| 1 | /* =============================================================== */ |
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| 2 | /* */ |
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| 3 | /* File : adtcp.c */ |
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| 4 | /* Purpose : arb_tcp.dat handling */ |
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| 5 | /* */ |
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| 6 | /* Coded by Ralf Westram (coder@reallysoft.de) in April 2007 */ |
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| 7 | /* Institute of Microbiology (Technical University Munich) */ |
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| 8 | /* www.arb-home.de */ |
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| 9 | /* =============================================================== */ |
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| 10 | |
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| 11 | #include <stdio.h> |
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| 12 | #include <stdlib.h> |
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| 13 | #include <string.h> |
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| 14 | #include <time.h> |
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| 15 | #include <sys/stat.h> |
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| 16 | |
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| 17 | #include "adlocal.h" |
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| 18 | #include "arbdbt.h" |
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| 19 | |
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| 20 | #if defined(DEBUG) |
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| 21 | /* #define DUMP_ATD_ACCESS */ |
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| 22 | #endif /* DEBUG */ |
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| 23 | |
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| 24 | /* ------------------------------------------------------------ */ |
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| 25 | /* Data representing current content of arb_tcp.dat */ |
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| 26 | |
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| 27 | static GB_ULONG ATD_modtime = -1; /* modification time of read-in arb_tcp.dat */ |
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| 28 | static char *ATD_filename = 0; /* pathname of loaded arb_tcp.dat */ |
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| 29 | |
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| 30 | static char **ATD_content = 0; /* zero-pointer terminated array of multi-separated strings |
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| 31 | * (strings have same format as the result of |
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| 32 | * GBS_read_arb_tcp(), but also contain the first element, |
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| 33 | * i.e. the server id) |
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| 34 | */ |
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| 35 | |
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| 36 | /* ------------------------------------------------------------ */ |
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| 37 | |
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| 38 | static const char *get_ATD_entry(const char *serverID) { |
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| 39 | const char *result = 0; |
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| 40 | if (ATD_content) { |
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| 41 | int c; |
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| 42 | for (c = 0; ATD_content[c]; c++) { |
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| 43 | const char *id = ATD_content[c]; |
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| 44 | |
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| 45 | if (strcmp(id, serverID) == 0) { |
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| 46 | result = strchr(id, 0)+1; /* return pointer to first parameter */ |
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| 47 | break; |
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| 48 | } |
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| 49 | } |
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| 50 | } |
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| 51 | return result; |
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| 52 | } |
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| 53 | |
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| 54 | /* ------------------------------------------------------------ */ |
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| 55 | #if defined(DUMP_ATD_ACCESS) |
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| 56 | static void dump_ATD() { |
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| 57 | printf("ATD_filename='%s'\n", ATD_filename); |
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| 58 | printf("ATD_modtime='%lu'\n", ATD_modtime); |
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| 59 | if (ATD_content) { |
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| 60 | int c; |
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| 61 | for (c = 0; ATD_content[c]; c++) { |
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| 62 | char *data = ATD_content[c]; |
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| 63 | char *tok = data; |
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| 64 | printf("Entry #%i:\n", c); |
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| 65 | |
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| 66 | while (tok[0]) { |
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| 67 | printf("- '%s'\n", tok); |
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| 68 | tok = strchr(tok, 0)+1; |
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| 69 | } |
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| 70 | } |
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| 71 | } |
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| 72 | else { |
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| 73 | printf("No ATD_content\n"); |
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| 74 | } |
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| 75 | } |
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| 76 | #endif /* DUMP_ATD_ACCESS */ |
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| 77 | /* ------------------------------------------------------------ */ |
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| 78 | |
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| 79 | static void freeContent() { |
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| 80 | if (ATD_content) { |
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| 81 | int c; |
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| 82 | for (c = 0; ATD_content[c]; c++) free(ATD_content[c]); |
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| 83 | freeset(ATD_content, 0); |
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| 84 | } |
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| 85 | } |
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| 86 | |
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| 87 | #define MAXLINELEN 512 |
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| 88 | #define MAXTOKENS 10 |
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| 89 | |
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| 90 | static GB_ERROR read_arb_tcp_dat(const char *filename, int *versionFound) { |
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| 91 | /* used to read arb_tcp.dat or arb_tcp_org.dat */ |
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| 92 | GB_ERROR error = 0; |
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| 93 | FILE *in = fopen(filename, "rt"); |
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| 94 | |
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| 95 | *versionFound = 1; // default to version 1 (old format) |
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| 96 | |
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| 97 | #if defined(DUMP_ATD_ACCESS) |
