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quick analize signed->unsigned: protect overflow of map[char], getchar->EOF. Use ATTRIBUTE_UNUSE.

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This commit is contained in:
"Vladimir N. Oleynik" 2006-01-31 09:27:48 +00:00
parent cd98555dfa
commit 4ccd2b4697
1 changed files with 12 additions and 12 deletions
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24
shell/hush.c
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@ -233,20 +233,20 @@ struct variables {
/* globals, connect us to the outside world
* the first three support $?, $#, and $1 */
static char **global_argv;
static unsigned int global_argc;
static unsigned int last_return_code;
static int global_argc;
static int last_return_code;
extern char **environ; /* This is in <unistd.h>, but protected with __USE_GNU */
/* "globals" within this file */
static char *ifs;
static char map[256];
static unsigned char map[256];
static int fake_mode;
static int interactive;
static struct close_me *close_me_head;
static const char *cwd;
static struct pipe *job_list;
static unsigned int last_bg_pid;
static unsigned int last_jobid;
static int last_jobid;
static unsigned int shell_terminal;
static char *PS1;
static char *PS2;
@ -305,7 +305,7 @@ static void debug_printf(const char *format, ...)
va_end(args);
}
#else
static inline void debug_printf(const char *format, ...) { }
static inline void debug_printf(const char *format ATTRIBUTE_UNUSED, ...) { }
#endif
#define final_printf debug_printf
@ -472,7 +472,7 @@ static int builtin_cd(struct child_prog *child)
}
/* built-in 'env' handler */
static int builtin_env(struct child_prog *dummy)
static int builtin_env(struct child_prog *dummy ATTRIBUTE_UNUSED)
{
char **e = environ;
if (e == NULL) return EXIT_FAILURE;
@ -604,7 +604,7 @@ static int builtin_fg_bg(struct child_prog *child)
}
/* built-in 'help' handler */
static int builtin_help(struct child_prog *dummy)
static int builtin_help(struct child_prog *dummy ATTRIBUTE_UNUSED)
{
const struct built_in_command *x;
@ -620,7 +620,7 @@ static int builtin_help(struct child_prog *dummy)
}
/* built-in 'jobs' handler */
static int builtin_jobs(struct child_prog *child)
static int builtin_jobs(struct child_prog *child ATTRIBUTE_UNUSED)
{
struct pipe *job;
char *status_string;
@ -638,7 +638,7 @@ static int builtin_jobs(struct child_prog *child)
/* built-in 'pwd' handler */
static int builtin_pwd(struct child_prog *dummy)
static int builtin_pwd(struct child_prog *dummy ATTRIBUTE_UNUSED)
{
puts(set_cwd());
return EXIT_SUCCESS;
@ -2457,7 +2457,7 @@ int parse_string(o_string *dest, struct p_context *ctx, const char *src)
int parse_stream(o_string *dest, struct p_context *ctx,
struct in_str *input, int end_trigger)
{
unsigned int ch, m;
int ch, m;
int redir_fd;
redir_type redir_style;
int next;
@ -2616,8 +2616,8 @@ int parse_stream(o_string *dest, struct p_context *ctx,
static void mapset(const char *set, int code)
{
const char *s;
for (s=set; *s; s++) map[(int)*s] = code;
const unsigned char *s;
for (s = (const unsigned char *)set; *s; s++) map[(int)*s] = code;
}
static void update_ifs_map(void)