diff options
| -rw-r--r-- | tools/lib/traceevent/event-parse.c | 58 |
1 files changed, 31 insertions, 27 deletions
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index acf40381b48b..2e05d567353e 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -827,9 +827,9 @@ static enum event_type __read_token(char **tok) switch (type) { case EVENT_NEWLINE: case EVENT_DELIM: - *tok = malloc_or_die(2); - (*tok)[0] = ch; - (*tok)[1] = 0; + if (asprintf(tok, "%c", ch) < 0) + return EVENT_ERROR; + return type; case EVENT_OP: @@ -2777,10 +2777,8 @@ static int event_read_print(struct event_format *event) if (type == EVENT_DQUOTE) { char *cat; - cat = malloc_or_die(strlen(event->print_fmt.format) + - strlen(token) + 1); - strcpy(cat, event->print_fmt.format); - strcat(cat, token); + if (asprintf(&cat, "%s%s", event->print_fmt.format, token) < 0) + goto fail; free_token(token); free_token(event->print_fmt.format); event->print_fmt.format = NULL; @@ -3524,6 +3522,18 @@ process_defined_func(struct trace_seq *s, void *data, int size, return ret; } +static void free_args(struct print_arg *args) +{ + struct print_arg *next; + + while (args) { + next = args->next; + + free_arg(args); + args = next; + } +} + static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struct event_format *event) { struct pevent *pevent = event->pevent; @@ -3559,8 +3569,9 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc next = &arg->next; arg->type = PRINT_ATOM; - arg->atom.atom = malloc_or_die(32); - sprintf(arg->atom.atom, "%lld", ip); + + if (asprintf(&arg->atom.atom, "%lld", ip) < 0) + goto out_free; /* skip the first "%pf : " */ for (ptr = fmt + 6, bptr = data + field->offset; @@ -3617,8 +3628,10 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc arg = alloc_arg(); arg->next = NULL; arg->type = PRINT_ATOM; - arg->atom.atom = malloc_or_die(32); - sprintf(arg->atom.atom, "%lld", val); + if (asprintf(&arg->atom.atom, "%lld", val) < 0) { + free(arg); + goto out_free; + } *next = arg; next = &arg->next; /* @@ -3646,18 +3659,10 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc } return args; -} - -static void free_args(struct print_arg *args) -{ - struct print_arg *next; - - while (args) { - next = args->next; - free_arg(args); - args = next; - } +out_free: + free_args(args); + return NULL; } static char * @@ -3684,9 +3689,8 @@ get_bprint_format(void *data, int size __maybe_unused, printk = find_printk(pevent, addr); if (!printk) { - format = malloc_or_die(45); - sprintf(format, "%%pf : (NO FORMAT FOUND at %llx)\n", - addr); + if (asprintf(&format, "%%pf : (NO FORMAT FOUND at %llx)\n", addr) < 0) + return NULL; return format; } @@ -3694,8 +3698,8 @@ get_bprint_format(void *data, int size __maybe_unused, /* Remove any quotes. */ if (*p == '"') p++; - format = malloc_or_die(strlen(p) + 10); - sprintf(format, "%s : %s", "%pf", p); + if (asprintf(&format, "%s : %s", "%pf", p) < 0) + return NULL; /* remove ending quotes and new line since we will add one too */ p = format + strlen(format) - 1; if (*p == '"') |