59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "defines.h"
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char* text(char *path, unsigned long *file_size);
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char* preview_file(char *path, unsigned long file_size){
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/* this calls "file" on path */
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char *file_buffer;
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unsigned long cmd_size = 0;
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static char *cmd_str = "file --mime-type -b ./\"";
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unsigned long cmd_len = strlen(cmd_str);
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unsigned int path_len = strlen(path);
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char *cmd = malloc((cmd_len + path_len) + 2);
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memset(cmd, ' ', cmd_len + path_len);
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memcpy(cmd, cmd_str, cmd_len);
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memcpy(cmd + cmd_len, path, path_len);
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cmd[cmd_len + path_len] = '\"';
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cmd[cmd_len + path_len + 1] = '\0';
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FILE *cmd_open = popen(cmd, "r");
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char *line;
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size_t size = 0;
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char *tmp = getline(&line, &size, cmd_open);
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cmd_size = strlen(line);
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pclose(cmd_open);
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if (strstr(line, "text")) {
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file_buffer = text(path, &file_size);
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} else {
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file_buffer = malloc(cmd_size + 1);
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memset(file_buffer, ' ', cmd_size);
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memcpy(file_buffer, line, cmd_size);
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file_buffer[cmd_size] = '\0';
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}
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free(cmd);
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return file_buffer;
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}
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char* text(char *path, unsigned long *file_size) {
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char *file_buffer = malloc(*file_size + 1);
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FILE *fp = fopen(path, "r");
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fread(file_buffer, *file_size, 1, fp);
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file_buffer[*file_size] = '\0';
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return file_buffer;
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}
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/*
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FILE *cmd_open = popen(cmd, "r");
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memset(file_buffer, ' ', file_size);
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fread(file_buffer, file_size, 1, cmd_open);
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file_buffer[file_size] = '\0';
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pclose(cmd_open);
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return file_buffer;
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*/
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