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Add missing return value checks

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Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
This commit is contained in:
Yegor Yefremov
2018-09-18 13:43:29 +02:00
parent 0ff988eeef
commit 1ce4dc7b39
5 changed files with 58 additions and 17 deletions
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cansniffer.c
+6 -3
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@@ -690,12 +690,15 @@ void writesettings(char* name){
for (i=0; i < 2048 ;i++) {
sprintf(buf, "<%03X>%c.", i, (is_set(i, ENABLE))?'1':'0');
write(fd, buf, 7);
if (write(fd, buf, 7) < 0)
perror("write");
for (j=0; j<8 ; j++){
sprintf(buf, "%02X", sniftab[i].notch.data[j]);
write(fd, buf, 2);
if (write(fd, buf, 2) < 0)
perror("write");
}
write(fd, "\n", 1);
if (write(fd, "\n", 1) < 0)
perror("write");
/* 7 + 16 + 1 = 24 bytes per entry */
}
close(fd);