126 lines
2.6 KiB
C
126 lines
2.6 KiB
C
#include "convert.h"
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#include "error.h"
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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long int get_number(const char* text) {
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char* end;
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long int n = strtol(text, &end, 10);
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if (text == end) {
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error("%s is not a valid number", text);
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}
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return n;
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}
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long int get_blkm(const char* text) {
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char* end;
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long int n = strtol(text, &end, 10);
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if (text == end) {
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error("%s is not a valid bkm", text);
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}
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if (*end == '\0') return n;
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switch (*end) {
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case 'K':
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case 'k':
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return n * 1024;
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case 'B':
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case 'b':
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return n * 512;
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case 'M':
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case 'm':
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return n * 1024 * 1204;
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default:
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error("invalid bkm type %c", *end);
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}
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/* shouldnt get here anyways */
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return 0;
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}
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mode_t get_mode(const char* next) {
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char* end = NULL;
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mode_t mode = (mode_t)strtol(next, &end, 8);
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if (!end) return 0;
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while(isspace(*end)) end++;
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if (*end != '\0' || (unsigned) mode >= 010000) {
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error("invalid file mode: `%s`", next);
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}
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return mode;
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}
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bool streql(const char* a, const char* b) {
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int n = 0;
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if (*a != *b) return false;
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while (true) {
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if (*(a+n) != *(b+n)) return false;
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if (*(a+n) == '\0') return true;
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++n;
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}
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}
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bool prefix(const char* pre, const char* str) {
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return strncmp(pre, str, strlen(pre)) == 0;
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}
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static char fs_types[5] = {'K','M','G','T','P'};
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void print_file_size(size_t bytes, char buf[5]) {
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int index, n;
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float next;
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index = 0;
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next = bytes;
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while (true) {
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if (next < 1000) {
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break;
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}
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if (index == 5) {
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printf("999P");
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return;
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}
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next /= 1024;
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index++;
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}
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n = snprintf(buf, 4, "%u", (int)(next+.5));
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if (index > 0) {
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buf[n] = (fs_types[index - 1]);
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n++;
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}
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buf[n] = '\0';
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}
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static char* months[12] =
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{"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
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void print_date_time(time_t mills, char buf[13]) {
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struct tm* info;
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int n;
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info = localtime(&mills);
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n = snprintf(buf, 5, "%s ", months[info->tm_mon]);
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if (info->tm_mday < 10) {
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buf[n] = ' ';
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n++;
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}
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snprintf(buf + n, 13 - n, "%d %02d:%02d ", info->tm_mday, info->tm_hour, info->tm_sec);
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}
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void print_file_path(char* path) {
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if (streql("-", path)) {
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printf("(standard input)");
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} else {
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printf("%s", path);
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}
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}
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