setprojent() 开始会反绕 project 数据库来进行启动。
getprojent() 是使用 project.h 中定义的保守最大缓冲区大小来调用的。
endprojent() 用于关闭 project 数据库并释放资源。
#include <project.h> struct project projent; char buffer[PROJECT_BUFSZ]; /* Use safe buffer size from project.h */ ... struct project *pp; setprojent(); /* Rewind the project database to start at the beginning */ while (1) { pp = getprojent(&projent, buffer, PROJECT_BUFSZ); if (pp == NULL) break; printf("%s:%d:%s\n", pp->pj_name, pp->pj_projid, pp->pj_comment); ... }; endprojent(); /* Close the database and free project resources */
以下示例调用 getprojbyid() 来获取与调用方的项目 ID 匹配的项目数据库项。然后,该示例将列显项目名称和项目 ID。
#include <project.h> struct project *pj; char buffer[PROJECT_BUFSZ]; /* Use safe buffer size from project.h */ main() { projid_t pjid; pjid = getprojid(); pj = getprojbyid(pjid, &projent, buffer, PROJECT_BUFSZ); if (pj == NULL) { /* fail; */ } printf("My project (name, id) is (%s, %d)\n", pp->pj_name, pp->pj_projid); }