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authorDan McGee <dan@archlinux.org>2008-01-11 00:01:58 -0600
committerDan McGee <dan@archlinux.org>2008-01-11 00:01:58 -0600
commitccc1c731529de16f6fa4064fd992a8f63d7cfc26 (patch)
treedc5b96634cb255cfcbee1e57079d32491db9fc5e /lib/libalpm/deps.c
parent0a65de10b1cd8bd450e47e735cb909eec13822d0 (diff)
downloadpacman-ccc1c731529de16f6fa4064fd992a8f63d7cfc26.tar.xz
Use dynamic string allocation in package structures
This also affects all structures with static strings, such as depmiss, conflict, etc. This should help a lot with memory usage, and hopefully make things a bit more "idiot proof". Currently our pactest pass/fail rate is identical before and after this patch. This is not to say it is a perfect patch- I have yet to pull valgrind out. However, this should be quite safe to use in all situations from here on out, and we can start plugging the memleaks. Original-work-by: Aaron Griffin <aaronmgriffin@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
Diffstat (limited to 'lib/libalpm/deps.c')
-rw-r--r--lib/libalpm/deps.c57
1 files changed, 39 insertions, 18 deletions
diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c
index 8d77fd46..cc9a581f 100644
--- a/lib/libalpm/deps.c
+++ b/lib/libalpm/deps.c
@@ -68,18 +68,26 @@ pmdepmissing_t *_alpm_depmiss_new(const char *target, pmdepmod_t depmod,
MALLOC(miss, sizeof(pmdepmissing_t), RET_ERR(PM_ERR_MEMORY, NULL));
- strncpy(miss->target, target, PKG_NAME_LEN);
+ STRDUP(miss->target, target, RET_ERR(PM_ERR_MEMORY, NULL));
miss->depend.mod = depmod;
- strncpy(miss->depend.name, depname, PKG_NAME_LEN);
+ STRDUP(miss->depend.name, depname, RET_ERR(PM_ERR_MEMORY, NULL));
if(depversion) {
- strncpy(miss->depend.version, depversion, PKG_VERSION_LEN);
- } else {
- miss->depend.version[0] = 0;
+ STRDUP(miss->depend.version, depversion, RET_ERR(PM_ERR_MEMORY, NULL));
}
return(miss);
}
+void _alpm_depmiss_free(pmdepmissing_t *miss)
+{
+ if(miss->depend.version && strlen(miss->depend.version) != 0) {
+ FREE(miss->depend.version);
+ }
+ FREE(miss->depend.name);
+ FREE(miss->target);
+ FREE(miss);
+}
+
/* Convert a list of pmpkg_t * to a graph structure,
* with a edge for each dependency.
* Returns a list of vertices (one vertex = one package)
@@ -362,9 +370,9 @@ pmdepend_t SYMEXPORT *alpm_splitdep(const char *depstring)
if(depstring == NULL) {
return(NULL);
}
- newstr = strdup(depstring);
+ STRDUP(newstr, depstring, RET_ERR(PM_ERR_MEMORY, NULL));
- MALLOC(depend, sizeof(pmdepend_t), return(NULL));
+ CALLOC(depend, sizeof(pmdepend_t), 1, RET_ERR(PM_ERR_MEMORY, NULL));
/* Find a version comparator if one exists. If it does, set the type and
* increment the ptr accordingly so we can copy the right strings. */
@@ -388,20 +396,19 @@ pmdepend_t SYMEXPORT *alpm_splitdep(const char *depstring)
depend->mod = PM_DEP_MOD_GT;
*ptr = '\0';
ptr += 1;
-
} else {
- /* no version specified - copy in the name and return it */
+ /* no version specified - copy the name and return it */
depend->mod = PM_DEP_MOD_ANY;
- strncpy(depend->name, newstr, PKG_NAME_LEN);
- depend->version[0] = '\0';
+ STRDUP(depend->name, newstr, RET_ERR(PM_ERR_MEMORY, NULL));
+ depend->version = NULL;
free(newstr);
return(depend);
}
/* if we get here, we have a version comparator, copy the right parts
* to the right places */
- strncpy(depend->name, newstr, PKG_NAME_LEN);
- strncpy(depend->version, ptr, PKG_VERSION_LEN);
+ STRDUP(depend->name, newstr, RET_ERR(PM_ERR_MEMORY, NULL));
+ STRDUP(depend->version, ptr, RET_ERR(PM_ERR_MEMORY, NULL));
free(newstr);
return(depend);
@@ -608,7 +615,8 @@ int _alpm_resolvedeps(pmdb_t *local, alpm_list_t *dbs_sync, pmpkg_t *syncpkg,
_alpm_log(PM_LOG_DEBUG, "finished resolving dependencies\n");
- FREELIST(deps);
+ alpm_list_free_inner(deps, (alpm_list_fn_free)_alpm_depmiss_free);
+ alpm_list_free(deps);
return(0);
@@ -674,7 +682,7 @@ const char SYMEXPORT *alpm_dep_get_version(const pmdepend_t *dep)
*/
char SYMEXPORT *alpm_dep_get_string(const pmdepend_t *dep)
{
- char *opr, *str = NULL;
+ char *name, *opr, *ver, *str = NULL;
size_t len;
ALPM_LOG_FUNC;
@@ -682,6 +690,12 @@ char SYMEXPORT *alpm_dep_get_string(const pmdepend_t *dep)
/* Sanity checks */
ASSERT(dep != NULL, return(NULL));
+ if(dep->name) {
+ name = dep->name;
+ } else {
+ name = "";
+ }
+
switch(dep->mod) {
case PM_DEP_MOD_ANY:
opr = "";
@@ -706,11 +720,18 @@ char SYMEXPORT *alpm_dep_get_string(const pmdepend_t *dep)
break;
}
+ if(dep->version) {
+ ver = dep->version;
+ } else {
+ ver = "";
+ }
+
/* we can always compute len and print the string like this because opr
- * and ver will be empty when PM_DEP_MOD_ANY is the depend type */
- len = strlen(dep->name) + strlen(opr) + strlen(dep->version) + 1;
+ * and ver will be empty when PM_DEP_MOD_ANY is the depend type. the
+ * reassignments above also ensure we do not do a strlen(NULL). */
+ len = strlen(name) + strlen(opr) + strlen(ver) + 1;
MALLOC(str, len, RET_ERR(PM_ERR_MEMORY, NULL));
- snprintf(str, len, "%s%s%s", dep->name, opr, dep->version);
+ snprintf(str, len, "%s%s%s", name, opr, ver);
return(str);
}