| Message ID | 1481117249-21273-23-git-send-email-jtulak@redhat.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
On Wed, Dec 07, 2016 at 02:27:29PM +0100, Jan Tulak wrote: > Because things like -l size=40M,size=50M are clearly wrong and should > not pass. However, in two cases, we do not know if the option is a > string or number - thus the few more lines with can_respec flag. > > Signed-off-by: Jan Tulak <jtulak@redhat.com> Reviewed-by: Bill O'Donnell <billodo@redhat.com> > --- > mkfs/xfs_mkfs.c | 29 +++++++++++++++++++++++++++++ > 1 file changed, 29 insertions(+) > > diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c > index cd0eb20..7fe743a 100644 > --- a/mkfs/xfs_mkfs.c > +++ b/mkfs/xfs_mkfs.c > @@ -432,6 +432,10 @@ test_uvalue_num(enum e_type a_type, union u_value a, long long b) { > * Set to true if, when user specifies the option, she has to specify > * a value too. That is, if needs_val is true, then it is not possible to > * use the subopt as a flag. > + * > + * can_respec OPTIONAL > + * If true, then there can come one getnum() after a getstr() call for this > + * option. > */ > struct opt_params { > int index; > @@ -458,6 +462,7 @@ struct opt_params { > union u_value value; > enum e_type type; > bool needs_val; > + bool can_respec; > } subopt_params[MAX_SUBOPTS]; > } opts[MAX_OPTS] = { > { > @@ -877,6 +882,7 @@ struct opt_params { > .maxval.i = 2, > .needs_val = true, > .type = INT, > + .can_respec = true, > }, > { .index = L_SUNIT, > .conflicts = { {.opt = OPT_L, > @@ -1009,6 +1015,7 @@ struct opt_params { > .maxval.i = 2, > .needs_val = true, > .type = INT, > + .can_respec = true, > }, > { .index = N_FTYPE, > .conflicts = { {.opt = OPT_M, > @@ -2017,6 +2024,22 @@ getnum( > struct subopt_param *sp = &opts->subopt_params[index]; > long long c; > > + if (sp->seen){ > + /* If the option has respec flag, it is possible to do ONE > + * getnum call even with sp->seen == 1. Do this by disabling > + * the respec flag - this time we can continue, but if getnum > + * gets called once more, we will fail. > + */ > + if (sp->can_respec){ > + sp->can_respec = false; > + } else { > + fprintf(stderr, > + _("You can't use an option multiple times: -%c %s\n"), > + opts->name, opts->subopts[index]); > + usage(); > + } > + } > + > /* empty strings might just return a default value */ > if (!str || *str == '\0') { > if (sp->needs_val) > @@ -2123,6 +2146,12 @@ getstr( > /* empty strings for string options are not valid */ > if (!str || *str == '\0') > reqval(opts->name, (char **)opts->subopts, index); > + if (opts->subopt_params[index].seen){ > + fprintf(stderr, > + _("You can't use an option multiple times: -%c %s\n"), > + opts->name, opts->subopts[index]); > + usage(); > + } > opts->subopt_params[index].seen = true; > return str; > } > -- > 2.8.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-xfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c index cd0eb20..7fe743a 100644 --- a/mkfs/xfs_mkfs.c +++ b/mkfs/xfs_mkfs.c @@ -432,6 +432,10 @@ test_uvalue_num(enum e_type a_type, union u_value a, long long b) { * Set to true if, when user specifies the option, she has to specify * a value too. That is, if needs_val is true, then it is not possible to * use the subopt as a flag. + * + * can_respec OPTIONAL + * If true, then there can come one getnum() after a getstr() call for this + * option. */ struct opt_params { int index; @@ -458,6 +462,7 @@ struct opt_params { union u_value value; enum e_type type; bool needs_val; + bool can_respec; } subopt_params[MAX_SUBOPTS]; } opts[MAX_OPTS] = { { @@ -877,6 +882,7 @@ struct opt_params { .maxval.i = 2, .needs_val = true, .type = INT, + .can_respec = true, }, { .index = L_SUNIT, .conflicts = { {.opt = OPT_L, @@ -1009,6 +1015,7 @@ struct opt_params { .maxval.i = 2, .needs_val = true, .type = INT, + .can_respec = true, }, { .index = N_FTYPE, .conflicts = { {.opt = OPT_M, @@ -2017,6 +2024,22 @@ getnum( struct subopt_param *sp = &opts->subopt_params[index]; long long c; + if (sp->seen){ + /* If the option has respec flag, it is possible to do ONE + * getnum call even with sp->seen == 1. Do this by disabling + * the respec flag - this time we can continue, but if getnum + * gets called once more, we will fail. + */ + if (sp->can_respec){ + sp->can_respec = false; + } else { + fprintf(stderr, + _("You can't use an option multiple times: -%c %s\n"), + opts->name, opts->subopts[index]); + usage(); + } + } + /* empty strings might just return a default value */ if (!str || *str == '\0') { if (sp->needs_val) @@ -2123,6 +2146,12 @@ getstr( /* empty strings for string options are not valid */ if (!str || *str == '\0') reqval(opts->name, (char **)opts->subopts, index); + if (opts->subopt_params[index].seen){ + fprintf(stderr, + _("You can't use an option multiple times: -%c %s\n"), + opts->name, opts->subopts[index]); + usage(); + } opts->subopt_params[index].seen = true; return str; }
Because things like -l size=40M,size=50M are clearly wrong and should not pass. However, in two cases, we do not know if the option is a string or number - thus the few more lines with can_respec flag. Signed-off-by: Jan Tulak <jtulak@redhat.com> --- mkfs/xfs_mkfs.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+)