diff options
| -rw-r--r-- | shell/msh.c | 126 |
1 files changed, 58 insertions, 68 deletions
diff --git a/shell/msh.c b/shell/msh.c index 50ec90b..3a5c850 100644 --- a/shell/msh.c +++ b/shell/msh.c @@ -13,8 +13,8 @@ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ -# include <sys/times.h> -# include <setjmp.h> +#include <sys/times.h> +#include <setjmp.h> #ifdef STANDALONE # ifndef _GNU_SOURCE @@ -291,15 +291,10 @@ static char flags['z' - 'a' + 1]; /* this looks weird, but is OK ... we index flag with 'a'...'z' */ static char *flag = flags - 'a'; -static char *null; /* null value for variable */ -static int intr; /* interrupt pending */ - /* moved to G: static char *trap[_NSIG + 1]; */ /* moved to G: static char ourtrap[_NSIG + 1]; */ static int trapset; /* trap pending */ -static int heedint; /* heed interrupt signals */ - static int yynerrs; /* yacc */ /* moved to G: static char line[LINELIM]; */ @@ -615,55 +610,54 @@ struct res { int r_val; }; static const struct res restab[] = { - {"for", FOR}, - {"case", CASE}, - {"esac", ESAC}, - {"while", WHILE}, - {"do", DO}, - {"done", DONE}, - {"if", IF}, - {"in", IN}, - {"then", THEN}, - {"else", ELSE}, - {"elif", ELIF}, - {"until", UNTIL}, - {"fi", FI}, - {";;", BREAK}, - {"||", LOGOR}, - {"&&", LOGAND}, - {"{", '{'}, - {"}", '}'}, - {".", DOT}, - {0, 0}, + { "for" , FOR }, + { "case" , CASE }, + { "esac" , ESAC }, + { "while", WHILE }, + { "do" , DO }, + { "done" , DONE }, + { "if" , IF }, + { "in" , IN }, + { "then" , THEN }, + { "else" , ELSE }, + { "elif" , ELIF }, + { "until", UNTIL }, + { "fi" , FI }, + { ";;" , BREAK }, + { "||" , LOGOR }, + { "&&" , LOGAND }, + { "{" , '{' }, + { "}" , '}' }, + { "." , DOT }, + { NULL , 0 }, }; - struct builtincmd { const char *name; - int (*builtinfunc) (struct op * t); + int (*builtinfunc)(struct op *t); }; static const struct builtincmd builtincmds[] = { - {".", dodot}, - {":", dolabel}, - {"break", dobreak}, - {"cd", dochdir}, - {"continue", docontinue}, - {"eval", doeval}, - {"exec", doexec}, - {"exit", doexit}, - {"export", doexport}, - {"help", dohelp}, - {"login", dologin}, - {"newgrp", dologin}, - {"read", doread}, - {"readonly", doreadonly}, - {"set", doset}, - {"shift", doshift}, - {"times", dotimes}, - {"trap", dotrap}, - {"umask", doumask}, - {"wait", dowait}, - {0, 0} + { "." , dodot }, + { ":" , dolabel }, + { "break" , dobreak }, + { "cd" , dochdir }, + { "continue", docontinue }, + { "eval" , doeval }, + { "exec" , doexec }, + { "exit" , doexit }, + { "export" , doexport }, + { "help" , dohelp }, + { "login" , dologin }, + { "newgrp" , dologin }, + { "read" , doread }, + { "readonly", doreadonly }, + { "set" , doset }, + { "shift" , doshift }, + { "times" , dotimes }, + { "trap" , dotrap }, + { "umask" , doumask }, + { "wait" , dowait }, + { NULL , NULL }, }; static struct op *scantree(struct op *); @@ -697,11 +691,11 @@ static struct var *path; /* search path for commands */ static struct var *shell; /* shell to interpret command files */ static struct var *ifs; /* field separators */ -static int areanum; /* current allocation area */ -static int intr; +static int areanum; /* current allocation area */ +static int intr; /* interrupt pending */ static int inparse; -static char *null = (char*)""; -static int heedint = 1; +static char *null = (char*)""; /* null value for variable */ +static int heedint = 1; /* heed interrupt signals */ static void (*qflag) (int) = SIG_IGN; static int startl; static int peeksym; @@ -2693,7 +2687,7 @@ typedef int (*builtin_func_ptr)(struct op *); static builtin_func_ptr inbuilt(const char *s) { const struct builtincmd *bp; - for (bp = builtincmds; bp->name != NULL; bp++) + for (bp = builtincmds; bp->name; bp++) if (strcmp(bp->name, s) == 0) return bp->builtinfunc; @@ -3191,29 +3185,27 @@ static int dohelp(struct op *t) puts("\nBuilt-in commands:\n" "-------------------"); - for (col = 0, x = builtincmds; x->builtinfunc != NULL; x++) { - if (!x->name) - continue; - col += printf("%s%s", ((col == 0) ? "\t" : " "), x->name); + col = 0; + x = builtincmds; + while (x->name) { + col += printf("%c%s", ((col == 0) ? '\t' : ' '), x->name); if (col > 60) { puts(""); col = 0; } + x++; } #if ENABLE_FEATURE_SH_STANDALONE_SHELL { - int i; - const struct BB_applet *applet; + const struct BB_applet *applet = applets; - for (i = 0, applet = applets; i < NUM_APPLETS; applet++, i++) { - if (!applet->name) - continue; - - col += printf("%s%s", ((col == 0) ? "\t" : " "), applet->name); + while (applet->name) { + col += printf("%c%s", ((col == 0) ? '\t' : ' '), applet->name); if (col > 60) { puts(""); col = 0; } + applet++; } } #endif @@ -3221,8 +3213,6 @@ static int dohelp(struct op *t) return EXIT_SUCCESS; } - - static int dolabel(struct op *t) { return 0; |