Commit | Line | Data |
---|---|---|
f8beb284 MW |
1 | /*$Id: searchlog.c,v 1.6 1999/10/09 14:22:38 lindberg Exp $*/ |
2 | /*$Name: ezmlm-idx-040 $*/ | |
3 | #include "case.h" | |
4 | #include "scan.h" | |
5 | #include "stralloc.h" | |
6 | #include "str.h" | |
7 | #include "open.h" | |
8 | #include "datetime.h" | |
9 | #include "date822fmt.h" | |
10 | #include "substdio.h" | |
11 | #include "readwrite.h" | |
12 | #include "strerr.h" | |
13 | #include "error.h" | |
14 | #include "errtxt.h" | |
15 | #include "subscribe.h" | |
16 | ||
17 | static stralloc line = {0}; | |
18 | static stralloc outline = {0}; | |
19 | static char date[DATE822FMT]; | |
20 | static datetime_sec when; | |
21 | static struct datetime dt; | |
22 | static substdio ssin; | |
23 | static char inbuf[256]; | |
24 | ||
25 | static void die_nomem(fatal) | |
26 | char *fatal; | |
27 | { | |
28 | strerr_die2x(100,fatal,ERR_NOMEM); | |
29 | } | |
30 | ||
31 | static void lineout(subwrite,fatal) | |
32 | int subwrite(); | |
33 | char *fatal; | |
34 | { | |
35 | (void) scan_ulong(line.s,&when); | |
36 | datetime_tai(&dt,when); /* there is always at least a '\n' */ | |
37 | if (!stralloc_copyb(&outline,date,date822fmt(date,&dt) - 1)) | |
38 | die_nomem(fatal); | |
39 | if (!stralloc_cats(&outline,": ")) die_nomem(fatal); | |
40 | if (!stralloc_catb(&outline,line.s,line.len - 1)) die_nomem(fatal); | |
41 | if (subwrite(outline.s,outline.len) == -1) | |
42 | strerr_die3x(111,fatal,ERR_WRITE,"output"); | |
43 | return; | |
44 | } | |
45 | ||
46 | void searchlog(dir,search,subwrite,fatal) | |
47 | /* opens dir/Log, and outputs via subwrite(s,len) any line that matches */ | |
48 | /* search. A '_' is search is a wildcard. Any other non-alphanum/'.' char */ | |
49 | /* is replaced by a '_' */ | |
50 | ||
51 | char *dir; /* work directory */ | |
52 | char *search; /* search string */ | |
53 | int subwrite(); /* output fxn */ | |
54 | char *fatal; /* fatal */ | |
55 | { | |
56 | ||
57 | register unsigned char x; | |
58 | register unsigned char y; | |
59 | register unsigned char *cp; | |
60 | register unsigned char *cpsearch; | |
61 | unsigned register char *cps; | |
62 | unsigned register char ch; | |
63 | unsigned char *cplast, *cpline; | |
64 | unsigned int searchlen; | |
65 | int fd,match; | |
66 | ||
67 | searchlen = str_len(search); | |
68 | case_lowerb(search,searchlen); | |
69 | cps = (unsigned char *) search; | |
70 | while ((ch = *(cps++))) { /* search is potentially hostile */ | |
71 | if (ch >= 'a' && ch <= 'z') continue; | |
72 | if (ch >= '0' && ch <= '9') continue; | |
73 | if (ch == '.' || ch == '_') continue; | |
74 | *(cps - 1) = '_'; /* will [also] match char specified */ | |
75 | } | |
76 | ||
77 | if (!stralloc_copys(&line,dir)) die_nomem(fatal); | |
78 | if (!stralloc_cats(&line,"/Log")) die_nomem(fatal); | |
79 | if (!stralloc_0(&line)) die_nomem(fatal); | |
80 | fd = open_read(line.s); | |
81 | if (fd == -1) | |
82 | if (errno != error_noent) | |
83 | strerr_die4sys(111,fatal,ERR_OPEN,line.s,": "); | |
84 | else | |
85 | strerr_die3x(100,fatal,line.s,ERR_NOEXIST); | |
86 | substdio_fdbuf(&ssin,read,fd,inbuf,sizeof(inbuf)); | |
87 | ||
88 | for (;;) { | |
89 | if (getln(&ssin,&line,&match,'\n') == -1) | |
90 | strerr_die2sys(111,fatal,ERR_READ_INPUT); | |
91 | if (!match) break; | |
92 | if (!searchlen) { | |
93 | lineout(subwrite,fatal); | |
94 | } else { /* simple case-insensitive search */ | |
95 | cpline = (unsigned char *) line.s - 1; | |
96 | cplast = cpline + line.len - searchlen; /* line has \0 at the end */ | |
97 | while ((cp = ++cpline) <= cplast) { | |
98 | cpsearch = (unsigned char *) search; | |
99 | for (;;) { | |
100 | x = *cpsearch++; | |
101 | if (!x) break; | |
102 | y = *cp++ - 'A'; | |
103 | if (y <= 'Z' - 'A') y += 'a'; else y += 'A'; | |
104 | if (x != y && x != '_') break; /* '_' = wildcard */ | |
105 | } | |
106 | if (!x) { | |
107 | lineout(subwrite,fatal); | |
108 | break; | |
109 | } | |
110 | } | |
111 | } | |
112 | } | |
113 | close(fd); | |
114 | } |