X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=common-src%2Fmatch.c;h=d8c83bcc7657ec16014ade4c0f35587bc4e20826;hb=2627875b7d18858bc1f9f7652811e4d8c15a23eb;hp=f9ce31ded98bf71d8e8f78bc72b60636fe62957c;hpb=94a044f90357edefa6f4ae9f0b1d5885b0e34aee;p=debian%2Famanda

diff --git a/common-src/match.c b/common-src/match.c
index f9ce31d..d8c83bc 100644
--- a/common-src/match.c
+++ b/common-src/match.c
@@ -99,6 +99,34 @@ match(
     return result == 0;
 }
 
+int
+match_no_newline(
+    const char *	regex,
+    const char *	str)
+{
+    regex_t regc;
+    int result;
+    char errmsg[STR_SIZE];
+
+    if((result = regcomp(&regc, regex,
+			 REG_EXTENDED|REG_NOSUB)) != 0) {
+        regerror(result, &regc, errmsg, SIZEOF(errmsg));
+	error(_("regex \"%s\": %s"), regex, errmsg);
+	/*NOTREACHED*/
+    }
+
+    if((result = regexec(&regc, str, 0, 0, 0)) != 0
+       && result != REG_NOMATCH) {
+        regerror(result, &regc, errmsg, SIZEOF(errmsg));
+	error(_("regex \"%s\": %s"), regex, errmsg);
+	/*NOTREACHED*/
+    }
+
+    regfree(&regc);
+
+    return result == 0;
+}
+
 char *
 validate_glob(
     const char *	glob)
@@ -530,6 +558,17 @@ match_disk(
     return match_word(glob, disk, '/');
 }
 
+static int
+alldigits(
+    const char *str)
+{
+    while (*str) {
+	if (!isdigit((int)*(str++)))
+	    return 0;
+    }
+    return 1;
+}
+
 int
 match_datestamp(
     const char *	dateexp,
@@ -543,45 +582,56 @@ match_datestamp(
     int match_exact;
 
     if(strlen(dateexp) >= 100 || strlen(dateexp) < 1) {
-	error(_("Illegal datestamp expression %s"),dateexp);
-	/*NOTREACHED*/
+	goto illegal;
     }
    
+    /* strip and ignore an initial "^" */
     if(dateexp[0] == '^') {
-	strncpy(mydateexp, dateexp+1, strlen(dateexp)-1); 
-	mydateexp[strlen(dateexp)-1] = '\0';
+	strncpy(mydateexp, dateexp+1, sizeof(mydateexp)-1);
+	mydateexp[sizeof(mydateexp)-1] = '\0';
     }
     else {
-	strncpy(mydateexp, dateexp, strlen(dateexp));
-	mydateexp[strlen(dateexp)] = '\0';
+	strncpy(mydateexp, dateexp, sizeof(mydateexp)-1);
+	mydateexp[sizeof(mydateexp)-1] = '\0';
     }
 
-    if(mydateexp[strlen(mydateexp)] == '$') {
+    if(mydateexp[strlen(mydateexp)-1] == '$') {
 	match_exact = 1;
-	mydateexp[strlen(mydateexp)] = '\0';
+	mydateexp[strlen(mydateexp)-1] = '\0';	/* strip the trailing $ */
     }
     else
 	match_exact = 0;
 
+    /* a single dash represents a date range */
     if((dash = strchr(mydateexp,'-'))) {
-	if(match_exact == 1) {
-	    error(_("Illegal datestamp expression %s"),dateexp);
-	    /*NOTREACHED*/
+	if(match_exact == 1 || strchr(dash+1, '-')) {
+	    goto illegal;
 	}
-	len = (size_t)(dash - mydateexp);
-	len_suffix = strlen(dash) - 1;
-	len_prefix = len - len_suffix;
+
+	/* format: XXXYYYY-ZZZZ, indicating dates XXXYYYY to XXXZZZZ */
+
+	len = (size_t)(dash - mydateexp);   /* length of XXXYYYY */
+	len_suffix = strlen(dash) - 1;	/* length of ZZZZ */
+	if (len_suffix > len) goto illegal;
+	len_prefix = len - len_suffix; /* length of XXX */
 
 	dash++;
+
 	strncpy(firstdate, mydateexp, len);
 	firstdate[len] = '\0';
 	strncpy(lastdate, mydateexp, len_prefix);
 	strncpy(&(lastdate[len_prefix]), dash, len_suffix);
 	lastdate[len] = '\0';
+	if (!alldigits(firstdate) || !alldigits(lastdate))
+	    goto illegal;
+	if (strncmp(firstdate, lastdate, strlen(firstdate)) > 0)
+	    goto illegal;
 	return ((strncmp(datestamp, firstdate, strlen(firstdate)) >= 0) &&
 		(strncmp(datestamp, lastdate , strlen(lastdate))  <= 0));
     }
     else {
+	if (!alldigits(mydateexp))
+	    goto illegal;
 	if(match_exact == 1) {
 	    return (strcmp(datestamp, mydateexp) == 0);
 	}
@@ -589,6 +639,9 @@ match_datestamp(
 	    return (strncmp(datestamp, mydateexp, strlen(mydateexp)) == 0);
 	}
     }
+illegal:
+	error(_("Illegal datestamp expression %s"),dateexp);
+	/*NOTREACHED*/
 }