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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /openssl/demos/tunala/breakage.c
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Diffstat (limited to 'openssl/demos/tunala/breakage.c')
-rw-r--r--openssl/demos/tunala/breakage.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/openssl/demos/tunala/breakage.c b/openssl/demos/tunala/breakage.c
new file mode 100644
index 000000000..dcdd64b0e
--- /dev/null
+++ b/openssl/demos/tunala/breakage.c
@@ -0,0 +1,66 @@
+#include "tunala.h"
+
+int int_strtoul(const char *str, unsigned long *val)
+{
+#ifdef HAVE_STRTOUL
+ char *tmp;
+ unsigned long ret = strtoul(str, &tmp, 10);
+ if((str == tmp) || (*tmp != '\0'))
+ /* The value didn't parse cleanly */
+ return 0;
+ if(ret == ULONG_MAX)
+ /* We hit a limit */
+ return 0;
+ *val = ret;
+ return 1;
+#else
+ char buf[2];
+ unsigned long ret = 0;
+ buf[1] = '\0';
+ if(str == '\0')
+ /* An empty string ... */
+ return 0;
+ while(*str != '\0') {
+ /* We have to multiply 'ret' by 10 before absorbing the next
+ * digit. If this will overflow, catch it now. */
+ if(ret && (((ULONG_MAX + 10) / ret) < 10))
+ return 0;
+ ret *= 10;
+ if(!isdigit(*str))
+ return 0;
+ buf[0] = *str;
+ ret += atoi(buf);
+ str++;
+ }
+ *val = ret;
+ return 1;
+#endif
+}
+
+#ifndef HAVE_STRSTR
+char *int_strstr(const char *haystack, const char *needle)
+{
+ const char *sub_haystack = haystack, *sub_needle = needle;
+ unsigned int offset = 0;
+ if(!needle)
+ return haystack;
+ if(!haystack)
+ return NULL;
+ while((*sub_haystack != '\0') && (*sub_needle != '\0')) {
+ if(sub_haystack[offset] == sub_needle) {
+ /* sub_haystack is still a candidate */
+ offset++;
+ sub_needle++;
+ } else {
+ /* sub_haystack is no longer a possibility */
+ sub_haystack++;
+ offset = 0;
+ sub_needle = needle;
+ }
+ }
+ if(*sub_haystack == '\0')
+ /* Found nothing */
+ return NULL;
+ return sub_haystack;
+}
+#endif