style cleanup: return(a) -> return a, part 1

git-svn-id: svn://busybox.net/trunk/busybox@16690 69ca8d6d-28ef-0310-b511-8ec308f3f277

4 files changed, 99 insertions, 97 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 4fef0f2d3..704d03bec 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -2129,10 +2129,10 @@ unalias(const char *name)
                 INTOFF;
                 *app = freealias(*app);
                 INTON;
-                return (0);
+                return 0;
         }
 
-        return (1);
+        return 1;
 }
 
 static void
@@ -2181,7 +2181,7 @@ aliascmd(int argc, char **argv)
                         for (ap = atab[i]; ap; ap = ap->next) {
                                 printalias(ap);
                         }
-                return (0);
+                return 0;
         }
         while ((n = *++argv) != NULL) {
                 if ((v = strchr(n+1, '=')) == NULL) { /* n+1: funny ksh stuff */
@@ -2207,7 +2207,7 @@ unaliascmd(int argc, char **argv)
         while ((i = nextopt("a")) != '\0') {
                 if (i == 'a') {
                         rmaliases();
-                        return (0);
+                        return 0;
                 }
         }
         for (i = 0; *argptr; argptr++) {
@@ -13420,7 +13420,8 @@ static int arith_apply(operator op, v_n_t *numstack, v_n_t **numstackptr)
         /* protect geting var value, is number now */
         numptr_m1->var = NULL;
         return 0;
-err: return(-1);
+ err:
+        return -1;
 }
 
 /* longest must first */
diff --git a/shell/cmdedit.c b/shell/cmdedit.c
index dda6f6958..ceaa2e885 100644
--- a/shell/cmdedit.c
+++ b/shell/cmdedit.c
@@ -1180,7 +1180,8 @@ static int get_next_history(void)
 
         if (ch < n_history) {
                 get_previous_history(); /* save the current history line */
-                return (cur_history = ch+1);
+                cur_history = ch + 1;
+                return cur_history;
         } else {
                 beep();
                 return 0;
diff --git a/shell/hush.c b/shell/hush.c
index 2013a9d2b..57b4a7ac3 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -1225,7 +1225,7 @@ static int checkjobs(struct pipe* fg_pipe)
                                         if (i==fg_pipe->num_progs-1)
                                                 rcode=WEXITSTATUS(status);
                                         (fg_pipe->num_progs)--;
-                                        return(rcode);
+                                        return rcode;
                                 }
                         }
                 }
@@ -2768,7 +2768,7 @@ int hush_main(int argc, char **argv)
 #endif
 
 final_return:
-        return(opt?opt:last_return_code);
+        return opt ? opt : last_return_code;
 }
 
 static char *insert_var_value(char *inp)
diff --git a/shell/msh.c b/shell/msh.c
index c0f013e98..8f58e9457 100644
--- a/shell/msh.c
+++ b/shell/msh.c
@@ -1007,13 +1007,13 @@ static int newfile(char *s)
                 if (f < 0) {
                         prs(s);
                         err(": cannot open");
-                        return (1);
+                        return 1;
                 }
         } else
                 f = 0;
 
         next(remap(f));
-        return (0);
+        return 0;
 }
 
 
@@ -1162,7 +1162,7 @@ static int newenv(int f)
 
         if (f) {
                 quitenv();
-                return (1);
+                return 1;
         }
 
         ep = (struct env *) space(sizeof(*ep));
@@ -1175,7 +1175,7 @@ static int newenv(int f)
         e.oenv = ep;
         e.errpt = errpt;
 
-        return (0);
+        return 0;
 }
 
 static void quitenv(void)
@@ -1202,8 +1202,8 @@ static int anys(char *s1, char *s2)
 {
         while (*s1)
                 if (any(*s1++, s2))
-                        return (1);
-        return (0);
+                        return 1;
+        return 0;
 }
 
