Use strlcpy instead of strncpy in mailmap.c
[git] / mailmap.c
1 #include "cache.h"
2 #include "path-list.h"
3
4 int read_mailmap(struct path_list *map, const char *filename, char **repo_abbrev)
5 {
6         char buffer[1024];
7         FILE *f = fopen(filename, "r");
8
9         if (f == NULL)
10                 return 1;
11         while (fgets(buffer, sizeof(buffer), f) != NULL) {
12                 char *end_of_name, *left_bracket, *right_bracket;
13                 char *name, *email;
14                 int i;
15                 if (buffer[0] == '#') {
16                         static const char abbrev[] = "# repo-abbrev:";
17                         int abblen = sizeof(abbrev) - 1;
18                         int len = strlen(buffer);
19
20                         if (len && buffer[len - 1] == '\n')
21                                 buffer[--len] = 0;
22                         if (!strncmp(buffer, abbrev, abblen)) {
23                                 char *cp;
24
25                                 if (repo_abbrev)
26                                         free(*repo_abbrev);
27                                 *repo_abbrev = xmalloc(len);
28
29                                 for (cp = buffer + abblen; isspace(*cp); cp++)
30                                         ; /* nothing */
31                                 strcpy(*repo_abbrev, cp);
32                         }
33                         continue;
34                 }
35                 if ((left_bracket = strchr(buffer, '<')) == NULL)
36                         continue;
37                 if ((right_bracket = strchr(left_bracket + 1, '>')) == NULL)
38                         continue;
39                 if (right_bracket == left_bracket + 1)
40                         continue;
41                 for (end_of_name = left_bracket; end_of_name != buffer
42                                 && isspace(end_of_name[-1]); end_of_name--)
43                         /* keep on looking */
44                 if (end_of_name == buffer)
45                         continue;
46                 name = xmalloc(end_of_name - buffer + 1);
47                 strlcpy(name, buffer, end_of_name - buffer + 1);
48                 email = xmalloc(right_bracket - left_bracket);
49                 for (i = 0; i < right_bracket - left_bracket - 1; i++)
50                         email[i] = tolower(left_bracket[i + 1]);
51                 email[right_bracket - left_bracket - 1] = '\0';
52                 path_list_insert(email, map)->util = name;
53         }
54         fclose(f);
55         return 0;
56 }
57
58 int map_email(struct path_list *map, const char *email, char *name, int maxlen)
59 {
60         char *p;
61         struct path_list_item *item;
62         char buf[1024], *mailbuf;
63         int i;
64
65         /* autocomplete common developers */
66         p = strchr(email, '>');
67         if (!p)
68                 return 0;
69         if (p - email + 1 < sizeof(buf))
70                 mailbuf = buf;
71         else
72                 mailbuf = xmalloc(p - email + 1);
73
74         /* downcase the email address */
75         for (i = 0; i < p - email; i++)
76                 mailbuf[i] = tolower(email[i]);
77         mailbuf[i] = 0;
78         item = path_list_lookup(mailbuf, map);
79         if (mailbuf != buf)
80                 free(mailbuf);
81         if (item != NULL) {
82                 const char *realname = (const char *)item->util;
83                 strlcpy(name, realname, maxlen);
84                 return 1;
85         }
86         return 0;
87 }
88