annotate f-demime/ptext_out.c @ 2:1857d0d5a7bd

f-demime: fix parsing of Content-* headers
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 06 May 2023 06:33:26 +0000
parents 7e0d08176f32
children a92d0d59b669
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * This module implements transformations that are specific to text/plain.
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 */
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 #include <stdio.h>
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <stdlib.h>
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <string.h>
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <strings.h>
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include "defs.h"
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 extern FILE *tempfile;
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 extern int ptext_has_backslash, ptext_has_linesplit;
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 extern unsigned mp_nest_level;
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 extern char mp_boundaries[MAX_MP_NESTING][MAX_MP_BOUNDARY+1];
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 void
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 ptext_mark_transform(base_xform)
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 char *base_xform;
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 {
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 printf("X-Fdemime-Transform: %s", base_xform);
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 if (ptext_has_backslash)
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 fputs(", double-backslash", stdout);
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 if (ptext_has_linesplit)
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 fputs(", line-split", stdout);
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 putchar('\n');
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 }
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 static int
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 boundary_hit(line)
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 char *line;
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 {
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 unsigned lev, bndlen;
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 char *bnd;
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 if (line[0] != '-' || line[1] != '-')
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 return(0);
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 for (lev = 0; lev < mp_nest_level; lev++) {
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 bnd = mp_boundaries[lev];
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 bndlen = strlen(bnd);
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 if (strncmp(line+2, bnd, bndlen))
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 continue;
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 return(1);
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 }
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 return(0);
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 }
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 void
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 ptext_emit_output()
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 {
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 char line[LINE_BUF_SIZE];
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 rewind(tempfile);
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 while (fgets(line, sizeof line, tempfile)) {
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 if (!strncmp(line, "From ", 5) || boundary_hit(line) ||
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 !strcmp(line, ".\n")) {
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 putchar('\\');
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 putchar('&');
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 }
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 fputs(line, stdout);
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 }
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 fclose(tempfile);
7e0d08176f32 f-demime starting code
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 }