 /*
@@ -1213,8 +1213,8 @@ static int any(int c, char *s)
 {
         while (*s)
                 if (*s++ == c)
-                        return (1);
-        return (0);
+                        return 1;
+        return 0;
 }
 
 static char *putn(int n)
@@ -1396,12 +1396,12 @@ static int isassign(char *s)
         DBGPRINTF7(("ISASSIGN: enter, s=%s\n", s));
 
         if (!isalpha((int) *s) && *s != '_')
-                return (0);
+                return 0;
         for (; *s != '='; s++)
                 if (*s == 0 || (!isalnum(*s) && *s != '_'))
-                        return (0);
+                        return 0;
 
-        return (1);
+        return 1;
 }
 
 static int assign(char *s, int cf)
@@ -1412,15 +1412,15 @@ static int assign(char *s, int cf)
         DBGPRINTF7(("ASSIGN: enter, s=%s, cf=%d\n", s, cf));
 
         if (!isalpha(*s) && *s != '_')
-                return (0);
+                return 0;
         for (cp = s; *cp != '='; cp++)
                 if (*cp == 0 || (!isalnum(*cp) && *cp != '_'))
-                        return (0);
+                        return 0;
         vp = lookup(s);
         nameval(vp, ++cp, cf == COPYV ? (char *) NULL : s);
         if (cf != COPYV)
                 vp->status &= ~GETCELL;
-        return (1);
+        return 1;
 }
 
 static int checkname(char *cp)
@@ -1428,11 +1428,11 @@ static int checkname(char *cp)
         DBGPRINTF7(("CHECKNAME: enter, cp=%s\n", cp));
 
         if (!isalpha(*cp++) && *(cp - 1) != '_')
-                return (0);
+                return 0;
         while (*cp)
                 if (!isalnum(*cp++) && *(cp - 1) != '_')
-                        return (0);
-        return (1);
+                        return 0;
+        return 1;
 }
 
 static void putvlist(int f, int out)
@@ -1454,7 +1454,7 @@ static int eqname(char *n1, char *n2)
 {
         for (; *n1 != '=' && *n1 != 0; n1++)
                 if (*n2++ != *n1)
-                        return (0);
+                        return 0;
         return (*n2 == 0 || *n2 == '=');
 }
 
@@ -1483,31 +1483,31 @@ static int gmatch(char *s, char *p)
         int sc, pc;
 
         if (s == NULL || p == NULL)
-                return (0);
+                return 0;
         while ((pc = *p++ & CMASK) != '\0') {
                 sc = *s++ & QMASK;
                 switch (pc) {
                 case '[':
                         if ((p = cclass(p, sc)) == NULL)
-                                return (0);
+                                return 0;
                         break;
 
                 case '?':
                         if (sc == 0)
-                                return (0);
+                                return 0;
                         break;
 
                 case '*':
                         s--;
                         do {
                                 if (*p == '\0' || gmatch(s, p))
-                                        return (1);
+                                        return 1;
                         } while (*s++ != '\0');
-                        return (0);
+                        return 0;
 
                 default:
                         if (sc != (pc & ~QUOTE))
-                                return (0);
+                                return 0;
                 }
         }
         return (*s == 0);
@@ -1805,7 +1805,7 @@ static int synio(int cf)
 
         if ((c = yylex(cf)) != '<' && c != '>') {
                 peeksym = c;
-                return (0);
+                return 0;
         }
 
         i = yylval.i;
@@ -1817,7 +1817,7 @@ static int synio(int cf)
                 markhere(yylval.cp, iop);
 
         DBGPRINTF7(("SYNIO: returning 1\n"));
-        return (1);
+        return 1;
 }
 
 static void musthave(int c, int cf)
@@ -2166,7 +2166,7 @@ static int rlookup(char *n)
                 }
 
         DBGPRINTF7(("RLOOKUP: NO match, returning 0\n"));
-        return (0);                                     /* Not a shell multiline */
+        return 0;                                       /* Not a shell multiline */
 }
 
 static struct op *newtp(void)
@@ -2428,7 +2428,7 @@ static int collect(int c, int c1)
 
