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authorGlenn L McGrath2002-11-06 23:35:28 +0000
committerGlenn L McGrath2002-11-06 23:35:28 +0000
commit62d28828d620d1d9295db6cb880cf6826a679344 (patch)
treec5c58c43e86e45fc57338f790989891f7ebc11cb
parent747381c602bac435cedcf782bce52123d827324d (diff)
downloadbusybox-62d28828d620d1d9295db6cb880cf6826a679344.zip
busybox-62d28828d620d1d9295db6cb880cf6826a679344.tar.gz
Use a switch instead of successive if (strcmp()) statments.
-rw-r--r--archival/dpkg.c81
1 files changed, 50 insertions, 31 deletions
diff --git a/archival/dpkg.c b/archival/dpkg.c
index b1aeebf..8b25bac 100644
--- a/archival/dpkg.c
+++ b/archival/dpkg.c
@@ -502,10 +502,24 @@ void free_package(common_node_t *node)
}
}
+/* returns the array number of the string */
+static unsigned short compare_string_array(const char *string_array[], const char *key)
+{
+ unsigned short i;
+
+ for (i = 0; string_array[i] != 0; i++) {
+ if (strcmp(string_array[i], key) == 0) {
+ break;
+ }
+ }
+ return(i);
+}
+
unsigned int fill_package_struct(char *control_buffer)
{
common_node_t *new_node = (common_node_t *) xcalloc(1, sizeof(common_node_t));
-
+ const char *field_names[] = { "Package", "Version", "Pre-Depends", "Depends",
+ "Replaces", "Provides", "Conflicts", "Suggests", "Recommends", "Enhances", 0};
char *field_name;
char *field_value;
int field_start = 0;
@@ -514,42 +528,47 @@ unsigned int fill_package_struct(char *control_buffer)
new_node->version = search_name_hashtable("unknown");
while (field_start < buffer_length) {
+ unsigned short field_num;
+
field_start += read_package_field(&control_buffer[field_start],
&field_name, &field_value);
if (field_name == NULL) {
- goto fill_package_struct_cleanup; // Oh no, the dreaded goto statement !!
+ goto fill_package_struct_cleanup; /* Oh no, the dreaded goto statement ! */
}
- if (strcmp(field_name, "Package") == 0) {
- new_node->name = search_name_hashtable(field_value);
- }
- else if (strcmp(field_name, "Version") == 0) {
- new_node->version = search_name_hashtable(field_value);
- }
- else if (strcmp(field_name, "Pre-Depends") == 0) {
- add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
- }
- else if (strcmp(field_name, "Depends") == 0) {
- add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
- }
- else if (strcmp(field_name, "Replaces") == 0) {
- add_split_dependencies(new_node, field_value, EDGE_REPLACES);
- }
- else if (strcmp(field_name, "Provides") == 0) {
- add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
- }
- else if (strcmp(field_name, "Conflicts") == 0) {
- add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
- }
- else if (strcmp(field_name, "Suggests") == 0) {
- add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
- }
- else if (strcmp(field_name, "Recommends") == 0) {
- add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
- }
- else if (strcmp(field_name, "Enhances") == 0) {
- add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
+ field_num = compare_string_array(field_names, field_name);
+ switch(field_num) {
+ case 0: /* Package */
+ new_node->name = search_name_hashtable(field_value);
+ break;
+ case 1: /* Version */
+ new_node->version = search_name_hashtable(field_value);
+ break;
+ case 2: /* Pre-Depends */
+ add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
+ break;
+ case 3: /* Depends */
+ add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
+ break;
+ case 4: /* Replaces */
+ add_split_dependencies(new_node, field_value, EDGE_REPLACES);
+ break;
+ case 5: /* Provides */
+ add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
+ break;
+ case 6: /* Conflicts */
+ add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
+ break;
+ case 7: /* Suggests */
+ add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
+ break;
+ case 8: /* Recommends */
+ add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
+ break;
+ case 9: /* Enhances */
+ add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
+ break;
}
fill_package_struct_cleanup:
if (field_name) {