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#include "../lib/io/io.h"
#include "../lib/sys/sizes.h"
#include "../lib/sys/execve.h"
#include "../lib/env/env.h"
#include "../lib/sys/types.h"
#include "../lib/cstr/cstr.h"
char buf[BUFSIZ] = "";
void add_to_env(char *line, u64 linenumber)
{
char *begin = line;
char *key;
char *value;
key = line;
while (*line != '=' && *line) ++line;
if (!*line) {
wff(STDERR_FD, "error: '%s' %i no valid environment line\n", begin, linenumber);
return;
}
*(line++) = 0;
value = line;
while (*line != '\n' && *line) ++line;
if (*line == '\n') *line = 0;
setenv(key, value);
}
int main(int argc, const char **argv)
{
if (argc == 1) {
const char**envp = getenvp();
while (*envp) {
wstdf("%s\n", *envp);
++envp;
}
return 0;
}
u64 fd = STDIN_FD;
i64 size;
char *p;
u64 linenumber = 1;
const char **execargv = argv + 1;
if (argv[1][0] == '-' && argv[1][1] == 'f') {
if (argc > 3) {
fd = open(argv[2], OPEN_READ_ONLY, 0);
if (fd < 0) {
wff(STDERR_FD, "venv: cannot open file '%s'\n", argv[2]);
return -1;
}
execargv = argv + 3;
} else {
wf(STDERR_FD, "venv [-f file] command [args...]\n");
return -1;
}
}
while ((size = get_next_line_from_fd(fd, buf)) >= 0) {
if (cstr_length(buf)) {
add_to_env(buf, linenumber++);
}
}
execve(execargv[0], execargv, getenvp());
wff(STDERR_FD, "cannot execute '%s'\n", execargv[0]);
return -1;
}
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