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| 98 | printf("(re)reading %s\n", filename); |
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| 99 | #endif /* DUMP_ATD_ACCESS */ |
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| 100 | |
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| 101 | freeContent(); |
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| 102 | |
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| 103 | if (!in) { |
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| 104 | error = GBS_global_string("Can't read '%s'", filename); |
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| 105 | } |
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| 106 | else { |
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| 107 | char buffer[MAXLINELEN+1]; |
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| 108 | char *lp; |
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| 109 | int lineNumber = 0; |
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| 110 | char **tokens = malloc(MAXTOKENS*sizeof(*tokens)); |
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| 111 | |
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| 112 | int entries_allocated = 30; |
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| 113 | int entries = 0; |
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| 114 | char **entry = malloc(entries_allocated*sizeof(*entry)); |
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| 115 | |
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| 116 | if (!tokens || !entry) error = "Out of memory"; |
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| 117 | |
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| 118 | for (lp = fgets(buffer, MAXLINELEN, in); |
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| 119 | lp && !error; |
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| 120 | lp = fgets(buffer, MAXLINELEN, in)) |
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| 121 | { |
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| 122 | char *tok; |
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| 123 | int tokCount = 0; |
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| 124 | int t; |
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| 125 | |
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| 126 | lineNumber++; |
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| 127 | |
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| 128 | while ((tok = strtok(lp, " \t\n"))) { |
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| 129 | if (tok[0] == '#') break; /* EOL comment -> stop */ |
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| 130 | if (tokCount >= MAXTOKENS) { error = "Too many tokens"; break; } |
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| 131 | tokens[tokCount] = tokCount ? GBS_eval_env(tok) : strdup(tok); |
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| 132 | if (!tokens[tokCount]) { error = GB_await_error(); break; } |
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| 133 | tokCount++; |
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| 134 | lp = 0; |
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| 135 | } |
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| 136 | |
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| 137 | if (!error && tokCount>0) { |
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| 138 | if (strcmp(tokens[0], "ARB_TCP_DAT_VERSION") == 0) { |
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| 139 | if (tokCount>1) *versionFound = atoi(tokens[1]); |
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| 140 | } |
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| 141 | else { |
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| 142 | char *data; |
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| 143 | { |
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| 144 | int allsize = 0; |
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| 145 | int size[MAXTOKENS]; |
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| 146 | |
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| 147 | for (t = 0; t<tokCount; t++) { |
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| 148 | size[t] = strlen(tokens[t])+1; |
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| 149 | allsize += size[t]; |
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| 150 | } |
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| 151 | allsize++; /* additional zero byte */ |
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| 152 | |
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| 153 | data = malloc(allsize); |
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| 154 | { |
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| 155 | char *d = data; |
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| 156 | for (t = 0; t<tokCount; t++) { |
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| 157 | memmove(d, tokens[t], size[t]); |
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| 158 | d += size[t]; |
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| 159 | } |
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| 160 | d[0] = 0; |
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| 161 | } |
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| 162 | } |
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| 163 | |
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| 164 | if (entries == entries_allocated) { |
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| 165 | char **entry2; |
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| 166 | entries_allocated = (int)(entries_allocated*1.5); |
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| 167 | entry2 = realloc(entry, entries_allocated*sizeof(*entry)); |
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| 168 | |
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| 169 | if (!entry2) error = "Out of memory"; |
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| 170 | else entry = entry2; |
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| 171 | } |
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| 172 | if (!error) { |
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| 173 | entry[entries++] = data; |
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| 174 | data = 0; |
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| 175 | } |
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| 176 | free(data); |
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| 177 | } |
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| 178 | } |
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| 179 | |
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| 180 | if (error) error = GBS_global_string("%s (in line %i of '%s')", error, lineNumber, filename); |
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| 181 | for (t = 0; t<tokCount; t++) freeset(tokens[t], 0); |
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| 182 | } |
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| 183 | |
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| 184 | ATD_content = realloc(entry, (entries+1)*sizeof(*entry)); |
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| 185 | if (!ATD_content) error = "Out of memory"; |
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| 186 | else ATD_content[entries] = 0; |
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| 187 | |
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| 188 | free(tokens); |
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| 189 | fclose(in); |
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| 190 | } |
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| 191 | |
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| 192 | #if defined(DUMP_ATD_ACCESS) |
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| 193 | dump_ATD(); |
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| 194 | #endif /* DUMP_ATD_ACCESS */ |
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| 195 | return error; |
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| 196 | } |
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| 197 | |
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| 198 | static GB_ERROR load_arb_tcp_dat() { |
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| 199 | /* read arb_tcp.dat (once or if changed on disk) */ |
