Re: [PATCH 03/12] Add error checking to vcard_emul_options

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Hi

----- Original Message -----
> On Thu, Oct 08, 2015 at 05:40:32PM +0200, marcandre.lureau@xxxxxxxxxx wrote:
> > From: Jeremy White <jwhite@xxxxxxxxxxxxxxx>
> > 
> > Also add an alias of 'nssemul' for the default card
> > of hw=yes hw_type=cac, and an alias of 'passthru' for
> > the new card type of hw=yes hw_type=passthru.
> 
> The 'passthru' alias is added in the next patch, not in this one.
> 

except this commit comment, does it get your ack?


thanks

> 
> 
> > 
> > This allows the spice-gtk client to take a more human
> > friendly set of arguments and relay them through to this code.
> > 
> > Signed-off-by: Jeremy White <jwhite@xxxxxxxxxxxxxxx>
> > Reviewed-by: Marc-André Lureau <marcandre.lureau@xxxxxxxxxx>
> > ---
> >  src/vcard_emul_nss.c | 39 ++++++++++++++++++++++++++++-----------
> >  1 file changed, 28 insertions(+), 11 deletions(-)
> > 
> > diff --git a/src/vcard_emul_nss.c b/src/vcard_emul_nss.c
> > index 2f95f03..7ffa0b4 100644
> > --- a/src/vcard_emul_nss.c
> > +++ b/src/vcard_emul_nss.c
> > @@ -1116,17 +1116,13 @@ static VCardEmulOptions options;
> >   * and its length in "token_length". "token" will not be nul-terminated.
> >   * After calling the macro, "args" will be advanced to the beginning of
> >   * the next token.
> > - * This macro may call continue or break.
> >   */
> >  #define NEXT_TOKEN(token) \
> >              (token) = args; \
> >              args = strpbrk(args, ",)"); \
> > -            if (*args == 0) { \
> > -                break; \
> > -            } \
> > -            if (*args == ')') { \
> > -                args++; \
> > -                continue; \
> > +            if (*args == 0 || *args == ')') { \
> > +                fprintf(stderr, "Error: invalid soft specification.\n"); \
> > +                return NULL; \
> >              } \
> >              (token##_length) = args - (token); \
> >              args = strip(args+1);
> > @@ -1144,6 +1140,7 @@ vcard_emul_options(const char *args)
> >      do {
> >          args = strip(args); /* strip off the leading spaces */
> >          if (*args == ',') {
> > +            args++;
> >              continue;
> >          }
> >          /* soft=(slot_name,virt_name,emul_type,emul_flags,cert_1, (no eol)
> > @@ -1162,7 +1159,8 @@ vcard_emul_options(const char *args)
> >  
> >              args = strip(args + 5);
> >              if (*args != '(') {
> > -                continue;
> > +                fprintf(stderr, "Error: invalid soft specification.\n");
> > +                return NULL;
> >              }
> >              args = strip(args+1);
> >  
> > @@ -1173,11 +1171,17 @@ vcard_emul_options(const char *args)
> >              memcpy(type_str, type_params, type_params_length);
> >              type_str[type_params_length] = '\0';
> >              type = vcard_emul_type_from_string(type_str);
> > +            if (type == VCARD_EMUL_NONE) {
> > +                fprintf(stderr, "Error: invalid smartcard type '%s'.\n",
> > +                        type_str);
> > +                return NULL;
> > +            }
> >  
> >              NEXT_TOKEN(type_params)
> >  
> >              if (*args == 0) {
> > -                break;
> > +                fprintf(stderr, "Error: missing cert specification.\n");
> > +                return NULL;
> >              }
> >  
> >              if (opts->vreader_count >= reader_count) {
> > @@ -1217,6 +1221,11 @@ vcard_emul_options(const char *args)
> >          } else if (strncmp(args, "hw_type=", 8) == 0) {
> >              args = strip(args+8);
> >              opts->hw_card_type = vcard_emul_type_from_string(args);
> > +            if (opts->hw_card_type == VCARD_EMUL_NONE) {
> > +                fprintf(stderr, "Error: invalid smartcard type '%s'.\n",
> > +                        args);
> > +                return NULL;
> > +            }
> >              args = find_blank(args);
> >          /* hw_params= */
> >          } else if (strncmp(args, "hw_params=", 10) == 0) {
> > @@ -1230,7 +1239,8 @@ vcard_emul_options(const char *args)
> >              const char *db;
> >              args = strip(args+3);
> >              if (*args != '"') {
> > -                continue;
> > +                fprintf(stderr, "Error: you must quote the file path.\n");
> > +                return NULL;
> >              }
> >              args++;
> >              db = args;
> > @@ -1239,8 +1249,14 @@ vcard_emul_options(const char *args)
> >              if (*args != 0) {
> >                  args++;
> >              }
> > +        } else if (strncmp(args, "nssemul", 7) == 0) {
> > +            opts->hw_card_type = VCARD_EMUL_CAC;
> > +            opts->use_hw = PR_TRUE;
> > +            args = find_blank(args + 7);
> > +        /* nssemul */
> >          } else {
> > -            args = find_blank(args);
> > +            fprintf(stderr, "Error: Unknown smartcard specification.\n");
> > +            return NULL;
> >          }
> >      } while (*args != 0);
> >  
> > @@ -1256,6 +1272,7 @@ vcard_emul_usage(void)
> >  " use_hw=[yes|no]                 (default yes)\n"
> >  " hw_type={card_type_to_emulate}  (default CAC)\n"
> >  " hw_param={param_for_card}       (default \"\")\n"
> > +" nssemul                         (alias for use_hw=yes, hw_type=CAC)\n"
> >  "
> >  soft=({slot_name},{vreader_name},{card_type_to_emulate},{params_for_card},\n"
> >  "       {cert1},{cert2},{cert3}    (default none)\n"
> >  "\n"
> > --
> > 2.4.3
> > 
> > _______________________________________________
> > Spice-devel mailing list
> > Spice-devel@xxxxxxxxxxxxxxxxxxxxx
> > http://lists.freedesktop.org/mailman/listinfo/spice-devel
> 
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