95 lines
1.6 KiB
C
95 lines
1.6 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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int make_temp_dir(char *tmp) {
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if (!mkdtemp(tmp)) {
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if (errno == EINVAL)
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fprintf(stderr, "mktemp: template does not end in exactly 'XXXXX': %s\n", tmp);
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else
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fprintf(stderr, "mktemp: %s\n", strerror(errno));
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return 1;
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}
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return 0;
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}
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int get_suffix(const char *str) {
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size_t len = strlen(str);
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for (size_t i = len - 1; i > 0; i--)
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if (str[i] == 'X')
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return len - i - 1;
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return 0;
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}
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int make_temp_file(char *tmp) {
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if (!strstr(tmp, "XXXXXX")) {
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fprintf(stderr, "mktemp: too few X's in template: %s\n", tmp);
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return 1;
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}
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int fd = mkstemps(tmp, get_suffix(tmp));
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if (fd < 0) {
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fprintf(stderr, "mktemp: %s\n", strerror(errno));
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return 1;
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}
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close(fd);
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return 0;
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}
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int main(const int argc, char **argv) {
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unsigned int d_flag = 0;
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int i;
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for (i = 1; i < argc; i++) {
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if (argv[i][0] != '-')
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break;
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else if (!strcmp(argv[i], "-d"))
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d_flag = 1;
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else if (!strcmp(argv[i], "--help")) {
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printf("mktemp [-d] [file]\n");
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return 0;
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}
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}
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if (argc - i == 0) {
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fprintf(stderr, "mktemp: missing operand\n");
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return 1;
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}
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if (argc - 1 > i) {
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fprintf(stderr, "mktemp: extra operands\n");
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return 1;
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}
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char *path = getenv("TMPDIR");
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if (!path || path[0] == '\0')
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path = "/tmp";
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if (chdir(path)) {
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fprintf(stderr, "mktemp: %s\n", strerror(errno));
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return 1;
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}
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if (d_flag) {
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if (make_temp_dir(argv[i]))
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return 1;
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}
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else {
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if (make_temp_file(argv[i]))
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return 1;
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}
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printf("%s/%s\n", path, argv[i]);
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return 0;
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}
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