all open file descriptors, lest wierdness happen later.
*
*/
+/* The parsing engine of this program is officially at a dead-end.
+ * Future work in that direction should move to the work posted
+ * at http://doolittle.faludi.com/~larry/parser.html .
+ * A start on the integration of that work with the rest of sh.c
+ * is at http://codepoet.org/sh.c .
+ */
//
//This works pretty well now, and is now on by default.
#define BB_FEATURE_SH_ENVIRONMENT
int (*function) (struct child_prog *); /* function ptr */
};
+struct close_me {
+ int fd;
+ struct close_me *next;
+};
+
/* function prototypes for builtins */
static int builtin_cd(struct child_prog *cmd);
static int builtin_env(struct child_prog *dummy);
/* function prototypes for shell stuff */
+static void mark_open(int fd);
+static void mark_closed(int fd);
static void checkjobs(struct jobset *job_list);
static int get_command(FILE * source, char *command);
static int parse_command(char **command_ptr, struct job *job, int *inbg);
static struct jobset job_list = { NULL, NULL };
static int argc;
static char **argv;
+static struct close_me *close_me_head = NULL;
#ifdef BB_FEATURE_SH_ENVIRONMENT
static int last_bg_pid=-1;
static int last_return_code=-1;
{
FILE *input;
int status;
+ int fd;
if (child->argv[1] == NULL)
return EXIT_FAILURE;
return EXIT_FAILURE;
}
+ fd=fileno(input);
+ mark_open(fd);
/* Now run the file */
status = busy_loop(input);
fclose(input);
+ mark_closed(fd);
return (status);
}
}
#endif
+static void mark_open(int fd)
+{
+ struct close_me *new = xmalloc(sizeof(struct close_me));
+ new->fd = fd;
+ new->next = close_me_head;
+ close_me_head = new;
+}
+
+static void mark_closed(int fd)
+{
+ struct close_me *tmp;
+ if (close_me_head == NULL || close_me_head->fd != fd)
+ error_msg_and_die("corrupt close_me");
+ tmp = close_me_head;
+ close_me_head = close_me_head->next;
+ free(tmp);
+}
+
+static void close_all()
+{
+ struct close_me *c;
+ for (c=close_me_head; c; c=c->next) {
+ close(c->fd);
+ }
+ close_me_head = NULL;
+}
+
+
/* free up all memory from a job */
static void free_job(struct job *cmd)
{
static int get_command(FILE * source, char *command)
{
char *prompt_str;
-
+
if (source == NULL) {
if (local_pending_command) {
/* a command specified (-c option): return it & mark it done */
if (source == stdin) {
prompt_str = setup_prompt_string(shell_context);
-
+
#ifdef BB_FEATURE_SH_COMMAND_EDITING
/*
** enable command line editing only while a command line
*/
cmdedit_init();
cmdedit_read_input(prompt_str, command);
- free( prompt_str);
+ free(prompt_str);
cmdedit_terminate();
return 0;
#else
- fprintf(stdout, "%s", prompt_str);
+ fputs(prompt_str, stdout);
+ free(prompt_str);
#endif
}
#ifdef BB_FEATURE_SH_BACKTICKS
case '`':
/* Exec a backtick-ed command */
+ /* Besides any previous brokenness, I have not
+ * updated backtick handling for close_me support.
