diff options
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/ash.c | 547 |
1 files changed, 191 insertions, 356 deletions
diff --git a/shell/ash.c b/shell/ash.c index c1603d7..16c5ec0 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -211,10 +211,6 @@ #define digit_val(c) ((c) - '0') -#define _DIAGASSERT(x) - - - #define S_DFL 1 /* default signal handling (SIG_DFL) */ #define S_CATCH 2 /* signal is caught */ #define S_IGN 3 /* signal is ignored (SIG_IGN) */ @@ -304,10 +300,6 @@ typedef void *pointer; #define NULL (void *)0 #endif -static inline pointer ckmalloc (int sz) { return xmalloc(sz); } -static inline pointer ckrealloc(void *p, int sz) { return xrealloc(p, sz); } -static inline char * savestr (const char *s) { return xstrdup(s); } - static pointer stalloc (int); static void stunalloc (pointer); static void ungrabstackstr (char *, char *); @@ -1128,6 +1120,10 @@ static void deletefuncs(void); static void setparam (char **); static void freeparam (volatile struct shparam *); +static void find_command (const char *, struct cmdentry *, int, const char *); + +static inline void hashcd (void); + /* reasons for skipping commands (see comment on breakcmd routine) */ #define SKIPBREAK 1 #define SKIPCONT 2 @@ -1339,8 +1335,7 @@ static struct alias *freealias (struct alias *); static struct alias **__lookupalias (const char *); static void -setalias(name, val) - char *name, *val; +setalias(char *name, char *val) { struct alias *ap, **app; @@ -1351,13 +1346,13 @@ setalias(name, val) if (!(ap->flag & ALIASINUSE)) { ckfree(ap->val); } - ap->val = savestr(val); + ap->val = xstrdup(val); ap->flag &= ~ALIASDEAD; } else { /* not found */ - ap = ckmalloc(sizeof (struct alias)); - ap->name = savestr(name); - ap->val = savestr(val); + ap = xmalloc(sizeof (struct alias)); + ap->name = xstrdup(name); + ap->val = xstrdup(val); ap->flag = 0; ap->next = 0; *app = ap; @@ -1469,9 +1464,8 @@ unaliascmd(int argc, char **argv) } static struct alias ** -hashalias(p) - const char *p; - { +hashalias(const char *p) +{ unsigned int hashval; hashval = *p << 4; @@ -1481,7 +1475,8 @@ hashalias(p) } static struct alias * -freealias(struct alias *ap) { +freealias(struct alias *ap) +{ struct alias *next; if (ap->flag & ALIASINUSE) { @@ -1498,7 +1493,8 @@ freealias(struct alias *ap) { static struct alias ** -__lookupalias(const char *name) { +__lookupalias(const char *name) +{ struct alias **app = hashalias(name); for (; *app; app = &(*app)->next) { @@ -1727,7 +1723,6 @@ static int forkshell (struct job *, const union node *, int); static int waitforjob (struct job *); static int docd (char *, int); -static void updatepwd (const char *); static void getpwd (void); static char *padvance (const char **, const char *); @@ -1736,9 +1731,7 @@ static char nullstr[1]; /* zero length string */ static char *curdir = nullstr; /* current working directory */ static int -cdcmd(argc, argv) - int argc; - char **argv; +cdcmd(int argc, char **argv) { const char *dest; const char *path; @@ -1798,40 +1791,29 @@ docd(char *dest, int print) INTON; return -1; } - updatepwd(dest); + hashcd(); + /* + * Update curdir (the name of the current directory) in response to a + * cd command. We also call hashcd to let the routines in exec.c know + * that the current directory has changed. + */ + /* If dest is NULL, we don't know the current directory */ + if (dest == NULL || curdir == nullstr) + setpwd(0, 1); + else + setpwd(dest, 1); + INTON; if (print && iflag) - printf(snlfmt, curdir); + puts(curdir); return 0; } -/* - * Update curdir (the name of the current directory) in response to a - * cd command. We also call hashcd to let the routines in exec.c know - * that the current directory has changed. - */ - -static void hashcd (void); - -static void -updatepwd(const char *dir) -{ - hashcd(); /* update command hash table */ - - /* If our argument is NULL, we don't know the current directory */ - if (dir == NULL || curdir == nullstr) { - setpwd(0, 1); - return; - } - setpwd(dir, 