Fix potential underflow in item counting - sacc - sacc (saccomys): simple gopher client.
       
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       ---
 (DIR) commit 9041f6140da12aadc5c08ff33f6a67b2c5a1bfd9
 (DIR) parent 02b786ac6c63da345c297bf47563d00985dedcb6
 (HTM) Author: Quentin Rameau <quinq@fifth.space>
       Date:   Fri, 23 Jun 2017 20:56:47 +0200
       
       Fix potential underflow in item counting
       
       Diffstat:
         sacc.c                              |       6 ++++--
       
       1 file changed, 4 insertions(+), 2 deletions(-)
       ---
 (DIR) diff --git a/sacc.c b/sacc.c
       @@ -261,9 +261,11 @@ molddiritem(char *raw)
        
                for (crlf = raw, nitems = 0; p = strstr(crlf, "\r\n"); ++nitems)
                        crlf = p+2;
       -        if (--nitems < 1)
       +        if (nitems <= 1)
                        return NULL;
       -        if (strcmp(crlf-3, ".\r\n"))
       +        if (!strcmp(crlf-3, ".\r\n"))
       +                --nitems;
       +        else
                        fprintf(stderr, "Parsing error: missing .\\r\\n last line\n");
        
                dir = xmalloc(sizeof(Dir));