NAME

       seccomp_syscall_resolve_name - Resolve a syscall name

SYNOPSIS

       #include <seccomp.h>

       int seccomp_syscall_resolve_name(const char *name);
       int seccomp_syscall_resolve_name_arch(uint32_t arch_token,
                                             const char *name);
       char *seccomp_syscall_resolve_num_arch(uint32_t arch_token, int num);

       Link with -lseccomp.

DESCRIPTION

       The seccomp_syscall_resolve_name() and seccomp_syscall_resolve_name_arch() functions resolve the commonly
       used syscall name to the syscall number used by the kernel and the  rest  of  the  libseccomp  API.   The
       seccomp_syscall_resolve_num_arch()  function  resolves  the  syscall  number  used  by  the kernel to the
       commonly used syscall name.

       The caller is responsible for freeing the returned string from seccomp_syscall_resolve_num_arch().

RETURN VALUE

       In the case of  seccomp_syscall_resolve_name()  and  seccomp_syscall_resolve_name_arch()  the  associated
       syscall  number  is  returned,  with the negative pseudo syscall number being returned in cases where the
       given syscall does not exist for the architeture.  The value  __NR_SCMP_ERROR  is  returned  in  case  of
       error.   In all cases, the return value is suitable for use in any libseccomp API function which requires
       the syscall number, examples include seccomp_rule_add() and seccomp_rule_add_exact().

       In the case of seccomp_syscall_resolve_num_arch() the associated syscall name is returned and it  remains
       the callers responsibility to free the returned string via free(3).

EXAMPLES

       #include <seccomp.h>

       int main(int argc, char *argv[])
       {
            int rc = -1;
            scmp_filter_ctx ctx;

            ctx = seccomp_init(SCMP_ACT_KILL);
            if (ctx == NULL)
                 goto out;

            /* ... */

            rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW,
                                  seccomp_syscall_resolve_name("open"), 0);
            if (rc < 0)
                 goto out;

            /* ... */

            rc = seccomp_load(ctx);
            if (rc < 0)
                 goto out;

            /* ... */

       out:
            seccomp_release(ctx);
            return -rc;
       }

NOTES

       While  the  seccomp filter can be generated independent of the kernel, kernel support is required to load
       and enforce the seccomp filter generated by libseccomp.

       The libseccomp project site, with more information and the  source  code  repository,  can  be  found  at
       http://libseccomp.sf.net.   This  library  is  currently under development, please report any bugs at the
       project site or directly to the author.

AUTHOR

       Paul Moore <paul@paul-moore.com>

SEE ALSO

       seccomp_rule_add(3), seccomp_rule_add_exact(3)