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Add validation to check for missing files in exec() args

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EDiasAlberto
2024-11-11 23:10:02 +00:00
parent 9e692ced9e
commit 72afecfbda
1 changed files with 4 additions and 0 deletions
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4
src/userprog/process.c
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@@ -81,6 +81,10 @@ process_execute (const char *cmd)
of the process. */ of the process. */
char *file_name = strtok_r (cmd_copy, " ", &data->cmd_saveptr); char *file_name = strtok_r (cmd_copy, " ", &data->cmd_saveptr);
/* Validates that the current file to be executed is a valid file */
if (filesys_open (file_name) == NULL)
return TID_ERROR;
/* Create a new thread to execute the command, by initializing /* Create a new thread to execute the command, by initializing
it running the function 'start_process' with the appropriate it running the function 'start_process' with the appropriate
arguments. For details of arguments, see 'start_process'. */ arguments. For details of arguments, see 'start_process'. */