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Code Issues Releases Activity

fix for unused results in linux.c

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This commit is contained in:
Phil Sutter 2009-12-20 03:10:15 +01:00
parent c986aa6346
commit 8662e6630e
1 changed files with 27 additions and 14 deletions
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41
src/linux.c
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@ -123,7 +123,8 @@ void update_uptime(void)
info.uptime = 0.0;
return;
}
fscanf(fp, "%lf", &info.uptime);
if (fscanf(fp, "%lf", &info.uptime) <= 0)
info.uptime = 0;
fclose(fp);
}
}
@ -208,7 +209,8 @@ void print_laptop_mode(struct text_object *obj, char *p, int p_max_size)
(void)obj;
if ((fp = fopen("/proc/sys/vm/laptop_mode", "r")) != NULL) {
fscanf(fp, "%d\n", &val);
if (fscanf(fp, "%d\n", &val) <= 0)
val = 0;
fclose(fp);
}
snprintf(p, p_max_size, "%d", val);
@ -230,8 +232,7 @@ void print_ioscheduler(struct text_object *obj, char *p, int p_max_size)
if ((fp = fopen(buf, "r")) == NULL)
goto out_fail;
while (!feof(fp)) {
fscanf(fp, "%127s", buf);
while (fscanf(fp, "%127s", buf) == 1) {
if (buf[0] == '[') {
buf[strlen(buf) - 1] = '\0';
snprintf(p, p_max_size, "%s", buf + 1);
@ -292,7 +293,10 @@ void update_gateway_info(void)
}
/* skip over the table header line, which is always present */
fscanf(fp, "%*[^\n]\n");
if (fscanf(fp, "%*[^\n]\n") < 0) {
fclose(fp);
return;
}
while (!feof(fp)) {
if(fscanf(fp, RT_ENTRY_FORMAT,
@ -375,8 +379,11 @@ void update_net_stats(void)
return;
}
fgets(buf, 255, net_dev_fp); /* garbage */
fgets(buf, 255, net_dev_fp); /* garbage (field names) */
if (!fgets(buf, 255, net_dev_fp) || /* garbage */
!fgets(buf, 255, net_dev_fp)) { /* garbage (field names) */
fclose(net_dev_fp);
return;
}
/* read each interface */
for (i2 = 0; i2 < MAX_NET_INTERFACES; i2++) {
@ -601,7 +608,8 @@ void update_threads(void)
info.threads = 0;
return;
}
fscanf(fp, "%*f %*f %*f %*d/%hu", &info.threads);
if (fscanf(fp, "%*f %*f %*f %*d/%hu", &info.threads) <= 0)
info.threads = 0;
fclose(fp);
}
}
@ -830,8 +838,9 @@ void update_load_average(void)
info.loadavg[0] = info.loadavg[1] = info.loadavg[2] = 0.0;
return;
}
fscanf(fp, "%f %f %f", &info.loadavg[0], &info.loadavg[1],
&info.loadavg[2]);
if (fscanf(fp, "%f %f %f", &info.loadavg[0], &info.loadavg[1],
&info.loadavg[2]) < 0)
info.loadavg[0] = info.loadavg[1] = info.loadavg[2] = 0.0;
fclose(fp);
}
}
@ -1330,7 +1339,8 @@ void get_acpi_fan(char *p_client_buffer, size_t client_buffer_size)
return;
}
memset(buf, 0, sizeof(buf));
fscanf(fp, "%*s %99s", buf);
if (fscanf(fp, "%*s %99s", buf) <= 0)
perror("fscanf()");
fclose(fp);
snprintf(p_client_buffer, client_buffer_size, "%s", buf);
@ -1395,7 +1405,8 @@ void get_acpi_ac_adapter(char *p_client_buffer, size_t client_buffer_size)
return;
}
memset(buf, 0, sizeof(buf));
fscanf(fp, "%*s %99s", buf);
if (fscanf(fp, "%*s %99s", buf) <= 0)
perror("fscanf()");
fclose(fp);
snprintf(p_client_buffer, client_buffer_size, "%s", buf);
@ -1892,8 +1903,9 @@ void get_battery_stuff(char *buffer, unsigned int n, const char *bat, int item)
unsigned int ac, status, flag;
int life;
fscanf(apm_bat_fp[idx], "%*s %*s %*x %x %x %x %d%%",
&ac, &status, &flag, &life);
if (fscanf(apm_bat_fp[idx], "%*s %*s %*x %x %x %x %d%%",
&ac, &status, &flag, &life) <= 0)
goto read_bat_fp_end;
if (life == -1) {
/* could check now that there is ac */
@ -1906,6 +1918,7 @@ void get_battery_stuff(char *buffer, unsigned int n, const char *bat, int item)
snprintf(last_battery_str[idx], 64, "%d%%", life);
}
read_bat_fp_end:
/* it seemed to buffer it so file must be closed (or could use
* syscalls directly but I don't feel like coding it now) */
fclose(apm_bat_fp[idx]);