ϡ? sb ??¤?ΤΥե??????? : st_mode, st_nlink,st_uid,st_gid,st_size ?ؤν񤭹??ߤ????򤷤ޤ??? tftp ?ե????륷???ƥ??Ǥϡ????δؿ??θƤӽФ??? ??̣?Τ????ͤˤʤ??ޤ??󡣤ޤ? cd9660 ?ե????륷???ƥ??ϡ??ե??????? uid/gid ?????? 0 ?Ǥ????? ???𤷤????ޤ???

?ڡ?????

void pager_open()

?ڡ????????????????????ν??ϹԤ?ɽ?????֤???Ƭ?Ǥ??뤳?Ȥ??Τ餻?ޤ??? ?Ķ??ѿ? LINES ?ϡ????٤?ɽ????ǽ?ʹԿ??????????ݤ˻??Ȥ????ޤ???

void pager_close(void)

?ڡ????????Ĥ??ޤ?

int pager_output(char *lines)

lines ?ǻ??ꤵ?줿???̥??ǽ?λ?????Хåե??ιԤ??ڡ??????????????ޤ??? ????ʸ?????????뤳?Ȥǡ????Ϥ??????Կ??????ޤ??ޤ??? (?ޤ??֤??ϴޤߤޤ???) ???٤ƤιԤ????Ϥ??????ȡ? pager_output() ?? 0 ???֤??ޤ???????ɽ???????ߤ????桼???????潪λ?? ???򤷤??Ȥ??? 0 ?ʳ????ͤ??֤??ޤ???

int pager_file(char *fname)

?ե????? fname ?򳫤???????ɽ?????ޤ??????顼?ΤȤ??? -1 ???֤???EOF ?ΤȤ??? 0 ?򡢥桼?????ɤ߹??ߤ????潪λ?????????? 1 ???֤??ޤ???

????¾

void twiddle(void)

Ϣ³?ƤӽФ??ξ??硢?桼??????ǧ?Ǥ????褦?ˡ? ʸ???? |,/,-,\ ?θ??˥Хå????ڡ??????դ??ƽ??Ϥ??ޤ???

?????٥륵?ݡ??Ȥ??׵?

?????å??ϡ? libstand ?ؿ?????ư?????????˹??ۤ???ɬ?פ??????ޤ??? ?????å??׵??ϡ??ؿ????Ȥ????Ƥ????ե????륷???ƥࡢ?????ӡ????ǾܽҤ??? ???ݡ??ȥ쥤???ؿ??ˤ??ä??Ѳ????ޤ???

?ҡ??פϡ? alloc() ?ؿ??? open() ?ؿ??θƤӽФ??????ˡ? setheap() ?ƤӽФ????Ԥʤäƹ??ۤ??ʤ????Фʤ??ޤ??󡣥ҡ??פλ???ˡ?ϡ????饤?????Ȥ? ư????Ʊ?͡?Ʊ???? open ?????ե??????ο??ˤ??ä??Ѳ????ޤ?????ư???????? ???ȡ??ե??????? open ?????٤? 64K ?ʾ??Υǡ????????????Ƥ????ޤ???

???󥽡??륢???????ϡ????Ҥδؿ? getchar(), putchar(), ischar() ?ˤ??äƹԤ????ޤ???

?ǥХ????????????? devopen() ?ˤ??äƽ????????졢 devopen() ???֤??ǥХ????????å???¤?Τδؿ? dv_strategy(), dv_ioctl(), dv_close() ?ˤ??äƼ¹Ԥ????ޤ???

