| 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 | } |