The --verifylvl option allows the user to change pacman's signature
verification level. It can take in one of "always", "optional", "never", or
their capitalized counterparts.

Signed-off-by: Pang Yan Han <pangyan...@gmail.com>
---
 doc/pacman.8.txt    |    7 +++++++
 src/pacman/conf.c   |    9 +++++++++
 src/pacman/conf.h   |    4 +++-
 src/pacman/pacman.c |    6 ++++++
 4 files changed, 25 insertions(+), 1 deletions(-)

diff --git a/doc/pacman.8.txt b/doc/pacman.8.txt
index 531c992..96f4c12 100644
--- a/doc/pacman.8.txt
+++ b/doc/pacman.8.txt
@@ -165,6 +165,13 @@ Options
        Bypass any and all ``Are you sure?'' messages. It's not a good idea to 
do
        this unless you want to run pacman from a script.
 
+*\--verifylvl* <level>::
+       Sets pacman's signature verification level to <level>. Valid values for 
level
+       are "always", "optional", "never" and their capitalized counterparts. 
This
+       can be used to override the "VerifySig" option in 
linkman:pacman.conf[5].
+       If an invalid level is given, pacman will fallback to using the level 
given
+       in the "VerifySig" option in linkman:pacman.conf[5].
+
 Transaction Options (apply to '-S', '-R' and '-U')
 --------------------------------------------------
 *-d, \--nodeps*::
diff --git a/src/pacman/conf.c b/src/pacman/conf.c
index 13707d0..cf507d9 100644
--- a/src/pacman/conf.c
+++ b/src/pacman/conf.c
@@ -74,6 +74,7 @@ int config_free(config_t *oldconfig)
        free(oldconfig->dbpath);
        free(oldconfig->logfile);
        free(oldconfig->gpgdir);
+       free(oldconfig->verifylvl);
        FREELIST(oldconfig->cachedirs);
        free(oldconfig->xfercommand);
        free(oldconfig->print_format);
@@ -481,6 +482,14 @@ static int setup_libalpm(void)
                alpm_option_set_cachedirs(handle, config->cachedirs);
        }
 
+       /* Override signature verification level from command line */
+       if(config->verifylvl) {
+               pgp_verify_t verifylvl = option_verifysig(config->verifylvl);
+               if(verifylvl != PM_PGP_VERIFY_UNKNOWN) {
+                       config->sigverify = verifylvl;
+               }
+       }
+
        if(config->sigverify != PM_PGP_VERIFY_UNKNOWN) {
                alpm_option_set_default_sigverify(handle, config->sigverify);
        }
diff --git a/src/pacman/conf.h b/src/pacman/conf.h
index 4c44bfd..7d98729 100644
--- a/src/pacman/conf.h
+++ b/src/pacman/conf.h
@@ -45,6 +45,7 @@ typedef struct __config_t {
        char *dbpath;
        char *logfile;
        char *gpgdir;
+       char *verifylvl;
        alpm_list_t *cachedirs;
 
        unsigned short op_q_isfile;
@@ -123,7 +124,8 @@ enum {
        OP_ASEXPLICIT,
        OP_ARCH,
        OP_PRINTFORMAT,
-       OP_GPGDIR
+       OP_GPGDIR,
+       OP_VERIFYLVL
 };
 
 /* clean method */
diff --git a/src/pacman/pacman.c b/src/pacman/pacman.c
index afc79f6..0c200db 100644
--- a/src/pacman/pacman.c
+++ b/src/pacman/pacman.c
@@ -205,6 +205,8 @@ static void usage(int op, const char * const myname)
                addlist(_("      --gpgdir <path>  set an alternate home 
directory for GnuPG\n"));
                addlist(_("      --logfile <path> set an alternate log 
file\n"));
                addlist(_("      --noconfirm      do not ask for any 
confirmation\n"));
+               addlist(_("      --verifylvl <lvl>\n"
+                         "                       set an alternate signature 
verification level\n"));
        }
        list = alpm_list_msort(list, alpm_list_count(list), options_cmp);
        for (i = list; i; i = alpm_list_next(i)) {
@@ -431,6 +433,9 @@ static int parsearg_global(int opt)
                        config->logfile = strndup(optarg, PATH_MAX);
                        break;
                case OP_NOCONFIRM: config->noconfirm = 1; break;
+               case OP_VERIFYLVL:
+                       config->verifylvl = strdup(optarg);
+                       break;
                case 'b':
                        check_optarg();
                        config->dbpath = strdup(optarg);
@@ -628,6 +633,7 @@ static int parseargs(int argc, char *argv[])
                {"arch",       required_argument, 0, OP_ARCH},
                {"print-format", required_argument, 0, OP_PRINTFORMAT},
                {"gpgdir",     required_argument, 0, OP_GPGDIR},
+               {"verifylvl",  required_argument, 0, OP_VERIFYLVL},
                {0, 0, 0, 0}
        };
 
-- 
1.7.6.rc0


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