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pnmdec.c: use snprintf instead of sprintf

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this is consistent with the rest of the example code

Change-Id: Id4c02e16be84fbe21ddc74c9049d8cbda2d875a8
This commit is contained in:
James Zern 2022-11-15 17:10:26 -08:00
parent 3f73e8f7ac
commit fad0ece7ed
1 changed files with 6 additions and 1 deletions
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7
imageio/pnmdec.c
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@ -20,6 +20,10 @@
#include "webp/encode.h" #include "webp/encode.h"
#include "./imageio_util.h" #include "./imageio_util.h"
#if defined(_MSC_VER) && _MSC_VER < 1900
#define snprintf _snprintf
#endif
typedef enum { typedef enum {
WIDTH_FLAG = 1 << 0, WIDTH_FLAG = 1 << 0,
HEIGHT_FLAG = 1 << 1, HEIGHT_FLAG = 1 << 1,
@ -111,8 +115,9 @@ static size_t ReadPAMFields(PNMInfo* const info, size_t off) {
break; break;
} else { } else {
static const char kEllipsis[] = " ..."; static const char kEllipsis[] = " ...";
const size_t kLen = strlen(kEllipsis) + 1; // +1 = trailing \0
int i; int i;
if (out_size > 20) sprintf(out + 20 - strlen(kEllipsis), kEllipsis); if (out_size > 20) snprintf(out + 20 - kLen, kLen, kEllipsis);
for (i = 0; i < (int)strlen(out); ++i) { for (i = 0; i < (int)strlen(out); ++i) {
// isprint() might trigger a "char-subscripts" warning if given a char. // isprint() might trigger a "char-subscripts" warning if given a char.
if (!isprint((int)out[i])) out[i] = ' '; if (!isprint((int)out[i])) out[i] = ' ';