+ * I don't know if it needs it or not. -- LRD */
{
char* charptr1=NULL, *charptr2;
char* ptr=NULL;
#endif
execvp(child->argv[0], child->argv);
- error_msg_and_die("%s: %s\n", child->argv[0],
- strerror(errno));
+ perror_msg_and_die("%s", child->argv[0]);
}
static void insert_job(struct job *newjob, int inbg)
if (!(child->pid = fork())) {
signal(SIGTTOU, SIG_DFL);
+ close_all();
+
if (outpipe[1]!=-1) {
close(outpipe[0]);
}
while (!job_list.fg->progs[i].pid ||
job_list.fg->progs[i].is_stopped == 1) i++;
- waitpid(job_list.fg->progs[i].pid, &status, WUNTRACED);
+ if (waitpid(job_list.fg->progs[i].pid, &status, WUNTRACED)<0)
+ perror_msg_and_die("waitpid(%d)",job_list.fg->progs[i].pid);
if (WIFEXITED(status) || WIFSIGNALED(status)) {
/* the child exited */
#endif
if (argv[0] && argv[0][0] == '-') {
- FILE *input;
- input = fopen("/etc/profile", "r");
- if (!input) {
- fprintf(stdout, "Couldn't open file '/etc/profile'\n");
- } else {
- /* Now run the file */
- busy_loop(input);
- fclose(input);
- }
+ FILE *prof_input;
+ prof_input = fopen("/etc/profile", "r");
+ if (!prof_input) {
+ fprintf(stdout, "Couldn't open file '/etc/profile'\n");
+ } else {
+ int tmp_fd = fileno(prof_input);
+ mark_open(tmp_fd);
+ /* Now run the file */
+ busy_loop(prof_input);
+ fclose(prof_input);
+ mark_closed(tmp_fd);
+ }
}
while ((opt = getopt(argc_l, argv_l, "cxi")) > 0) {
} else if (local_pending_command==NULL) {
//fprintf(stdout, "optind=%d argv[optind]='%s'\n", optind, argv[optind]);
input = xfopen(argv[optind], "r");
+ mark_open(fileno(input)); /* be lazy, never mark this closed */
}
/* initialize the cwd -- this is never freed...*/
*
*/
+/* The parsing engine of this program is officially at a dead-end.
+ * Future work in that direction should move to the work posted
+ * at http://doolittle.faludi.com/~larry/parser.html .
+ * A start on the integration of that work with the rest of sh.c
+ * is at http://codepoet.org/sh.c .
+ */
//
//This works pretty well now, and is now on by default.
#define BB_FEATURE_SH_ENVIRONMENT
int (*function) (struct child_prog *); /* function ptr */
};
+struct close_me {
+ int fd;
+ struct close_me *next;
+};
+
/* function prototypes for builtins */
static int builtin_cd(struct child_prog *cmd);
static int builtin_env(struct child_prog *dummy);
/* function prototypes for shell stuff */
+static void mark_open(int fd);
+static void mark_closed(int fd);
static void checkjobs(struct jobset *job_list);
static int get_command(FILE * source, char *command);
static int parse_command(char **command_ptr, struct job *job, int *inbg);
static struct jobset job_list = { NULL, NULL };
static int argc;
static char **argv;
+static struct close_me *close_me_head = NULL;
#ifdef BB_FEATURE_SH_ENVIRONMENT
static int last_bg_pid=-1;
static int last_return_code=-1;
{
FILE *input;
int status;
+ int fd;
if (child->argv[1] == NULL)
return EXIT_FAILURE;
return EXIT_FAILURE;
}
+ fd=fileno(input);
+ mark_open(fd);
/* Now run the file */
status = busy_loop(input);
fclose(input);
+ mark_closed(fd);
return (status);
}
}
#endif
+static void mark_open(int fd)
+{
+ struct close_me *new = xmalloc(sizeof(struct close_me));
+ new->fd = fd;
+ new->next = close_me_head;
+ close_me_head = new;
+}
+
+static void mark_closed(int fd)
+{
+ struct close_me *tmp;
+ if (close_me_head == NULL || close_me_head->fd != fd)
+ error_msg_and_die("corrupt close_me");
+ tmp = close_me_head;
+ close_me_head = close_me_head->next;
+ free(tmp);
+}
+
+static void close_all()
+{
+ struct close_me *c;
+ for (c=close_me_head; c; c=c->next) {
+ close(c->fd);
+ }
+ close_me_head = NULL;
+}
+
+
/* free up all memory from a job */
static void free_job(struct job *cmd)
{
static int get_command(FILE * source, char *command)
{
char *prompt_str;
-
+
if (source == NULL) {
if (local_pending_command) {
/* a command specified (-c option): return it & mark it done */
if (source == stdin) {
prompt_str = setup_prompt_string(shell_context);
-
+
#ifdef BB_FEATURE_SH_COMMAND_EDITING
/*
** enable command line editing only while a command line
*/
cmdedit_init();
cmdedit_read_input(prompt_str, command);
- free( prompt_str);
+ free(prompt_str);
cmdedit_terminate();
return 0;
#else
- fprintf(stdout, "%s", prompt_str);
+ fputs(prompt_str, stdout);
+ free(prompt_str);
#endif
}
#ifdef BB_FEATURE_SH_BACKTICKS
case '`':
/* Exec a backtick-ed command */
+ /* Besides any previous brokenness, I have not
+ * updated backtick handling for close_me support.