         DBGPRINTF8(("COLLECT: return 0, line is %s\n", line));
 
-        return (0);
+        return 0;
 }
 
 /* "multiline commands" helper func */
@@ -2510,7 +2510,7 @@ static int execute(struct op *t, int *pin, int *pout, int act)
 
         if (t == NULL) {
                 DBGPRINTF4(("EXECUTE: enter, t==null, returning.\n"));
-                return (0);
+                return 0;
         }
 
         DBGPRINTF(("EXECUTE: t=%p, t->type=%d (%s), t->words is %s\n", t,
@@ -2787,7 +2787,7 @@ forkexec(struct op *t, int *pin, int *pout, int act, char **wp)
 
                 if (newpid == -1) {
                         DBGPRINTF(("FORKEXEC: ERROR, cannot vfork()!\n"));
-                        return (-1);
+                        return -1;
                 }
 
 
@@ -2804,7 +2804,7 @@ forkexec(struct op *t, int *pin, int *pout, int act, char **wp)
 
 /* moved up
                         if (i == -1)
-                                return(rv);
+                                return rv;
 */
 
                         if (pin != NULL)
@@ -2839,7 +2839,7 @@ forkexec(struct op *t, int *pin, int *pout, int act, char **wp)
                 err("piping to/from shell builtins not yet done");
                 if (forked)
                         _exit(-1);
-                return (-1);
+                return -1;
         }
 #endif
 
@@ -2858,7 +2858,7 @@ forkexec(struct op *t, int *pin, int *pout, int act, char **wp)
                         err(": cannot redirect shell command");
                         if (forked)
                                 _exit(-1);
-                        return (-1);
+                        return -1;
                 }
                 while (*iopp)
                         if (iosetup(*iopp++, pin != NULL, pout != NULL)) {
@@ -2919,23 +2919,23 @@ static int iosetup(struct ioword *iop, int pipein, int pipeout)
                 iop->io_unit = iop->io_flag & (IOREAD | IOHERE) ? 0 : 1;
 
         if (pipein && iop->io_unit == 0)
-                return (0);
+                return 0;
 
         if (pipeout && iop->io_unit == 1)
-                return (0);
+                return 0;
 
         msg = iop->io_flag & (IOREAD | IOHERE) ? "open" : "create";
         if ((iop->io_flag & IOHERE) == 0) {
                 cp = iop->io_name;
                 if ((cp = evalstr(cp, DOSUB | DOTRIM)) == NULL)
-                        return (1);
+                        return 1;
         }
 
         if (iop->io_flag & IODUP) {
                 if (cp[1] || (!isdigit(*cp) && *cp != '-')) {
                         prs(cp);
                         err(": illegal >& argument");
-                        return (1);
+                        return 1;
                 }
                 if (*cp == '-')
                         iop->io_flag = IOCLOSE;
@@ -2967,20 +2967,20 @@ static int iosetup(struct ioword *iop, int pipein, int pipeout)
 
         case IOCLOSE:
                 close(iop->io_unit);
-                return (0);
+                return 0;
         }
         if (u < 0) {
                 prs(cp);
                 prs(": cannot ");
                 warn(msg);
-                return (1);
+                return 1;
         } else {
                 if (u != iop->io_unit) {
                         dup2(u, iop->io_unit);
                         close(u);
                 }
         }
-        return (0);
+        return 0;
 }
 
 static void echo(char **wp)
@@ -3281,7 +3281,7 @@ static int dohelp(struct op *t)
 
 static int dolabel(struct op *t)
 {
-        return (0);
+        return 0;
 }
 
 static int dochdir(struct op *t)
@@ -3293,10 +3293,10 @@ static int dochdir(struct op *t)
         else if (chdir(cp) < 0)
                 er = ": bad directory";
         else
-                return (0);
+                return 0;
         prs(cp != NULL ? cp : "cd");
         err(er);
-        return (1);
+        return 1;
 }
 
 static int doshift(struct op *t)
@@ -3306,13 +3306,13 @@ static int doshift(struct op *t)
         n = t->words[1] ? getn(t->words[1]) : 1;
         if (dolc < n) {
                 err("nothing to shift");
-                return (1);
+                return 1;
         }
         dolv[n] = dolv[0];
         dolv += n;
         dolc -= n;
         setval(lookup("#"), putn(dolc));
-        return (0);
+        return 0;
 }
 
