~mdw / qmail / blame
| Commit | Line | Data |
|---|---|---|
| 2117e02e MW |
1 | #include "readwrite.h" |
| 2 | #include "open.h" | |
| 3 | #include "getln.h" | |
| 4 | #include "stralloc.h" | |
| 5 | #include "substdio.h" | |
| 6 | #include "error.h" | |
| 7 | #include "control.h" | |
| 8 | #include "alloc.h" | |
| 9 | #include "scan.h" | |
| 10 | ||
| 11 | static char inbuf[64]; | |
| 12 | static stralloc line = {0}; | |
| 13 | static stralloc me = {0}; | |
| 14 | static int meok = 0; | |
| 15 | ||
| 16 | static void striptrailingwhitespace(sa) | |
| 17 | stralloc *sa; | |
| 18 | { | |
| 19 | while (sa->len > 0) | |
| 20 | switch(sa->s[sa->len - 1]) | |
| 21 | { | |
| 22 | case '\n': case ' ': case '\t': | |
| 23 | --sa->len; | |
| 24 | break; | |
| 25 | default: | |
| 26 | return; | |
| 27 | } | |
| 28 | } | |
| 29 | ||
| 30 | int control_init() | |
| 31 | { | |
| 32 | int r; | |
| 33 | r = control_readline(&me,"control/me"); | |
| 34 | if (r == 1) meok = 1; | |
| 35 | return r; | |
| 36 | } | |
| 37 | ||
| 38 | int control_rldef(sa,fn,flagme,def) | |
| 39 | stralloc *sa; | |
| 40 | char *fn; | |
| 41 | int flagme; | |
| 42 | char *def; | |
| 43 | { | |
| 44 | int r; | |
| 45 | r = control_readline(sa,fn); | |
| 46 | if (r) return r; | |
| 47 | if (flagme) if (meok) return stralloc_copy(sa,&me) ? 1 : -1; | |
| 48 | if (def) return stralloc_copys(sa,def) ? 1 : -1; | |
| 49 | return r; | |
| 50 | } | |
| 51 | ||
| 52 | int control_readline(sa,fn) | |
| 53 | stralloc *sa; | |
| 54 | char *fn; | |
| 55 | { | |
| 56 | substdio ss; | |
| 57 | int fd; | |
| 58 | int match; | |
| 59 | ||
| 60 | fd = open_read(fn); | |
| 61 | if (fd == -1) { if (errno == error_noent) return 0; return -1; } | |
| 62 | ||
| 63 | substdio_fdbuf(&ss,read,fd,inbuf,sizeof(inbuf)); | |
| 64 | ||
| 65 | if (getln(&ss,sa,&match,'\n') == -1) { close(fd); return -1; } | |
| 66 | ||
| 67 | striptrailingwhitespace(sa); | |
| 68 | close(fd); | |
| 69 | return 1; | |
| 70 | } | |
| 71 | ||
| 72 | int control_readint(i,fn) | |
| 73 | int *i; | |
| 74 | char *fn; | |
| 75 | { | |
| 76 | unsigned long u; | |
| 77 | switch(control_readline(&line,fn)) | |
| 78 | { | |
| 79 | case 0: return 0; | |
| 80 | case -1: return -1; | |
| 81 | } | |
| 212b6f5d MW |
82 | if (!stralloc_0(&line)) return -1; |
| 83 | if (!scan_ulong(line.s,&u)) return 0; | |
| 2117e02e MW |
84 | *i = u; |
| 85 | return 1; | |
| 86 | } | |
| 87 | ||
| 88 | int control_readfile(sa,fn,flagme) | |
| 89 | stralloc *sa; | |
| 90 | char *fn; | |
| 91 | int flagme; | |
| 92 | { | |
| 93 | substdio ss; | |
| 94 | int fd; | |
| 95 | int match; | |
| 96 | ||
| 97 | if (!stralloc_copys(sa,"")) return -1; | |
| 98 | ||
| 99 | fd = open_read(fn); | |
| 100 | if (fd == -1) | |
| 101 | { | |
| 102 | if (errno == error_noent) | |
| 103 | { | |
| 104 | if (flagme && meok) | |
| 105 | { | |
| 106 | if (!stralloc_copy(sa,&me)) return -1; | |
| 107 | if (!stralloc_0(sa)) return -1; | |
| 108 | return 1; | |
| 109 | } | |
| 110 | return 0; | |
| 111 | } | |
| 112 | return -1; | |
| 113 | } | |
| 114 | ||
| 115 | substdio_fdbuf(&ss,read,fd,inbuf,sizeof(inbuf)); | |
| 116 | ||
| 117 | for (;;) | |
| 118 | { | |
| 119 | if (getln(&ss,&line,&match,'\n') == -1) break; | |
| 120 | if (!match && !line.len) { close(fd); return 1; } | |
| 121 | striptrailingwhitespace(&line); | |
| 122 | if (!stralloc_0(&line)) break; | |
| 123 | if (line.s[0]) | |
| 124 | if (line.s[0] != '#') | |
| 125 | if (!stralloc_cat(sa,&line)) break; | |
| 126 | if (!match) { close(fd); return 1; } | |
| 127 | } | |
| 128 | close(fd); | |
| 129 | return -1; | |
| 130 | } |