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#include "variable.h"
#include "../lib/cstr/cstr.h"
#include "../lib/sys/pipe.h"
#include "../lib/sys/dup2.h"
#include "../lib/io/io.h"
#include "../lib/sys/types.h"
#include "../lib/env/env.h"
char current_write_variable[128] = { 0 };
int fd[2];
char readbuf[BUFSIZ];
void cleanbuf(char *buf, int n) {
for (int i = 0; i < n; ++i) buf[i] = 0;
}
char *setup_variable_line_context(char *line)
{
char* start = line;
fd[PIPE_IN] = STDOUT_FD;
cleanbuf(current_write_variable, 128);
if (line[0] != '[')
return line;
int i = 0;
++line;
while (*line != ']') current_write_variable[i++] = *(line++);
if (*(++line) != '=') {
return start;
}
++line;
current_write_variable[i] = 0;
pipe(fd);
return line;
}
void cleanup_variable_line_context()
{
u64 size = 0;
u64 string_size = 0;
if (current_write_variable[0] == 0)
return;
cleanbuf(readbuf, BUFSIZ);
close(fd[PIPE_IN]);
while ((size = read(fd[PIPE_OUT], readbuf + string_size, BUFSIZ))) {
string_size += size;
}
readbuf[string_size] = 0;
if (readbuf[string_size - 1] == '\n')
readbuf[string_size - 1] = 0;
setenv(current_write_variable, readbuf);
close(fd[PIPE_OUT]);
}
int get_end_fd()
{
return fd[PIPE_IN];
}
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