vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | #include "asn1c_internal.h" |
| 2 | |
| 3 | /* |
| 4 | * Add an elementary chunk of target language text |
| 5 | * into appropriate output stream. |
| 6 | */ |
| 7 | int |
| 8 | asn1c_compiled_output(arg_t *arg, const char *fmt, ...) { |
| 9 | const char *p; |
| 10 | int lf_found; |
| 11 | va_list ap; |
| 12 | out_chunk_t *m; |
| 13 | char *buf; |
| 14 | int ret; |
| 15 | |
| 16 | /* |
| 17 | * Make sure the output has a single LF and only at the end. |
| 18 | */ |
| 19 | for(lf_found = 0, p = fmt; *p; p++) { |
| 20 | if(*p == '\n') { |
| 21 | lf_found++; |
| 22 | assert(p[1] == '\0'); |
| 23 | } |
| 24 | } |
| 25 | assert(lf_found <= 1); |
| 26 | |
| 27 | /* |
| 28 | * Print out the indentation. |
| 29 | */ |
| 30 | if(arg->indented == 0) { |
| 31 | int i = arg->indent_level; |
| 32 | arg->indented = 1; |
| 33 | while(i--) { |
| 34 | ret = asn1c_compiled_output(arg, "\t"); |
| 35 | if(ret == -1) return -1; |
| 36 | } |
| 37 | } |
| 38 | |
| 39 | /* |
| 40 | * Estimate necessary size. |
| 41 | */ |
| 42 | buf = ""; |
| 43 | va_start(ap, fmt); |
| 44 | ret = vsnprintf(buf, 0, fmt, ap); |
| 45 | va_end(ap); |
| 46 | assert(ret >= 0); |
| 47 | |
| 48 | /* |
| 49 | * Allocate buffer. |
| 50 | */ |
| 51 | m = calloc(1, sizeof(out_chunk_t)); |
| 52 | if(m == NULL) return -1; |
| 53 | m->len = ret + 1; |
| 54 | m->buf = malloc(ret + 1); |
| 55 | if(m->buf == NULL) { |
| 56 | free(m); |
| 57 | return -1; |
| 58 | } |
| 59 | |
| 60 | /* |
| 61 | * Fill the buffer. |
| 62 | */ |
| 63 | va_start(ap, fmt); |
| 64 | ret = vsnprintf(m->buf, m->len, fmt, ap); |
| 65 | assert(ret < m->len); |
| 66 | m->len = ret; |
| 67 | va_end(ap); |
| 68 | |
| 69 | TQ_ADD(&(arg->target->targets[arg->target->target]), m, next); |
| 70 | |
| 71 | if(lf_found) |
| 72 | arg->indented = 0; |
| 73 | |
| 74 | return 0; |
| 75 | } |