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desc.c: use xsnprintf instead of sprintf

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* desc.c: Include "xstring.h".
(decode_select): Replace sprintf with xsnprintf.
This commit is contained in:
Дмитрий Левин 2018-01-06 01:45:16 +00:00
parent 6e67a2b71e
commit d9175ac5ce
1 changed files with 10 additions and 3 deletions
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13
desc.c
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@ -30,6 +30,7 @@
*/
#include "defs.h"
#include "xstring.h"
SYS_FUNC(close)
{
@ -157,7 +158,9 @@ decode_select(struct tcb *const tcp, const kernel_ulong_t *const args,
/* +2 chars needed at the end: ']',NUL */
if (outptr < end_outstr - (sizeof(", except [") + sizeof(int)*3 + 2)) {
if (first) {
outptr += sprintf(outptr, "%s%s [%u",
outptr += xsnprintf(outptr,
sizeof(outstr) - (outptr - outstr),
"%s%s [%u",
sep,
i == 0 ? "in" : i == 1 ? "out" : "except",
j
@ -165,7 +168,9 @@ decode_select(struct tcb *const tcp, const kernel_ulong_t *const args,
first = 0;
sep = ", ";
} else {
outptr += sprintf(outptr, " %u", j);
outptr += xsnprintf(outptr,
sizeof(outstr) - (outptr - outstr),
" %u", j);
}
}
if (--ready_fds == 0)
@ -179,7 +184,9 @@ decode_select(struct tcb *const tcp, const kernel_ulong_t *const args,
if (args[4]) {
const char *str = sprint_tv_ts(tcp, args[4]);
if (outptr + sizeof("left ") + strlen(sep) + strlen(str) < end_outstr) {
outptr += sprintf(outptr, "%sleft %s", sep, str);
outptr += xsnprintf(outptr,
sizeof(outstr) - (outptr - outstr),
"%sleft %s", sep, str);
}
}
*outptr = '\0';