1); -} - - static int pwdcmd(int argc, char **argv) { - printf(snlfmt, curdir); + puts(curdir); return 0; } @@ -2134,7 +2116,6 @@ static int oexitstatus; /* saved exit status */ static void evalsubshell (const union node *, int); static void expredir (union node *); -static void prehash (union node *); static void eprintlist (struct strlist *); static union node *parsecmd(int); @@ -2148,9 +2129,7 @@ static union node *parsecmd(int); static void evalstring (char *, int); static int -evalcmd(argc, argv) - int argc; - char **argv; +evalcmd(int argc, char **argv) { char *p; char *concat; @@ -2226,7 +2205,7 @@ copyfunc(union node *n) funcblocksize = 0; funcstringsize = 0; calcsize(n); - funcblock = ckmalloc(funcblocksize + funcstringsize); + funcblock = xmalloc(funcblocksize + funcstringsize); funcstring = (char *) funcblock + funcblocksize; return copynode(n); } @@ -2384,7 +2363,18 @@ static inline void evalpipe(union node *n) jp = makejob(n, pipelen); prevfd = -1; for (lp = n->npipe.cmdlist ; lp ; lp = lp->next) { - prehash(lp->n); + /* + * Search for a command. This is called before we fork so that the + * location of the command will be available in the parent as well as + * the child. The check for "goodname" is an overly conservative + * check that the name will not be subject to expansion. + */ + + struct cmdentry entry; + union node *lpn = lp->n; + if (lpn->type == NCMD && lpn->ncmd.args && goodname(lpn->ncmd.args->narg.text)) + find_command(lpn->ncmd.args->narg.text, &entry, 0, pathval()); + pip[1] = -1; if (lp->next) { if (pipe(pip) < 0) { @@ -2428,8 +2418,6 @@ static inline void evalpipe(union node *n) } } -static void find_command (const char *, struct cmdentry *, int, const char *); - static int isassignment(const char *word) { if (!is_name(*word)) { @@ -2750,9 +2738,7 @@ out: * exitstatus. */ static void -evaltree(n, flags) - union node *n; - int flags; +evaltree(union node *n, int flags) { int checkexit = 0; if (n == NULL) { @@ -2972,25 +2958,6 @@ out: * Execute a simple command. */ -/* - * Search for a command. This is called before we fork so that the - * location of the command will be available in the parent as well as - * the child. The check for "goodname" is an overly conservative - * check that the name will not be subject to expansion. - */ - -static void -prehash(n) - union node *n; -{ - struct cmdentry entry; - - if (n->type == NCMD && n->ncmd.args) - if (goodname(n->ncmd.args->narg.text)) - find_command(n->ncmd.args->narg.text, &entry, 0, - pathval()); -} - /* * Builtin commands. Builtin commands whose functions are closely @@ -3003,9 +2970,7 @@ prehash(n) */ int -bltincmd(argc, argv) - int argc; - char **argv; +bltincmd(int argc, char **argv) { /* * Preserve exitstatus of a previous possible redirection @@ -3027,9 +2992,7 @@ bltincmd(argc, argv) */ static int -breakcmd(argc, argv) - int argc; - char **argv; +breakcmd(int argc, char **argv) { int n = argc > 1 ? number(argv[1]) : 1; @@ -3048,9 +3011,7 @@ breakcmd(argc, argv) */ static int -returncmd(argc, argv) - int argc; - char **argv; +returncmd(int argc, char **argv) { int ret = argc > 1 ? number(argv[1]) : oexitstatus; @@ -3070,9 +3031,7 @@ returncmd(argc, argv) #ifndef CONFIG_FALSE static int -false_main(argc, argv) - int argc; - char **argv; +false_main(int argc, char **argv) { return 1; } @@ -3080,9 +3039,7 @@ false_main(argc, argv) #ifndef CONFIG_TRUE static int -true_main(argc, argv) - int argc; - char **argv; +true_main(int argc, char **argv) { return 0; } @@ -3132,9 +3089,7 @@ optschanged(void) static int -execcmd(argc, argv) - int argc; - char **argv; +execcmd(int argc, char **argv) { if (argc > 1) { struct strlist *sp; @@ -3165,10 +3120,7 @@ eprintlist(struct strlist *sp) static const char *pathopt; /* set by padvance */ static void -shellexec(argv, envp, path, idx) - char **argv, **envp; - const char *path; - int idx; +shellexec(char **argv, char **envp, const char *path, int idx) { char *cmdname; int e; @@ -3208,7 +3160,8 @@ shellexec(argv, envp, path, idx) * Clear traps on a fork. */ static void -clear_traps(void) { +clear_traps(void) +{ char **tp; for (tp = trap ; tp < &trap[NSIG] ; tp++) { @@ -3225,7 +3178,8 @@ clear_traps(void) { static void -initshellproc(void) { +initshellproc(void) +{ #ifdef ASH_ALIAS /* from alias.c: */ @@ -3326,7 +3280,8 @@ static void pungetc(void) static void -popfile(void) { +popfile(void) +{ struct parsefile *pf = parsefile; INTOFF; @@ -3351,7 +3306,8 @@ popfile(void) { */ static void -popallfiles(void) { +popallfiles(void) +{ while (parsefile != &basepf) popfile(); } @@ -3389,7 +3345,7 @@ static void setinputfd(int fd, int push) } parsefile->fd = fd; if (parsefile->buf == NULL) - parsefile->buf = ckmalloc(BUFSIZ); + parsefile->buf = xmalloc(BUFSIZ); parselleft = parsenleft = 0; plinno = 1; } @@ -3447,7 +3403,7 @@ tryexec(char *cmd, char **argv, char **envp) INTOFF; initshellproc(); setinputfile(cmd, 0); - commandname = arg0 = savestr(argv[0]); + commandname = arg0 = xstrdup(argv[0]); setparam(argv + 1); exraise(EXSHELLPROC); } @@ -3531,9 +3487,7 @@ findkwd(const char *s) static int -hashcmd(argc, argv) - int argc; - char **argv; +hashcmd(int argc, char **argv) { struct tblentry **pp; struct tblentry *cmdp; @@ -3585,7 +3539,7 @@ hashcmd(argc, argv) if (verbose=='v') printf("%s is a shell keyword\n", name); else - printf(snlfmt, name); + puts(name); continue; } @@ -3601,10 +3555,8 @@ hashcmd(argc, argv) } static void -printentry(cmdp, verbose) - struct tblentry *cmdp; - int verbose; - { +printentry(struct tblentry *cmdp, int verbose) +{ int idx; const char *path; char *name; @@ -3636,7 +3588,7 @@ printentry(cmdp, verbose) error("internal error: cmdtype %d", cmdp->cmdtype); #endif } - printf(snlfmt, cmdp->rehash ? "*" : nullstr); + puts(cmdp->rehash ? "*" : nullstr); } @@ -3892,8 +3844,9 @@ find_builtin(const char *name) * are executed they will be rehashed. */ -static void -hashcd(void) { +static inline void +hashcd(void) +{ struct tblentry **pp; struct tblentry *cmdp; @@ -3934,8 +3887,7 @@ changepath(const char *newval) */ static void -clearcmdentry(firstchange) - int firstchange; +clearcmdentry(int firstchange) { struct tblentry **tblp; struct tblentry **pp; @@ -3965,7 +3917,8 @@ clearcmdentry(firstchange) */ static void -deletefuncs(void) { +deletefuncs(void) +{ struct tblentry **tblp; struct tblentry **pp; struct tblentry *cmdp; @@ -4019,7 +3972,7 @@ cmdlookup(const char *name, int add) } if (add && cmdp == NULL) { INTOFF; - cmdp = *pp = ckmalloc(sizeof (struct tblentry) - ARB + cmdp = *pp = xmalloc(sizeof (struct tblentry) - ARB + strlen(name) + 1); cmdp->next = NULL; cmdp->cmdtype = CMDUNKNOWN; @@ -4036,7 +3989,8 @@ cmdlookup(const char *name, int add) */ static void -delete_cmd_entry() { +delete_cmd_entry() +{ struct tblentry *cmdp; INTOFF; @@ -4121,9 +4075,7 @@ typecmd(int argc, char **argv) #ifdef ASH_CMDCMD static int -commandcmd(argc, argv) - int argc; - char **argv; +commandcmd(int argc, char **argv) { int c; int default_path = 0; @@ -4166,9 +4118,7 @@ commandcmd(argc, argv) #endif static int -path_change(newval, bltin) - const char *newval; - int *bltin; +path_change(const char *newval, int *bltin) { const char *old, *new; int idx; @@ -4235,7 +4185,7 @@ static void expbackq (union node *, int, int); static int subevalvar (char *, char *, int, int, int, int, int); static int varisset (char *, int); static void strtodest (const char *, int, int); -static void varvalue (char *, int, int); +static inline void varvalue (char *, int, int); static void recordregion (int, int, int); static void removerecordregions (int); static void ifsbreakup (char *, struct arglist *); @@ -4244,7 +4194,7 @@ static void expandmeta (struct strlist *, int); #if defined(__GLIBC__) && __GLIBC__ >= 2 && !defined(FNMATCH_BROKEN) #define preglob(p) _rmescapes((p), RMESCAPE_ALLOC | RMESCAPE_GLOB) #if !defined(GLOB_BROKEN) -static void addglob (const glob_t *); +static inline void addglob (const glob_t *); #endif #endif #if !