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authorGravatar Salvador Cuñat <salvador.cunat@gmail.com>2019-08-01 23:50:26 +0200
committerGravatar Robert C. Helling <helling@atdotde.de>2019-08-02 08:58:35 +0200
commitac1408af5fde896cf0ed331063f99434d835f054 (patch)
treefa7a172331a96685753a5e3a1e0db339ffa989e8 /smtk-import/smartrak.c
parent218567bb86f485c9ff7b851e2d9034cf6c4968ba (diff)
downloadsubsurface-ac1408af5fde896cf0ed331063f99434d835f054.tar.gz
[smtk-import] avoid infinite loop on index failure
As Berthold points out, a failure to match the site or location index will result in an infinite loop with previous patch. With this one the loop will end after reading the last table row even if no idx is matched. But ... If we asume this situation is possible the retrieved data would be wrong, and ending the function without filling the site structure is mandatory too. Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
Diffstat (limited to 'smtk-import/smartrak.c')
-rw-r--r--smtk-import/smartrak.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/smtk-import/smartrak.c b/smtk-import/smartrak.c
index 4ed87a646..5382d3e6c 100644
--- a/smtk-import/smartrak.c
+++ b/smtk-import/smartrak.c
@@ -321,7 +321,7 @@ static void smtk_build_location(MdbHandle *mdb, char *idx, struct dive_site **lo
MdbTableDef *table;
MdbColumn *col[MDB_MAX_COLS];
char *bound_values[MDB_MAX_COLS];
- int i;
+ int i, rc;
uint32_t d;
struct dive_site *ds;
location_t loc;
@@ -333,10 +333,11 @@ static void smtk_build_location(MdbHandle *mdb, char *idx, struct dive_site **lo
table = smtk_open_table(mdb, "Site", col, bound_values);
if (!table)
return;
-
do {
- mdb_fetch_row(table);
- } while (strcasecmp(col[0]->bind_ptr, idx));
+ rc = mdb_fetch_row(table);
+ } while (strcasecmp(col[0]->bind_ptr, idx) && rc != 0);
+ if (rc == 0)
+ return;
loc_idx = copy_string(col[2]->bind_ptr);
site = copy_string(col[1]->bind_ptr);
loc = create_location(strtod(col[6]->bind_ptr, NULL), strtod(col[7]->bind_ptr, NULL));
@@ -362,8 +363,10 @@ static void smtk_build_location(MdbHandle *mdb, char *idx, struct dive_site **lo
table = smtk_open_table(mdb, "Location", col, bound_values);
mdb_rewind_table(table);
do {
- mdb_fetch_row(table);
- } while (strcasecmp(col[0]->bind_ptr, loc_idx));
+ rc =mdb_fetch_row(table);
+ } while (strcasecmp(col[0]->bind_ptr, loc_idx) && rc != 0);
+ if (rc == 0)
+ return;
/*
* Create a string for Subsurface's dive site structure with coordinates