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| 200 | GB_ERROR error = 0; |
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| 201 | char *filename = GBS_find_lib_file("arb_tcp.dat","", 1); |
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| 202 | |
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| 203 | if (!filename) { |
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| 204 | error = GBS_global_string("File $ARBHOME/lib/arb_tcp.dat not found"); |
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| 205 | } |
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| 206 | else { |
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| 207 | struct stat st; |
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| 208 | if (stat(filename, &st) == 0) { |
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| 209 | GB_ULONG modtime = st.st_mtime; |
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| 210 | if (ATD_modtime != modtime) { // read once or when changed |
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| 211 | int arb_tcp_version; |
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| 212 | |
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| 213 | error = read_arb_tcp_dat(filename, &arb_tcp_version); |
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| 214 | if (!error) { |
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| 215 | int expected_version = 2; |
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| 216 | if (arb_tcp_version != expected_version) { |
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| 217 | error = GBS_global_string("Expected arb_tcp.dat version %i\n" |
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| 218 | "Your '%s' has version %i\n" |
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| 219 | "To solve the problem\n" |
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| 220 | "- either reinstall ARB and do not select\n" |
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| 221 | " 'Use information of already installed ARB'\n" |
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| 222 | " (any changes to arb_tcp.dat will be lost)\n" |
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| 223 | "- or backup your changed %s,\n" |
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| 224 | " replace it by the contents from $ARBHOME/lib/arb_tcp_org.dat\n" |
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| 225 | " and edit it to fit your needs.", |
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| 226 | expected_version, |
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| 227 | filename, arb_tcp_version, |
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| 228 | filename); |
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| 229 | } |
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| 230 | } |
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| 231 | |
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| 232 | free(ATD_filename); |
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| 233 | if (!error) { |
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| 234 | ATD_modtime = modtime; |
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| 235 | ATD_filename = filename; |
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| 236 | filename = 0; |
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| 237 | } |
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| 238 | else { |
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| 239 | ATD_modtime = -1; |
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| 240 | ATD_filename = 0; |
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| 241 | } |
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| 242 | } |
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| 243 | } |
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| 244 | else { |
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| 245 | error = GBS_global_string("Can't stat '%s'", filename); |
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| 246 | } |
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| 247 | } |
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| 248 | free(filename); |
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| 249 | |
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| 250 | #if defined(DUMP_ATD_ACCESS) |
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| 251 | printf("error=%s\n", error); |
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| 252 | #endif /* DUMP_ATD_ACCESS */ |
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| 253 | |
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| 254 | return error; |
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| 255 | } |
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| 256 | |
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| 257 | const char *GBS_scan_arb_tcp_param(const char *ipPort, const char *wantedParam) { |
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| 258 | /* search a specific server parameter in result from GBS_read_arb_tcp() |
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| 259 | * wantedParam may be sth like '-d' (case is ignored!) |
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| 260 | */ |
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| 261 | const char *result = 0; |
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| 262 | if (ipPort) { |
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| 263 | const char *exe = strchr(ipPort, 0)+1; |
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| 264 | const char *param = strchr(exe, 0)+1; |
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| 265 | size_t plen = strlen(param); |
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| 266 | size_t wplen = strlen(wantedParam); |
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| 267 | |
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| 268 | while (plen) { |
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| 269 | if (strncasecmp(param, wantedParam, wplen) == 0) { /* starts with wantedParam */ |
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| 270 | result = param+wplen; |
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| 271 | break; |
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| 272 | } |
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| 273 | param += plen+1; /* position behind 0-delimiter */ |
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| 274 | plen = strlen(param); |
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| 275 | } |
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| 276 | } |
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| 277 | return result; |
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| 278 | } |
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| 279 | |
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| 280 | /******************************************************************************************** |
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| 281 | Find an entry in the $ARBHOME/lib/arb_tcp.dat file |
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| 282 | ********************************************************************************************/ |
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| 283 | |
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| 284 | const char *GBS_read_arb_tcp(const char *env) { |
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| 285 | /* Be aware: GBS_read_arb_tcp returns a quite unusual string containing several string delimiters (0-characters). |
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| 286 | * It contains all words (separated by space or tab in arb_tcp.dat) of the corresponding line in arb_tcp.dat. |
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| 287 | * These words get concatenated (separated by 0 characters). |
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| 288 | * |
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| 289 | * The first word (which matches the parameter env) is skipped. |
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| 290 | * The second word (the socket info = "host:port") is returned directly as result. |
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| 291 | * The third word is the server executable name. |