(defined(__GLIBC__) && __GLIBC__ >= 2 && !defined(FNMATCH_BROKEN) && !defined(GLOB_BROKEN)) @@ -4285,10 +4235,7 @@ expandhere(union node *arg, int fd) */ static void -expandarg(arg, arglist, flag) - union node *arg; - struct arglist *arglist; - int flag; +expandarg(union node *arg, struct arglist *arglist, int flag) { struct strlist *sp; char *p; @@ -4496,9 +4443,7 @@ record: */ static void -argstr(p, flag) - char *p; - int flag; +argstr(char *p, int flag) { char c; int quotes = flag & (EXP_FULL | EXP_CASE); /* do CTLESC */ @@ -4510,7 +4455,7 @@ argstr(p, flag) switch (c = *p++) { case '\0': case CTLENDVAR: /* ??? */ - goto breakloop; + return; case CTLQUOTEMARK: /* "$@" syntax adherence hack */ if (p[0] == CTLVAR && p[2] == '@' && p[3] == '=') @@ -4558,14 +4503,11 @@ argstr(p, flag) STPUTC(c, expdest); } } -breakloop:; return; } static char * -exptilde(p, flag) - char *p; - int flag; +exptilde(char *p, int flag) { char c, *startp = p; struct passwd *pw; @@ -4720,10 +4662,7 @@ expari(int flag) */ static void -expbackq(cmd, quoted, flag) - union node *cmd; - int quoted; - int flag; +expbackq(union node *cmd, int quoted, int flag) { volatile struct backcmd in; int i; @@ -4824,14 +4763,7 @@ err2: } static int -subevalvar(p, str, strloc, subtype, startloc, varflags, quotes) - char *p; - char *str; - int strloc; - int subtype; - int startloc; - int varflags; - int quotes; +subevalvar(char *p, char *str, int strloc, int subtype, int startloc, int varflags, int quotes) { char *startp; char *loc = NULL; @@ -4952,9 +4884,7 @@ recordright: */ static int -varisset(name, nulok) - char *name; - int nulok; +varisset(char *name, int nulok) { if (*name == '!') return backgndpid != -1; @@ -5006,7 +4936,7 @@ strtodest(const char *p, int syntax, int quotes) * Add the value of a specialized variable to the stack string. */ -static void +static inline void varvalue(char *name, int quoted, int flags) { int num; @@ -5081,10 +5011,7 @@ param: */ static void -recordregion(start, end, nulonly) - int start; - int end; - int nulonly; +recordregion(int start, int end, int nulonly) { struct ifsregion *ifsp; @@ -5092,7 +5019,7 @@ recordregion(start, end, nulonly) ifsp = &ifsfirst; } else { INTOFF; - ifsp = (struct ifsregion *)ckmalloc(sizeof (struct ifsregion)); + ifsp = (struct ifsregion *)xmalloc(sizeof (struct ifsregion)); ifsp->next = NULL; ifslastp->next = ifsp; INTON; @@ -5111,10 +5038,8 @@ recordregion(start, end, nulonly) * searched for IFS characters have been stored by recordregion. */ static void -ifsbreakup(string, arglist) - char *string; - struct arglist *arglist; - { +ifsbreakup(char *string, struct arglist *arglist) +{ struct ifsregion *ifsp; struct strlist *sp; char *start; @@ -5195,7 +5120,7 @@ ifsbreakup(string, arglist) } static void -ifsfree() +ifsfree(void) { while (ifsfirst.next != NULL) { struct ifsregion *ifsp; @@ -5233,9 +5158,7 @@ addfname(const char *name) #if defined(__GLIBC__) && __GLIBC__ >= 2 && !defined(FNMATCH_BROKEN) && !defined(GLOB_BROKEN) static void -expandmeta(str, flag) - struct strlist *str; - int flag; +expandmeta(struct strlist *str, int flag) { const char *p; glob_t pglob; @@ -5275,9 +5198,8 @@ nometa: * Add the result of glob(3) to the list. */ -static void -addglob(pglob) - const glob_t *pglob; +static inline void +addglob(const glob_t *pglob) { char **p = pglob->gl_pathv; @@ -5292,9 +5214,7 @@ static char *expdir; static void -expandmeta(str, flag) - struct strlist *str; - int flag; +expandmeta(struct strlist str, int flag) { char *p; struct strlist **savelastp; @@ -5316,7 +5236,7 @@ expandmeta(str, flag) INTOFF; if (expdir == NULL) { int i = strlen(str->text); - expdir = ckmalloc(i < 2048 ? 2048 : i); /* XXX */ + expdir = xmalloc(i < 2048 ? 