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radical re-formatting 3/3: Error checks

Browse Source 
Check for `< 0` instead of `== -1`.

Fixes coding style. Formatting commits suck, incoherent coding style
sucks more.
https://suckless.org/coding_style/
This commit is contained in:
drkhsh 2022-10-28 00:21:02 +02:00
parent 3251e91187
commit cce2e5ecb0
4 changed files with 15 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
components/cpu.c
View File

@ -118,8 +118,7 @@
size = sizeof(freq); size = sizeof(freq);
/* in MHz */ /* in MHz */
if (sysctlbyname("hw.clockrate", &freq, &size, NULL, 0) == -1 if (sysctlbyname("hw.clockrate", &freq, &size, NULL, 0) < 0 || !size) {
|| !size) {
warn("sysctlbyname 'hw.clockrate':"); warn("sysctlbyname 'hw.clockrate':");
return NULL; return NULL;
} }
@ -136,8 +135,7 @@
size = sizeof(a); size = sizeof(a);
memcpy(b, a, sizeof(b)); memcpy(b, a, sizeof(b));
if (sysctlbyname("kern.cp_time", &a, &size, NULL, 0) == -1 if (sysctlbyname("kern.cp_time", &a, &size, NULL, 0) < 0 || !size) {
|| !size) {
warn("sysctlbyname 'kern.cp_time':"); warn("sysctlbyname 'kern.cp_time':");
return NULL; return NULL;
} }

4
components/netspeeds.c
View File

@ -71,7 +71,7 @@
oldrxbytes = rxbytes; oldrxbytes = rxbytes;
if (getifaddrs(&ifal) == -1) { if (getifaddrs(&ifal) < 0) {
warn("getifaddrs failed"); warn("getifaddrs failed");
return NULL; return NULL;
} }
@ -105,7 +105,7 @@
oldtxbytes = txbytes; oldtxbytes = txbytes;
if (getifaddrs(&ifal) == -1) { if (getifaddrs(&ifal) < 0) {
warn("getifaddrs failed"); warn("getifaddrs failed");
return NULL; return NULL;
} }

20
components/ram.c
View File

@ -159,8 +159,8 @@
size_t len; size_t len;
len = sizeof(struct vmtotal); len = sizeof(struct vmtotal);
if (sysctl(mib, 2, &vm_stats, &len, NULL, 0) == -1 if (sysctl(mib, 2, &vm_stats, &len, NULL, 0) < 0
|| !len) || !len)
return NULL; return NULL;
return fmt_human(vm_stats.t_free * getpagesize(), 1024); return fmt_human(vm_stats.t_free * getpagesize(), 1024);
@ -172,8 +172,8 @@
size_t len; size_t len;
len = sizeof(npages); len = sizeof(npages);
if (sysctlbyname("vm.stats.vm.v_page_count", &npages, &len, NULL, 0) == -1 if (sysctlbyname("vm.stats.vm.v_page_count",
|| !len) &npages, &len, NULL, 0) < 0 || !len)
return NULL; return NULL;
return fmt_human(npages * getpagesize(), 1024); return fmt_human(npages * getpagesize(), 1024);
@ -186,12 +186,12 @@
size_t len; size_t len;
len = sizeof(npages); len = sizeof(npages);
if (sysctlbyname("vm.stats.vm.v_page_count", &npages, &len, NULL, 0) == -1 if (sysctlbyname("vm.stats.vm.v_page_count",
|| !len) &npages, &len, NULL, 0) < 0 || !len)
return NULL; return NULL;
if (sysctlbyname("vm.stats.vm.v_active_count", &active, &len, NULL, 0) == -1 if (sysctlbyname("vm.stats.vm.v_active_count",
|| !len) &active, &len, NULL, 0) < 0 || !len)
return NULL; return NULL;
return bprintf("%d", active * 100 / npages); return bprintf("%d", active * 100 / npages);
@ -203,8 +203,8 @@
size_t len; size_t len;
len = sizeof(active); len = sizeof(active);
if (sysctlbyname("vm.stats.vm.v_active_count", &active, &len, NULL, 0) == -1 if (sysctlbyname("vm.stats.vm.v_active_count",
|| !len) &active, &len, NULL, 0) < 0 || !len)
return NULL; return NULL;
return fmt_human(active * getpagesize(), 1024); return fmt_human(active * getpagesize(), 1024);

2
components/swap.c
View File

@ -204,7 +204,7 @@
return 0; return 0;
} }
if(kvm_getswapinfo(kd, swap_info, size, 0 /* Unused flags */) == -1) { if (kvm_getswapinfo(kd, swap_info, size, 0 /* Unused flags */) < 0) {
warn("kvm_getswapinfo:"); warn("kvm_getswapinfo:");
kvm_close(kd); kvm_close(kd);
return 0; return 0;