?桼???ϼ??Υ??ݡ??ȴؿ????Ѱդ???ɬ?פ??????ޤ???

int getchar(void)

???󥽡??뤫?顢?ؿ? gets(), ngets() ???ڡ??????ؿ??ˤ??äƻȤ?????ʸ?????֤??ޤ???

int ischar(void)

???󥽡??뤫???????Ԥ??ξ??֤ΤȤ???0 ?Ǥʤ??ͤ??֤??ޤ???

void putchar(int)

???󥽡????ˡ? gets(), ngets(), *printf(), panic(), twiddle() ?????? ¾??¿???ΥǥХå????????????Ѥδؿ??????Ѥ???ʸ?????񤭽Ф??ޤ???

int devopen(struct open_file *of, const char *name, char **file)

name ?Ȥ???̾???Υե??????Ѥ?Ŭ???ʥǥХ????򳫤????ǥХ????򻲾Ȥ??ʤ? ?ե??????λĤ?????ʬ?? name ???ؤ??ݥ??󥿤??? file ???֤??ޤ??? of ?ι?¤?Υե??????? f_dev ?ϡ????ｪλ???????硢open ?????ǥХ????? devsw ??¤?Τ??ؤ??褦?˥??åȤ????ޤ??? ?ǥХ??????̻Ҥϡ????˥ѥ?????????Ƭ?????? ɬ?פ??????ޤ??????????ʳ??ϼ?ͳ?˥ե????ޥåȤ????Ƥ??ޤ??? open() ?? ?ǥХ?????Ϣ?? I/O ?ǻ??Ѥ????ޤ???

int devclose(struct open_file *of)

of ?˳??????Ƥ??줿?ǥХ??????Ĥ??ޤ??? ?ǥХ????ɥ饤?м??Ȥϥ????????????Τ????ˤ??Ǥ˸ƤӽФ????Ԥ????Ƥ??ꡢ ???θƤӽФ??ϡ? devopen() ?ˤ??????????Ƥ??????????????Ǥ???

void panic(const char *msg, ...)

??̿Ū?Dz?????ǽ?ʥ??顼???֤????Τ??ޤ??????? msg ... ?ϡ? printf() ?Τ??Τ?Ʊ?ͤǤ???

?????ե????륷???ƥ?

ufs_fsops

BSD ?? UFS

ext2fs_fsops

Linux ?? ext2fs ?ե????륷???ƥ?

tftp_fsops

TFTP ??ͳ?Υե????륢??????

nfs_fsops

NFS ??ͳ?Υե????륢??????

cd9660_fsops

ISO 9660 (CD-ROM) ?ե????륷???ƥ?

zipfs_fsops

?ե??????򥵥ݡ??Ȥ??Ƥ????ե????륷???ƥ??? gzip ???줿?ե??????򥵥ݡ??Ȥ??륹???å? ???줿?ե????륷???ƥ??ǡ?zipfs ?ե????륷???ƥ????Ȥ????Ȥ????ȡ? libstand ?ϥե?????̾?θ??? .gz ???ղä????????̤Υե????륷???ƥ??????Ѥ??ƥե??????ΰ??֤??????ޤ??? ???Υե????륷???ƥ??Ρ????? file_system[] ?Ǥ????֤ˤ??äơ? non-gzipped ?ե??????򻲾Ȥ??Ƥ??? gzipped ?ե????뤬 open ?????뤫?ɤ??????????????ޤ??? gzip ???줿?ե????????????? seek ???뤳?Ȥ??????Ǥ???gzip ???줿?ե??????ؤ? stat() ?????? fstat() ?ϡ?Ĺ?????????????𤷤ޤ???

bzipfs_fsops

zipfs_fsops ??Ʊ?ͤǤ????? bzip2 ?ǰ??̤??줿?ե??????????Ѥ??ޤ???

??¤?? struct fs_ops ?Υݥ??????????ϥ̥??ǽ?λ???ʤ????Фʤ??ޤ?????

?ǥХ???

?Х?

????

• NetBSD ?????? libsa
• FreeBSD 3.0 ?????? libc ?? libkern
• Matthew Dillon ⟨dillon@backplane.com⟩ ?????? zalloc

?ƹ????? FreeBSD 3.0 ?ؤΥݡ??ȡ??Ķ??ѿ??ط??δؿ??????Υޥ˥奢???ڡ????? Mike Smith ⟨msmith@FreeBSD.org⟩ ?????????ޤ?????