tony2001 Mon Jan 23 22:40:39 2006 UTC
Modified files:
/php-src/ext/dbase dbf_head.c
Log:
fix #36113 (Reading records of unsupported type causes segfault)
http://cvs.php.net/viewcvs.cgi/php-src/ext/dbase/dbf_head.c?r1=1.14&r2=1.15&diff_format=u
Index: php-src/ext/dbase/dbf_head.c
diff -u php-src/ext/dbase/dbf_head.c:1.14 php-src/ext/dbase/dbf_head.c:1.15
--- php-src/ext/dbase/dbf_head.c:1.14 Sun Oct 12 01:07:59 2003
+++ php-src/ext/dbase/dbf_head.c Mon Jan 23 22:40:39 2006
@@ -24,7 +24,7 @@
dbfield_t *dbf, *cur_f, *tdbf;
int ret, nfields, offset, gf_retval;
- if ((dbh = (dbhead_t *)malloc(sizeof(dbhead_t))) == NULL)
+ if ((dbh = (dbhead_t *)calloc(1, sizeof(dbhead_t))) == NULL)
return NULL;
if (lseek(fd, 0, 0) < 0)
return NULL;
@@ -44,7 +44,7 @@
/* malloc enough memory for the maximum number of fields:
32 * 1024 = 32K dBase5 (for Win) seems to allow that many */
- tdbf = (dbfield_t *)malloc(sizeof(dbfield_t)*1024);
+ tdbf = (dbfield_t *)calloc(1, sizeof(dbfield_t)*1024);
offset = 1;
nfields = 0;
@@ -157,7 +157,8 @@
}
if ((dbf->db_format = get_dbf_f_fmt(dbf)) == NULL) {
- return 1;
+ /* something went wrong, most likely this fieldtype is not
supported */
+ return -1;
}
return 0;
@@ -235,6 +236,8 @@
case 'M':
strcpy(format, "%s");
break;
+ default:
+ return NULL;
}
return (char *)strdup(format);
}
@@ -256,7 +259,7 @@
}
}
- if ((dbh = get_dbf_head(fd)) == 0) {
+ if ((dbh = get_dbf_head(fd)) == NULL) {
fprintf(stderr, "Unable to get header\n");
return NULL;
}
--
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