Some refactoring

1 files changed, 57 insertions, 0 deletions

diff --git a/src/misc.c b/src/misc.c
new file mode 100644
index 0000000..c2803a6
--- /dev/null
+++ b/src/misc.c
@@ -0,0 +1,57 @@
+/*
+ * misc.c
+ * (c) 2019, Jonas Gunz, jonasgunz.de
+ * <Description>
+ * <License>
+*/
+
+#include "misc.h"
+
+pid_t fork_run(int _stdin, int _stdout, int _stderr, int argc, char* argv[])
+{
+	pid_t pid = fork();
+	
+	if(pid == 0) {//child
+		dup2 (_stdin,  STDIN_FILENO);
+		dup2 (_stdout, STDOUT_FILENO);
+		dup2 (_stderr, STDERR_FILENO);
+
+		char* arv[argc + 1];
+
+		for(int i = 0; i < argc; i++)
+			arv[i] = argv[i];
+
+		arv[argc] = NULL;
+
+		execv(argv[0], arv);
+
+		printf("EXEC ERROR %i: %s\r\n", errno, strerror(errno));
+		exit(1);
+	}
+	else {
+		return pid;
+	}
+}
+
+
+int try_write(int _fd, char *_buff, int _size, int _retry)
+{
+	if( _size <= 0)
+		return 0;
+
+	int written = 0;
+	int cntr = 0;
+
+	while (written != _size) {
+		int ret = write ( _fd, _buff + written, _size - written);
+		
+		if(ret < 0)
+			return 1;
+		else
+			written += ret; 
+
+		if(++cntr > _retry)
+			return 1;
+	}
+	return 0;
+}