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ash: make ash -c 'if set -o barfoo 2>/dev/null; then echo foo; else echo bar; fi' work

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(fixes bug 1142)

function                                             old     new   delta
options                                              551     565     +14
ash_main                                            1397    1411     +14
setcmd                                                77      90     +13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 41/0)               Total: 41 bytes
This commit is contained in:
Denis Vlasenko 2008-02-14 15:01:47 +00:00
parent f1d93ec420
commit 28bf671d6d
1 changed files with 25 additions and 11 deletions
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36
shell/ash.c
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@ -9076,7 +9076,7 @@ setparam(char **argv)
* Process shell options. The global variable argptr contains a pointer
* to the argument list; we advance it past the options.
*/
static void
static int
minus_o(char *name, int val)
{
int i;
@ -9085,15 +9085,17 @@ minus_o(char *name, int val)
for (i = 0; i < NOPTS; i++) {
if (strcmp(name, optnames(i)) == 0) {
optlist[i] = val;
return;
return 0;
}
}
ash_msg_and_raise_error("illegal option -o %s", name);
ash_msg("illegal option -o %s", name);
return 1;
}
out1str("Current option settings\n");
for (i = 0; i < NOPTS; i++)
out1fmt("%-16s%s\n", optnames(i),
optlist[i] ? "on" : "off");
return 0;
}
static void
setoption(int flag, int val)
@ -9109,7 +9111,7 @@ setoption(int flag, int val)
ash_msg_and_raise_error("illegal option -%c", flag);
/* NOTREACHED */
}
static void
static int
options(int cmdline)
{
char *p;
@ -9144,7 +9146,10 @@ options(int cmdline)
if (c == 'c' && cmdline) {
minusc = p; /* command is after shell args */
} else if (c == 'o') {
minus_o(*argptr, val);
if (minus_o(*argptr, val)) {
/* it already printed err message */
return 1; /* error */
}
if (*argptr)
argptr++;
} else if (cmdline && (c == 'l')) { /* -l or +l == --login */
@ -9159,6 +9164,7 @@ options(int cmdline)
}
}
}
return 0;
}
/*
@ -9228,16 +9234,21 @@ showvars(const char *sep_prefix, int on, int off)
static int
setcmd(int argc, char **argv)
{
int retval;
if (argc == 1)
return showvars(nullstr, 0, VUNSET);
INT_OFF;
options(0);
optschanged();
if (*argptr != NULL) {
setparam(argptr);
retval = 1;
if (!options(0)) { /* if no parse error... */
retval = 0;
optschanged();
if (*argptr != NULL) {
setparam(argptr);
}
}
INT_ON;
return 0;
return retval;
}
#if ENABLE_ASH_RANDOM_SUPPORT
@ -12790,7 +12801,10 @@ procargs(int argc, char **argv)
for (i = 0; i < NOPTS; i++)
optlist[i] = 2;
argptr = xargv;
options(1);
if (options(1)) {
/* it already printed err message */
raise_exception(EXERROR);
}
xargv = argptr;
xminusc = minusc;
if (*xargv == NULL) {