diff options
Diffstat (limited to 'getgbook.c')
| -rw-r--r-- | getgbook.c | 49 |
1 files changed, 28 insertions, 21 deletions
@@ -1,4 +1,4 @@ -/* See COPYING file for copyright, license and warranty details. */ +/* See COPYING file for copyright and license details. */ #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -11,19 +11,22 @@ " otherwise, all pages in stdin will be downloaded\n" #define URLMAX 1024 +#define STRMAX 1024 +#define PGCODELEN 3 +#define RETRYNUM 5 typedef struct { int num; char url[URLMAX]; - char name[80]; + char name[STRMAX]; } Page; -char pagecodes[][3] = { "PP", "PR", "PA", "PT", "\0" }; +char pagecodes[][PGCODELEN] = { "PP", "PR", "PA", "PT", "\0" }; Page *getpagedetail(char *bookid, char *pg, char *cookie) { - char url[URLMAX]; - char *buf, *c, *d, m[80], *p; + char url[URLMAX], m[STRMAX]; + char *c, *d, *p, *buf = NULL; Page *page; snprintf(url, URLMAX, "/books?id=%s&pg=%s&jscmd=click3", bookid, pg); @@ -31,12 +34,12 @@ Page *getpagedetail(char *bookid, char *pg, char *cookie) if(!get("books.google.com", url, cookie, NULL, &buf)) return NULL; - snprintf(m, 80, "\"pid\":\"%s\"", pg); + snprintf(m, STRMAX, "\"pid\":\"%s\"", pg); if(!(c = strstr(buf,m))) return NULL; page = malloc(sizeof(Page)); - strncpy(page->name, pg, 80); + strncpy(page->name, pg, STRMAX); page->url[0] = '\0'; page->num = -1; @@ -68,7 +71,8 @@ Page *getpagedetail(char *bookid, char *pg, char *cookie) int main(int argc, char *argv[]) { - char *bookid, *tmp, pg[16], buf[1024], n[80], code[3], cookie[COOKIEMAX]; + char *bookid, *tmp, *code; + char pg[STRMAX], buf[BUFSIZ], n[STRMAX], cookie[COOKIEMAX] = ""; int i, c, retry; Page *page; @@ -81,13 +85,13 @@ int main(int argc, char *argv[]) bookid = argv[argc-1]; if(argv[1][0] == '-') { - strncpy(code, pagecodes[0], 3); + code = pagecodes[0]; c = i = retry = 0; while(++i) { - snprintf(pg, 15, "%s%d", code, i); + snprintf(pg, STRMAX, "%s%d", code, i); if(!(page = getpagedetail(bookid, pg, cookie))) { /* no more pages with that code */ - strncpy(code, pagecodes[++c], 3); + code = pagecodes[++c]; if(code[0] == '\0') break; i=0; continue; @@ -95,7 +99,7 @@ int main(int argc, char *argv[]) if(!page->url[0]) { free(page); /* try with fresh cookie */ - if(retry < 5) { + if(retry < RETRYNUM) { get("books.google.com", "/", NULL, cookie, &tmp); free(tmp); retry++; @@ -109,11 +113,13 @@ int main(int argc, char *argv[]) retry=0; if(argv[1][1] == 'a') { if(page->num != -1) - snprintf(n, 80, "%05d.png", page->num); + snprintf(n, STRMAX, "%04d.png", page->num); + else + snprintf(n, STRMAX, "%s.png", page->name); + if(gettofile("books.google.com", page->url, cookie, NULL, n)) + fprintf(stderr, "%s failed\n", pg); else - snprintf(n, 80, "%s.png", page->name); - gettofile("books.google.com", page->url, cookie, NULL, n); - printf("Downloaded page %d\n", page->num); + printf("Downloaded page %d\n", page->num); } else { printf("%s ", page->name); if(page->num != -1) printf("%d", page->num); @@ -122,20 +128,21 @@ int main(int argc, char *argv[]) free(page); } } else { - while(fgets(buf, 1024, stdin)) { + while(fgets(buf, BUFSIZ, stdin)) { sscanf(buf, "%15s", pg); - for(retry = 0; retry < 5; retry++) { + for(retry = 0; retry < RETRYNUM; retry++) { get("books.google.com", "/", NULL, cookie, &tmp); if((page = getpagedetail(bookid, pg, cookie)) && page->url[0]) { - snprintf(n, 80, "%05d.png", page->num); - gettofile("books.google.com", page->url, cookie, NULL, n); + snprintf(n, STRMAX, "%04d.png", page->num); + if(gettofile("books.google.com", page->url, cookie, NULL, n)) + continue; printf("Downloaded page %d\n", page->num); free(page); break; } if(page) free(page); } - if(retry == 5) + if(retry == RETRYNUM) fprintf(stderr, "%s failed\n", pg); } } |