mirror of https://github.com/pygos/pkg-utils.git
99 lines
1.6 KiB
C
99 lines
1.6 KiB
C
#include "pack.h"
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static int handle_requires(input_file_t *f, void *obj)
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{
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char *ptr = f->line, *end;
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pkg_desc_t *desc = obj;
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dependency_t *dep;
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size_t len;
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while (*ptr != '\0') {
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while (isspace(*ptr))
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++ptr;
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end = ptr;
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while (*end != '\0' && !isspace(*end))
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++end;
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len = end - ptr;
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if (len == 0)
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break;
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if (len > 0xFF) {
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input_file_complain(f, "dependency name too long");
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return -1;
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}
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dep = calloc(1, sizeof(*dep) + len + 1);
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if (dep == NULL) {
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input_file_complain(f, "out of memory");
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return -1;
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}
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memcpy(dep->name, ptr, len);
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dep->type = PKG_DEPENDENCY_REQUIRES;
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dep->next = desc->deps;
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desc->deps = dep;
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ptr = end;
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}
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return 0;
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}
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static int handle_name(input_file_t *f, void *obj)
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{
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pkg_desc_t *desc = obj;
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if (desc->name != NULL) {
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input_file_complain(f, "name redefined");
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return -1;
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}
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desc->name = strdup(f->line);
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if (desc->name == NULL) {
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input_file_complain(f, "out of memory");
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return -1;
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}
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return 0;
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}
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static const keyword_handler_t line_hooks[] = {
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{ "requires", handle_requires },
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{ "name", handle_name },
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};
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#define NUM_LINE_HOOKS (sizeof(line_hooks) / sizeof(line_hooks[0]))
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int desc_read(const char *path, pkg_desc_t *desc)
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{
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input_file_t f;
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memset(desc, 0, sizeof(*desc));
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if (open_file(&f, path))
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return -1;
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if (process_file(&f, line_hooks, NUM_LINE_HOOKS, desc)) {
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cleanup_file(&f);
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return -1;
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}
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cleanup_file(&f);
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return 0;
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}
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void desc_free(pkg_desc_t *desc)
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{
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dependency_t *dep;
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while (desc->deps != NULL) {
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dep = desc->deps;
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desc->deps = dep->next;
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free(dep);
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}
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free(desc->name);
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}
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