2048 : i); /* XXX */ } expmeta(expdir, str->text); @@ -5348,10 +5268,8 @@ nometa: */ static void -expmeta(enddir, name) - char *enddir; - char *name; - { +expmeta(char *enddir, char *name) +{ char *p; const char *cp; char *q; @@ -5484,9 +5402,8 @@ expmeta(enddir, name) */ static struct strlist * -expsort(str) - struct strlist *str; - { +expsort(struct strlist *str) +{ int len; struct strlist *sp; @@ -5498,9 +5415,7 @@ expsort(str) static struct strlist * -msort(list, len) - struct strlist *list; - int len; +msort(struct strlist *list, int len) { struct strlist *p, *q = NULL; struct strlist **lpp; @@ -5743,8 +5658,7 @@ _rmescapes(char *str, int flag) } #else static void -rmescapes(str) - char *str; +rmescapes(char *str) { char *p, *q; @@ -5797,10 +5711,8 @@ casematch(union node *pattern, const char *val) */ static char * -cvtnum(num, buf) - int num; - char *buf; - { +cvtnum(int num, char *buf) +{ int len; CHECKSTRSPACE(32, buf); @@ -5811,9 +5723,7 @@ cvtnum(num, buf) /* * Editline and history functions (and glue). */ -static int histcmd(argc, argv) - int argc; - char **argv; +static int histcmd(int argc, char **argv) { error("not compiled with history support"); /* NOTREACHED */ @@ -6133,7 +6043,7 @@ pushstring(char *s, int len, void *ap) INTOFF; /*dprintf("*** calling pushstring: %s, %d\n", s, len);*/ if (parsefile->strpush) { - sp = ckmalloc(sizeof (struct strpush)); + sp = xmalloc(sizeof (struct strpush)); sp->prev = parsefile->strpush; parsefile->strpush = sp; } else @@ -6177,14 +6087,15 @@ setinputstring(char *string) */ static void -pushfile(void) { +pushfile(void) +{ struct parsefile *pf; parsefile->nleft = parsenleft; parsefile->lleft = parselleft; parsefile->nextc = parsenextc; parsefile->linno = plinno; - pf = (struct parsefile *)ckmalloc(sizeof (struct parsefile)); + pf = (struct parsefile *)xmalloc(sizeof (struct parsefile)); pf->prev = parsefile; pf->fd = -1; pf->strpush = NULL; @@ -6289,9 +6200,7 @@ static void setjobctl(int enable) #ifdef JOBS static int -killcmd(argc, argv) - int argc; - char **argv; +killcmd(int argc, char **argv) { int signo = -1; int list = 0; @@ -6351,13 +6260,13 @@ usage: for (i = 1; i < NSIG; i++) { name = u_signal_names(0, &i, 1); if(name) - printf(snlfmt, name); + puts(name); } return 0; } name = u_signal_names(*argptr, &signo, -1); if (name) - printf(snlfmt, name); + puts(name); else error("invalid signal number or exit status: %s", *argptr); @@ -6381,9 +6290,7 @@ usage: } static int -fgcmd(argc, argv) - int argc; - char **argv; +fgcmd(int argc, char **argv) { struct job *jp; int pgrp; @@ -6407,9 +6314,7 @@ fgcmd(argc, argv) static int -bgcmd(argc, argv) - int argc; - char **argv; +bgcmd(int argc, char **argv) { struct job *jp; @@ -6424,8 +6329,7 @@ bgcmd(argc, argv) static void -restartjob(jp) - struct job *jp; +restartjob(struct job *jp) { struct procstat *ps; int i; @@ -6448,9 +6352,7 @@ static void showjobs(int change); static int -jobscmd(argc, argv) - int argc; - char **argv; +jobscmd(int argc, char **argv) { showjobs(0); return 0; @@ -6467,8 +6369,7 @@ jobscmd(argc, argv) */ static void -showjobs(change) - int change; +showjobs(int change) { int jobno; int procno; @@ -6564,9 +6465,7 @@ freejob(struct job *jp) static int -waitcmd(argc, argv) - int argc; - char **argv; +waitcmd(int argc, char **argv) { struct job *job; int status, retval; @@ -6687,9 +6586,9 @@ makejob(const union node *node, int nprocs) if (--i < 0) { INTOFF; if (njobs == 0) { - jobtab = ckmalloc(4 * sizeof jobtab[0]); + jobtab = xmalloc(4 * sizeof jobtab[0]); } else { - jp = ckmalloc((njobs + 4) * sizeof jobtab[0]); + jp = xmalloc((njobs + 4) * sizeof jobtab[0]); memcpy(jp, jobtab, njobs * sizeof jp[0]); /* Relocate `ps' pointers */ for (i = 0; i < njobs; i++) @@ -6715,7 +6614,7 @@ makejob(const union node *node, int nprocs) jp->jobctl = jobctl; #endif if (nprocs > 1) { - jp->ps = ckmalloc(nprocs * sizeof (struct procstat)); + jp->ps = xmalloc(nprocs * sizeof (struct procstat)); } else { jp->ps = &jp->ps0; } @@ -7507,7 +7406,7 @@ commandtext(const union node *n) { char *name; - cmdnextc = name = ckmalloc(MAXCMDTEXT); + cmdnextc = name = xmalloc(MAXCMDTEXT); cmdnleft = MAXCMDTEXT - 4; cmdtxt(n); *cmdnextc = '\0'; @@ -7606,9 +7505,7 @@ static void procargs (int, char **); */ int -ash_main(argc, argv) - int