cdebconf/src/rfc822.c

#include <stdio.h>
#include <ctype.h>

#include "common.h"
#include "rfc822.h"
#include "strutl.h"


static char *unescapestr(const char *in)
{
    static char buf[8192];
    if (in == 0) return 0;
    strunescape(in, buf, sizeof(buf), 0);
    return buf;
}

/*
 * Function: rfc822db_parse_stanza
 * Input: a FILE pointer to an open readable file containing a stanza in rfc822 
 *    format.
 * Output: a pointer to a dynamically allocated rfc822_header structure
 * Description: parse a stanza from file into the returned header struct
 * Assumptions: no lines are over 8192 bytes long.
 */

struct rfc822_header* rfc822_parse_stanza(FILE *file)
{
    struct rfc822_header *head, **tail, *cur;
    char buf[8192];

    head = NULL;
    tail = &head;
    cur = NULL;

    /*    fprintf(stderr,"rfc822db_parse_stanza(file)\n");*/
    while (fgets(buf, sizeof(buf), file))
    {
        char *tmp = buf;

        if (*tmp == '\n')
            break;

        CHOMP(buf);

        if (isspace(*tmp))
        {
            /* continuation line, just append it */
            int len;

            if (cur == NULL)
                break; /* should report an error here */

            len = strlen(cur->value) + strlen(tmp) + 2;

            cur->value = realloc(cur->value, len);
            strvacat(cur->value, len, "\n", tmp, NULL);
        } 
        else 
        {
            while (*tmp != 0 && *tmp != ':')
                tmp++;
            *tmp++ = '\0';

            cur = NEW(struct rfc822_header);
            if (cur == NULL)
                return NULL;
            memset(cur, '\0',sizeof(struct rfc822_header));    

            cur->header = strdup(buf);

            while (isspace(*tmp))
                tmp++;

            cur->value = strdup(unescapestr(tmp));

            *tail = cur;
            tail = &cur->next;
        }
    }

    return head;
}


char *rfc822_header_lookup(struct rfc822_header *list, const char* key)
{
/*    fprintf(stderr,"rfc822db_header_lookup(list,key=%s)\n",key);*/
    while (list && (strcasecmp(key, list->header) != 0))
        list = list->next;
    if (!list)
        return NULL;
/*    fprintf(stderr,"rfc822db_header_lookup returning: '%s'\n", list->value);*/
    return list->value;
}
1	tfheen	1688	#include <stdio.h>
2			#include <ctype.h>
3
4			#include "common.h"
5			#include "rfc822.h"
6			#include "strutl.h"
7
8
9			static char unescapestr(const char in)
10			{
11			static char buf[8192];
12			if (in == 0) return 0;
13			strunescape(in, buf, sizeof(buf), 0);
14			return buf;
15			}
16
17			/*
18	cjwatson	18257	* Function: rfc822db_parse_stanza
19	tfheen	1688	* Input: a FILE pointer to an open readable file containing a stanza in rfc822
20			* format.
21			* Output: a pointer to a dynamically allocated rfc822_header structure
22			* Description: parse a stanza from file into the returned header struct
23			* Assumptions: no lines are over 8192 bytes long.
24			*/
25
26			struct rfc822_header* rfc822_parse_stanza(FILE *file)
27			{
28			struct rfc822_header head, tail, cur;
29			char buf[8192];
30
31			head = NULL;
32			tail = &head;
33			cur = NULL;
34
35			/* fprintf(stderr,"rfc822db_parse_stanza(file)\n");*/
36			while (fgets(buf, sizeof(buf), file))
37			{
38			char *tmp = buf;
39
40			if (*tmp == '\n')
41			break;
42
43			CHOMP(buf);
44
45			if (isspace(*tmp))
46			{
47			/* continuation line, just append it */
48			int len;
49
50			if (cur == NULL)
51			break; /* should report an error here */
52
53			len = strlen(cur->value) + strlen(tmp) + 2;
54
55			cur->value = realloc(cur->value, len);
56			strvacat(cur->value, len, "\n", tmp, NULL);
57			}
58			else
59			{
60			while (tmp != 0 && tmp != ':')
61			tmp++;
62			*tmp++ = '\0';
63
64			cur = NEW(struct rfc822_header);
65			if (cur == NULL)
66			return NULL;
67			memset(cur, '\0',sizeof(struct rfc822_header));
68
69			cur->header = strdup(buf);
70
71			while (isspace(*tmp))
72			tmp++;
73
74			cur->value = strdup(unescapestr(tmp));
75
76			*tail = cur;
77			tail = &cur->next;
78			}
79			}
80
81			return head;
82			}
83
84
85			char rfc822_header_lookup(struct rfc822_header list, const char* key)
86			{
87			/* fprintf(stderr,"rfc822db_header_lookup(list,key=%s)\n",key);*/
88			while (list && (strcasecmp(key, list->header) != 0))
89			list = list->next;
90			if (!list)
91			return NULL;
92			/* fprintf(stderr,"rfc822db_header_lookup returning: '%s'\n", list->value);*/
93			return list->value;
94			}