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D6178.1794653082.diff
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D6178.1794653082.diff
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Index: usr.sbin/vidcontrol/vidcontrol.c
===================================================================
--- usr.sbin/vidcontrol/vidcontrol.c
+++ usr.sbin/vidcontrol/vidcontrol.c
@@ -393,12 +393,11 @@
if (nmappings == 0)
return (NULL);
- t = malloc(sizeof *t * nmappings);
+ if ((t = malloc(sizeof *t * nmappings)) == NULL)
+ err(1, "malloc");
- if (fread(t, sizeof *t * nmappings, 1, f) != 1) {
- perror("mappings");
- exit(1);
- }
+ if (fread(t, sizeof *t * nmappings, 1, f) != 1)
+ err(1, "read mappings");
for (i = 0; i < nmappings; i++) {
t[i].src = be32toh(t[i].src);
@@ -422,7 +421,7 @@
}
}
-static int
+static void
load_vt4font(FILE *f)
{
struct vt4font_header fh;
@@ -430,15 +429,11 @@
size_t glyphsize;
unsigned int i;
- if (fread(&fh, sizeof fh, 1, f) != 1) {
- perror("file_header");
- return (1);
- }
+ if (fread(&fh, sizeof fh, 1, f) != 1)
+ err(1, "read file_header");
- if (memcmp(fh.magic, "VFNT0002", 8) != 0) {
- fprintf(stderr, "Bad magic\n");
- return (1);
- }
+ if (memcmp(fh.magic, "VFNT0002", 8) != 0)
+ errx(1, "Bad magic in font file\n");
for (i = 0; i < VFNT_MAPS; i++)
vfnt.map_count[i] = be32toh(fh.map_count[i]);
@@ -447,21 +442,21 @@
vfnt.height = fh.height;
glyphsize = howmany(vfnt.width, 8) * vfnt.height * vfnt.glyph_count;
- vfnt.glyphs = malloc(glyphsize);
+ if ((vfnt.glyphs = malloc(glyphsize)) == NULL)
+ err(1, "malloc");
- if (fread(vfnt.glyphs, glyphsize, 1, f) != 1) {
- perror("glyphs");
- return (1);
- }
+ if (fread(vfnt.glyphs, glyphsize, 1, f) != 1)
+ err(1, "read glyphs");
for (i = 0; i < VFNT_MAPS; i++)
vfnt.map[i] = load_vt4mappingtable(vfnt.map_count[i], f);
- if (ioctl(STDIN_FILENO, PIO_VFONT, &vfnt) == -1) {
- perror("PIO_VFONT");
- return (1);
- }
- return (0);
+ if (ioctl(STDIN_FILENO, PIO_VFONT, &vfnt) == -1)
+ err(1, "PIO_VFONT");
+
+ for (i = 0; i < VFNT_MAPS; i++)
+ free(vfnt.map[i]);
+ free(vfnt.glyphs);
}
/*
@@ -511,8 +506,7 @@
}
if (vt4_mode) {
- if(load_vt4font(fd))
- warn("failed to load font \"%s\"", filename);
+ load_vt4font(fd);
fclose(fd);
return;
}

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