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| 292 | * The fourth and following words are parameters to the executable. |
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| 293 | * |
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| 294 | * To access these words follow this example: |
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| 295 | * |
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| 296 | * const char *ipPort = GBS_read_arb_tcp("ARB_NAME_SERVER"); |
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| 297 | * if (ipPort) { |
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| 298 | * const char *serverExe = strchr(ipPort, 0)+1; |
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| 299 | * const char *para1 = strchr(serverExe, 0)+1; // always exists! |
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| 300 | * const char *para2 = strchr(para1, 0)+1; |
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| 301 | * if (para2[0]) { |
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| 302 | * // para2 exists |
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| 303 | * } |
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| 304 | * } |
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| 305 | * |
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| 306 | * see also GBS_read_arb_tcp_param() above |
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| 307 | * |
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| 308 | * Returns NULL on error (which is exported in that case) |
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| 309 | */ |
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| 310 | |
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| 311 | const char *result = 0; |
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| 312 | GB_ERROR error = 0; |
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| 313 | |
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| 314 | if (strchr(env,':')){ |
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| 315 | static char *resBuf = 0; |
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| 316 | freedup(resBuf, env); |
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| 317 | result = resBuf; |
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| 318 | } |
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| 319 | else { |
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| 320 | error = load_arb_tcp_dat(); /* load once or reload after change on disk */ |
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| 321 | if (!error) { |
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| 322 | const char *user = GB_getenvUSER(); |
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| 323 | if (!user) { |
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| 324 | error = "Environment variable 'USER' not defined"; |
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| 325 | } |
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| 326 | else { |
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| 327 | char *envuser = GBS_global_string_copy("%s:%s", user, env); |
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| 328 | result = get_ATD_entry(envuser); |
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| 329 | |
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| 330 | if (!result) { /* no user-specific entry found */ |
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| 331 | result = get_ATD_entry(env); |
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| 332 | if (!result) { |
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| 333 | error = GBS_global_string("Expected entry '%s' or '%s' in '%s'", |
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| 334 | env, envuser, ATD_filename); |
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| 335 | } |
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| 336 | } |
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| 337 | free(envuser); |
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| 338 | } |
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| 339 | } |
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| 340 | } |
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| 341 | |
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| 342 | ad_assert(result||error); |
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| 343 | if (error) { |
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| 344 | GB_export_error(error); |
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| 345 | result = 0; |
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| 346 | } |
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| 347 | return result; |
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| 348 | } |
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| 349 | |
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| 350 | const char * const *GBS_get_arb_tcp_entries(const char *matching) { |
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| 351 | /* returns a list of all matching non-user-specific entries found in arb_tcp.dat |
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| 352 | * match is performed by GBS_string_matches (e.g. use "ARB_PT_SERVER*") |
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| 353 | */ |
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| 354 | static const char **matchingEntries = 0; |
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| 355 | static int matchingEntriesSize = 0; |
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| 356 | |
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| 357 | GB_ERROR error = 0; |
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| 358 | |
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| 359 | error = load_arb_tcp_dat(); |
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| 360 | if (!error) { |
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| 361 | int count = 0; |
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| 362 | int matched = 0; |
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| 363 | int c; |
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| 364 | |
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| 365 | while (ATD_content[count]) count++; |
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| 366 | |
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| 367 | if (matchingEntriesSize != count) { |
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| 368 | freeset(matchingEntries, malloc((count+1)*sizeof(*matchingEntries))); |
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| 369 | matchingEntriesSize = count; |
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| 370 | } |
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| 371 | |
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| 372 | for (c = 0; c<count; c++) { |
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| 373 | const char *id = ATD_content[c]; |
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| 374 | |
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| 375 | if (strchr(id, ':') == 0) { /* not user-specific */ |
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| 376 | if (GBS_string_matches(id, matching, GB_MIND_CASE)) { /* matches */ |
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| 377 | matchingEntries[matched++] = id; |
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| 378 | } |
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| 379 | } |
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| 380 | } |
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| 381 | matchingEntries[matched] = 0; /* end of array */ |
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| 382 | } |
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| 383 | if (error) GB_export_error(error); |
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| 384 | return error ? 0 : matchingEntries; |
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| 385 | } |
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| 386 | |
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| 387 | /* --------------------------- */ |
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| 388 | /* pt server related */ |
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| 389 | /* --------------------------- */ |
