aboutsummaryrefslogtreecommitdiff
path: root/src/misc.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/misc.c')
-rw-r--r--src/misc.c57
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;
+}