88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
/* verificador.c */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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/* maximum word def */
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#define MAXNW 50
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/* maximum word length including \0 */
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#define MAXWL 19
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/* This function does what its name tells */
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void exitNow(int s) {
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exit(0);
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}
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/* reads forbidden word list from file */
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/* assume all words have at most 19 chars */
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/* file must not have more than one word per line */
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/* return number of word read */
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int readWordFile(FILE * f, char wdef[][MAXWL], int maxw) {
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int numw = 0;
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while (!feof(f) && numw < maxw)
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if (fscanf(f,"%s", wdef[numw])>0)
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numw++;
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return numw;
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}
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/* checks word agains forbidden word dictionary */
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/* word must match exactly - partials do not count */
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/* returns 0 or 1*/
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int checkWord(char * word, char wdef[][MAXWL], int maxw) {
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int i;
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for (i=0; i<maxw;i++)
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if (!strcmp(word,wdef[i]))
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return 1;
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return 0;
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}
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/* The main fuction. It's kind of useful to exist */
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int main(int argc, char** argv) {
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char forbwords[MAXNW][MAXWL];
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char word[MAXWL];
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int numw; /* number of words */
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int numhits; /* hits in this message */
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int justprinted;
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FILE * wordsf;
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if (argc<2) {
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printf("ERROR-1\n");
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return 1;
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}
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wordsf = fopen(argv[1], "r");
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if (wordsf == NULL) {
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printf("ERROR-2\n");
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return 2;
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}
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numw = readWordFile(wordsf, forbwords, MAXNW);
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fclose(wordsf);
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if (numw < 1) {
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printf("ERROR-3\n");
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return 3;
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}
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signal(SIGUSR2, exitNow);
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/* preps done. start text processing */
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numhits = 0;
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justprinted = 0;
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while (!feof(stdin)) {
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if (scanf("%s", word)<0)
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continue;
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if (!strcmp(word,"##MSGEND##")) {
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printf("%d\n",numhits);
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fflush(stdout);
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numhits = 0; /* restart counting */
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justprinted = 1;
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}
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else {
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numhits += checkWord(word, forbwords, numw);
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justprinted = 0;
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}
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}
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if (!justprinted)
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printf("%d\n",numhits);
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return 0;
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}
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