 /*
@@ -3330,7 +3330,7 @@ static int dologin(struct op *t)
         prs(t->words[0]);
         prs(": ");
         err(cp);
-        return (1);
+        return 1;
 }
 
 static int doumask(struct op *t)
@@ -3349,7 +3349,7 @@ static int doumask(struct op *t)
                         n = n * 8 + (*cp - '0');
                 umask(n);
         }
-        return (0);
+        return 0;
 }
 
 static int doexec(struct op *t)
@@ -3361,14 +3361,14 @@ static int doexec(struct op *t)
         t->ioact = NULL;
         for (i = 0; (t->words[i] = t->words[i + 1]) != NULL; i++);
         if (i == 0)
-                return (1);
+                return 1;
         execflg = 1;
         ofail = failpt;
         if (setjmp(failpt = ex) == 0)
                 execute(t, NOPIPE, NOPIPE, FEXEC);
         failpt = ofail;
         execflg = 0;
-        return (1);
+        return 1;
 }
 
 static int dodot(struct op *t)
@@ -3382,7 +3382,7 @@ static int dodot(struct op *t)
 
         if ((cp = t->words[1]) == NULL) {
                 DBGPRINTF(("DODOT: bad args, ret 0\n"));
-                return (0);
+                return 0;
         } else {
                 DBGPRINTF(("DODOT: cp is %s\n", cp));
         }
@@ -3420,7 +3420,7 @@ static int dodot(struct op *t)
         prs(cp);
         err(": not found");
 
-        return (-1);
+        return -1;
 }
 
 static int dowait(struct op *t)
@@ -3431,11 +3431,11 @@ static int dowait(struct op *t)
         if ((cp = t->words[1]) != NULL) {
                 i = getn(cp);
                 if (i == 0)
-                        return (0);
+                        return 0;
         } else
                 i = -1;
         setstatus(waitfor(i, 1));
-        return (0);
+        return 0;
 }
 
 static int doread(struct op *t)
@@ -3446,7 +3446,7 @@ static int doread(struct op *t)
 
         if (t->words[1] == NULL) {
                 err("Usage: read name ...");
-                return (1);
+                return 1;
         }
         for (wp = t->words + 1; *wp; wp++) {
                 for (cp = e.linep; !nl && cp < elinep - 1; cp++)
@@ -3479,7 +3479,7 @@ static int dotrap(struct op *t)
                                 prs(trap[i]);
                                 prs("\n");
                         }
-                return (0);
+                return 0;
         }
         resetsig = isdigit(*t->words[1]);
         for (i = resetsig ? 1 : 2; t->words[i] != NULL; ++i) {
@@ -3502,7 +3502,7 @@ static int dotrap(struct op *t)
                                 setsig(n, SIG_DFL);
                 }
         }
-        return (0);
+        return 0;
 }
 
 static int getsig(char *s)
@@ -3571,7 +3571,7 @@ static int brkcontin(char *cp, int val)
         } while (--nl);
         if (nl) {
                 err("bad break/continue level");
-                return (1);
+                return 1;
         }
         isbreak = val;
         longjmp(bc->brkpt, 1);
@@ -3590,19 +3590,19 @@ static int doexit(struct op *t)
 
         leave();
         /* NOTREACHED */
-        return (0);
+        return 0;
 }
 
 static int doexport(struct op *t)
 {
         rdexp(t->words + 1, export, EXPORT);
-        return (0);
+        return 0;
 }
 
 static int doreadonly(struct op *t)
 {
         rdexp(t->words + 1, ronly, RONLY);
-        return (0);
+        return 0;
 }
 