argc; - char **argv; +ash_main(int argc, char **argv) { struct jmploc jmploc; struct stackmark smark; @@ -7788,8 +7685,7 @@ cmdloop(int top) */ static void -read_profile(name) - const char *name; +read_profile(const char *name) { int fd; int xflag_save; @@ -7870,16 +7766,14 @@ find_dot_file(char *mybasename) } static int -dotcmd(argc, argv) - int argc; - char **argv; +dotcmd(int argc, char **argv) { struct strlist *sp; volatile struct shparam saveparam; exitstatus = 0; for (sp = cmdenviron; sp ; sp = sp->next) - setvareq(savestr(sp->text), VSTRFIXED|VTEXTFIXED); + setvareq(xstrdup(sp->text), VSTRFIXED|VTEXTFIXED); if (argc >= 2) { /* That's what SVR2 does */ char *fullname; @@ -7912,9 +7806,7 @@ dotcmd(argc, argv) static int -exitcmd(argc, argv) - int argc; - char **argv; +exitcmd(int argc, char **argv) { if (stoppedjobs()) return 0; @@ -7940,7 +7832,7 @@ stalloc(int nbytes) if (blocksize < MINSIZE) blocksize = MINSIZE; INTOFF; - sp = ckmalloc(sizeof(struct stack_block) - MINSIZE + blocksize); + sp = xmalloc(sizeof(struct stack_block) - MINSIZE + blocksize); sp->prev = stackp; stacknxt = sp->space; stacknleft = blocksize; @@ -8024,7 +7916,7 @@ growstackblock(void) { oldstackp = stackp; sp = stackp; stackp = sp->prev; - sp = ckrealloc((pointer)sp, sizeof(struct stack_block) - MINSIZE + newlen); + sp = xrealloc((pointer)sp, sizeof(struct stack_block) - MINSIZE + newlen); sp->prev = stackp; stackp = sp; stacknxt = sp->space; @@ -8225,9 +8117,7 @@ readcmd(int argc, char **argv) static int -umaskcmd(argc, argv) - int argc; - char **argv; +umaskcmd(int argc, char **argv) { static const char permuser[3] = "ugo"; static const char permmode[3] = "rwx"; @@ -8345,9 +8235,7 @@ static const struct limits limits[] = { }; static int -ulimitcmd(argc, argv) - int argc; - char **argv; +ulimitcmd(int argc, char **argv) { static const char unlimited_string[] = "unlimited"; int c; @@ -8530,7 +8418,8 @@ number(const char *s) */ static char * -single_quote(const char *s) { +single_quote(const char *s) +{ char *p; STARTSTACKSTR(p); @@ -8594,7 +8483,7 @@ sstrdup(const char *p) static void sizenodelist (const struct nodelist *); static struct nodelist *copynodelist (const struct nodelist *); -static char *nodesavestr (const char *); +static char *nodexstrdup (const char *); #define CALCSIZE_TABLE #define COPYNODE_TABLE @@ -8736,7 +8625,7 @@ copynode(const union node *n) if (!(*p & NODE_MBRMASK)) { /* standard node */ *((union node **)nn) = copynode(*((const union node **) no)); } else if ((*p & NODE_MBRMASK) == NODE_CHARPTR) { /* string */ - *((const char **)nn) = nodesavestr(*((const char **)no)); + *((const char **)nn) = nodexstrdup(*((const char **)no)); } else if (*p & NODE_NODELIST) { /* nodelist */ *((struct nodelist **)nn) = copynodelist(*((const struct nodelist **) no)); @@ -8787,7 +8676,7 @@ copynode(const union node *n) new->nif.test = copynode(n->nif.test); break; case NFOR: - new->nfor.var = nodesavestr(n->nfor.var); + new->nfor.var = nodexstrdup(n->nfor.var); new->nfor.body = copynode(n->nfor.body); new->nfor.args = copynode(n->nfor.args); break; @@ -8803,7 +8692,7 @@ copynode(const union node *n) case NDEFUN: case NARG: new->narg.backquote = copynodelist(n->narg.backquote); - new->narg.text = nodesavestr(n->narg.text); + new->narg.text = nodexstrdup(n->narg.text); new->narg.next = copynode(n->narg.next); break; case NTO: @@ -8971,7 +8860,7 @@ copynodelist(const struct nodelist *lp) static char * -nodesavestr(const char *s) +nodexstrdup(const char *s) { const char *p = s; char *q = funcstring; @@ -8993,9 +8882,7 @@ static int getopts (char *, char *, char **, int *, int *); */ static void -procargs(argc, argv) - int argc; - char **argv; +procargs(int argc, char **argv) { int i; @@ -9154,9 +9041,9 @@ setparam(char **argv) int nparam; for (nparam = 0 ; argv[nparam] ; nparam++); - ap = newparam = ckmalloc((nparam + 1) * sizeof *ap); + ap = newparam = xmalloc((nparam + 1) * sizeof *ap); while (*argv) { - *ap++ = savestr(*argv++); + *ap++ = xstrdup(*argv++); } *ap = NULL; freeparam(&shellparam); @@ -9191,9 +9078,7 @@ freeparam(volatile struct shparam *param) */ static int -shiftcmd(argc, argv) - int argc; - char **argv; +shiftcmd(int argc, char **argv) { int n; char **ap1, **ap2; @@ -9224,9 +9109,7 @@ shiftcmd(argc, argv) */ static int -setcmd(argc, argv) - int argc; - char **argv; +setcmd(int argc, char **argv) { if (argc == 1) return showvarscmd(argc, argv); @@ -9272,9 +9155,7 @@ static void change_lc_ctype(const char *value) */ static int -getoptscmd(argc, argv) - int argc; - char **argv; +getoptscmd(int argc, char **argv) { char **optbase; @@ -9304,9 +9185,7 @@ getoptscmd(argc, argv) */ static int -setvarsafe(name, val, flags) - const char *name, *val; - int flags; +setvarsafe(const char *name, const char *val, int flags) { struct jmploc jmploc; struct jmploc *volatile savehandler = handler; @@ -9326,12 +9205,7 @@ setvarsafe(name, val, flags) } static int -getopts(optstr, optvar, optfirst, myoptind, optoff) - char *optstr; - char *optvar; - char **optfirst; - int *myoptind; - int *optoff; +getopts(char *optstr, char *optvar, char **optfirst, int *myoptind, int *optoff) { char *p, *q; char c = '?'; @@ -9591,8 +9465,7 @@ parsecmd(int interact) static union node * -list(nlflag) - int nlflag; +list(int nlflag) { union node *n1, *n2, *n3; int tok; @@ -10853,7 +10726,7 @@ parsebackq: { str = NULL; savelen = out - stackblock(); if (savelen > 0) { - str = ckmalloc(savelen); + str = xmalloc(savelen); memcpy(str, stackblock(), savelen); } savehandler = handler; @@ -11012,9 +10885,8 @@ parsearith: { */ static int -noexpand(text) - char *text; - { +noexpand(char *text) +{ char *p; char c; @@ -11059,8 +10931,7 @@ goodname(const char *name) */ static void -synexpect(token) - int token; +synexpect(int token) { char msg[64]; int l; @@ -11308,7 +11179,7 @@ redirect(union node *redir, int flags) int fd1dup = flags & REDIR_BACKQ;; /* stdout `cmd` redir to pipe */ if (flags & REDIR_PUSH) { - sv = ckmalloc(sizeof (struct redirtab)); + sv = xmalloc(sizeof (struct redirtab)); for (i = 0 ; i < 10 ; i++) sv->renamed[i] = EMPTY; sv->next = redirlist; @@ -11440,9 +11311,7 @@ clearredir(void) { */ static int -dup_as_newfd(from, to) - int from; - int to; +dup_as_newfd(int from, int to) { int newfd; @@ -11477,11 +11346,7 @@ showtree(n) static void -shtree(n, ind, pfx, fp) - union node *n; - int ind; - char *pfx; - FILE *fp; +shtree(union node *n, int ind, char *pfx, FILE *fp) { struct nodelist *lp; const char *s; @@ -11532,9 +11397,7 @@ binop: static void -shcmd(cmd, fp) - union node *cmd; - FILE *fp; +shcmd(union node *cmd, FILE *fp) { union node *np; int first; @@ -11585,10 +11448,8 @@ shcmd(cmd, fp) } static void -sharg(arg, fp) - union node *arg; - FILE *fp; - { +sharg(union node *arg, FILE *fp) +{ char *p; struct nodelist *bqlist; int subtype; @@ -11672,10 +11533,7 @@ sharg(arg, fp) static void -indent(amount, pfx, fp) - int amount; - char *pfx; - FILE *fp; +indent(int amount, char *pfx, FILE *fp) { int i; @@ -11697,8 +11555,7 @@ static int debug = 0; static void -trputc(c) - int c; +trputc(int c) { if (tracefile == NULL) return; @@ -11722,8 +11579,7 @@ trace(const char *fmt, ...) static void -trputs(s) - const char *s; +trputs(const char *s) { if (tracefile == NULL) return; @@ -11734,8 +11590,7 @@ trputs(s) static void -trstring(s) - char *s; +trstring(char *s) { char *p; char c; @@ -11775,8 +11630,7 @@ backslash: putc('\\', tracefile); static void -trargs(ap) - char **ap; +trargs(char **ap) { if (tracefile == NULL) return; @@ -11792,7 +11646,8 @@ trargs(ap) static void -opentrace() { +opentrace() +{ char s[100]; #ifdef O_APPEND int flags; @@ -11832,9 +11687,7 @@ opentrace() { */ static int -trapcmd(argc, argv) - int argc; - char **argv; +trapcmd(int argc, char **argv) { char *action; char **ap; @@ -11871,7 +11724,7 @@ trapcmd(argc, argv) if (action[0] == '-' && action[1] == '\0') action = NULL; else - action = savestr(action); + action = xstrdup(action); } if (trap[signo]) ckfree(trap[signo]); @@ -11974,8 +11827,7 @@ setsignal(int signo) */ static void -ignoresig(signo) - int signo; +ignoresig(int signo) { if (sigmode[signo - 1] != S_IGN && sigmode[signo - 1] != S_HARD_IGN) { signal(signo, SIG_IGN); @@ -12113,9 +11965,7 @@ initvar() { */ static void -setvar(name, val, flags) - const char *name, *val; - int flags; +setvar(const char *name, const char *val, int flags) { const char *p; int len; @@ -12147,7 +11997,7 @@ setvar(name, val, flags) len += vallen = strlen(val); } INTOFF; - nameeq = ckmalloc(len); + nameeq = xmalloc(len); memcpy(nameeq, name, namelen); nameeq[namelen] = '='; if (val) { @@ -12169,9 +12019,7 @@ setvar(name, val, flags) */ static void -setvareq(s, flags) - char *s; - int flags; +setvareq(char *s, int flags) { struct var *vp, **vpp; @@ -12206,7 +12054,7 @@ setvareq(s, flags) return; } /* not found */ - vp = ckmalloc(sizeof (*vp)); + vp = xmalloc(sizeof (*vp)); vp->flags = flags; vp->text = s; vp->next = *vpp; @@ -12221,14 +12069,13 @@ setvareq(s, flags) */ static void -listsetvar(mylist) - struct strlist *mylist; - { +listsetvar(struct strlist *mylist) +{ struct strlist *lp; INTOFF; for (lp = mylist ; lp ; lp = lp->next) { - setvareq(savestr(lp->text), 0); + setvareq(xstrdup(lp->text), 0); } INTON; } @@ -12240,8 +12087,7 @@ listsetvar(mylist) */ static const char * -lookupvar(name) - const char *name; +lookupvar(const char *name) { struct var *v; @@ -12322,7 +12168,7 @@ shprocvar(void) { ckfree(vp); } else { if (vp->flags & VSTACK) { - vp->text = savestr(vp->text); + vp->text = xstrdup(vp->text); vp->flags &=~ VSTACK; } prev = &vp->next; @@ -12341,9 +12187,7 @@ shprocvar(void) { */ static int -showvarscmd(argc, argv) - int argc; - char **argv; +showvarscmd(int argc, char **argv) { showvars(nullstr, VUNSET, VUNSET); return 0; @@ -12356,9 +12200,7 @@ showvarscmd(argc, argv) */ static int -exportcmd(argc, argv) - int argc; - char **argv; +exportcmd(int argc, char **argv) { struct var *vp; char *name; @@ -12395,9 +12237,7 @@ found:; /* funcnest nonzero if we are currently evaluating a function */ static int -localcmd(argc, argv) - int argc; - char **argv; +localcmd(int argc, char **argv) { char *name; @@ -12418,18 +12258,17 @@ localcmd(argc, argv) */ static void -mklocal(name) - char *name; - { +mklocal(char *name) +{ struct localvar *lvp; struct var **vpp; struct var *vp; INTOFF; - lvp = ckmalloc(sizeof (struct localvar)); + lvp = xmalloc(sizeof (struct localvar)); if (name[0] == '-' && name[1] == '\0') { char *p; - p = ckmalloc(sizeof optet_vals); + p = xmalloc(sizeof optet_vals); lvp->text = memcpy(p, optet_vals, sizeof optet_vals); vp = NULL; } else { @@ -12437,7 +12276,7 @@ mklocal(name) vp = *findvar(vpp, name); if (vp == NULL) { if (strchr(name, '=')) - setvareq(savestr(name), VSTRFIXED); + setvareq(xstrdup(name), VSTRFIXED); else setvar(name, NULL, VSTRFIXED); vp = *vpp; /* the new variable */ @@ -12448,7 +12287,7 @@ mklocal(name) lvp->flags = vp->flags; vp->flags |= VSTRFIXED|VTEXTFIXED; if (strchr(name, '=')) - setvareq(savestr(name), 0); + setvareq(xstrdup(name), 0); } } lvp->vp = vp; @@ -12487,9 +12326,7 @@ poplocalvars() { static int -setvarcmd(argc, argv) - int argc; - char **argv; +setvarcmd(int argc, char **argv) { if (argc <= 2) return unsetcmd(argc, argv); @@ -12508,9 +12345,7 @@ setvarcmd(argc, argv) */ static int -unsetcmd(argc, argv) - int argc; - char **argv; +unsetcmd(int argc, char **argv) { char **ap; int i; @@ -12646,7 +12481,7 @@ findvar(struct var **vpp, const char *name) /* * Copyright (c) 1999 Herbert Xu <herbert@debian.org> * This file contains code for the times builtin. - * $Id: ash.c,v 1.36 2001/11/12 16:57:26 kraai Exp $ + * $Id: ash.c,v 1.37 2001/12/06 03:37:38 aaronl Exp $ */ static int timescmd (int argc, char **argv) { @@ -12695,7 +12530,7 @@ int letcmd(int argc, char **argv) return 0; } snprintf(p, 12, "%ld", result); - setvar(argv[1], savestr(p), 0); + setvar(argv[1], xstrdup(p), 0); } else if (argc >= 3) synerror("invalid operand"); return !result; |