diff options
author | "Vladimir N. Oleynik" <dzo@simtreas.ru> | 2005-09-05 17:25:11 +0400 |
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committer | "Vladimir N. Oleynik" <dzo@simtreas.ru> | 2005-09-05 17:25:11 +0400 |
commit | bef14d7a878049a01f1fb9b412611a2d64c2b154 (patch) | |
tree | 064bf486a768a14ca0f9d583e1e6d0608c9c8b32 /shell | |
parent | 10a1fe6169cc0c1868715f5baf752b818cdfdc1c (diff) |
1) sync with dash_0.5.2-7
2) but expand PS# as config option
3) correct kill error message again
4) remove show "line number" for interactive run (patch pending for dash)
Diffstat (limited to 'shell')
-rw-r--r-- | shell/Config.in | 9 | ||||
-rw-r--r-- | shell/ash.c | 153 |
2 files changed, 103 insertions, 59 deletions
diff --git a/shell/Config.in b/shell/Config.in index 813044e2c..f9fb8488f 100644 --- a/shell/Config.in +++ b/shell/Config.in @@ -143,6 +143,15 @@ config CONFIG_ASH_RANDOM_SUPPORT After "unset RANDOM" then generator will switch off and this variable will no longer have special treatment. +config CONFIG_ASH_EXPAND_PRMT + bool " Support expand PS#" + default n + depends on CONFIG_ASH + help + "PS#" may be have commands. It option enable expand string + from prompt before each show. + + config CONFIG_HUSH bool "hush" default n diff --git a/shell/ash.c b/shell/ash.c index 5f859a1fb..5f6f7c6d3 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -276,16 +276,6 @@ static void forceinton(void) }) #endif /* CONFIG_ASH_OPTIMIZE_FOR_SIZE */ -/* - * BSD setjmp saves the signal mask, which violates ANSI C and takes time, - * so we use _setjmp instead. - */ - -#if defined(BSD) && !defined(__SVR4) && !defined(__GLIBC__) -#define setjmp(jmploc) _setjmp(jmploc) -#define longjmp(jmploc, val) _longjmp(jmploc, val) -#endif - /* $NetBSD: expand.h,v 1.13 2002/11/24 22:35:40 christos Exp $ */ struct strlist { @@ -1700,9 +1690,11 @@ init(void) { char **envp; char ppid[32]; + const char *p; + struct stat st1, st2; initvar(); - for (envp = environ ; *envp ; envp++) { + for (envp = environ ; envp && *envp ; envp++) { if (strchr(*envp, '=')) { setvareq(*envp, VEXPORT|VTEXTFIXED); } @@ -1710,7 +1702,13 @@ init(void) snprintf(ppid, sizeof(ppid), "%d", (int) getppid()); setvar("PPID", ppid, 0); - setpwd(0, 0); + + p = lookupvar("PWD"); + if (p) + if (*p != '/' || stat(p, &st1) || stat(".", &st2) || + st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino) + p = 0; + setpwd(p, 0); } } @@ -2300,9 +2298,7 @@ cdcmd(int argc, char **argv) dest = bltinlookup(homestr); else if (dest[0] == '-' && dest[1] == '\0') { dest = bltinlookup("OLDPWD"); - if ( !dest ) goto out; flags |= CD_PRINT; - goto step7; } if (!dest) dest = nullstr; @@ -2563,20 +2559,17 @@ onint(void) { static void exvwarning(const char *msg, va_list ap) { - FILE *errs; - const char *name; - const char *fmt; + FILE *errs; - errs = stderr; - name = arg0; - fmt = "%s: "; - if (commandname) { - name = commandname; - fmt = "%s: %d: "; - } - fprintf(errs, fmt, name, startlinno); - vfprintf(errs, msg, ap); - outcslow('\n', errs); + errs = stderr; + fprintf(errs, "%s: ", arg0); + if (commandname) { + const char *fmt = (!iflag || parsefile->fd) ? + "%s: %d: " : "%s: "; + fprintf(errs, fmt, commandname, startlinno); + } + vfprintf(errs, msg, ap); + outcslow('\n', errs); } /* @@ -3201,6 +3194,12 @@ isassignment(const char *p) return *q == '='; } +#ifdef CONFIG_ASH_EXPAND_PRMT +static const char *expandstr(const char *ps); +#else +#define expandstr(s) s +#endif + /* * Execute a simple command. */ @@ -3249,7 +3248,7 @@ evalcommand(union node *cmd, int flags) struct strlist **spp; spp = arglist.lastp; - if (pseudovarflag && isassignment(argp->narg.text)) + if (pseudovarflag && isassignment(argp->narg.text)) expandarg(argp, &arglist, EXP_VARTILDE); else expandarg(argp, &arglist, EXP_FULL | EXP_TILDE); @@ -3296,7 +3295,7 @@ evalcommand(union node *cmd, int flags) const char *p = " %s"; p++; - dprintf(preverrout_fd, p, ps4val()); + dprintf(preverrout_fd, p, expandstr(ps4val())); sp = varlist.list; for(n = 0; n < 2; n++) { @@ -4595,11 +4594,12 @@ expandarg(union node *arg, struct arglist *arglist, int flag) ifsfirst.next = NULL; ifslastp = NULL; argstr(arg->narg.text, flag); + p = _STPUTC('\0', expdest); + expdest = p - 1; if (arglist == NULL) { return; /* here document expanded */ } - STPUTC('\0', expdest); - p = grabstackstr(expdest); + p = grabstackstr(p); exparg.lastp = &exparg.list; /* * TODO - EXP_REDIR @@ -5355,9 +5355,12 @@ param: size_t partlen; partlen = strlen(p); - len += partlen; - if (len > partlen && sep) { + + if (!(subtype == VSPLUS || subtype == VSLENGTH)) + memtodest(p, partlen, syntax, quotes); + + if (*ap && sep) { char *q; len++; @@ -5370,9 +5373,6 @@ param: STPUTC(sep, q); expdest = q; } - - if (!(subtype == VSPLUS || subtype == VSLENGTH)) - memtodest(p, partlen, syntax, quotes); } return len; case '0': @@ -6603,10 +6603,12 @@ usage: if (**argv == '%') { jp = getjob(*argv, 0); pid = -jp->ps[0].pid; - } else - pid = number(*argv); + } else { + pid = **argv == '-' ? + -number(*argv + 1) : number(*argv); + } if (kill(pid, signo) != 0) { - sh_warnx("kill %d: %s", pid, errmsg(errno, NULL)); + sh_warnx("(%d) - %m", pid); i = 1; } } while (*++argv); @@ -7621,11 +7623,10 @@ cmdputs(const char *s) char *nextc; int subtype = 0; int quoted = 0; - static const char *const vstype[16] = { - nullstr, "}", "-", "+", "?", "=", - "%", "%%", "#", "##", nullstr + static const char vstype[VSTYPE + 1][4] = { + "", "}", "-", "+", "?", "=", + "%", "%%", "#", "##" }; - nextc = makestrspace((strlen(s) + 1) * 8, cmdnextc); p = s; while ((c = *p++) != 0) { @@ -7647,14 +7648,10 @@ cmdputs(const char *s) goto dostr; break; case CTLENDVAR: + str = "\"}" + !