| 1 | --- a/gencode.c |
| 2 | +++ b/gencode.c |
| 3 | @@ -491,20 +491,6 @@ pcap_compile_nopcap(int snaplen_arg, int |
| 4 | } |
| 5 | |
| 6 | /* |
| 7 | - * Clean up a "struct bpf_program" by freeing all the memory allocated |
| 8 | - * in it. |
| 9 | - */ |
| 10 | -void |
| 11 | -pcap_freecode(struct bpf_program *program) |
| 12 | -{ |
| 13 | - program->bf_len = 0; |
| 14 | - if (program->bf_insns != NULL) { |
| 15 | - free((char *)program->bf_insns); |
| 16 | - program->bf_insns = NULL; |
| 17 | - } |
| 18 | -} |
| 19 | - |
| 20 | -/* |
| 21 | * Backpatch the blocks in 'list' to 'target'. The 'sense' field indicates |
| 22 | * which of the jt and jf fields has been resolved and which is a pointer |
| 23 | * back to another unresolved block (or nil). At least one of the fields |
| 24 | --- a/pcap.c |
| 25 | +++ b/pcap.c |
| 26 | @@ -748,6 +748,59 @@ static const u_char charmap[] = { |
| 27 | (u_char)'\374', (u_char)'\375', (u_char)'\376', (u_char)'\377', |
| 28 | }; |
| 29 | |
| 30 | +/* |
| 31 | + * Clean up a "struct bpf_program" by freeing all the memory allocated |
| 32 | + * in it. |
| 33 | + */ |
| 34 | +void |
| 35 | +pcap_freecode(struct bpf_program *program) |
| 36 | +{ |
| 37 | + program->bf_len = 0; |
| 38 | + if (program->bf_insns != NULL) { |
| 39 | + free((char *)program->bf_insns); |
| 40 | + program->bf_insns = NULL; |
| 41 | + } |
| 42 | +} |
| 43 | + |
| 44 | +/* |
| 45 | + * Make a copy of a BPF program and put it in the "fcode" member of |
| 46 | + * a "pcap_t". |
| 47 | + * |
| 48 | + * If we fail to allocate memory for the copy, fill in the "errbuf" |
| 49 | + * member of the "pcap_t" with an error message, and return -1; |
| 50 | + * otherwise, return 0. |
| 51 | + */ |
| 52 | +int |
| 53 | +install_bpf_program(pcap_t *p, struct bpf_program *fp) |
| 54 | +{ |
| 55 | + size_t prog_size; |
| 56 | + |
| 57 | + /* |
| 58 | + * Validate the program. |
| 59 | + */ |
| 60 | + if (!bpf_validate(fp->bf_insns, fp->bf_len)) { |
| 61 | + snprintf(p->errbuf, sizeof(p->errbuf), |
| 62 | + "BPF program is not valid"); |
| 63 | + return (-1); |
| 64 | + } |
| 65 | + |
| 66 | + /* |
| 67 | + * Free up any already installed program. |
| 68 | + */ |
| 69 | + pcap_freecode(&p->fcode); |
| 70 | + |
| 71 | + prog_size = sizeof(*fp->bf_insns) * fp->bf_len; |
| 72 | + p->fcode.bf_len = fp->bf_len; |
| 73 | + p->fcode.bf_insns = (struct bpf_insn *)malloc(prog_size); |
| 74 | + if (p->fcode.bf_insns == NULL) { |
| 75 | + snprintf(p->errbuf, sizeof(p->errbuf), |
| 76 | + "malloc: %s", pcap_strerror(errno)); |
| 77 | + return (-1); |
| 78 | + } |
| 79 | + memcpy(p->fcode.bf_insns, fp->bf_insns, prog_size); |
| 80 | + return (0); |
| 81 | +} |
| 82 | + |
| 83 | int |
| 84 | pcap_strcasecmp(const char *s1, const char *s2) |
| 85 | { |
| 86 | --- a/optimize.c |
| 87 | +++ b/optimize.c |
| 88 | @@ -2292,45 +2292,6 @@ icode_to_fcode(root, lenp) |
| 89 | return fp; |
| 90 | } |
| 91 | |
| 92 | -/* |
| 93 | - * Make a copy of a BPF program and put it in the "fcode" member of |
| 94 | - * a "pcap_t". |
| 95 | - * |
| 96 | - * If we fail to allocate memory for the copy, fill in the "errbuf" |
| 97 | - * member of the "pcap_t" with an error message, and return -1; |
| 98 | - * otherwise, return 0. |
| 99 | - */ |
| 100 | -int |
| 101 | -install_bpf_program(pcap_t *p, struct bpf_program *fp) |
| 102 | -{ |
| 103 | - size_t prog_size; |
| 104 | - |
| 105 | - /* |
| 106 | - * Validate the program. |
| 107 | - */ |
| 108 | - if (!bpf_validate(fp->bf_insns, fp->bf_len)) { |
| 109 | - snprintf(p->errbuf, sizeof(p->errbuf), |
| 110 | - "BPF program is not valid"); |
| 111 | - return (-1); |
| 112 | - } |
| 113 | - |
| 114 | - /* |
| 115 | - * Free up any already installed program. |
| 116 | - */ |
| 117 | - pcap_freecode(&p->fcode); |
| 118 | - |
| 119 | - prog_size = sizeof(*fp->bf_insns) * fp->bf_len; |
| 120 | - p->fcode.bf_len = fp->bf_len; |
| 121 | - p->fcode.bf_insns = (struct bpf_insn *)malloc(prog_size); |
| 122 | - if (p->fcode.bf_insns == NULL) { |
| 123 | - snprintf(p->errbuf, sizeof(p->errbuf), |
| 124 | - "malloc: %s", pcap_strerror(errno)); |
| 125 | - return (-1); |
| 126 | - } |
| 127 | - memcpy(p->fcode.bf_insns, fp->bf_insns, prog_size); |
| 128 | - return (0); |
| 129 | -} |
| 130 | - |
| 131 | #ifdef BDEBUG |
| 132 | static void |
| 133 | opt_dump(root) |
| 134 | |