+ * I don't know if it needs it or not. -- LRD */
{
char* charptr1=NULL, *charptr2;
char* ptr=NULL;
#endif
execvp(child->argv[0], child->argv);
- error_msg_and_die("%s: %s\n", child->argv[0],
- strerror(errno));
+ perror_msg_and_die("%s", child->argv[0]);
}
static void insert_job(struct job *newjob, int inbg)
if (!(child->pid = fork())) {
signal(SIGTTOU, SIG_DFL);
+ close_all();
+
if (outpipe[1]!=-1) {
close(outpipe[0]);
}
while (!job_list.fg->progs[i].pid ||
job_list.fg->progs[i].is_stopped == 1) i++;
- waitpid(job_list.fg->progs[i].pid, &status, WUNTRACED);
+ if (waitpid(job_list.fg->progs[i].pid, &status, WUNTRACED)<0)
+ perror_msg_and_die("waitpid(%d)",job_list.fg->progs[i].pid);
if (WIFEXITED(status) || WIFSIGNALED(status)) {
/* the child exited */
#endif
if (argv[0] && argv[0][0] == '-') {
- FILE *input;
- input = fopen("/etc/profile", "r");
- if (!input) {
- fprintf(stdout, "Couldn't open file '/etc/profile'\n");
- } else {
- /* Now run the file */
- busy_loop(input);
- fclose(input);
- }
+ FILE *prof_input;
+ prof_input = fopen("/etc/profile", "r");
+ if (!prof_input) {
+ fprintf(stdout, "Couldn't open file '/etc/profile'\n");
+ } else {
+ int tmp_fd = fileno(prof_input);
+ mark_open(tmp_fd);
+ /* Now run the file */
+ busy_loop(prof_input);
+ fclose(prof_input);
+ mark_closed(tmp_fd);
+ }
}
while ((opt = getopt(argc_l, argv_l, "cxi")) > 0) {
} else if (local_pending_command==NULL) {
//fprintf(stdout, "optind=%d argv[optind]='%s'\n", optind, argv[optind]);
input = xfopen(argv[optind], "r");
+ mark_open(fileno(input)); /* be lazy, never mark this closed */
}
/* initialize the cwd -- this is never freed...*/
*
*/
+/* The parsing engine of this program is officially at a dead-end.
+ * Future work in that direction should move to the work posted
+ * at http://doolittle.faludi.com/~larry/parser.html .
+ * A start on the integration of that work with the rest of sh.c
+ * is at http://codepoet.org/sh.c .
+ */
//
//This works pretty well now, and is now on by default.