(quoted & 1); quoted >>= 1; subtype = 0; - if (quoted & 1) { - str = "\"}"; - goto dostr; - } - c = '}'; - break; + goto dostr; case CTLBACKQ: str = "$(...)"; goto dostr; @@ -7676,13 +7673,13 @@ cmdputs(const char *s) case '=': if (subtype == 0) break; + if ((subtype & VSTYPE) != VSNORMAL) + quoted <<= 1; str = vstype[subtype & VSTYPE]; if (subtype & VSNUL) c = ':'; else - c = *str++; - if (c != '}') - quoted <<= 1; + goto checkstr; break; case '\'': case '\\': @@ -7697,6 +7694,7 @@ cmdputs(const char *s) break; } USTPUTC(c, nextc); +checkstr: if (!str) continue; dostr: @@ -8138,7 +8136,7 @@ static int dotcmd(int argc, char **argv) for (sp = cmdenviron; sp; sp = sp->next) setvareq(bb_xstrdup(sp->text), VSTRFIXED | VTEXTFIXED); - if (argc >= 2) { /* That's what SVR2 does */ + if (argc >= 2) { /* That's what SVR2 does */ char *fullname; struct stackmark smark; @@ -9892,7 +9890,6 @@ parseheredoc(void) while (here) { if (needprompt) { setprompt(2); - needprompt = 0; } readtoken1(pgetc(), here->here->type == NHERE? SQSYNTAX : DQSYNTAX, here->eofmark, here->striptabs); @@ -10025,7 +10022,6 @@ static int xxreadtoken() } if (needprompt) { setprompt(2); - needprompt = 0; } startlinno = plinno; for (;;) { /* until token or start of word found */ @@ -10093,7 +10089,6 @@ xxreadtoken(void) } if (needprompt) { setprompt(2); - needprompt = 0; } startlinno = plinno; for (;;) { /* until token or start of word found */ @@ -10649,7 +10644,6 @@ parsebackq: { for (;;) { if (needprompt) { setprompt(2); - needprompt = 0; } switch (pc = pgetc()) { case '`': @@ -10859,9 +10853,35 @@ synerror(const char *msg) * should be added here. */ +#ifdef CONFIG_ASH_EXPAND_PRMT +static const char * +expandstr(const char *ps) +{ + union node n; + + /* XXX Fix (char *) cast. */ + setinputstring((char *)ps); + readtoken1(pgetc(), DQSYNTAX, nullstr, 0); + popfile(); + + n.narg.type = NARG; + n.narg.next = NULL; + n.narg.text = wordtext; + n.narg.backquote = backquotelist; + + expandarg(&n, NULL, 0); + return stackblock(); +} +#endif + static void setprompt(int whichprompt) { const char *prompt; +#ifdef CONFIG_ASH_EXPAND_PRMT + struct stackmark smark; +#endif + + needprompt = 0; switch (whichprompt) { case 1: @@ -10873,7 +10893,14 @@ static void setprompt(int whichprompt) default: /* 0 */ prompt = nullstr; } - putprompt(prompt); +#ifdef CONFIG_ASH_EXPAND_PRMT + setstackmark(&smark); + stalloc(stackblocksize()); +#endif + putprompt(expandstr(prompt)); +#ifdef CONFIG_ASH_EXPAND_PRMT + popstackmark(&smark); +#endif } @@ -13341,7 +13368,11 @@ arith_apply(operator op, v_n_t *numstack, v_n_t **numstackptr) goto err; } /* save to shell variable */ - snprintf(buf, sizeof(buf), "%lld", (long long) rez); +#ifdef CONFIG_ASH_MATH_SUPPORT_64 + snprintf(buf, sizeof(buf), "%lld", rez); +#else + snprintf(buf, sizeof(buf), "%ld", rez); +#endif setvar(numptr_m1->var, buf, 0); /* after saving, make previous value for v++ or v-- */ if(op == TOK_POST_INC) @@ -13479,7 +13510,11 @@ static arith_t arith (const char *expr, int *perrcode) continue; } else if (is_digit(arithval)) { numstackptr->var = NULL; +#ifdef CONFIG_ASH_MATH_SUPPORT_64 numstackptr->val = strtoll(expr, (char **) &expr, 0); +#else + numstackptr->val = strtol(expr, (char **) &expr, 0); +#endif goto num; } for(p = op_tokens; ; p++) { |