fbset: code shrink

function                                             old     new   delta
ss                                                     -      33     +33
fbset_main                                          1968    1844    -124
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 33/-124)           Total: -91 bytes

1 files changed, 14 insertions, 30 deletions

diff --git a/util-linux/fbset.c b/util-linux/fbset.c
index ac45fe830..5d360b75e 100644
--- a/util-linux/fbset.c
+++ b/util-linux/fbset.c
@@ -170,6 +170,14 @@ enum {
 };
 #endif
 
+static void ss(uint32_t *x, uint32_t flag, char *where, const char *what)
+{
+        if (strstr(where, what))
+                *x &= ~flag;
+        else
+                *x |= flag;
+}
+
 #if ENABLE_FEATURE_FBSET_READMODE
 static int readmode(struct fb_var_screeninfo *base, const char *fn,
                                         const char *mode)
@@ -211,46 +219,22 @@ static int readmode(struct fb_var_screeninfo *base, const char *fn,
                                         &(base->hsync_len), &(base->vsync_len));
                         } else if ((p = strstr(buf, "laced "))) {
                                 //p += 6;
-                                if (strstr(buf, "false")) {
-                                        base->vmode &= ~FB_VMODE_INTERLACED;
-                                } else {
-                                        base->vmode |= FB_VMODE_INTERLACED;
-                                }
+                                ss(&base->vmode, FB_VMODE_INTERLACED, buf, "false");
                         } else if ((p = strstr(buf, "double "))) {
                                 //p += 7;
-                                if (strstr(buf, "false")) {
-                                        base->vmode &= ~FB_VMODE_DOUBLE;
-                                } else {
-                                        base->vmode |= FB_VMODE_DOUBLE;
-                                }
+                                ss(&base->vmode, FB_VMODE_DOUBLE, buf, "false");
                         } else if ((p = strstr(buf, "vsync "))) {
                                 //p += 6;
-                                if (strstr(buf, "low")) {
-                                        base->sync &= ~FB_SYNC_VERT_HIGH_ACT;
-                                } else {
-                                        base->sync |= FB_SYNC_VERT_HIGH_ACT;
-                                }
+                                ss(&base->sync, FB_SYNC_VERT_HIGH_ACT, buf, "low");
                         } else if ((p = strstr(buf, "hsync "))) {
                                 //p += 6;
-                                if (strstr(buf, "low")) {
-                                        base->sync &= ~FB_SYNC_HOR_HIGH_ACT;
-                                } else {
-                                        base->sync |= FB_SYNC_HOR_HIGH_ACT;
-                                }
+                                ss(&base->sync, FB_SYNC_HOR_HIGH_ACT, buf, "low");
                         } else if ((p = strstr(buf, "csync "))) {
                                 //p += 6;
-                                if (strstr(buf, "low")) {
-                                        base->sync &= ~FB_SYNC_COMP_HIGH_ACT;
-                                } else {
-                                        base->sync |= FB_SYNC_COMP_HIGH_ACT;
-                                }
+                                ss(&base->sync, FB_SYNC_COMP_HIGH_ACT, buf, "low");
                         } else if ((p = strstr(buf, "extsync "))) {
                                 //p += 8;
-                                if (strstr(buf, "false")) {
-                                        base->sync &= ~FB_SYNC_EXT;
-                                } else {
-                                        base->sync |= FB_SYNC_EXT;
-                                }
+                                ss(&base->sync, FB_SYNC_EXT, buf, "false");
                         }
 
                         if (strstr(buf, "endmode"))