 static void rdexp(char **wp, void (*f) (struct var *), int key)
@@ -3643,7 +3643,7 @@ static int doset(struct op *t)
         if ((cp = t->words[1]) == NULL) {
                 for (vp = vlist; vp; vp = vp->next)
                         varput(vp->name, 1);
-                return (0);
+                return 0;
         }
         if (*cp == '-') {
                 /* bad: t->words++; */
@@ -3674,7 +3674,7 @@ static int doset(struct op *t)
                 setval(lookup("#"), putn(dolc));
                 setarea((char *) (dolv - 1), 0);
         }
-        return (0);
+        return 0;
 }
 
 static void varput(char *s, int out)
@@ -3818,7 +3818,7 @@ static int expand(char *cp, struct wdblock **wbp, int f)
         gflg = 0;
 
         if (cp == NULL)
-                return (0);
+                return 0;
 
         if (!anys("$`'\"", cp) &&
                 !anys(ifs->value, cp) && ((f & DOGLOB) == 0 || !anys("[*?", cp))) {
@@ -3826,7 +3826,7 @@ static int expand(char *cp, struct wdblock **wbp, int f)
                 if (f & DOTRIM)
                         unquote(cp);
                 *wbp = addword(cp, *wbp);
-                return (1);
+                return 1;
         }
         if (newenv(setjmp(errpt = ev)) == 0) {
                 PUSHIO(aword, cp, strchar);
@@ -3866,7 +3866,7 @@ static char *blank(int f)
         switch (c = subgetc('"', foundequals)) {
         case 0:
                 if (sp == e.linep)
-                        return (0);
+                        return 0;
                 *e.linep++ = 0;
                 return (sp);
 
@@ -3930,7 +3930,7 @@ static int subgetc(char ec, int quoted)
         if (!INSUB() && ec != '\'') {
                 if (c == '`') {
                         if (grave(quoted) == 0)
-                                return (0);
+                                return 0;
                         e.iop->task = XGRAVE;
                         goto again;
                 }
@@ -4001,7 +4001,7 @@ static int dollar(int quoted)
                         /* should check dollar */
                         e.linep = s;
                         PUSHIO(awordlist, dolv + 1, dolchar);
-                        return (0);
+                        return 0;
                 } else {                                /* trap the nasty ${=} */
                         s[0] = '1';
                         s[1] = 0;
@@ -4042,7 +4042,7 @@ static int dollar(int quoted)
         }
         e.linep = s;
         PUSHIO(aword, dolp, quoted ? qstrchar : strchar);
-        return (0);
+        return 0;
 }
 
 /*
@@ -4072,7 +4072,7 @@ static int grave(int quoted)
         for (cp = e.iop->argp->aword; *cp != '`'; cp++)
                 if (*cp == 0) {
                         err("no closing `");
-                        return (0);
+                        return 0;
                 }
 
         /* string copy with dollar expansion */
@@ -4119,7 +4119,7 @@ static int grave(int quoted)
                                         break;
                                 default:
                                         err("unclosed ${\n");
-                                        return (0);
+                                        return 0;
                                 }
                                 if (operator) {
                                         src++;
@@ -4129,7 +4129,7 @@ static int grave(int quoted)
                                         alt_value[alt_index] = 0;
                                         if (*src != '}') {
                                                 err("unclosed ${\n");
-                                                return (0);
+                                                return 0;
                                         }
                                 }
                                 src++;
@@ -4164,7 +4164,7 @@ static int grave(int quoted)
                                                 alt_value : vp->value;
                                 else if (operator == '?') {
                                         err(alt_value);
-                                        return (0);
+                                        return 0;
                                 } else if (alt_index && (operator != '+')) {
                                         value = alt_value;
                                         if (operator == '=')
@@ -4186,7 +4186,7 @@ static int grave(int quoted)
         *dest = '\0';
 
         if (openpipe(pf) < 0)
-                return (0);
+                return 0;
 
         while ((i = vfork()) == -1 && errno == EAGAIN);
 
