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cansniffer: fix warning on unused variable 

make use of former (not really) used "ret" in main()

Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
pull/316/head
Lothar Rubusch 2021-10-18 22:02:21 +01:00
parent f7307b8290
commit c36bdc743f
1 changed files with 15 additions and 11 deletions
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16
cansniffer.c
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@ -236,7 +236,7 @@ int main(int argc, char **argv)
long currcms = 0; long currcms = 0;
long lastcms = 0; long lastcms = 0;
unsigned char quiet = 0; unsigned char quiet = 0;
int opt, ret; int opt, ret = 0;
struct timeval timeo, start_tv, tv; struct timeval timeo, start_tv, tv;
struct sockaddr_can addr; struct sockaddr_can addr;
int i; int i;
@ -343,9 +343,11 @@ int main(int argc, char **argv)
} }
} }
if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) { ret = bind(s, (struct sockaddr *)&addr, sizeof(addr));
if (ret < 0) {
perror("bind"); perror("bind");
return 1; close(s);
return ret;
} }
gettimeofday(&start_tv, NULL); gettimeofday(&start_tv, NULL);
@ -362,11 +364,13 @@ int main(int argc, char **argv)
timeo.tv_sec = 0; timeo.tv_sec = 0;
timeo.tv_usec = 10000 * loop; timeo.tv_usec = 10000 * loop;
if ((ret = select(s+1, &rdfs, NULL, NULL, &timeo)) < 0) { ret = select(s+1, &rdfs, NULL, NULL, &timeo);
if (ret < 0) {
//perror("select"); //perror("select");
running = 0; running = 0;
continue; continue;
} } else
ret = 0;
gettimeofday(&tv, NULL); gettimeofday(&tv, NULL);
currcms = (tv.tv_sec - start_tv.tv_sec) * 100 + (tv.tv_usec / 10000); currcms = (tv.tv_sec - start_tv.tv_sec) * 100 + (tv.tv_usec / 10000);
@ -386,7 +390,7 @@ int main(int argc, char **argv)
printf("%s", CSR_SHOW); /* show cursor */ printf("%s", CSR_SHOW); /* show cursor */
close(s); close(s);
return 0; return ret;
} }
void do_modify_sniftab(unsigned int value, unsigned int mask, char cmd) void do_modify_sniftab(unsigned int value, unsigned int mask, char cmd)