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--- examples/pairs.c.orig 2019-06-30 22:57:59.603524000 +0300
+++ examples/pairs.c 2019-06-30 23:06:55.659597000 +0300
@@ -54,6 +54,18 @@
#include <string.h>
#include "prng.h"
+static void
+safe_gets(char *buf, int size)
+{
+ size_t len;
+
+ if (fgets(buf, size, stdin) == NULL)
+ return;
+ len = strlen(buf);
+ if (len && buf[len - 1] == '\n')
+ buf[len - 1] = '\0';
+}
+
struct prng_struct *generator;
char outfile[200] = "pairs.out";
FILE *out;
@@ -71,7 +83,7 @@
else
{
printf("\nGenerator ? ");
- gets(input);
+ safe_gets(input, sizeof(input));
g = prng_new(input);
}
@@ -88,7 +100,7 @@
{
npairs = 10000;
printf("\nHow many pairs [%d] ",npairs);
- gets(input);
+ safe_gets(input, sizeof(input));
if (input[0] != 0 ) npairs = atoi(input);
}
@@ -97,7 +109,7 @@
else
{
printf("Output filename ('-' for stdout) ? [%s] ",outfile);
- gets(input);
+ safe_gets(input, sizeof(input));
if (input[0] != 0 ) strncpy(outfile,input,100);
}
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