| 1 | static char *sccsid = "@(#)filter.c 1.2 (Berkeley) %G%"; |
| 2 | #include <stdio.h> |
| 3 | #include <ctype.h> |
| 4 | #include <pwd.h> |
| 5 | #include "error.h" |
| 6 | |
| 7 | char *lint_libs[] = { |
| 8 | IG_FILE1, |
| 9 | IG_FILE2, |
| 10 | IG_FILE3, |
| 11 | IG_FILE4, |
| 12 | 0 |
| 13 | }; |
| 14 | extern char* processname; |
| 15 | int lexsort(); |
| 16 | /* |
| 17 | * Read the file ERRORNAME of the names of functions in lint |
| 18 | * to ignore complaints about. |
| 19 | */ |
| 20 | getignored(auxname) |
| 21 | char *auxname; |
| 22 | { |
| 23 | reg int i; |
| 24 | FILE *fyle; |
| 25 | char inbuffer[256]; |
| 26 | int uid; |
| 27 | char filename[128]; |
| 28 | char *username; |
| 29 | struct passwd *passwdentry; |
| 30 | |
| 31 | nignored = 0; |
| 32 | if (auxname == 0){ /* use the default */ |
| 33 | if ( (username = (char *)getlogin()) == NULL){ |
| 34 | username = "Unknown"; |
| 35 | uid = getuid(); |
| 36 | if ( (passwdentry = (struct passwd *)getpwuid(uid)) == NULL){ |
| 37 | return; |
| 38 | } |
| 39 | } else { |
| 40 | if ( (passwdentry = (struct passwd *)getpwnam(username)) == NULL) |
| 41 | return; |
| 42 | } |
| 43 | strcpy(filename, passwdentry->pw_dir); |
| 44 | (void)strcat(filename, ERRORNAME); |
| 45 | } else |
| 46 | (void)strcpy(filename, auxname); |
| 47 | #ifdef FULLDEBUG |
| 48 | printf("Opening file \"%s\" to read names to ignore.\n", |
| 49 | filename); |
| 50 | #endif |
| 51 | if ( (fyle = fopen(filename, "r")) == NULL){ |
| 52 | #ifdef FULLDEBUG |
| 53 | fprintf(stderr, "%s: Can't open file \"%s\"\n", |
| 54 | processname, filename); |
| 55 | #endif |
| 56 | return; |
| 57 | } |
| 58 | /* |
| 59 | * Make the first pass through the file, counting lines |
| 60 | */ |
| 61 | for (nignored = 0; fgets(inbuffer, 255, fyle) != NULL; nignored++) |
| 62 | continue; |
| 63 | names_ignored = (char **)Calloc(nignored+1, sizeof (char *)); |
| 64 | fclose(fyle); |
| 65 | if (freopen(filename, "r", fyle) == NULL){ |
| 66 | #ifdef FULLDEBUG |
| 67 | fprintf(stderr, "%s: Failure to open \"%s\" for second read.\n", |
| 68 | processname, filename); |
| 69 | #endif |
| 70 | nignored = 0; |
| 71 | return; |
| 72 | } |
| 73 | for (i=0; i < nignored && (fgets (inbuffer, 255, fyle) != NULL); i++){ |
| 74 | names_ignored[i] = strsave(inbuffer); |
| 75 | (void)substitute(names_ignored[i], '\n', '\0'); |
| 76 | } |
| 77 | qsort(names_ignored, nignored, sizeof *names_ignored, lexsort); |
| 78 | #ifdef FULLDEBUG |
| 79 | printf("Names to ignore follow.\n"); |
| 80 | for (i=0; i < nignored; i++){ |
| 81 | printf("\tIgnore: %s\n", names_ignored[i]); |
| 82 | } |
| 83 | #endif |
| 84 | } |
| 85 | |
| 86 | int lexsort(cpp1, cpp2) |
| 87 | char **cpp1, **cpp2; |
| 88 | { |
| 89 | return(strcmp(*cpp1, *cpp2)); |
| 90 | } |
| 91 | |
| 92 | int search_ignore(key) |
| 93 | char *key; |
| 94 | { |
| 95 | reg int ub, lb; |
| 96 | reg int halfway; |
| 97 | int order; |
| 98 | |
| 99 | if (nignored == 0) |
| 100 | return(-1); |
| 101 | for(lb = 0, ub = nignored - 1; ub >= lb; ){ |
| 102 | halfway = (ub + lb)/2; |
| 103 | if ( (order = strcmp(key, names_ignored[halfway])) == 0) |
| 104 | return(halfway); |
| 105 | if (order < 0) /*key is less than probe, throw away above*/ |
| 106 | ub = halfway - 1; |
| 107 | else |
| 108 | lb = halfway + 1; |
| 109 | } |
| 110 | return(-1); |
| 111 | } |
| 112 | |
| 113 | /* |
| 114 | * Tell if the error text is to be ignored. |
| 115 | * The error must have been canonicalized, with |
| 116 | * the file name the zeroth entry in the errorv, |
| 117 | * and the linenumber the second. |
| 118 | * Return the new categorization of the error class. |
| 119 | */ |
| 120 | Errorclass discardit(errorp) |
| 121 | reg Eptr errorp; |
| 122 | { |
| 123 | int language; |
| 124 | reg int i; |
| 125 | Errorclass errorclass = errorp->error_e_class; |
| 126 | |
| 127 | switch(errorclass){ |
| 128 | case C_SYNC: |
| 129 | case C_NONSPEC: |
| 130 | case C_UNKNOWN: return(errorclass); |
| 131 | default: ; |
| 132 | } |
| 133 | if(errorp->error_lgtext < 2){ |
| 134 | return(C_NONSPEC); |
| 135 | } |
| 136 | language = errorp->error_language; |
| 137 | if(language == INLINT){ |
| 138 | if (errorclass != C_NONSPEC){ /* no file */ |
| 139 | for(i=0; lint_libs[i] != 0; i++){ |
| 140 | if (strcmp(errorp->error_text[0], lint_libs[i]) == 0){ |
| 141 | return(C_DISCARD); |
| 142 | } |
| 143 | } |
| 144 | } |
| 145 | /* check if the argument to the error message is to be ignored*/ |
| 146 | if (ispunct(lastchar(errorp->error_text[2]))) |
| 147 | clob_last(errorp->error_text[2], '\0'); |
| 148 | if (search_ignore(errorp->error_text[errorclass == C_NONSPEC ? 0 : 2]) >= 0){ |
| 149 | return(C_NULLED); |
| 150 | } |
| 151 | } |
| 152 | return(errorclass); |
| 153 | } |