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authorDave Reisner <dreisner@archlinux.org>2014-11-17 21:18:08 -0500
committerDave Reisner <dreisner@archlinux.org>2014-11-17 21:21:10 -0500
commitb4a303bb85b53d6d44b238174297f66b1d21be5a (patch)
treed7bd3939e8a8d6917dab980bc4975f12d8bbc586 /expac.c
parent29d41d4c223e65fdada27f94f10d186572f8b1e8 (diff)
downloadexpac-b4a303bb85b53d6d44b238174297f66b1d21be5a.tar.xz
allow reading targets from stdin
Diffstat (limited to 'expac.c')
-rw-r--r--expac.c62
1 files changed, 53 insertions, 9 deletions
diff --git a/expac.c b/expac.c
index ba338a9..2cf5c5a 100644
--- a/expac.c
+++ b/expac.c
@@ -643,14 +643,14 @@ static alpm_list_t *resolve_targets(alpm_list_t *dblist, alpm_list_t *targets) {
return search_exact(dblist, targets);
}
-void expac_free(Expac *expac) {
+static void expac_free(Expac *expac) {
if (expac == NULL)
return;
alpm_release(expac->alpm);
}
-int expac_new(Expac **expac, const char *config_file) {
+static int expac_new(Expac **expac, const char *config_file) {
Expac *e;
enum _alpm_errno_t alpm_errno = 0;
config_t config;
@@ -688,7 +688,7 @@ int expac_new(Expac **expac, const char *config_file) {
return 0;
}
-alpm_list_t *expac_search_files(Expac *expac, alpm_list_t *targets) {
+static alpm_list_t *expac_search_files(Expac *expac, alpm_list_t *targets) {
alpm_list_t *i, *r = NULL;
for (i = targets; i; i = i->next) {
@@ -707,7 +707,7 @@ alpm_list_t *expac_search_files(Expac *expac, alpm_list_t *targets) {
return r;
}
-alpm_list_t *expac_search_local(Expac *expac, alpm_list_t *targets) {
+static alpm_list_t *expac_search_local(Expac *expac, alpm_list_t *targets) {
alpm_list_t *dblist, *r;
dblist = alpm_list_add(NULL, alpm_get_localdb(expac->alpm));
@@ -717,11 +717,11 @@ alpm_list_t *expac_search_local(Expac *expac, alpm_list_t *targets) {
return r;
}
-alpm_list_t *expac_search_sync(Expac *expac, alpm_list_t *targets) {
+static alpm_list_t *expac_search_sync(Expac *expac, alpm_list_t *targets) {
return resolve_targets(alpm_get_syncdbs(expac->alpm), targets);
}
-alpm_list_t *expac_search(Expac *expac, PackageCorpus corpus, alpm_list_t *targets) {
+static alpm_list_t *expac_search(Expac *expac, PackageCorpus corpus, alpm_list_t *targets) {
switch (corpus) {
case CORPUS_LOCAL:
return expac_search_local(expac, targets);
@@ -735,11 +735,53 @@ alpm_list_t *expac_search(Expac *expac, PackageCorpus corpus, alpm_list_t *targe
return NULL;
}
-alpm_list_t *process_targets(int argc, char **argv) {
+static int read_targets_from_file(FILE *in, alpm_list_t **targets) {
+ char line[BUFSIZ];
+ int i = 0, end = 0;
+ while(!end) {
+ line[i] = fgetc(in);
+
+ if(line[i] == EOF)
+ end = 1;
+
+ if(isspace(line[i]) || end) {
+ line[i] = '\0';
+ /* avoid adding zero length arg, if multiple spaces separate args */
+ if(i > 0) {
+ if(!alpm_list_find_str(*targets, line))
+ *targets = alpm_list_add(*targets, strdup(line));
+ i = 0;
+ }
+ } else {
+ ++i;
+ if(i >= BUFSIZ) {
+ fprintf(stderr, "error: buffer overflow on stdin\n");
+ return -1;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static alpm_list_t *process_targets(int argc, char **argv) {
alpm_list_t *r = NULL;
+ int allow_stdin;
+
+ allow_stdin = !isatty(STDIN_FILENO);
- for (int i = 0; i < argc; ++i)
- r = alpm_list_add(r, argv[i]);
+ for (int i = 0; i < argc; ++i) {
+ if (allow_stdin && strcmp(argv[i], "-") == 0) {
+ int k;
+
+ k = read_targets_from_file(stdin, &r);
+ if (k < 0)
+ return NULL;
+
+ allow_stdin = 0;
+ } else
+ r = alpm_list_add(r, strdup(argv[i]));
+ }
return r;
}
@@ -768,6 +810,8 @@ int main(int argc, char *argv[]) {
for (alpm_list_t *i = results; i; i = i->next)
print_pkg(i->data, opt_format);
+ alpm_list_free_inner(targets, free);
+ alpm_list_free(targets);
alpm_list_free(results);
expac_free(expac);