diff options
Diffstat (limited to 'misc.c')
| -rw-r--r-- | misc.c | 291 |
1 files changed, 0 insertions, 291 deletions
@@ -59,149 +59,6 @@ static int check_file(Options*, const char*, const mode_t, const uint32); /* - * nvalloc() - malloc wrapper that checks for errors, and zeros out - * the memory; if an error occurs, an error is printed to stderr and - * exit is called -- this function will only return on success. - */ - -void *nvalloc(size_t size) -{ - void *m = malloc(size); - - if (!m) { - fprintf(stderr, "%s: memory allocation failure (%s)! \n", - PROGRAM_NAME, strerror(errno)); - exit(1); - } - memset((char *) m, 0, size); - return m; - -} /* nvalloc() */ - - - -/* - * nvrealloc() - realloc wrapper that checks for errors; if an error - * occurs, an error is printed to stderr and exit is called -- this - * function will only return on success. - */ - -void *nvrealloc(void *ptr, size_t size) -{ - void *m; - - if (ptr == NULL) return nvalloc(size); - - m = realloc(ptr, size); - if (!m) { - fprintf(stderr, "%s: memory re-allocation failure (%s)! \n", - PROGRAM_NAME, strerror(errno)); - exit(1); - } - return m; - -} /* nvrealloc() */ - - - -/* - * nvstrdup() - wrapper for strdup() that checks the return value; if - * an error occurs, an error is printed to stderr and exit is called - * -- this function will only return on success. - */ - -char *nvstrdup(const char *s) -{ - char *m; - - if (!s) return NULL; - - m = strdup(s); - - if (!m) { - fprintf(stderr, "%s: memory allocation failure during strdup (%s)! \n", - PROGRAM_NAME, strerror(errno)); - exit(1); - } - return m; - -} /* nvstrdup() */ - - - -/* - * nvfree() - - */ -void nvfree(char *s) -{ - if (s) free(s); - -} /* nvfree() */ - - - -/* - * nvstrtolower() - convert the given string to lowercase. - */ - -char *nvstrtolower(char *s) -{ - char *start = s; - - if (s == NULL) return NULL; - - while (*s) { - *s = tolower(*s); - s++; - } - - return start; - -} /* nvstrtolower() */ - - - -/* - * nvstrcat() - allocate a new string, copying all given strings - * into it. taken from glib - */ - -char *nvstrcat(const char *str, ...) -{ - unsigned int l; - va_list args; - char *s; - char *concat; - - l = 1 + strlen(str); - va_start(args, str); - s = va_arg(args, char *); - - while (s) { - l += strlen(s); - s = va_arg(args, char *); - } - va_end(args); - - concat = nvalloc(l); - concat[0] = 0; - - strcat(concat, str); - va_start(args, str); - s = va_arg(args, char *); - while (s) { - strcat(concat, s); - s = va_arg(args, char *); - } - va_end(args); - - return concat; - -} /* nvstrcat() */ - - - -/* * read_next_word() - given a string buf, skip any whitespace, and * then copy the next set of characters until more white space is * encountered. A new string containing this next word is returned. @@ -2544,151 +2401,3 @@ done: nvfree(cmd); return ret; } - - -/* - * nv_format_text_rows() - this function breaks the given string str - * into some number of rows, where each row is not longer than the - * specified width. - * - * If prefix is non-NULL, the first line is prepended with the prefix, - * and subsequent lines are indented to line up with the prefix. - * - * If word_boundary is TRUE, then attempt to only break lines on - * boundaries between words. - * - * XXX Note that we don't use nvalloc() or any of the other wrapper - * functions from here, so that this function doesn't require any - * non-c library symbols (so that it can be called from dlopen()'ed - * user interfaces. - */ - -TextRows *nv_format_text_rows(const char *prefix, const char *str, - int width, int word_boundary) -{ - int len, prefix_len, z, w, i; - char *line, *buf, *local_prefix, *a, *b, *c; - TextRows *t; - - /* initialize the TextRows structure */ - - t = (TextRows *) malloc(sizeof(TextRows)); - t->t = NULL; - t->n = 0; - t->m = 0; - - if (!str) return t; - - buf = strdup(str); - - z = strlen(buf); /* length of entire string */ - a = buf; /* pointer to the start of the string */ - - /* initialize the prefix fields */ - - if (prefix) { - prefix_len = strlen(prefix); - local_prefix = nvstrdup(prefix); - } else { - prefix_len = 0; - local_prefix = NULL; - } - - /* adjust the max width for any prefix */ - - w = width - prefix_len; - - do { - /* - * if the string will fit on one line, point b to the end of the - * string - */ - - if (z < w) b = a + z; - - /* - * if the string won't fit on one line, move b to where the - * end of the line should be, and then move b back until we - * find a space; if we don't find a space before we back b all - * the way up to a, just assign b to where the line should end. - */ - - else { - b = a + w; - - if (word_boundary) { - while ((b >= a) && (!isspace(*b))) b--; - if (b <= a) b = a + w; - } - } - - /* look for any newline inbetween a and b, and move b to it */ - - for (c = a; c < b; c++) if (*c == '\n') { b = c; break; } - - /* - * copy the string that starts at a and ends at b, prepending - * with a prefix, if present - */ - - len = b-a; - len += prefix_len; - line = (char *) malloc(len+1); - if (local_prefix) strncpy(line, local_prefix, prefix_len); - strncpy(line + prefix_len, a, len - prefix_len); - line[len] = '\0'; - - /* append the new line to the array of text rows */ - - t->t = (char **) realloc(t->t, sizeof(char *) * (t->n + 1)); - t->t[t->n] = line; - t->n++; - - if (t->m < len) t->m = len; - - /* - * adjust the length of the string and move the pointer to the - * beginning of the new line - */ - - z -= (b - a + 1); - a = b + 1; - - /* move to the first non whitespace character (excluding newlines) */ - - if (word_boundary && isspace(*b)) { - while ((z) && (isspace(*a)) && (*a != '\n')) a++, z--; - } else { - if (!isspace(*b)) z++, a--; - } - - if (local_prefix) { - for (i = 0; i < prefix_len; i++) local_prefix[i] = ' '; - } - - } while (z > 0); - - if (local_prefix) free(local_prefix); - free(buf); - - return t; - -} /* nv_format_text_rows() */ - - - -/* - * nv_free_text_rows() - free the TextRows data structure allocated by - * nv_format_text_rows() - */ - -void nv_free_text_rows(TextRows *t) -{ - int i; - - if (!t) return; - for (i = 0; i < t->n; i++) free(t->t[i]); - if (t->t) free(t->t); - free(t); - -} /* nv_free_text_rows() */ |