Initial submission of source code, no bugs found

Makefile

@@ -0,0 +1,15 @@
+CROSS_COMPILE ?= 
+CC := $(CROSS_COMPILE)gcc
+STRIP := $(CROSS_COMPILE)strip
+AR := $(CROSS_COMPILE)ar
+CFLAGS += -g -Wall
+LIBS = libini.so
+SLIB = libini.a
+
+all: libini.o
+	$(CC) $(CFLAGS) -FPIC -shared $^ -o $(LIBS)
+	$(AR) -rc $(SLIB) $^
+
+clean:
+	rm -rf *.o
+	rm $(LIBS) $(SLIB)

README.md

@@ -1 +1,13 @@
 # libini
+    非常小的c语言读取、写入ini配置文件c库.
+    支持字符串、整形、长整型、浮点型.
+    注释是"//"、"#"、";".
+    会读取等号右边所有字符.
+    支持等号左右有若干空格.
+    
+# build
+    git clone https://github.com/niuyuling/libini
+    cd libini
+    make
+    gcc -Wall test.c -o test -L./ -lini -static
+    ./test

config.ini

@@ -0,0 +1,7 @@
+[CAT]
+age=1343567
+name=aixiao.me
+
+a=10
+b=1234567890
+c=1.1234567

libini.c

@@ -0,0 +1,101 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "libini.h"
+
+int getinikeystring(char *title, char *key, char *filename, char *buf)
+{
+    FILE *fp;
+    int flag = 0;
+    char sTitle[64], *wTmp;
+    char sLine[1024];
+    sprintf(sTitle, "[%s]", title);
+
+    if (NULL == (fp = fopen(filename, "r"))) {
+        perror("fopen");
+        return -1;
+    }
+    while (NULL != fgets(sLine, 1024, fp)) {
+        if (0 == strncmp("//", sLine, 2))
+            continue;
+        if ('#' == sLine[0])
+            continue;
+        if (';' == sLine[0])
+            continue;
+        wTmp = strchr(sLine, '=');
+        if ((NULL != wTmp) && (1 == flag)) {
+            sLine[strlen(sLine) - 1] = '\0';
+            if (0 == strncmp(key, sLine, strlen(key)) && !(strncasecmp(strtok(sLine, "="), key, strlen(strtok(sLine, "="))))) {
+                //printf("%s\n", sLine);
+                fclose(fp);
+                while (*(wTmp + 1) == ' ') {
+                    wTmp++;
+                }
+                strcpy(buf, wTmp + 1);
+                return 0;
+            }
+        } else {
+            if (0 == strncmp(sTitle, sLine, strlen(sTitle))) {
+                flag = 1;
+            }
+        }
+    }
+    fclose(fp);
+    return -1;
+}
+
+int putinikeystring(char *title, char *key, char *val, char *filename)
+{
+    FILE *fpr;
+    FILE *fpw;
+    int flag = 0;
+    char sLine[1024], sTitle[32], *wTmp;
+    sprintf(sTitle, "[%s]", title);
+    if (NULL == (fpr = fopen(filename, "r")))
+        return -1;
+    sprintf(sLine, "%s.tmp", filename);
+    if (NULL == (fpw = fopen(sLine, "w")))
+        return -1;
+    while (NULL != fgets(sLine, 1024, fpr)) {
+        if (2 != flag) {
+            wTmp = strchr(sLine, '=');
+            if ((NULL != wTmp) && (1 == flag)) {
+                if (0 == strncmp(key, sLine, strlen(key))) {
+                    flag = 2;
+                    sprintf(wTmp + 1, " %s\n", val);
+                }
+            } else {
+                if (0 == strncmp(sTitle, sLine, strlen(sTitle))) {
+                    flag = 1;
+                }
+            }
+        }
+        fputs(sLine, fpw);
+    }
+    fclose(fpr);
+    fclose(fpw);
+    sprintf(sLine, "%s.tmp", filename);
+    return rename(sLine, filename);
+}
+
+int getinikeyint(char *title, char *key, char *filename)
+{
+    char buf[256];
+    getinikeystring(title, key, filename, buf);
+    return atoi(buf);
+}
+
+long int getinikeylong(char *title, char *key, char *filename)
+{
+    char buf[256];
+    getinikeystring(title, key, filename, buf);
+    return atol(buf);
+}
+
+float getinikeyfloat(char *title, char *key, char *filename)
+{
+    char buf[256];
+    getinikeystring(title, key, filename, buf);
+    return atof(buf);
+}
+

libini.h

@@ -0,0 +1,9 @@
+#ifndef LIBINI_H
+
+int getinikeystring(char *title, char *key, char *filename, char *buf);
+int putinikeystring(char *title, char *key, char *val, char *filename);
+int getinikeyint(char *title, char *key, char *filename);
+long getinikeylong(char *title, char *key, char *filename);
+float getinikeyfloat(char *title, char *key, char *filename);
+
+#endif

test.c

@@ -0,0 +1,17 @@
+#include "libini.h"
+#include <stdio.h>
+
+int main(void) {
+
+    char buf[50];
+    getinikeystring("CAT", "age", "config.ini", buf);
+    printf("%s\n", buf);
+
+    getinikeystring("CAT", "name", "config.ini", buf);
+    printf("%s\n", buf);
+
+    printf("%d\n", getinikeyint("CAT", "a", "config.ini"));
+    printf("%ld\n", getinikeylong("CAT", "b", "config.ini"));
+    printf("%f\n", getinikeyfloat("CAT", "c", "config.ini"));
+    return 1;
+}