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Remove \n on output by default, smarter buffer and better command construction on set

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This commit is contained in:
Ethanell 2019-12-19 18:19:34 +01:00
parent 40b3de27aa
commit b745b71207
1 changed files with 11 additions and 15 deletions
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26
xbrightness.c
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@ -1,34 +1,30 @@
#include "xbrightness.h"
void cmd(char *command, char *output) {
FILE *fp;
static void cmd(char *command, char *output) {
FILE *fp = popen(command, "r");
fp = popen(command, "r");
if (fp == NULL) {
output[0] = 0;
} else {
fgets(output, sizeof(output), fp);
pclose(fp);
if (output && output[strlen(output)-1] == '\n') {
output[strlen(output)-1] = 0;
}
}
}
float current() {
char out[BUFFER];
cmd("xrandr --verbose | grep Brightness: | cut -f2 -d\" \"", out); //TODO: Check when 0 screen connected and two or more connected and catch output error
return strtof(out, NULL); //TODO: Return NULL when convert fail
cmd("xrandr --verbose | grep Brightness: | cut -f2 -d\" \"", out);
return strtof(out, NULL);
}
void set(float brightness) {
char screen[BUFFER]; //TODO: Better buffer
char command[BUFFER] = "xrandr --output ";
char command2[] = " --brightness ";
char b[3];
cmd("xrandr | grep \" connected\" | cut -f1 -d\" \"", screen); //TODO: Check when 0 screen connected and two or more connected and catch output error
screen[strlen(screen)-1] = 0;
strcat(command, screen);
strcat(command, command2);
gcvt(brightness, 3, b);
strcat(command, b);
char screenName[64], b[3], command[BUFFER] = "xrandr --output ";
cmd("xrandr | grep \" connected\" | cut -f1 -d\" \"", screenName);
strcat(strcat(strcat(command, screenName), " --brightness "), gcvt(brightness, 3, b));
cmd(command, NULL); //TODO: Catch output error
}