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This commit is contained in:
Ben Harris 2016-11-18 11:36:00 -05:00
parent 6b2a0264b4
commit 2ed22160a9
1 changed files with 13 additions and 4 deletions
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17
util_fns.cc
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@ -61,7 +61,7 @@ void check_cmd_io(simple_command *cmd) {
cmd->infd = open(cmd->infile.c_str(), O_RDONLY);
if (cmd->infd < 0) {
perror("infile");
return;
exit(1);
}
if (dup2(cmd->infd, 0) == -1) {
perror("dup2 infile");
@ -74,7 +74,7 @@ void check_cmd_io(simple_command *cmd) {
cmd->outfd = open(cmd->outfile.c_str(), O_RDWR | O_CREAT | O_TRUNC, 0644);
if (cmd->outfd < 0) {
perror("outfile");
return;
exit(1);
}
if (dup2(cmd->outfd, 1) == -1) {
perror("dup2 outfile");
@ -136,8 +136,17 @@ int expand_and_execute (simple_command *cmd) {
if (pid == 0) {
/* This is the child process. Execute the command. */
check_cmd_io(cmd);
execvp(result.we_wordv[0], result.we_wordv);
cout << "that's not a command, bish" << endl;
execv(result.we_wordv[0], result.we_wordv);
vector<string> path = split(getenv("PATH"), ':');
stringstream searchpath;
for (auto iter: path) {
searchpath.str("");
searchpath << iter << "/" << result.we_wordv[0];
execv(searchpath.str().c_str(), result.we_wordv);
}
cout << "command not found, bish" << endl;
exit (EXIT_FAILURE);
}
else if (pid < 0)