[hackers] [sent] fix several number overflow issues || Markus Teich

[git]

commit 84734c73e82b8b30e2eef82c192a53010fb2d35f
Author:     Markus Teich <markus.te...@stusta.mhn.de>
AuthorDate: Tue Nov 17 00:19:39 2015 +0100
Commit:     Markus Teich <markus.te...@stusta.mhn.de>
CommitDate: Tue Nov 17 00:19:39 2015 +0100

    fix several number overflow issues

diff --git a/sent.c b/sent.c
index c4696be..6fd288b 100644
--- a/sent.c
+++ b/sent.c
@@ -318,7 +318,7 @@ void pngdraw(Image *img)
 
 void getfontsize(Slide *s, unsigned int *width, unsigned int *height)
 {
-       size_t i, j;
+       int i, j;
        unsigned int curw, imax;
        float lfac = linespacing * (s->linecount - 1) + 1;
 
@@ -326,7 +326,7 @@ void getfontsize(Slide *s, unsigned int *width, unsigned 
int *height)
        for (j = NUMFONTSCALES - 1; j >= 0; j--)
                if (fonts[j]->h * lfac <= xw.uh)
                        break;
-       drw_setfontset(d, fonts[j]);
+       drw_setfontset(d, fonts[++j]);
 
        /* fit width */
        *width = 0;
@@ -334,7 +334,7 @@ void getfontsize(Slide *s, unsigned int *width, unsigned 
int *height)
                curw = drw_fontset_getwidth(d, s->lines[i]);
                if (curw >= *width)
                        imax = i;
-               while (j >= 0 && curw > xw.uw) {
+               while (j > 0 && curw > xw.uw) {
                        drw_setfontset(d, fonts[--j]);
                        curw = drw_fontset_getwidth(d, s->lines[i]);
                }