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| 390 | |
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| 391 | const char *GBS_ptserver_logname() { |
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| 392 | static char *serverlog = 0; |
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| 393 | if (!serverlog) { |
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| 394 | serverlog = nulldup(GB_path_in_ARBLIB("pts/ptserver.log", NULL)); |
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| 395 | gb_assert(serverlog); |
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| 396 | } |
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| 397 | return serverlog; |
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| 398 | } |
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| 399 | |
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| 400 | void GBS_add_ptserver_logentry(const char *entry) { |
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| 401 | FILE *log = fopen(GBS_ptserver_logname(), "at"); |
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| 402 | if (log) { |
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| 403 | chmod(GBS_ptserver_logname(), 0666); |
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| 404 | char atime[256]; |
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| 405 | time_t t = time(0); |
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| 406 | struct tm *tms = localtime(&t); |
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| 407 | strftime(atime, 255, "%Y/%m/%d %k:%M:%S", tms); |
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| 408 | fprintf(log, "%s %s\n", atime, entry); |
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| 409 | fclose(log); |
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| 410 | } |
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| 411 | else { |
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| 412 | fprintf(stderr, "Failed to write to '%s'\n", GBS_ptserver_logname()); |
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| 413 | } |
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| 414 | } |
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| 415 | |
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| 416 | char *GBS_ptserver_id_to_choice(int i, int showBuild) { |
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| 417 | /* Return a readable name for PTserver number 'i' |
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| 418 | * If 'showBuild' then show build info as well. |
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| 419 | * |
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| 420 | * Return NULL in case of error (which was exported then) |
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| 421 | */ |
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| 422 | char *serverID = GBS_global_string_copy("ARB_PT_SERVER%i", i); |
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| 423 | const char *ipPort = GBS_read_arb_tcp(serverID); |
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| 424 | char *result = 0; |
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| 425 | |
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| 426 | if (ipPort) { |
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| 427 | const char *file = GBS_scan_arb_tcp_param(ipPort, "-d"); |
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| 428 | const char *nameOnly = strrchr(file, '/'); |
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| 429 | |
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| 430 | if (nameOnly) nameOnly++; /* position behind '/' */ |
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| 431 | else nameOnly = file; /* otherwise show complete file */ |
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| 432 | |
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| 433 | { |
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| 434 | char *remote = strdup(ipPort); |
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| 435 | char *colon = strchr(remote, ':'); |
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| 436 | if (colon) *colon = 0; /* hide port */ |
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| 437 | |
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| 438 | if (strcmp(remote, "localhost") == 0) { /* hide localhost */ |
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| 439 | result = nulldup(nameOnly); |
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| 440 | } |
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| 441 | else { |
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| 442 | result = GBS_global_string_copy("%s: %s", remote, nameOnly); |
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| 443 | } |
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| 444 | free(remote); |
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| 445 | } |
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| 446 | |
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| 447 | |
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| 448 | if (showBuild) { |
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| 449 | struct stat st; |
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| 450 | |
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| 451 | if (stat(file, &st) == 0) { // xxx.arb present |
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| 452 | time_t fileMod = st.st_mtime; |
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| 453 | char *serverDB = GBS_global_string_copy("%s.pt", file); |
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| 454 | char *newResult = 0; |
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| 455 | |
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| 456 | if (stat(serverDB, &st) == 0) { // pt-database present |
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| 457 | if (st.st_mtime < fileMod) { // DB is newer than pt-database |
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| 458 | newResult = GBS_global_string_copy("%s [starting or failed update]", result); |
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| 459 | } |
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| 460 | else { |
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| 461 | char atime[256]; |
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| 462 | struct tm *tms = localtime(&st.st_mtime); |
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| 463 | |
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| 464 | strftime(atime, 255,"%Y/%m/%d %k:%M", tms); |
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| 465 | newResult = GBS_global_string_copy("%s [%s]", result, atime); |
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| 466 | } |
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| 467 | } |
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| 468 | else { // check for running build |
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| 469 | char *serverDB_duringBuild = GBS_global_string_copy("%s%%", serverDB); |
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| 470 | if (stat(serverDB_duringBuild, &st) == 0) { |
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| 471 | newResult = GBS_global_string_copy("%s [building..]", result); |
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| 472 | } |
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| 473 | free(serverDB_duringBuild); |
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| 474 | } |
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| 475 | |
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| 476 | if (newResult) freeset(result, newResult); |
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| 477 | free(serverDB); |
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| 478 | } |
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| 479 | } |
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| 480 | } |
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| 481 | free(serverID); |
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| 482 | |
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| 483 | return result; |
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| 484 | } |
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