@@ -4195,7 +4195,7 @@ static int grave(int quoted)
         if (i < 0) {
                 closepipe(pf);
                 err((char *) bb_msg_memory_exhausted);
-                return (0);
+                return 0;
         }
         if (i != 0) {
                 waitpid(i, NULL, 0);
@@ -4204,7 +4204,7 @@ static int grave(int quoted)
                 PUSHIO(afile, remap(pf[0]),
                            (int (*)(struct ioarg *)) ((quoted) ? qgravechar :
                                                                                   gravechar));
-                return (1);
+                return 1;
         }
         /* allow trapped signals */
         /* XXX - Maybe this signal stuff should go as well? */
@@ -4379,8 +4379,8 @@ static int anyspcl(struct wdblock *wb)
         wd = wb->w_words;
         for (i = 0; i < wb->w_nword; i++)
                 if (anys(spcl, *wd++))
-                        return (1);
-        return (0);
+                        return 1;
+        return 0;
 }
 
 static int xstrcmp(char *p1, char *p2)
@@ -4634,14 +4634,14 @@ static int readc(void)
 
         if (e.iop >= iostack) {
                 RCPRINTF(("READC: return 0, e.iop %p\n", e.iop));
-                return (0);
+                return 0;
         }
 
         DBGPRINTF(("READC: leave()...\n"));
         leave();
 
         /* NOTREACHED */
-        return (0);
+        return 0;
 }
 
 static void ioecho(char c)
@@ -4737,7 +4737,7 @@ static int nlchar(struct ioarg *ap)
         int c;
 
         if (ap->aword == NULL)
-                return (0);
+                return 0;
         if ((c = *ap->aword++) == 0) {
                 ap->aword = NULL;
                 return ('\n');
@@ -4755,7 +4755,7 @@ static int wdchar(struct ioarg *ap)
         char **wl;
 
         if ((wl = ap->awordlist) == NULL)
-                return (0);
+                return 0;
         if (*wl != NULL) {
                 if ((c = *(*wl)++) != 0)
                         return (c & 0177);
@@ -4776,9 +4776,9 @@ static int dolchar(struct ioarg *ap)
 
         if ((wp = *ap->awordlist++) != NULL) {
                 PUSHIO(aword, wp, *ap->awordlist == NULL ? strchar : xxchar);
-                return (-1);
+                return -1;
         }
-        return (0);
+        return 0;
 }
 
 static int xxchar(struct ioarg *ap)
@@ -4786,7 +4786,7 @@ static int xxchar(struct ioarg *ap)
         int c;
 
         if (ap->aword == NULL)
-                return (0);
+                return 0;
         if ((c = *ap->aword++) == '\0') {
                 ap->aword = NULL;
                 return (' ');
@@ -4802,7 +4802,7 @@ static int strchar(struct ioarg *ap)
         int c;
 
         if (ap->aword == NULL || (c = *ap->aword++) == 0)
-                return (0);
+                return 0;
         return (c);
 }
 
@@ -4814,7 +4814,7 @@ static int qstrchar(struct ioarg *ap)
         int c;
 
         if (ap->aword == NULL || (c = *ap->aword++) == 0)
-                return (0);
+                return 0;
         return (c | QUOTE);
 }
 
@@ -5143,13 +5143,13 @@ static int herein(char *hname, int xdoll)
         (void) &tf;
 #endif
         if (hname == NULL)
-                return (-1);
+                return -1;
 
         DBGPRINTF7(("HEREIN: hname is %s, xdoll=%d\n", hname, xdoll));
 
         hf = open(hname, 0);
         if (hf < 0)
-                return (-1);
+                return -1;
 
         if (xdoll) {
                 char c;
@@ -5158,7 +5158,7 @@ static int herein(char *hname, int xdoll)
 
                 tf = mkstemp(tname);
                 if (tf < 0)
-                        return (-1);
+                        return -1;
                 if (newenv(setjmp(errpt = ev)) == 0) {
                         PUSHIO(afile, hf, herechar);
                         setbase(e.iop);