#define BB_FEATURE_SH_ENVIRONMENT
int (*function) (struct child_prog *); /* function ptr */
};
+struct close_me {
+ int fd;
+ struct close_me *next;
+};
+
/* function prototypes for builtins */
static int builtin_cd(struct child_prog *cmd);
static int builtin_env(struct child_prog *dummy);
/* function prototypes for shell stuff */
+static void mark_open(int fd);
+static void mark_closed(int fd);
static void checkjobs(struct jobset *job_list);
static int get_command(FILE * source, char *command);
static int parse_command(char **command_ptr, struct job *job, int *inbg);
static struct jobset job_list = { NULL, NULL };
static int argc;
static char **argv;
+static struct close_me *close_me_head = NULL;
#ifdef BB_FEATURE_SH_ENVIRONMENT
static int last_bg_pid=-1;
static int last_return_code=-1;
{
FILE *input;
int status;
+ int fd;
if (child->argv[1] == NULL)
return EXIT_FAILURE;
return EXIT_FAILURE;
}
+ fd=fileno(input);
+ mark_open(fd);
/* Now run the file */
status = busy_loop(input);
fclose(input);
+ mark_closed(fd);
return (status);
}
}
#endif
+static void mark_open(int fd)
+{
+ struct close_me *new = xmalloc(sizeof(struct close_me));
+ new->fd = fd;
+ new->next = close_me_head;
+ close_me_head = new;
+}
+
+static void mark_closed(int fd)
+{
+ struct close_me *tmp;
+ if (close_me_head == NULL || close_me_head->fd != fd)
+ error_msg_and_die("corrupt close_me");
+ tmp = close_me_head;
+ close_me_head = close_me_head->next;
+ free(tmp);
+}
+
+static void close_all()
+{
+ struct close_me *c;
+ for (c=close_me_head; c; c=c->next) {
+ close(c->fd);
+ }
+ close_me_head = NULL;
+}
+
+
/* free up all memory from a job */
static void free_job(struct job *cmd)
{
static int get_command(FILE * source, char *command)
{
char *prompt_str;
-
+
if (source == NULL) {
if (local_pending_command) {
/* a command specified (-c option): return it & mark it done */
if (source == stdin) {
prompt_str = setup_prompt_string(shell_context);
-
+
#ifdef BB_FEATURE_SH_COMMAND_EDITING
/*
** enable command line editing only while a command line
*/
cmdedit_init();
cmdedit_read_input(prompt_str, command);
- free( prompt_str);
+ free(prompt_str);
cmdedit_terminate();
return 0;
#else
- fprintf(stdout, "%s", prompt_str);
+ fputs(prompt_str, stdout);
+ free(prompt_str);
#endif
}
#ifdef BB_FEATURE_SH_BACKTICKS
case '`':
/* Exec a backtick-ed command */
+ /* Besides any previous brokenness, I have not
+ * updated backtick handling for close_me support.
+ * I don't know if it needs it or not. -- LRD */
{
char* charptr1=NULL, *charptr2;
char* ptr=NULL;
#endif
execvp(child->argv[0], child->argv);
- error_msg_and_die("%s: %s\n", child->argv[0],
- strerror(errno));
+ perror_msg_and_die("%s", child->argv[0]);
}
static void insert_job(struct job *newjob, int inbg)
if (!(child->pid = fork())) {
signal(SIGTTOU, SIG_DFL);
+ close_all();
+
if (outpipe[1]!=-1) {
close(outpipe[0]);
}
while (!job_list.fg->progs[i].pid ||
job_list.fg->progs[i].is_stopped == 1) i++;
- waitpid(job_list.fg->progs[i].pid, &status, WUNTRACED);
+ if (waitpid(job_list.fg->progs[i].pid, &status, WUNTRACED)<0)
+ perror_msg_and_die("waitpid(%d)",job_list.fg->progs[i].pid);
if (WIFEXITED(status) || WIFSIGNALED(status)) {
/* the child exited */
#endif
if (argv[0] && argv[0][0] == '-') {
- FILE *input;
- input = fopen("/etc/profile", "r");
- if (!input) {
- fprintf(stdout, "Couldn't open file '/etc/profile'\n");
- } else {
- /* Now run the file */
- busy_loop(input);
- fclose(input);
- }
+ FILE *prof_input;
+ prof_input = fopen("/etc/profile", "r");
+ if (!prof_input) {
+ fprintf(stdout, "Couldn't open file '/etc/profile'\n");
+ } else {
+ int tmp_fd = fileno(prof_input);
+ mark_open(tmp_fd);
+ /* Now run the file */
+ busy_loop(prof_input);
+ fclose(prof_input);
+ mark_closed(tmp_fd);
+ }
}
while ((opt = getopt(argc_l, argv_l, "cxi")) > 0) {
} else if (local_pending_command==NULL) {
//fprintf(stdout, "optind=%d argv[optind]='%s'\n", optind, argv[optind]);
input = xfopen(argv[optind], "r");
+ mark_open(fileno(input)); /* be lazy, never mark this closed */
}
/* initialize the cwd -- this is never freed...*/
projects / platform / upstream / busybox.git / commitdiff