374330e2 |
1 | #include <windows.h> |
2 | #include <stdio.h> |
3 | #include <stdlib.h> |
4 | #include "putty.h" |
5 | |
6 | /* My own versions of malloc, realloc and free. Because I want malloc and |
7 | * realloc to bomb out and exit the program if they run out of memory, |
8 | * realloc to reliably call malloc if passed a NULL pointer, and free |
9 | * to reliably do nothing if passed a NULL pointer. Of course we can also |
10 | * put trace printouts in, if we need to. */ |
11 | |
12 | #ifdef MALLOC_LOG |
13 | static FILE *fp = NULL; |
14 | |
15 | void mlog(char *file, int line) { |
c662dbc0 |
16 | if (!fp) { |
374330e2 |
17 | fp = fopen("putty_mem.log", "w"); |
c662dbc0 |
18 | setvbuf(fp, NULL, _IONBF, BUFSIZ); |
19 | } |
374330e2 |
20 | if (fp) |
21 | fprintf (fp, "%s:%d: ", file, line); |
22 | } |
23 | #endif |
24 | |
25 | void *safemalloc(size_t size) { |
26 | void *p = malloc (size); |
27 | if (!p) { |
28 | MessageBox(NULL, "Out of memory!", "PuTTY Fatal Error", |
29 | MB_SYSTEMMODAL | MB_ICONERROR | MB_OK); |
30 | exit(1); |
31 | } |
32 | #ifdef MALLOC_LOG |
33 | if (fp) |
34 | fprintf(fp, "malloc(%d) returns %p\n", size, p); |
35 | #endif |
36 | return p; |
37 | } |
38 | |
39 | void *saferealloc(void *ptr, size_t size) { |
40 | void *p; |
41 | if (!ptr) |
42 | p = malloc (size); |
43 | else |
44 | p = realloc (ptr, size); |
45 | if (!p) { |
46 | MessageBox(NULL, "Out of memory!", "PuTTY Fatal Error", |
47 | MB_SYSTEMMODAL | MB_ICONERROR | MB_OK); |
48 | exit(1); |
49 | } |
50 | #ifdef MALLOC_LOG |
51 | if (fp) |
52 | fprintf(fp, "realloc(%p,%d) returns %p\n", ptr, size, p); |
53 | #endif |
54 | return p; |
55 | } |
56 | |
57 | void safefree(void *ptr) { |
58 | if (ptr) { |
59 | #ifdef MALLOC_LOG |
60 | if (fp) |
61 | fprintf(fp, "free(%p)\n", ptr); |
62 | #endif |
63 | free (ptr); |
64 | } |
65 | #ifdef MALLOC_LOG |
66 | else if (fp) |
67 | fprintf(fp, "freeing null pointer - no action taken\n"); |
68 | #endif |
69 | } |
c82bda52 |
70 | |
71 | #ifdef DEBUG |
72 | static FILE *debug_fp = NULL; |
73 | static int debug_got_console = 0; |
74 | |
75 | void dprintf(char *fmt, ...) { |
76 | char buf[2048]; |
77 | DWORD dw; |
78 | va_list ap; |
79 | |
80 | if (!debug_got_console) { |
81 | AllocConsole(); |
82 | debug_got_console = 1; |
83 | } |
84 | if (!debug_fp) { |
85 | debug_fp = fopen("debug.log", "w"); |
86 | } |
87 | |
88 | va_start(ap, fmt); |
89 | vsprintf(buf, fmt, ap); |
90 | WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), buf, strlen(buf), &dw, NULL); |
91 | fputs(buf, debug_fp); |
92 | fflush(debug_fp); |
93 | va_end(ap); |
94 | } |
95 | #endif |