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-rw-r--r--src/PostscriptDSC.cxx34
1 files changed, 20 insertions, 14 deletions
diff --git a/src/PostscriptDSC.cxx b/src/PostscriptDSC.cxx
index 345a32b..85a9d5b 100644
--- a/src/PostscriptDSC.cxx
+++ b/src/PostscriptDSC.cxx
@@ -53,6 +53,7 @@ PostscriptDSC::parse(int fd) {
int p1 = 0, ps;
int i = 0;
int bb_read = 0;
+ int max_pages = 2;
bb_x = 0;
bb_y = 0;
@@ -76,6 +77,11 @@ PostscriptDSC::parse(int fd) {
return 1;
}
+ page_off = (size_t*) malloc(sizeof(size_t) * max_pages);
+ memset(page_off, 0, sizeof(size_t) * max_pages);
+ page_len = (size_t*) malloc(sizeof(size_t) * max_pages);
+ memset(page_len, 0, sizeof(size_t) * max_pages);
+
while (fgets(linebuf, sizeof(linebuf), fp) != NULL) {
if (!bb_read &&
sscanf(linebuf, "%%%%BoundingBox: %d %d %d %d", &x, &y, &w, &h) == 4) {
@@ -86,14 +92,6 @@ PostscriptDSC::parse(int fd) {
bb_read++;
} else if (strncmp(linebuf, "%%EndSetup", strlen("%%EndSetup")) == 0) {
setup_len = ftello(fp);
- } else if (pages == 0 && sscanf(linebuf, "%%%%Pages: %d", &ps) == 1) {
-
- pages = ps;
- page_off = (size_t*) malloc(sizeof(size_t) * pages);
- memset(page_off, 0, sizeof(size_t) * pages);
- page_len = (size_t*) malloc(sizeof(size_t) * pages);
- memset(page_len, 0, sizeof(size_t) * pages);
-
} else if (strncmp(linebuf, "%%Page: ", strlen("%%Page: ")) == 0) {
char *p_str = &linebuf[strlen(linebuf)];
@@ -107,15 +105,19 @@ PostscriptDSC::parse(int fd) {
p1 = atoi(p_str);
- if (!page_off || !page_len) {
- fprintf(stderr, "Number of pages not defined\n");
+ if (p1 < 1) {
+ fprintf(stderr, "Page %d out of range\n", p1);
return 1;
+ }
+
+ if (p1 > max_pages) {
+ page_off = (size_t*) realloc(page_off, 2 * max_pages * sizeof(size_t));
+ memset(page_off + max_pages, 0, sizeof(size_t) * max_pages);
+ page_len = (size_t*) realloc(page_len, 2 * max_pages * sizeof(size_t));
+ memset(page_len + max_pages, 0, sizeof(size_t) * max_pages);
+ max_pages = max_pages * 2;
}
- if (p1 > pages || p1 < 1) {
- fprintf(stderr, "Page %d out of range (1 - %d)\n", p1, pages);
- return 1;
- }
if (page_off[p1 - 1] != 0) {
fprintf(stderr, "Page %d already defined\n", p1);
return 1;
@@ -129,6 +131,10 @@ PostscriptDSC::parse(int fd) {
if (p1 > 1) {
page_len[p1 - 2] = page_off[p1 - 1] - page_off[p1 - 2];
}
+
+ if (p1 > pages) {
+ pages = p1;
+ }
}
}