36 lines
938 B
Diff
36 lines
938 B
Diff
Index: hashalot-0.3/hashalot.c
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===================================================================
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--- hashalot-0.3.orig/hashalot.c
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+++ hashalot-0.3/hashalot.c
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@@ -34,6 +34,7 @@
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#include "sha512.h"
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#define PASSWDBUFFLEN 130
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+#define MAXHASHLEN (ULONG_MAX/2 - 2)
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typedef int (*phash_func_t)(char dest[], size_t dest_len, const char src[], size_t src_len);
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@@ -182,8 +183,7 @@ static void *
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xmalloc (size_t size) {
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void *p;
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- if (size == 0)
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- return NULL;
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+ assert(size != 0);
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p = malloc(size);
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if (p == NULL) {
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@@ -242,6 +242,12 @@ main(int argc, char *argv[])
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show_usage(argv[0]);
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exit(EXIT_FAILURE);
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}
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+ if (hashlen >= MAXHASHLEN) {
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+ fprintf(stderr,
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+ "please supply a value smaller than %lu for the -n option\n",
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+ MAXHASHLEN);
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+ exit(EXIT_FAILURE);
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+ }
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break;
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case 's':
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salt = optarg;
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