osama/dwmblocks
1
0
Fork 0
mirror of https://github.com/mintycube/dwmblocks.git synced 2024-10-22 14:05:47 +02:00
Code Issues Packages Projects Releases Wiki Activity

Handle empty command outputs properly

Browse Source
This commit is contained in:
Utkarsh Verma 2021-10-15 15:26:08 +05:30
parent 22916019dc
commit 68d3792030
No known key found for this signature in database
GPG Key ID: 817656CF818EFCCC
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
main.c
View File

@ -67,9 +67,9 @@ int getStatus(char* new, char* old) {
for (int i = 0; i < LEN(blocks); i++) {
#ifdef TRAILING_DELIMITER
if (strlen(outputs[i]) > (blocks[i].signal > 0))
if (strlen(outputs[i]))
#else
if (strlen(new) && strlen(outputs[i]) > (blocks[i].signal > 0))
if (strlen(new) && strlen(outputs[i]))
#endif
strcat(new, DELIMITER);
strcat(new, outputs[i]);
@ -78,18 +78,21 @@ int getStatus(char* new, char* old) {
}
void updateBlock(int i) {
char* output = outputs[i];
char buffer[LEN(outputs[0])];
int bytesRead = read(pipes[i][0], buffer, LEN(buffer));
buffer[bytesRead - 1] = '\0';
// Clear the pipe
if (bytesRead == LEN(buffer)) {
// Clear the pipe
char ch;
while (read(pipes[i][0], &ch, 1) == 1 && ch != '\n')
;
} else if (bytesRead == 2) {
output[0] = '\0';
return;
}
char* output = outputs[i];
if (blocks[i].signal > 0) {
output[0] = blocks[i].signal;
output++;